Intelligent downhole remote leakage test system and method

Abstract

The present invention discloses an intelligent underground remote leakage test system and method, which relate to the technical field of leakage test. The system comprises: a 5G / 6G remote leakage test module, a 5G / 6G remote leakage communication module, a ground resistance detection module, and a remote leakage power supply, which are interconnected and installed in a 5G / 6G remote leakage flameproof casing, transmitted to a ground communication system through an underground communication system, connected to an anti-violation cloud system and a mobile terminal APP, and the remote leakage test module is connected to a shunt switch A through a three-phase low-voltage line, or connected to a high-voltage power supply device through an insulation monitoring line.

Description

Technical Field

[0001] The invention relates to the technical field of leakage testing, and in particular to an intelligent underground remote leakage testing system and method. Background Art

[0002] The "Necessity Analysis of Remote Manual Tripping Test Technology" in "Theory and Application of Anti-Violation Technology" points out that the underground power supply system must conduct a remote leakage tripping test. For this reason, the invention patent "A remote leakage test method and equipment for coal mines" has been obtained. The patented equipment that has obtained the "Safety Standard" is a 485 communication port, which cannot adapt to the current 4G / 5G / 6G, wifi and other wireless communication and optical cable communication needs. In addition, the equipment can only conduct remote leakage tests at the end of the 127V-1140V line of the three-phase low-voltage power supply system, and cannot conduct remote leakage tests at the end of the 10KV / 6KV / 3.3KV line of the three-phase high-voltage power supply system. The first reason is that the working voltage level does not match, and the second reason is that the risk of gas explosion caused by high-voltage leakage tests underground is very high.

[0003] In addition, the previous remote leakage test method and problems: Article 19 of the "Detailed Rules for the Installation, Operation, Maintenance and Repair of Low-voltage Leakage Detection and Protection Devices in Coal Mines" stipulates: The leakage detection and protection device in operation shall be tested for remote manual leakage tripping at least once a month. The method is: one end of the test resistor in the electromagnetic starter is connected to the screw buckle of the fuse tube, and the other end is connected to the outer shell. After the outer cover is covered, power is supplied to observe whether the feeder switch trips. If it trips, it means that the leakage detection and protection device is reliable. After the test is completed, the test resistor must be removed. When the test is carried out according to this test method, before the test, it is necessary to cut off the power, open the flameproof switch cover, check the electricity, discharge, connect the test resistor, close the cover, and supply power; after the test, it is necessary to open the flameproof switch cover again, check the electricity, discharge, remove the test resistor, close the cover, and supply power to the feeder switch. In the process of completing these operations, there are unsafe behaviors, which have great disadvantages. Summary of the invention

[0004] The present invention provides an intelligent underground remote leakage test system and method, so as to solve the technical problem of how to perform a remote leakage test on the ground through an anti-violation cloud system.

[0005] The embodiment of the present invention provides an intelligent downhole remote leakage test system, which is characterized by comprising:

[0006] The anti-violation cloud system 17 is used to send remote leakage test instructions and receive remote leakage test results;

[0007] The ground communication system 15 is used to receive the remote leakage test instruction from the anti-violation cloud system 17 and send the remote leakage test result to the anti-violation cloud system 17;

[0008] The underground communication system 13 is used to receive the remote leakage test instruction from the surface communication system 15 and send the remote leakage test result to the surface communication system 15;

[0009] The remote leakage test device 12 is used to receive and perform a leakage test according to the received remote leakage test instruction, and feed back the remote leakage test result to the anti-violation cloud system 17 via the underground communication system 13 and the ground communication system 15;

[0010] The remote leakage test device 12 includes: a remote leakage communication module 23, a remote leakage test module 31 and a ground resistance detection module 25;

[0011] The remote leakage communication module 23 forwards the remote leakage test instruction sent by the downhole communication system 13 to the remote leakage test module 31;

[0012] The remote leakage test module 31 connects the remote leakage test circuit including the shunt switch 5 connected to the three-phase low-voltage line according to the remote leakage test instruction, and sends the remote leakage test result including the leakage action time of the remote leakage test circuit to the remote leakage communication module 23; or performs a leakage test on the end of the three-phase high-voltage power line according to the remote leakage test instruction, and sends the leakage test result of the end of the three-phase high-voltage line to the remote leakage communication module 23;

[0013] The grounding resistance detection module 25 detects the grounding resistance value according to the remote leakage test instruction, and sends the grounding resistance value result to the remote leakage communication module 23;

[0014] The remote leakage test instruction includes a three-phase low-voltage line remote leakage test instruction or a three-phase high-voltage power line remote leakage test instruction or a ground resistance detection instruction.

[0015] Preferably, the remote leakage test module 31 operates according to the remote leakage test instruction of the three-phase low-voltage line by driving the remote leakage test relay K1 39 connected to the remote leakage test module 31, and its normally open contact K11 41 is closed, so that the remote leakage test circuit including the shunt switch 5 and the leakage test resistor RS 43 connected to the three-phase low-voltage line is connected, so that the leakage test resistor RS 43 is connected to the ground to generate leakage current, and at the same time, the timer set in the remote leakage test module 31 is started to count, and the signal converter 40 set on the three-phase low-voltage line detects its three-phase voltage signal, and after the shunt switch 5 of the three-phase low-voltage line is disconnected, the signal converter 40 sends the voltage-free detection result to the remote leakage test module 31, so that the remote leakage test module 31 obtains the leakage action time of the remote leakage test circuit according to the detection result, and sends the remote leakage test result including the three-phase voltage signal and the leakage action time to the remote leakage communication module 23.

[0016] Preferably, the anti-violation cloud system 17 receives the remote leakage test result including the three-phase voltage signal and the leakage action time sent by the remote leakage test module 31 of the remote leakage test device 12 via the underground communication system 13, the ground communication system 15 and the remote leakage communication module 23;

[0017] If the three-phase voltage signal changes from energized to de-energized, the remote leakage test of the three-phase low-voltage line is successful, and the leakage action time is compared with the pre-stored leakage action time threshold. If the leakage action time is greater than the leakage action time threshold, an alarm is triggered and the action time value is displayed. If the leakage action time is not greater than the leakage action time threshold, no alarm is triggered and the action time value is displayed.

[0018] If the three-phase voltage signal does not change from energized to de-energized, the three-phase low-voltage line remote leakage test fails.

[0019] Preferably, the remote leakage test module 31 performs a leakage test on the end of the three-phase high-voltage power line according to the remote leakage test instruction, including:

[0020] The remote leakage test module 31 drives the high-voltage test relay K4 61 connected to the remote leakage test module 31 to operate according to the remote leakage test instruction of the three-phase high-voltage power line, and its normally open contact K41 is closed, the terminal element 62 is connected, and the monitoring power supply 66 of the high-voltage insulation monitoring line 33 is turned on, thereby driving the high-voltage equipment insulation monitoring relay K6 67 connected to the monitoring power supply 66 to operate, and its normally closed contact K61 is opened, so that the high-voltage circuit breaker C2 63 of the three-phase high-voltage switch 35 connected to the three-phase high-voltage power line 65 is powered off, thereby cutting off the three-phase high-voltage power line 65; or the normally open contact K62 of the high-voltage equipment insulation monitoring relay K6 67 is closed, driving the high-voltage insulation monitoring test report relay K7 64 to operate, and the action signal after the normally open contact is closed is sent to the remote leakage test module 31 as a leakage test result containing the end of the three-phase high-voltage line.

[0021] Preferably, the grounding resistance detection module 25 detects the grounding resistance value according to the remote leakage test instruction, including:

[0022] The grounding resistance detection module 25 detects the small grounding resistance Rx 251 according to the grounding resistance detection instruction to obtain the grounding resistance value data of the small grounding resistance Rx 251;

[0023] The ground resistance detection module 25 consists of three measuring electrodes N, P, and Q, wherein the N electrode lead is connected to the test resistor R S43 and the small grounding resistor Rx 251, and is connected to the grounding grid via the small grounding resistor Rx 251, a measuring grounding electrode Pd 252 is driven in 5 meters away from the grounding grid, and a measuring grounding electrode Qd253 is driven in 5 meters away from the grounding electrode Pd 252, so that the P electrode lead is connected to the grounding electrode Pd 252, and the Q electrode lead is connected to the grounding electrode Qd253.

[0024] Preferably, the grounding resistance detection module 25 detects the grounding resistance value according to the remote leakage test instruction and further includes:

[0025] The grounding resistance detection module 25 detects the large grounding resistance Rd 259 according to the grounding resistance detection instruction to obtain the grounding resistance value data of the large grounding resistance Rd 259;

[0026] The ground resistance detection module 25 consists of three measuring electrodes N, P, and Q, wherein the N electrode lead is connected to the test resistor R S 43 and a large grounding resistor Rd 259, and is connected to a grounding grid 450 via the large grounding resistor Rd 259. The P electrode and the Q electrode are connected in parallel and connected to the grounding electrode of the equipment casing.

[0027] Preferably, the anti-violation cloud system 17 receives the grounding resistance value data of the small grounding resistor Rx 251 or the grounding resistance value data of the large grounding resistor Rd 259 sent by the grounding resistance detection module 25 of the remote leakage test device 12 via the underground communication system 13, the ground communication system 15 and the remote leakage communication module 23, and when the grounding resistance value data of the small grounding resistor Rx 251 exceeds the specified small grounding resistance value or when the grounding resistance value data of the large grounding resistor Rd 259 exceeds the specified large grounding resistance value, an instruction is sent to the remote leakage test device 12 to drive the grounding electrode suspension locking relay K3 250 to operate, and its normally closed contact K31 42 is disconnected, and the locking test is continued.

[0028] Preferably, the remote leakage communication module 23 includes:

[0029] The signal conversion circuit module 191 has an input end connected to a plurality of interface circuits and an output end connected to the signal processing module 192;

[0030] A remote controller 193 connected to the input terminal of the signal processing module 192, used to send a remote control signal to the signal processing module 192;

[0031] A plurality of antennas connected to the output end of the signal processing module 192, for sending wireless signals to the downhole communication system 13;

[0032] Wherein, the plurality of interface circuits include: an anti-violation signal interface circuit 205, an electrical / non-electrical signal interface circuit 203, a ground resistance test signal interface circuit 205, and a remote leakage detection signal interface circuit 207;

[0033] Wherein, the multiple antennas include:

[0034] An anti-violation antenna 195 mounted outside the flameproof enclosure;

[0035] An antenna A 197 installed inside the flameproof enclosure and transmitting wireless signals through the flameproof enclosure observation window;

[0036] Antenna B 199 installed inside the flameproof enclosure and transmitting wireless signals through the gap of the flameproof enclosure;

[0037] Preferably, the anti-violation antenna 195 is connected to the remote leakage communication module 23 disposed in the remote leakage flameproof enclosure 21 through a communication line through a communication line sleeve 118 fixed on the flameproof enclosure partition 115 and a cable lead-in device 117 fixed on the remote leakage flameproof enclosure 21;

[0038] Wherein, the anti-violation antenna 195 is arranged inside the anti-violation cover opening sensor 107 or the anti-violation technology product protective cover 99;

[0039] The communication line is an optical cable or a coaxial cable.

[0040] The embodiment of the present invention also provides an intelligent underground remote leakage test method, comprising:

[0041] An anti-violation cloud system 17 is provided for sending remote leakage test instructions and receiving remote leakage test results;

[0042] A ground communication system 15 disposed on the ground, for receiving a remote leakage test instruction from the anti-violation cloud system 17 and sending a remote leakage test result to the anti-violation cloud system 17;

[0043] A downhole communication system 13 arranged downhole, used for receiving a remote leakage test instruction from the ground communication system 15 and sending a remote leakage test result to the ground communication system 15;

[0044] A remote leakage test device 12 disposed underground is used to receive and perform a leakage test according to the received remote leakage test instruction, and feed back the remote leakage test result to the anti-violation cloud system 17 via the underground communication system 13 and the ground communication system 15;

[0045] The remote leakage test device 12 includes: a remote leakage communication module 23, a remote leakage test module 31 and a ground resistance detection module 25;

[0046] The remote leakage communication module 23 forwards the remote leakage test instruction sent by the downhole communication system 13 to the remote leakage test module 31;

[0047] The remote leakage test module 31 connects the remote leakage test circuit including the shunt switch 5 connected to the three-phase low-voltage line according to the remote leakage test instruction, and sends the remote leakage test result including the leakage action time of the remote leakage test circuit to the remote leakage communication module 23; or performs a leakage test on the end of the three-phase high-voltage line according to the remote leakage test instruction, and sends the leakage test result of the end of the three-phase high-voltage line to the remote leakage communication module 23;

[0048] The grounding resistance detection module 25 detects the grounding resistance value according to the remote leakage test instruction, and sends the grounding resistance value result to the remote leakage communication module 23;

[0049] The remote leakage test instruction includes a three-phase low-voltage line remote leakage test instruction or a three-phase high-voltage line remote leakage test instruction or a ground resistance detection instruction.

[0050] The beneficial effects of the present invention are that it can realize remote leakage testing of 4G / 5G / 6G, wifi, and optical cable communications, can realize insulation monitoring testing of 10KV / 6KV / 3.3KV lines, and can perform remote leakage testing on the ground through an anti-violation cloud system. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a schematic diagram of an intelligent downhole remote leakage test system provided by the present invention;

[0052] Figure 2 It is an equivalent principle diagram of the remote leakage test module provided by the present invention;

[0053] Figure 3 It is a schematic diagram of a remote leakage communication module provided by the present invention;

[0054] Figure 4 It is a schematic diagram of the test principle for measuring small ground resistance provided by the present invention;

[0055] Figure 5 It is a schematic diagram of the large ground resistance test principle provided by the present invention;

[0056] Figure 6 This is a schematic diagram of a 5G / 6G long-distance leakage flameproof enclosure provided by the present invention;

[0057] Figure 7 The present invention is a schematic diagram of the high voltage insulation monitoring test principle.

[0058] In the figure, 1-127V-1140V three-phase low-voltage power supply line single-line diagram; 3-main feeder switch; 5-branch switch A; 7-branch switch B; 9-5G / 6G intelligent remote leakage test device A; 11-5G / 6G intelligent remote leakage test device B; 12-5G / 6G intelligent remote leakage test device C; 13-underground communication system, including 5G / 6G base stations, switches, ring networks, etc.; 15-ground communication processing center; 17-anti-violation cloud system, including ground anti-violation information processing platform, anti-violation cloud space, etc.; 19-mobile phone anti-violation terminal APP; 21-5G / 6G remote leakage explosion-proof Housing; 23-5G / 6G remote leakage communication module, including 5G / 6G mobile phone; 25-ground resistance general detection module; 27-first auxiliary grounding electrode; 29-first main grounding electrode; 30-remote leakage power supply; 31-5G / 6G remote leakage test module; 33-3.3~10KV three-phase high-voltage power supply line insulation monitoring line; 34-mobile substation; 35-3.3~10KV three-phase high-voltage switch; 36(65)-3.3~10KV three-phase high-voltage power supply line; 39-remote leakage test relay; 40-signal converter; 42-grounding electrode hanging lock relay normally closed contact; 43-test resistor R S; 45-second auxiliary grounding electrode; 46-feed switch contactor C, its contact C157; 47-second main grounding electrode zd; 49-leakage protection power supply; 51-leakage protection relay K2, its normally closed contact K21; 53-leakage protection interface circuit; 55-127V~1140V three-phase line; 191-signal conversion circuit template; 192-5G / 6G signal processing module; 193-5G / 6G module remote control; 195-anti-violation antenna; 197-antenna A; 199-antenna B; 201-anti-violation signal interface circuit; 203-electrical / non-electrical signal interface circuit; 205-ground resistance test signal interface circuit Circuit; 207-remote leakage detection signal interface circuit; grounding electrode hanging locking relay K3; 257-grounding resistance digital measurement module; 252-grounding electrode Pd; 253-grounding electrode Qd; 251-small grounding resistance; 259-large grounding resistance; 450-earth; 85-two anti-violation technology product locks installed on the disconnector; 89-anti-violation door opening sensor; 91-door cover; 93-battery casing and battery; 95-door cover fastening bolts; 96-casing observation window; 97-spiral trumpet mouth; 99-anti-violation technology product protective cover; 101-wiring cavity cover; 103-wiring cavity cover fastening bolts; 105-emergency first aid supplies. 107- Anti-illegal cover opening sensor; 109- Emergency first aid lighting indicator; 111- Protective cover fastening bolts; 115- Remote leakage flameproof enclosure partition; 117- Cable entry device; 118- Communication line casing; 61- High-voltage test relay K4; 62- Terminal element; 63- High-voltage circuit breaker C2; 66- Power supply added to the monitoring line by the high-voltage equipment; 67- High-voltage equipment insulation monitoring relay; 64- Insulation monitoring test report relay K7. DETAILED DESCRIPTION

[0059] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In the subsequent description, the use of suffixes such as "module", "component" or "unit" used to represent elements is only to facilitate the description of the present invention and has no specific meaning in itself. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0060] Embodiment 1:

[0061] Figure 1 Schematic diagram of an intelligent downhole remote leakage test system provided by the present invention. Figure 1As shown, it includes: an anti-violation cloud system 17, which is used to send a remote leakage test instruction and receive a remote leakage test result; a ground communication system 15, which is used to receive a remote leakage test instruction from the anti-violation cloud system 17 and send the remote leakage test result to the anti-violation cloud system 17; an underground communication system 13, which is used to receive a remote leakage test instruction from the ground communication system 15 and send the remote leakage test result to the ground communication system 15; a remote leakage test device 12, which is used to receive and perform a leakage test according to the received remote leakage test instruction, and feed back the remote leakage test result to the anti-violation cloud system 17 via the underground communication system 13 and the ground communication system 15; the remote leakage test device 12 includes: a remote leakage communication module 23, a remote leakage test module 31 and a ground resistance detection module 25; wherein the remote leakage communication module 23 sends the remote leakage test instruction to the ground communication system 15; The remote leakage test instruction sent by the underground communication system 13 is forwarded to the remote leakage test module 31; the remote leakage test module 31 connects the remote leakage test circuit including the branch switch 5 connected to the three-phase low-voltage line according to the remote leakage test instruction, and sends the remote leakage test result of the remote leakage test circuit including the leakage action time to the remote leakage communication module 23; or performs a leakage test on the end of the three-phase high-voltage power line according to the remote leakage test instruction, and sends the leakage test result at the end of the three-phase high-voltage line to the remote leakage communication module 23; the grounding resistance detection module 25 detects the grounding resistance value according to the remote leakage test instruction, and sends the grounding resistance value result to the remote leakage communication module 23; wherein the remote leakage test instruction includes a three-phase low-voltage line remote leakage test instruction or a three-phase high-voltage power line remote leakage test instruction or a grounding resistance detection instruction.

[0062] In an embodiment of the present invention, the remote leakage test module 31 drives the remote leakage test relay K1 39 connected to the remote leakage test module 31 to operate according to the remote leakage test instruction of the three-phase low-voltage line, and its normally open contact K11 41 is closed, so as to connect the remote leakage test circuit including the shunt switch 5 and the leakage test resistor RS 43 connected to the three-phase low-voltage line, so that the leakage test resistor RS 43 is connected to the ground to generate leakage current, and at the same time, the timer set in the remote leakage test module 31 is started to count, and the signal converter 40 set on the three-phase low-voltage line detects its three-phase voltage signal, and after the shunt switch 5 of the three-phase low-voltage line is disconnected, the signal converter 40 sends the voltage-free detection result to the remote leakage test module 31, so that the remote leakage test module 31 obtains the leakage action time of the remote leakage test circuit according to the detection result, and sends the remote leakage test result including the three-phase voltage signal and the leakage action time to the remote leakage communication module 23.

[0063] In an embodiment of the present invention, the anti-violation cloud system 17 receives the remote leakage test result including the three-phase voltage signal and the leakage action time sent by the remote leakage test module 31 of the remote leakage test device 12 via the underground communication system 13, the ground communication system 15 and the remote leakage communication module 23; if the three-phase voltage signal changes from energized to de-energized, the three-phase low-voltage line remote leakage test is successful, and the leakage action time is compared with the pre-stored leakage action time threshold. If the leakage action time is greater than the leakage action time threshold, an alarm is triggered and the action time value is displayed. If the leakage action time is not greater than the leakage action time threshold, no alarm is triggered and the action time value is displayed. If the three-phase voltage signal does not change from energized to de-energized, the three-phase low-voltage line remote leakage test fails.

[0064] like Figure 1 and Figure 2 As shown, the 5G remote leakage flameproof housing 21 is designed and manufactured according to the GB3836 series standard, and the 5G remote leakage test module 31, the 5G remote leakage communication module 23, the grounding resistance detection module 25, and the remote leakage power supply 30 are installed inside, and connected together according to the design drawing to form a 5G intelligent remote leakage test device C12. The 660V three-phase low-voltage power supply line 1 is introduced into the 5G remote leakage flameproof housing 21 through the main feed switch 3 and the branch switch A5, and connected to the 5G remote leakage test module 31; the underground communication system 13 is connected to the 5G remote leakage flameproof housing 21 and connected to the 5G remote leakage communication module 23; the auxiliary grounding electrode 27 is introduced into the 5G remote leakage flameproof housing 21 through the grounding wire, and connected to the grounding resistance detection module 25, and the main grounding electrode is connected to the grounding electrode of the 5G remote leakage flameproof housing 21. The ground anti-violation cloud system 17 is connected to the ground information processing center 15, and communicates with the 5G remote leakage communication system 23 through the underground communication system 13. The mobile terminal APP19 is connected to the anti-violation cloud system 17.

[0065] The simple workflow of the present invention is: the ground anti-violation cloud system 17 issues a test command, which is transmitted to the ground information processing center 15, the underground communication system 13, the 5G remote leakage communication module 23, and the 5G remote leakage test module 31 in sequence to perform a remote leakage test. Figure 2 As shown, that is: the leakage test resistor RS43 is connected to the ground to generate leakage current. The leakage protection of the shunt switch 5 detects the leakage current and trips, and transmits the trip signal to the underground communication system 13, the ground information processing center 15 and the anti-violation cloud system 17 in sequence. The remote leakage test signal, leakage action time, power supply voltage and other parameters are sent to the anti-violation cloud system 17 via the above-mentioned transmission line, and are also transmitted to the mobile phone anti-violation terminal APP 19.

[0066] Similarly, the 5G intelligent remote leakage test device B11 performs a remote leakage test on the branch switch B7, and the 5G intelligent remote leakage test device A9 performs a remote leakage test on the main feed switch 3. The simple action process is the same as above.

[0067] It should be pointed out that before conducting the remote leakage test, if the auxiliary grounding electrode Fd45 is suspended and poorly grounded, the grounding resistance detection module sends a signal to the anti-violation cloud center 17, which, after processing, sends a prohibition test instruction to the 5G remote leakage test module 31 to lock and not allow the test to continue.

[0068] In an embodiment of the present invention, a 5G / 6G remote leakage test module, a 5G / 6G remote leakage communication module, a ground resistance detection module, and a remote leakage power supply are interconnected and installed in a 5G / 6G remote leakage explosion-proof enclosure, transmitted to the ground communication system through the underground communication system, and connected to the anti-violation cloud system and the mobile terminal APP. The remote leakage test module is connected to the branch switch A through a three-phase low-voltage line, or is connected to the high-voltage power supply equipment through an insulation monitoring line.

[0069] In the embodiment of the present invention, the anti-violation cloud system issues a command, which is transmitted to the underground 5G / 6G remote leakage communication module through the ground, and then transmitted to the 5G / 6G remote leakage remote leakage test module. After processing, the remote leakage test relay is driven to operate, and its normally open contact K11 is closed. When the normally closed contact K31 of the suspended locking relay is not disconnected, it is also closed. The test resistor R S The three-phase low-voltage power supply system 660V / 1140V / 127V line is subjected to a remote leakage test. At this time, the leakage protection relay K2 is activated, the normally closed contact of K21 is disconnected, the feeder switch contactor C is de-energized and tripped, and its contact C1 is disconnected. If this test is successful, otherwise the test is unsuccessful.

[0070] In the embodiment of the present invention, a 5G mobile phone can be purchased in the market, or a 6G mobile phone can be purchased after the 6G technology is popularized, or a 5G development board or DTU can be purchased, or a 6G development board or DTU that will be launched in the future can be purchased. An interface circuit board that can receive signals such as wifi, Bluetooth, or USB is purchased and connected to a single-chip microcomputer and a 5G remote leakage test relay 39 to assemble a 5G remote leakage test module 31, which is debugged to have a 5G, wifi, Bluetooth, or USB signal driving function. When conducting a remote leakage test, an instruction is issued from the anti-violation system 17, which is transmitted to the underground 5G remote leakage communication module 23 via the ground, and then to the 5G remote leakage test module 31. After processing, the remote leakage test relay 39 is driven to operate, and its normally open contact K11 41 is closed, and the test resistor Rs43 is connected to the three-phase line 55. If the normally closed contact K31 42 of the suspended locking relay is not disconnected at this time, the leakage protection relay of the branch switch 5 of the three-phase line 55 detects the signal, and the current flowing out of the leakage protection power supply 49 increases, and flows through the leakage protection relay K2 51, the leakage protection interface circuit 53, the three-phase line 55, and the closed contact C1 57 to K11 41, K31 42, the test resistor Rs 43, and the auxiliary grounding electrode Fd45, and enters the main grounding Zd47 through the earth, and returns to the negative electrode of the leakage protection power supply 49. The leakage protection relay K2 51 operates, its normally closed contact K21 is disconnected, the shunt switch is de-energized and tripped, its normally open contact C1 57 is disconnected, and the remote leakage test is successful, otherwise the test is unsuccessful.

[0071] The embodiment of the present invention also provides an intelligent underground remote leakage test method, including: an anti-violation cloud system 17 is set up for sending remote leakage test instructions and receiving remote leakage test results; a ground communication system 15 is set up on the ground, which is used to receive the remote leakage test instructions from the anti-violation cloud system 17 and send the remote leakage test results to the anti-violation cloud system 17; an underground communication system 13 is set up in the well, which is used to receive the remote leakage test instructions from the ground communication system 15 and send the remote leakage test results to the ground communication system 15; a remote leakage test device 12 is set up in the well, which is used to receive and perform leakage test according to the received remote leakage test instructions, and feed back the remote leakage test results to the anti-violation cloud system 17 via the underground communication system 13 and the ground communication system 15; the remote leakage test device 12 includes: a remote leakage communication module 23, a remote leakage test module 31 and a ground communication module 13. Resistance detection module 25; wherein, the remote leakage communication module 23 forwards the remote leakage test instruction sent by the downhole communication system 13 to the remote leakage test module 31; the remote leakage test module 31 connects the remote leakage test circuit including the branch switch 5 connected to the three-phase low-voltage line according to the remote leakage test instruction, and sends the remote leakage test result of the remote leakage test circuit including the leakage action time to the remote leakage communication module 23; or performs a leakage test on the end of the three-phase high-voltage line according to the remote leakage test instruction, and sends the leakage test result at the end of the three-phase high-voltage line to the remote leakage communication module 23; the grounding resistance detection module 25 detects the grounding resistance value according to the remote leakage test instruction, and sends the grounding resistance value result to the remote leakage communication module 23; wherein, the remote leakage test instruction includes a three-phase low-voltage line remote leakage test instruction or a three-phase high-voltage line remote leakage test instruction or a grounding resistance detection instruction.

[0072] Embodiment 2:

[0073] Figure 6 It is a schematic diagram of a 5G / 6G far leakage flameproof enclosure provided by the present invention, and the 5G / 6G far leakage flameproof enclosure comprises: a 5G / 6G far leakage test module, a grounding resistance detection module, a 5G / 6G far leakage communication module, a far leakage power supply are installed inside, and anti-violation technical products are installed on the isolating switch, the door cover, the spiral horn mouth, and the wiring cavity cover plate, an anti-violation cover opening sensor is installed on the protective cover, and emergency first aid supplies are installed in the protective cover; the anti-violation antenna of the 5G / 6G far leakage communication module passes through the far leakage flameproof enclosure partition through the communication line casing, is installed on the anti-violation cover opening sensor through the cable introduction device, and wirelessly communicates with the underground communication system; or antenna A and antenna B are installed in the far leakage enclosure, and wireless signals are transmitted to the outside of the 5G / 6G far leakage flameproof enclosure through the flameproof gap, the insulating sheath of the terminal, the cable sheath, and the enclosure observation window to communicate wirelessly with the underground communication system.

[0074] 5G / 6G remote leakage flameproof enclosure 21, such as Figure 5 As shown, an anti-violation door opening sensor 89 is installed on the door cover, and the principle and installation method are shown in the patent "Anti-violation protection device for explosion-proof housing door cover 201820793136.6", two anti-locks 85 are installed on the isolating switch, and the installation method is shown in the enterprise standard and industry standard "Two Anti-locks for Mine Switches", and an anti-loosening lock 97 is installed on the spiral trumpet mouth of the incoming and outgoing cables, and the principle and installation method are shown in the patent: A trumpet mouth anti-loosening device and anti-loosening method 201310057843.0, a protective cover 99 is installed on the wiring cavity cover 101, and the principle and installation method are shown in the patent: A cover protection device 201210147572.3 and a method and device for locking multiple bolts 200910075088.2, an anti-violation cover opening sensor 107 is installed on the protective cover, and the specific method is shown in the patent: A method and device for locking multiple bolts 200910075088.2, and emergency first aid supplies 105 are installed in the protective cover. The door cover 91 is provided with a housing observation window 96, and a cable introduction device 117 is installed on the housing.

[0075] The wiring chamber cover plate fastening bolts 103 fasten the cover plate 101, the door cover 91 is fastened with fastening bolts 95, the battery in the 5G remote leakage flameproof housing 21 is placed in the battery box 93, and each component is installed and connected according to the standard.

[0076] Embodiment 3:

[0077] Figure 3 5G / 6G remote leakage communication module provided by the present invention is shown in FIG. Figure 3 As shown, it includes: a signal conversion circuit module 191, such as 485, switch quantity, optical signal conversion to a 5G / 6G signal processing module that can receive USB, wifi, Bluetooth, etc.; a 5G / 6G signal processing module 192, such as 5GDTU, etc.; a 5G / 6G module remote control 193, such as: an explosion-proof mobile phone can be used as a remote control; an anti-violation antenna 195, installed outside the flameproof housing; an antenna A 197, installed inside the flameproof housing, transmitting 5G / 6G and other wireless signals through the flameproof housing observation window, etc.; an antenna B 199, installed in the flameproof casing, transmits 5G / 6G and other wireless signals through the flameproof gap; the anti-violation signal interface circuit 201, the electrical / non-electrical signal interface circuit 203, the ground resistance test signal interface circuit 205 and the remote leakage detection signal interface circuit 207 output signals and transmit them to the signal conversion circuit module 191, which are converted and transmitted to the 5G / 6G signal processing module 192, and are processed and transmitted to the underground communication system through the anti-violation antenna 195, or the built-in antenna A or antenna B through the observation window and the flameproof casing gap. The 5G / 6G signal processing module is connected to the remote control at the same time to receive the remote control signal; wherein, the remote leakage 5G / 6G communication module is a 5G / 6G mobile phone.

[0078] In an embodiment of the present invention, the remote leakage communication module 23 includes: a signal conversion circuit module 191, whose input end is connected to multiple interface circuits and whose output end is connected to a signal processing module 192; a remote controller 193 connected to the input end of the signal processing module 192, used to send a remote control signal to the signal processing module 192; multiple antennas connected to the output end of the signal processing module 192, used to send wireless signals to the downhole communication system 13; wherein the multiple interface circuits include: an anti-violation signal interface circuit 205, an electrical / non-electrical signal interface circuit 203, a ground resistance test signal interface circuit 205, and a remote leakage detection signal interface circuit 207; wherein the multiple antennas include: an anti-violation antenna 195 installed outside the flameproof enclosure; an antenna A197 installed inside the flameproof enclosure and transmitting wireless signals through the observation window of the flameproof enclosure; and an antenna B 199 installed inside the flameproof enclosure and transmitting wireless signals through the gap of the flameproof enclosure.

[0079] In an embodiment of the present invention, a 5G mobile phone motherboard, or a 5GDTV, or an old 5G mobile phone, or a future 6G mobile phone motherboard or 6GDTV can be purchased to make a 5G / 6G signal processing module 192; a circuit board that can convert 485, switch quantities, optical signals and other signals into USB, wifi, Bluetooth and other signals that can be received by the 5G / 6G signal processing module 192 can be purchased, and the circuit boards can be connected together as required to make a signal conversion circuit module 191. The switch quantity output of the cover opening sensor, electric interlock and other components is input into the anti-violation signal interface circuit 201, and the non-electrical signals such as temperature and sound input with 485 voltage signal and analog signal are respectively connected to the signal conversion circuit template 191 through the electric / non-electrical signal interface circuit 203, the ground resistance detection signal through the interface circuit 205, and the remote leakage test signal through the interface circuit 207. The signal conversion circuit template 191 is connected to the 5G / 6G signal processing module 192, which can be connected to the 5G / 6G module remote controller 193 for operation. The controller 193 can be replaced by an explosion-proof mobile phone underground. The 5G / 6G signal processing module outputs multiple antennas, such as Figure 6 As shown, a 5G / 6G antenna A197 installed inside the 5G remote leakage flameproof housing 21 transmits signals to the observation window 96; and an antenna B199 transmits signals to the flameproof gap.

[0080] The main working process is as follows: Figure 6 The anti-violation cover opening sensor 107 is opened, and its action signal is transmitted to Figure 3 The anti-violation signal interface circuit 201 converts the switch quantity into a USB signal through the signal conversion circuit module 191, transmits it to the signal processing module 192, and transmits it to the underground communication system 13 through the remote leakage antenna 195, or antenna A197 or antenna B199, and then transmits it to the Figure 1The anti-violation cloud system 17 shown on the ground forms a power-off instruction after processing, which is transmitted to the underground communication center 13 through the ground information processing center 15, and then to the branch switch 5, instructing the branch switch to power off, thereby realizing power off before opening the cover and locking after opening the cover.

[0081] Embodiment 4:

[0082] like Figure 4 As shown, the grounding resistance detection module 25 detects the small grounding resistance Rx251 according to the grounding resistance detection instruction to obtain the grounding resistance value data of the small grounding resistance Rx251; the grounding resistance detection module 25 consists of three measuring electrodes N, P, and Q, wherein the N electrode lead is connected to the test resistor R S 43 and the small grounding resistor Rx 251, and is connected to the grounding grid via the small grounding resistor Rx 251, a measuring grounding electrode Pd252 is driven in 5 meters away from the grounding grid, and a measuring grounding electrode Qd 253 is driven in 5 meters away from the grounding electrode Pd 252, so that the P electrode lead is connected to the grounding electrode Pd 252, and the Q electrode lead is connected to the grounding electrode Qd 253.

[0083] like Figure 5 As shown, the grounding resistance detection module 25 detects the large grounding resistance Rd259 according to the grounding resistance detection instruction to obtain the grounding resistance value data of the large grounding resistance Rd259; the grounding resistance detection module 25 consists of three measuring electrodes N, P, and Q, wherein the N electrode lead is connected to the test resistor R S 43 and a large grounding resistor Rd 259, and is connected to a grounding grid 450 via the large grounding resistor Rd 259. The P electrode and the Q electrode are connected in parallel and connected to the grounding electrode of the equipment casing.

[0084] like Figure 4 and Figure 5 As shown, the anti-violation cloud system 17 receives the grounding resistance value data of the small grounding resistor Rx 251 or the grounding resistance value data of the large grounding resistor Rd 259 sent by the grounding resistance detection module 25 of the remote leakage test device 12 via the underground communication system 13, the ground communication system 15 and the remote leakage communication module 23, and when the grounding resistance value data of the small grounding resistor Rx251 exceeds the specified small grounding resistance value or when the grounding resistance value data of the large grounding resistor Rd 259 exceeds the specified large grounding resistance value, an instruction is sent to the remote leakage test device 12 to drive the grounding electrode hanging locking relay K3 250 to operate, and its normally closed contact K31 42 is disconnected, and the locking test is continued.

[0085] Among them, the grounding resistance detection module includes: a communication module of a grounding digital resistance meter and three measuring electrodes N, P, and Q. In the embodiment of the present invention, many methods can be applied to make the grounding resistance detection module 25. The present invention is made by purchasing a grounding digital resistance test module 257. The grounding resistance digital measurement module includes measuring electrodes N, P, and Q; when measuring a small resistance such as less than 1000 ohms, it is connected to the remote leakage communication module 23, and its three measuring electrodes are N, P, and Q. The small grounding resistance 251 is measured. The small grounding resistance refers to a grounding resistance less than or equal to 20 ohms, such as the grounding plate and grounding wire buried in the water tank of the underground substation. The "Coal Mine Safety Regulations" require that the total grounding resistance does not exceed 2 ohms, so when accurate measurement is required, the N electrode lead is connected to the test resistance R S 43 is connected to the grounding grid between the small grounding resistor 251, a measuring grounding electrode Pd is driven in 5 meters away from the connection point, and a measuring grounding electrode Qd is driven in 5 meters away from Pd.

[0086] Measuring large grounding resistance 259, such as a single local grounding electrode and a grounding plate without networking, the "Coal Mine Safety Regulations" stipulates its specific value, so inaccurate measurement can also meet the work requirements. For example, when it is above 1000 ohms, the N electrode lead is connected to the test resistor R S 43 is connected to the ground 450 between the large grounding resistor 259, and the P and Q electrodes are connected together and connected to the grounding electrode of the equipment casing, namely the main grounding electrode Fd.

[0087] Whether measuring small resistance or large resistance, the measured ground resistance value data is transmitted to the communication module 23, and then transmitted to the ground anti-violation cloud system 17. When the ground resistance value exceeds the specified value, the anti-violation cloud system 17 issues a command to activate the K3 relay, and its normally closed contact K31 42 is disconnected, and the lock is continuously tested. At the same time, its normally open contact K32 is closed, the measurement circuit is connected, and the ground resistance value can be measured. When the measured ground resistance exceeds the specified value, an alarm is issued or the lock cannot be performed for the remote leakage test.

[0088] Embodiment 5:

[0089] Figure 7 The schematic diagram of the high voltage insulation monitoring test principle provided by the present invention is as follows: Figure 7 As shown, during the high-voltage insulation monitoring test, the remote leakage test module is connected to the high-voltage power supply equipment through the insulation monitoring line, and the anti-violation cloud issues a command, which drives the high-voltage test relay K4 to operate through the remote leakage communication module and the remote leakage test module. Its K41 normally open contact is closed, and the terminal element is connected. The high-voltage equipment insulation monitoring relay K6 is activated, and the normally closed contact K61 is disconnected. The 3.3~10KV high-voltage circuit breaker C2 trips and cuts off the power. At the same time, the normally open contact K62 is activated, and the insulation monitoring test report relay K7 is activated, which can report to the anti-violation cloud through the remote leakage test module. Specifically, Figure 1 In the 5G / 6G remote leakage flameproof enclosure 21, high voltage test relay K4 61, terminal element 62, and report relay K7 64 are installed, and the 3.3~10KV insulation monitoring line 33 is introduced into the flameproof enclosure 21, and each component is connected according to the attached Figure 7 Schematic diagram of the connection.

[0090] The working process is: the anti-violation cloud 17 sends a high-voltage insulation test instruction, which is replaced by a 5G / 6G mobile phone through the remote leakage communication module 23 and the remote leakage test module 31, driving the high-voltage test relay K4 61 to operate, and its normally open contact K41 is closed, and the terminal element 62 is connected. The monitoring power supply 66 of the high-voltage insulation monitoring line 33, that is, the power supply added to the monitoring line by the high-voltage equipment, is connected, and the high-voltage equipment insulation monitoring relay K6 67 is operated, and its normally closed contact K61 is disconnected, and the high-voltage circuit breaker C2 63 is powered off, and its contact C21 cuts off the 3.3~10KV power line 65, or the normally open contact K62 is operated, and the high-voltage insulation monitoring test report relay K7 64 is operated, and its contact is closed to send a signal, and reports to the anti-violation cloud 17 through the remote leakage test module 31.

[0091] In the embodiment of the present invention, the remote leakage test module 31 performs a leakage test on the end of the three-phase high-voltage power line according to the remote leakage test instruction, including: the remote leakage test module 31 drives the high-voltage test relay K4 61 connected to the remote leakage test module 31 to operate according to the remote leakage test instruction of the three-phase high-voltage power line, and its normally open contact K41 is closed, the terminal element 62 is connected, and the monitoring power supply 66 of the high-voltage insulation monitoring line 33 is connected, and then the high-voltage equipment insulation monitoring relay K6 67 connected to the monitoring power supply 66 is driven to operate, and its normally closed contact K61 is opened, so that the high-voltage circuit breaker C2 63 of the three-phase high-voltage switch 35 connected to the three-phase high-voltage power line 65 is powered off, thereby cutting off the three-phase high-voltage power line 65; or the normally open contact K62 of the high-voltage equipment insulation monitoring relay K6 67 is closed, and the high-voltage insulation monitoring test report relay K7 64 is driven to operate, and the action signal after the normally open contact is closed is sent to the remote leakage test module 31 as a leakage test result containing the end of the three-phase high-voltage line.

[0092] Embodiment 6:

[0093] In an embodiment of the present invention, the anti-violation antenna 195 is connected to the remote leakage communication module 23 arranged in the remote leakage flameproof enclosure 21 through a communication line via a communication line sleeve 118 fixed on the flameproof enclosure partition 115 and a cable introduction device 117 fixed on the remote leakage flameproof enclosure 21; wherein, the anti-violation antenna 195 is arranged inside the anti-violation cover opening sensor 107 or the anti-violation technology product protective cover 99; the communication line is an optical cable or a coaxial cable.

[0094] The production process of the anti-violation antenna 195 is as follows: a 5G communication patch antenna with an input impedance of 50 ohms is purchased as the anti-violation antenna, and a communication line that matches the output impedance of the 5G / 6G communication module passes through the communication line sleeve and is attached to the anti-violation cover opening sensor 107, or the antenna is installed in the anti-violation technology product protective cover 99. The anti-violation antenna 195 is connected to the 50 ohm communication line, and passes through the communication line sleeve 118 through the cable introduction device 117, and then connected to the 5G remote leakage communication module 23. The 5G remote leakage communication module 23 is debugged to achieve impedance matching. The communication line can be an optical cable or a coaxial cable. The communication line sleeve 118 is cast in place, and one or more communication lines are passed in the middle. The communication line sleeve 118 is fixed on the explosion-proof housing partition 115 according to explosion-proof requirements.

[0095] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the present invention is not limited thereby. Any modification, equivalent substitution and improvement made by those skilled in the art without departing from the scope and essence of the present invention shall be within the scope of the present invention.

Claims

1. An intelligent downhole remote leakage test system, characterized in that: include: An anti-violation cloud system (17) for sending remote leakage test instructions and receiving remote leakage test results; A ground communication system (15) is used to receive a remote leakage test instruction from the anti-violation cloud system (17) and send a remote leakage test result to the anti-violation cloud system (17); An underground communication system (13) for receiving a remote leakage test instruction from the surface communication system (15) and sending a remote leakage test result to the surface communication system (15); A remote leakage test device (12) is used to receive and perform a leakage test according to the received remote leakage test instruction, and feed back the remote leakage test result to the anti-violation cloud system (17) via the underground communication system (13) and the ground communication system (15); The remote leakage test device (12) comprises: a remote leakage communication module (23), a remote leakage test module (31) and a ground resistance detection module (25); Wherein, the remote leakage communication module (23) forwards the remote leakage test instruction sent by the downhole communication system (13) to the remote leakage test module (31); The remote leakage test module (31) connects the remote leakage test circuit including the shunt switch (5) connected to the three-phase low-voltage line according to the remote leakage test instruction, and sends the remote leakage test result including the leakage action time of the remote leakage test circuit to the remote leakage communication module (23); or performs a leakage test on the end of the three-phase high-voltage power line according to the remote leakage test instruction, and sends the leakage test result of the end of the three-phase high-voltage line to the remote leakage communication module (23); The grounding resistance detection module (25) detects the grounding resistance value according to the remote leakage test instruction, and sends the grounding resistance value result to the remote leakage communication module (23); The remote leakage test instruction includes a three-phase low-voltage line remote leakage test instruction or a three-phase high-voltage power line remote leakage test instruction or a ground resistance detection instruction.

2. The system according to claim 1, characterized in that The remote leakage test module (31) drives the remote leakage test relay K1 (39) connected to the remote leakage test module (31) to operate according to the remote leakage test instruction of the three-phase low-voltage line, and its normally open contact K11 (41) is closed, so as to connect the remote leakage test circuit including the shunt switch (5) and the leakage test resistor RS (43) connected to the three-phase low-voltage line, so that the leakage test resistor RS (43) is connected to the ground to generate leakage current, and at the same time, the timer set in the remote leakage test module (31) is started to count, and the signal converter (40) set on the three-phase low-voltage line detects its three-phase voltage signal, and after the shunt switch (5) of the three-phase low-voltage line is disconnected, the signal converter (40) sends the detection result of no voltage to the remote leakage test module (31), so that the remote leakage test module (31) obtains the leakage action time of the remote leakage test circuit according to the detection result, and sends the remote leakage test result including the three-phase voltage signal and the leakage action time to the remote leakage communication module (23).

3. The system according to claim 2, characterized in that The anti-violation cloud system (17) receives the remote leakage test result including the three-phase voltage signal and the leakage action time sent by the remote leakage test module (31) of the remote leakage test device (12) via the underground communication system (13), the ground communication system (15) and the remote leakage communication module (23); Among them, if the three-phase voltage signal changes from energized to de-energized, the three-phase low-voltage line remote leakage test is successful, and the leakage action time is compared with the pre-stored leakage action time threshold. If the leakage action time is greater than the leakage action time threshold, an alarm is triggered and the action time value is displayed. If the leakage action time is not greater than the leakage action time threshold, no alarm is triggered and the action time value is displayed. If the three-phase voltage signal does not change from energized to de-energized, the three-phase low-voltage line remote leakage test fails.

4. The system according to claim 1, characterized in that The remote leakage test module (31) performs a leakage test on the end of the three-phase high-voltage power line according to the remote leakage test instruction, including: The remote leakage test module (31) drives the high-voltage test relay K4 (61) connected to the remote leakage test module (31) to operate according to the remote leakage test instruction of the three-phase high-voltage power line, and its normally open contact K41 is closed, the terminal element (62) is connected, and the monitoring power supply (66) of the high-voltage insulation monitoring line (33) is connected, and then the high-voltage equipment insulation monitoring relay K6 (67) connected to the monitoring power supply (66) is driven to operate, and its normally closed contact K61 is opened, so that the high-voltage circuit breaker C2 (63) of the three-phase high-voltage switch (35) connected to the three-phase high-voltage power line (65) is powered off, thereby cutting off the three-phase high-voltage power line (65); or the normally open contact K62 of the high-voltage equipment insulation monitoring relay K6 (67) is closed, driving the high-voltage insulation monitoring test report relay K7 (64) to operate, and the action signal after the normally open contact is closed is sent to the remote leakage test module (31) as a leakage test result containing the end of the three-phase high-voltage line.

5. The system according to claim 1, characterized in that The grounding resistance detection module (25) detects the grounding resistance value according to the remote leakage test instruction, including: The grounding resistance detection module (25) detects the small grounding resistance Rx (251) according to the grounding resistance detection instruction to obtain grounding resistance value data of the small grounding resistance Rx (251); The ground resistance detection module (25) comprises three measuring electrodes N, P and Q, wherein the N electrode lead is connected to the test resistor R S (43) and a small grounding resistor Rx (251), and connected to a grounding grid via the small grounding resistor Rx (251), a measuring grounding electrode Pd (252) is driven in 5 meters away from the grounding grid, and a measuring grounding electrode Qd (253) is driven in 5 meters away from the grounding electrode Pd (252), so that the P electrode lead is connected to the grounding electrode Pd (252), and the Q electrode lead is connected to the grounding electrode Qd (253).

6. The system according to claim 5, characterized in that The grounding resistance detection module (25) detects the grounding resistance value according to the remote leakage test instruction and further comprises: The grounding resistance detection module (25) detects the large grounding resistance Rd (259) according to the grounding resistance detection instruction to obtain grounding resistance value data of the large grounding resistance Rd (259); The ground resistance detection module (25) comprises three measuring electrodes N, P and Q, wherein the N electrode lead is connected to the test resistor R S (43) and a large grounding resistor Rd (259), and connected to a grounding grid (450) via the large grounding resistor Rd (259), the P electrode and the Q electrode are connected in parallel and connected to the grounding electrode of the equipment casing.

7. The system according to claim 6, characterized in that The anti-violation cloud system (17) receives the grounding resistance value data of the small grounding resistor Rx (251) or the grounding resistance value data of the large grounding resistor Rd (259) sent by the grounding resistance detection module (25) of the remote leakage test device (12) via the underground communication system (13), the ground communication system (15) and the remote leakage communication module (23), and when the grounding resistance value data of the small grounding resistor Rx (251) exceeds the specified small grounding resistance value or when the grounding resistance value data of the large grounding resistor Rd (259) exceeds the specified large grounding resistance value, sends a command to the remote leakage test device (12) to drive the grounding electrode suspension locking relay K3 (250) to operate, and its normally closed contact K31 (42) is opened, and the locking test is continued.

8. The system according to claim 1, characterized in that The remote leakage communication module (23) comprises: A signal conversion circuit module (191), whose input end is connected to a plurality of interface circuits and whose output end is connected to a signal processing module (192); A remote controller (193) connected to an input end of the signal processing module (192), used for sending a remote control signal to the signal processing module (192); A plurality of antennas connected to the output end of the signal processing module (192), used for sending wireless signals to the downhole communication system (13); The plurality of interface circuits include: an anti-violation signal interface circuit (205), an electrical / non-electrical signal interface circuit (203), a ground resistance test signal interface circuit (205), and a remote leakage detection signal interface circuit (207); Wherein, the multiple antennas include: an anti-violation antenna (195) mounted outside the flameproof enclosure; An antenna A (197) installed inside the flameproof enclosure and transmitting a wireless signal through an observation window of the flameproof enclosure; An antenna B (199) is installed inside the flameproof enclosure and transmits wireless signals through the gap of the flameproof enclosure.

9. The system according to claim 8, characterized in that The anti-violation antenna (195) is connected to the remote leakage communication module (23) disposed in the remote leakage flameproof housing (21) via a communication line through a communication line sleeve (118) fixed on the flameproof housing partition (115) and a cable lead-in device (117) fixed on the remote leakage flameproof housing (21); Wherein, the anti-violation antenna (195) is arranged inside the anti-violation cover opening sensor (107) or the anti-violation technology product protective cover (99); The communication line is an optical cable or a coaxial cable.

10. An intelligent downhole remote leakage test method, comprising: An anti-violation cloud system (17) is provided for sending remote leakage test instructions and receiving remote leakage test results; A ground communication system (15) disposed on the ground, used for receiving a remote leakage test instruction from the anti-violation cloud system (17) and sending a remote leakage test result to the anti-violation cloud system (17); A downhole communication system (13) disposed downhole, used for receiving a remote leakage test instruction from the ground communication system (15) and sending a remote leakage test result to the ground communication system (15); A remote leakage test device (12) arranged underground is used to receive and perform a leakage test according to the received remote leakage test instruction, and feed back the remote leakage test result to the anti-violation cloud system (17) via the underground communication system (13) and the ground communication system (15); The remote leakage test device (12) comprises: a remote leakage communication module (23), a remote leakage test module (31) and a ground resistance detection module (25); Wherein, the remote leakage communication module (23) forwards the remote leakage test instruction sent by the downhole communication system (13) to the remote leakage test module (31); The remote leakage test module (31) connects the remote leakage test circuit including the shunt switch (5) connected to the three-phase low-voltage line according to the remote leakage test instruction, and sends the remote leakage test result including the leakage action time of the remote leakage test circuit to the remote leakage communication module (23); or performs a leakage test on the end of the three-phase high-voltage line according to the remote leakage test instruction, and sends the leakage test result of the end of the three-phase high-voltage line to the remote leakage communication module (23); The grounding resistance detection module (25) detects the grounding resistance value according to the remote leakage test instruction, and sends the grounding resistance value result to the remote leakage communication module (23); The remote leakage test instruction includes a three-phase low-voltage line remote leakage test instruction or a three-phase high-voltage line remote leakage test instruction or a ground resistance detection instruction.

Images