Power frequency withstand voltage tester for 0.4 kV insulating rod

Abstract

The invention discloses a 0.4 kV insulating rod power frequency withstand voltage tester, which belongs to the technical field of insulating rod testing and comprises a control mechanism and a testing mechanism. After a tester places the 0.4 kV insulating rod on the grounding clamping jaw and the high-voltage clamping jaw, closing of the automatic turnover door, clamping of the 0.4 kV insulating rod, boosting testing, temperature monitoring, result uploading and follow-up processing work are all automatically carried out, manual participation steps are few, the burden of operators is relieved, and the test efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of insulating rod testing, and in particular relates to a 0.4kV insulating rod power frequency withstand voltage tester. Background Art

[0002] The 0.4kV insulating rod is an insulating tool specially used in power systems, mainly used for operation, inspection and maintenance of equipment with a voltage level of 0.4kV (i.e. 400 volts).

[0003] The 0.4kV insulating rod power frequency withstand voltage test is to verify the withstand voltage capability of the 0.4kV insulating rod under the electrical field strength. Through the test, it can be ensured that the electrical performance of the 0.4kV insulating rod meets the design requirements to ensure its reliability in use.

[0004] At present, the power frequency withstand voltage test method for 0.4kV insulating rods is generally that the test personnel enter the high-voltage test area to ground the test transformer grounding rod, and then ground one end of the 0.4kV insulating rod wrapped with tin foil, conductive cloth or wire at both ends and connect the other end to the high-voltage end of the test transformer, then withdraw from the high-voltage test area, close the switch to the voltage regulating cabinet, and then click on the operating table to start the boost test. After the test is completed, the test personnel enter the high-voltage test area, first ground the test transformer grounding rod, and then remove the 0.4kV insulating rods one by one, observe and touch the surface of the 0.4kV insulating rod to see if it is hot to determine whether it is qualified, and then return to the operating table to confirm whether each line is qualified and upload the test results. The entire test process is cumbersome and inefficient.

[0005] In view of this, a 0.4kV insulating rod power frequency withstand voltage tester is designed to solve the above problems. Summary of the invention

[0006] In order to solve the problems raised in the above background technology, the present invention provides a 0.4kV insulation rod power frequency withstand voltage tester, which has the characteristics of less human involvement steps, reducing the burden on operators and improving test efficiency.

[0007] To achieve the above object, the present invention provides the following technical solution: a 0.4kV insulating rod power frequency withstand voltage tester, comprising: a control mechanism and a testing mechanism, wherein:

[0008] The controlling bodies include:

[0009] The control cabin is set on the ground, and the four corners of the bottom are respectively fixed with support feet;

[0010] RFID reader, fixed on the top of the control cabin;

[0011] High-voltage transformer, fixed inside the control cabin;

[0012] Automatic voltage regulator, fixed inside the control cabin below the high voltage transformer;

[0013] The contactor is fixed inside the control cabin and is located below the automatic voltage regulator;

[0014] The main control board is fixed inside the control cabin and located on one side of the high-voltage transformer;

[0015] The power switch is fixed to the operating side wall of the control cabin;

[0016] The knife switch is fixed to the operating side wall of the control cabin and is located on the side of the power switch;

[0017] The emergency stop switch is fixed to the operating side wall of the control cabin and is located on the other side of the power switch;

[0018] The touch terminal is fixed to the operating side wall of the control cabin and is located below the power switch, knife switch and emergency stop switch;

[0019] The indicator light is fixed to the operating side wall of the control cabin and is located below the touch terminal;

[0020] Testing agencies include:

[0021] The test cabin is set on the ground, with support feet fixed to the four corners of the bottom respectively, and is fixed to the control cabin near the side wall of the control cabin;

[0022] A partition is fixedly connected to the inside of the test chamber to divide the inside of the test chamber into a test chamber and a drive chamber;

[0023] A grounding clamp assembly is assembled on the partition close to the side wall of the test chamber;

[0024] A high voltage clamp assembly is mounted on the partition close to the side wall of the test chamber and below the ground clamp;

[0025] The temperature measuring component is assembled on the partition close to the side wall of the driving cavity;

[0026] Automatic flip door, rotating and connected to the opening and closing side wall of the test cabin away from the control cabin side;

[0027] The RFID reader / writer, the emergency stop switch, the touch terminal, the indicator light, the power switch, the knife switch, the high-voltage transformer, the automatic voltage regulator, the contactor, the grounding clamp assembly, the high-voltage clamp assembly, the temperature measuring assembly and the automatic flip door are electrically connected to the main control board.

[0028] Furthermore, the grounding clamp assembly includes:

[0029] A grounding installation crossbeam is arranged on the side wall of the partition close to the test cavity;

[0030] There are several grounding clamps, which are fixed to the grounding installation beam at equal intervals;

[0031] A plurality of micro switches are provided, each of which is fixedly connected to a plurality of grounding claws;

[0032] The grounding claw and the micro switch are electrically connected to the main control board.

[0033] Furthermore, the high-pressure clamping jaw assembly comprises:

[0034] There are several insulating pillars, the number of which is the same as the number of grounding claws, which are fixed to the partitions at equal intervals and close to the partitions and close to the side walls of the test cavity, and are located below the grounding claws and correspond to the positions of the grounding claws one by one;

[0035] The high voltage installation beam is fixedly connected to a number of insulating pillars away from the side wall of the partition;

[0036] The power contact is fixedly connected to the side wall of the high voltage installation beam close to several insulating pillars;

[0037] A plurality of high-voltage clamps are provided, which are fixedly connected to the side walls of the high-voltage installation beam away from the plurality of insulating pillars at equal intervals, and correspond to the positions of the grounding clamps one by one;

[0038] The electric push rod is fixedly connected to the side wall of the partition close to the driving cavity;

[0039] A power supply pillar, the output end of the electric push rod passes through the partition and extends into the test cavity, and the power supply pillar is fixedly connected to the output end of the electric push rod extending into the test cavity;

[0040] The high-voltage clamping jaws and the electric push rod are electrically connected to the main control board.

[0041] Furthermore, the temperature measurement component includes:

[0042] A fixed crossbeam is fixedly connected to the side wall of the partition close to the driving cavity and is located above the electric push rod;

[0043] There are several temperature measuring probes, the number of which is the same as the number of high-voltage clamps, which are fixed to the fixed beam at equal intervals. The partition is provided with perforations corresponding to the positions of the temperature measuring probes, and the several temperature measuring probes extend into the test cavity through the perforations at the corresponding positions;

[0044] The temperature measuring probe is electrically connected to the main control board.

[0045] Furthermore, a first limit switch is fixedly connected to the test cabin on the side close to the automatic flip door and away from the installation side, and is electrically connected to the main control board.

[0046] Furthermore, it also includes a lifting mechanism, which is assembled between the partition and the ground mounting beam, including:

[0047] The motor is fixedly connected to the partition plate near the side wall of the driving cavity;

[0048] There are two mounting blocks, which are fixedly connected to the partition plate near the side wall of the driving cavity and are located below the motor;

[0049] The ball screw is arranged between the two mounting blocks, the top end of which passes through the upper mounting block and extends upward to be connected to the output end of the motor through a coupling, and the top end and the bottom end are respectively connected to the through section of the upper mounting block and the lower mounting block through bearings;

[0050] The horizontal beam is connected to the ball screw through the transmission nut;

[0051] The second limit switch is provided with two, fixedly connected to the partition plate from top to bottom, and located on the sides of the two mounting blocks close to each other;

[0052] There are two sliders, which are symmetrically fixed to the translation beam near the side wall of the partition;

[0053] There are two guide rails, which are symmetrically fixed to the partition plate near the side wall of the driving cavity and correspond to the positions of the two sliders one by one. The two sliders are slidably connected to the two guide rails;

[0054] Two connecting blocks are provided, which are symmetrically fixed to the side wall of the translation beam close to the partition plate and are located on the side where the two sliders are away from each other;

[0055] There are two translation ports, which are symmetrically opened on the partition and correspond to the positions of the two connection blocks one by one. The two connection blocks extend through the translation ports at the corresponding positions away from the translation beam into the test cavity and are fixedly connected to the grounding installation beam;

[0056] The motor and the second limit switch are electrically connected to the main control board.

[0057] Compared with the prior art, the present invention has the following beneficial effects:

[0058] After the test personnel place the 0.4kV insulating rod on the grounding clamp and the high-voltage clamp, the closing of the automatic flip door, the clamping of the 0.4kV insulating rod, the voltage boost test, the temperature monitoring, the result uploading and the subsequent processing are all automatically performed, with less steps of human participation, reducing the burden on the operator and improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 A top view of the present invention;

[0060] Figure 2 It is a front view of the present invention;

[0061] Figure 3 For the present invention Figure 2 Section view in the AA direction;

[0062] Figure 4 For the present invention Figure 2 Cross-sectional view in the middle BB direction;

[0063] Figure 5 For the present invention Figure 2 Cross-sectional view in CC direction;

[0064] Figure 6 For the present invention Figure 2 Cross-sectional view in the middle DD direction;

[0065] In the figure: 101, control cabin; 102, RFID reader; 103, emergency stop switch; 104, touch terminal; 105, indicator light; 106, power switch; 107, knife switch; 108, high-voltage transformer; 109, automatic voltage regulator; 110, contactor; 111, main control board;

[0066] 201. Test chamber; 202. Automatic flip door; 203. First limit switch; 204. Partition; 205. Test chamber; 206. Grounding clamp; 207. High-voltage clamp; 208. Micro switch; 209. Grounding mounting beam; 210. Connecting block; 211. Guide rail; 212. Motor; 213. Ball screw; 214. Translation beam; 215. Slider; 216. Drive chamber; 217. High-voltage mounting beam; 218. Power support; 219. Power contact; 220. Temperature probe; 221. Fixed beam; 222. Electric push rod; 223. Insulating support; 224. Mounting block; 225. Translation port; 226. Second limit switch. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] A 0.4kV insulating rod power frequency withstand voltage tester, comprising: a control mechanism and a test mechanism, wherein:

[0069] The controlling bodies include:

[0070] The control cabin 101 is arranged on the ground, and support feet are fixedly connected to the four corners of the bottom;

[0071] RFID reader 102, fixedly connected to the top of the control cabin 101;

[0072] A high voltage transformer 108 is fixedly connected inside the control cabin 101;

[0073] The automatic voltage regulator 109 is fixedly connected inside the control cabin 101 and located below the high-voltage transformer 108;

[0074] The contactor 110 is fixedly connected inside the control cabin 101 and is located below the automatic voltage regulator 109;

[0075] The main control board 111 is fixedly connected inside the control cabin 101 and located on one side of the high-voltage transformer 108;

[0076] A power switch 106 is fixedly connected to the operating side wall of the control cabin 101;

[0077] The knife switch 107 is fixedly connected to the operating side wall of the control cabin 101 and is located on the side of the power switch 106;

[0078] The emergency stop switch 103 is fixed to the operating side wall of the control cabin 101 and is located on the other side of the power switch 106;

[0079] The touch terminal 104 is fixed to the operating side wall of the control cabin 101 and is located below the power switch 106, the knife switch 107 and the emergency stop switch 103;

[0080] The indicator light 105 is fixed to the operating side wall of the control cabin 101 and is located below the touch terminal 104;

[0081] Testing agencies include:

[0082] The test cabin 201 is set on the ground, with support feet fixed to the four corners of the bottom, and is fixed to the control cabin 101 near the side wall of the control cabin 101;

[0083] The partition 204 is fixedly connected to the inside of the test chamber 201, dividing the inside of the test chamber 201 into a test chamber 205 and a drive chamber 216;

[0084] A grounding clamp assembly is mounted on the partition 204 near the side wall of the test cavity 205;

[0085] A high voltage clamp assembly is mounted on the partition 204 close to the side wall of the test cavity 205 and below the ground clamp 206;

[0086] The temperature measuring assembly is mounted on the side wall of the partition 204 close to the driving cavity 216;

[0087] An automatic flip door 202 is rotatably connected to the opening and closing side wall of the test cabin 201 away from the control cabin 101;

[0088] The RFID reader / writer 102 , the emergency stop switch 103 , the touch terminal 104 , the indicator light 105 , the power switch 106 , the knife switch 107 , the high-voltage transformer 108 , the automatic voltage regulator 109 , the contactor 110 , the grounding clamp assembly, the high-voltage clamp assembly, the temperature measurement assembly and the automatic flip door 202 are electrically connected to the main control board 111 .

[0089] In this embodiment, see the attached Figure 1 ,2 and 6. When the power frequency withstand voltage tester is used, the door opening command is input through the touch terminal 104, the main control board 111 automatically opens the automatic flip door 202, the tester takes the insulating rod and places it on the front of the RFID reader 102, the RFID reader 102 identifies the information of the RFID tag of the insulating rod, takes the insulating rod and places it on the grounding clamp assembly and the high-voltage clamp assembly, the grounding clamp assembly automatically detects that the insulating rod is in place, the main control board 111 binds the information of the insulating rod to the current position, repeats the insulating rod information identification and placement steps, and places other insulating rods in place in turn. When it is detected that all grounding clamp assemblies have placed insulating rods, the main control board 111 controls the automatic flip door 202 to close automatically, the main control board 111 controls all grounding clamp assemblies and high-voltage clamp assemblies to automatically wrap and clamp the insulating rods 360 degrees, the touch terminal 104 prompts the tester to close the switch, the tester and the upper knife switch 107, and the main control board 111 detects the closing signal of the knife switch 107 After that, the contactor 110 is controlled to close, the automatic voltage regulator 109 is controlled to increase the voltage slowly, and the voltage and current on the input and output sides of the automatic voltage regulator 109 and the high-voltage transformer 108 are detected at the same time, until the high voltage of the high-voltage transformer 108 reaches the standard test voltage value, and the timing starts. While the voltage is increased, the temperature measuring component automatically monitors the temperature rise of the insulating rod and feeds back to the main control board 111 in real time. After the timing ends, the main control board 111 automatically determines the test result according to the temperature rise of the insulating rod, and automatically uploads the test result to the background. At the same time, the main control board 111 controls the automatic voltage regulator 109 to quickly reduce the voltage until the automatic voltage regulator 109 drops to zero, controls the contactor 110 to open, and the touch terminal 104 prompts the tester to open the switch. The tester opens the knife switch 107. After the main control board 111 detects the opening signal of the knife switch 107, it controls all the grounding clamp assemblies and the high-voltage clamp assemblies to open automatically, controls the automatic flip door 202 to open automatically, and the tester takes away the insulating rod, and the test ends.

[0090] Specifically, the grounding clamp assembly includes:

[0091] A grounding installation beam 209 is disposed on the side wall of the partition 204 close to the test cavity 205;

[0092] There are several grounding clamps 206, which are fixed to the grounding mounting beam 209 at equal intervals;

[0093] There are several micro switches 208, which are respectively fixed to several grounding claws 206;

[0094] The grounding claw 206 and the micro switch 208 are electrically connected to the main control board 111 .

[0095] In this embodiment, see the attached Figure 3, the grounding clamp assembly automatically detects that the insulating rod is in place through the micro switch 208 on each grounding clamp 206;

[0096] The grounding clamp 206 is controlled by the main control board 111 to achieve clamping or opening of the grounding clamp 206;

[0097] The principle of the main control board 111 controlling the clamping or opening of the grounding clamp 206 has been disclosed in patent number CN217007419U.

[0098] Specifically, the high-pressure clamp assembly includes:

[0099] There are a plurality of insulating pillars 223, the number of which is the same as the number of grounding clamps 206, which are fixed to the partition 204 at equal intervals and close to the partition 204 and close to the side wall of the test cavity 205, and are located below the grounding clamps 206 and correspond to the positions of the grounding clamps 206 one by one;

[0100] The high voltage mounting cross beam 217 is fixedly connected to a plurality of insulating pillars 223 away from the side wall of the partition 204;

[0101] The power contact 219 is fixedly connected to the side wall of the high voltage installation beam 217 near the plurality of insulating pillars 223;

[0102] There are a plurality of high-voltage clamps 207, which are fixedly connected to the side walls of the high-voltage installation beam 217 away from the plurality of insulating pillars 223 at equal intervals, and correspond to the positions of the grounding clamps 206 one by one;

[0103] The electric push rod 222 is fixedly connected to the side wall of the partition 204 close to the driving chamber 216;

[0104] The power supply pillar 218 and the output end of the electric push rod 222 extend through the partition 204 into the test cavity 205, and the power supply pillar 218 is fixedly connected to the output end of the electric push rod 222 extending into the test cavity 205;

[0105] The high-voltage clamping jaw 207 and the electric push rod 222 are electrically connected to the main control board 111 .

[0106] In this embodiment, see the attached Figure 4 The high-voltage clamping jaw assembly starts by controlling the electric push rod 222 through the main control board 111. The electric push rod 222 pushes the power pillar 218 close to the power contact 219 and contacts the power contact 219. At this time, the main control board 111 can control the high-voltage clamping jaw 207 to clamp or open;

[0107] The principle of the main control board 111 controlling the clamping or opening of the high-pressure clamping jaws 207 has been disclosed in patent number CN217007419U;

[0108] During this process, after the high-voltage clamp 207 clamps the insulating rod, the main control board 111 controls the electric push rod 222 to start. The electric push rod 222 pushes the power support 218 away from the power contact 219 and releases from the power contact 219 to avoid high voltage damaging the equipment.

[0109] Specifically, the temperature measurement component includes:

[0110] The fixed crossbeam 221 is fixedly connected to the side wall of the partition 204 close to the driving cavity 216 and is located above the electric push rod 222;

[0111] There are several temperature measuring probes 220, the number of which is the same as the number of high-pressure clamps 207, which are fixed to the fixed crossbeam 221 at equal intervals. The partition 204 is provided with perforations corresponding to the positions of the temperature measuring probes 220, and the several temperature measuring probes 220 extend into the test cavity 205 through the perforations at the corresponding positions;

[0112] The temperature measuring probe 220 is electrically connected to the main control board 111 .

[0113] In this embodiment, see the attached Figure 4 The temperature measuring component automatically monitors the temperature rise of the insulating rod through the temperature measuring probe 220.

[0114] Specifically, a first limit switch 203 is fixedly connected to the side of the test cabin 201 close to the automatic flip door 202 and away from the installation side, and the first limit switch 203 is electrically connected to the main control board 111 .

[0115] In this embodiment, see the attached Figure 1 , when the main control board 111 automatically opens the automatic flip door 202, the first limit switch 203 is released, and the main control board 111 can detect the door opening signal to perform the next control;

[0116] When the main control board 111 automatically closes the automatic flip door 202, the first limit switch 203 is compressed, and the main control board 111 can detect the door closing signal to perform the next control;

[0117] That is, to improve the accuracy of the control process.

[0118] Specifically, it also includes a lifting mechanism, which is installed between the partition 204 and the grounded mounting beam 209, including:

[0119] The motor 212 is fixedly connected to the side wall of the partition 204 close to the driving chamber 216;

[0120] Two mounting blocks 224 are provided, fixedly connected to the side wall of the partition 204 close to the driving chamber 216 and located below the motor 212;

[0121] The ball screw 213 is arranged between the two mounting blocks 224, the top end of which passes through the upper mounting block 224 and extends upward to be connected to the output end of the motor 212 through a coupling, and the top end and the bottom end of which are respectively connected to the through section of the upper mounting block 224 and the lower mounting block 224 through bearings;

[0122] The translation beam 214 is connected to the ball screw 213 through a transmission nut;

[0123] Two second limit switches 226 are provided, which are fixed to the partition plate 204 in an upper and lower manner and are located on the sides of the two mounting blocks 224 close to each other;

[0124] There are two sliders 215, which are symmetrically fixed to the side wall of the translation beam 214 close to the partition 204;

[0125] Two guide rails 211 are provided, symmetrically fixed to the side wall of the partition 204 close to the driving cavity 216, and corresponding to the positions of the two sliders 215 one by one. The two sliders 215 are slidably connected to the two guide rails 211;

[0126] There are two connecting blocks 210, which are symmetrically fixed to the side wall of the translation beam 214 close to the partition 204 and located on the side away from the two sliders 215;

[0127] There are two translation openings 225, which are symmetrically opened on the partition 204 and correspond to the positions of the two connection blocks 210. One end of the two connection blocks 210 away from the translation beam 214 passes through the translation openings 225 at the corresponding positions and extends into the test cavity 205 to be fixedly connected to the grounding installation beam 209.

[0128] The motor 212 and the second limit switch 226 are electrically connected to the main control board 111 .

[0129] In this embodiment, see the attached Figure 3 and 5 The lifting mechanism controls the motor 212 to start through the main control board 111, and the motor 212 drives the output end to rotate. The output end of the motor 212 drives the ball screw 213 to rotate forward or reversely. During the forward or reverse rotation of the ball screw 213, the translation beam 214 moves up or down on the ball screw 213, and the translation beam 214 drives the two connecting blocks 210 to move up or down in the two translation openings 225. The two connecting blocks 210 drive the grounding installation beam 209 to move up or down, and the grounding installation beam 209 drives a plurality of grounding claws 206 to move up or down to achieve the distance adjustment between the grounding claw 206 and the high-voltage claw 207, which is suitable for the power frequency withstand voltage test of 0.4kV insulating rods of different specifications.

[0130] The overall working principle of the present invention:

[0131] The main control board 111 automatically opens the automatic flip door 202, the first limit switch 203 is released, the main control board 111 detects the door opening signal, controls the electric push rod 222 to start, and the electric push rod 222 pushes the power support 218 to approach the power contact 219 and contacts the power contact 219, so that the high-voltage clamp 207 communicates with the main control board 111;

[0132] The tester takes the insulating rod and places it in front of the RFID reader 102, and the RFID reader 102 recognizes the information of the RFID tag of the insulating rod;

[0133] Take the insulating rod and place it on the grounding clamp 206 and the high-voltage clamp 207. The micro switch 208 automatically detects that the insulating rod is in place, and the main control board 111 binds the information of the insulating rod to the current position.

[0134] Repeat the first two steps to put other insulating rods in place one by one;

[0135] When it is detected that insulating rods are placed on all the grounding claws 206, the main control board 111 controls the automatic flip door 202 to close automatically, the first limit switch 203 is compressed, and the main control board 111 detects a door closing signal;

[0136] The main control board 111 controls all the grounding clamps 206 and the high-voltage clamps 207 to automatically wrap and clamp the insulating rod 360 degrees;

[0137] After the insulating rod is clamped, the main control board 111 controls the electric push rod 222 to start, and the electric push rod 222 pushes the power support 218 away from the power contact 219 and releases from the power contact 219;

[0138] The touch terminal 104 prompts the tester to close the circuit breaker, and the tester and the upper knife switch 107;

[0139] After the main control board 111 detects the closing signal of the knife switch 107, it controls the contactor 110 to close, controls the automatic voltage regulator 109 to slowly increase the voltage, and simultaneously detects the voltage and current at the input and output sides of the automatic voltage regulator 109 and the high-voltage transformer 108 until the high-voltage voltage of the high-voltage transformer 108 reaches the standard test voltage value, and then starts timing;

[0140] While the voltage is being increased, the temperature probe 220 automatically monitors the temperature rise of the insulating rod and provides real-time feedback to the main control board 111;

[0141] After the timing is over, the main control board 111 automatically determines the test result according to the temperature rise of the insulating rod, and automatically uploads the test result to the background;

[0142] The main control board 111 controls the automatic voltage regulator 109 to quickly reduce the voltage until the automatic voltage regulator 109 drops to zero;

[0143] The main control board 111 controls the contactor 110 to open, and the touch terminal 104 prompts the tester to open the circuit breaker, and the tester opens the knife switch 107;

[0144] After the main control board 111 detects the opening signal of the knife switch 107, it controls the electric push rod 222 to start, and the electric push rod 222 pushes the power support 218 to approach the power contact 219 and contacts the power contact 219, so that the high-voltage clamp 207 communicates with the main control board 111;

[0145] The main control board 111 controls all the grounding clamps 206 and the high-voltage clamps 207 to open automatically, and controls the automatic flip door 202 to open automatically;

[0146] The test personnel removed the insulating rod and the test ended.

[0147] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 0.4kV insulating rod power frequency withstand voltage tester, characterized in that: include: Control bodies and testing bodies, of which: The controlling bodies include: The control cabin (101) is arranged on the ground, and the four corners of the bottom are respectively fixed with support feet; An RFID reader (102) is fixedly connected to the top of the control cabin (101); A high voltage transformer (108) is fixedly connected inside the control cabin (101); An automatic voltage regulator (109) is fixedly connected inside the control cabin (101) and located below the high-voltage transformer (108); A contactor (110) is fixedly connected inside the control cabin (101) and is located below the automatic voltage regulator (109); A main control board (111) is fixedly connected inside the control cabin (101) and is located on one side of the high-voltage transformer (108); A power switch (106) is fixedly connected to the operating side wall of the control cabin (101); A knife switch (107) is fixedly connected to the operating side wall of the control cabin (101) and is located on one side of the power switch (106); An emergency stop switch (103) is fixedly connected to the operating side wall of the control cabin (101) and is located on the other side of the power switch (106); A touch terminal (104) is fixedly connected to the operating side wall of the control cabin (101) and is located below the power switch (106), the knife switch (107) and the emergency stop switch (103); An indicator light (105) is fixed to the operating side wall of the control cabin (101) and is located below the touch terminal (104); Testing agencies include: The test cabin (201) is arranged on the ground, and has support feet fixedly connected to the four corners of the bottom, and is fixedly connected to the control cabin (101) near the side wall of the control cabin (101); A partition (204) is fixedly connected to the interior of the test chamber (201) to divide the interior of the test chamber (201) into a test chamber (205) and a drive chamber (216); A grounding clamp assembly is mounted on the partition (204) near the side wall of the test cavity (205); A high-voltage clamping claw assembly is mounted on the partition (204) close to the side wall of the test cavity (205) and below the grounding clamping claw (206); A temperature measuring component is mounted on the side wall of the partition (204) close to the driving chamber (216); An automatic flip door (202) is rotatably connected to the opening and closing side wall of the test cabin (201) away from the control cabin (101); The RFID reader / writer (102), the emergency stop switch (103), the touch terminal (104), the indicator light (105), the power switch (106), the knife switch (107), the high-voltage transformer (108), the automatic voltage regulator (109), the contactor (110), the grounding clamping claw assembly, the high-voltage clamping claw assembly, the temperature measuring assembly and the automatic flip door (202) are electrically connected to the main control board (111).

2. A 0.4kV insulating rod power frequency withstand voltage tester according to claim 1, characterized in that: The grounding clamp assembly comprises: A grounding installation crossbeam (209) is arranged on a side wall of the partition (204) close to the test cavity (205); A plurality of grounding clamps (206) are provided and fixedly connected to the grounding installation beam (209) at equal intervals; A plurality of micro switches (208) are provided and are respectively fixedly connected to a plurality of grounding clamps (206); The grounding clamp (206) and the micro switch (208) are electrically connected to the main control board (111).

3. A 0.4kV insulating rod power frequency withstand voltage tester according to claim 2, characterized in that: The high-pressure clamping jaw assembly comprises: A plurality of insulating pillars (223) are provided, the number of which is the same as the number of grounding clamps (206), and are fixedly connected to the partition (204) at equal intervals, close to the partition (204) and close to the side wall of the test cavity (205), and are located below the grounding clamp (206) and correspond one-to-one to the position of the grounding clamp (206); A high voltage installation beam (217) is fixedly connected to a plurality of insulating pillars (223) on the side wall away from the partition (204); A power contact (219) is fixedly connected to the side wall of the high voltage installation beam (217) near a plurality of insulating pillars (223); A plurality of high-voltage clamping claws (207) are provided, which are fixedly connected to the side walls of the high-voltage installation beam (217) away from the plurality of insulating pillars (223) at equal intervals and correspond to the positions of the grounding clamping claws (206) one by one; An electric push rod (222) is fixedly connected to a side wall of the partition (204) close to the driving chamber (216); A power supply pillar (218), an output end of the electric push rod (222) passes through the partition (204) and extends into the test cavity (205), and the power supply pillar (218) is fixedly connected to the output end of the electric push rod (222) extending into the test cavity (205); The high-voltage clamping claw (207) and the electric push rod (222) are electrically connected to the main control board (111).

4. A 0.4kV insulating rod power frequency withstand voltage tester according to claim 3, characterized in that: The temperature measuring component comprises: A fixed crossbeam (221) is fixedly connected to the side wall of the partition (204) close to the driving chamber (216) and is located above the electric push rod (222); A plurality of temperature measuring probes (220) are provided, the number of which is the same as the number of high-pressure clamping jaws (207), and are fixedly connected to the fixed crossbeam (221) at equal intervals. The partition (204) is provided with perforations corresponding to the positions of the temperature measuring probes (220), and the plurality of temperature measuring probes (220) extend into the test cavity (205) through the perforations at the corresponding positions; The temperature measuring probe (220) is electrically connected to the main control board (111).

5. A 0.4kV insulating rod power frequency withstand voltage tester according to claim 4, characterized in that: The test chamber (201) is fixedly connected with a first limit switch (203) on the side close to the automatic flip door (202) and away from the installation side, and (302) is electrically connected to the main control board (111).

6. A 0.4kV insulating rod power frequency withstand voltage tester according to claim 5, characterized in that: Also included is a lifting mechanism, which is assembled between the partition (204) and the grounded mounting crossbeam (209), and includes: The motor (212) is fixedly connected to the side wall of the partition (204) close to the driving chamber (216); Two mounting blocks (224) are provided, fixedly connected to the side wall of the partition (204) close to the driving chamber (216) and located below the motor (212); The ball screw (213) is arranged between the two mounting blocks (224), the top end of which passes through the upper mounting block (224) and extends upward to be connected to the output end of the motor (212) through a coupling, and the top end and the bottom end of which are respectively connected to the through section of the upper mounting block (224) and the lower mounting block (224) through bearings; The translation beam (214) is connected to the ball screw (213) via a transmission nut; Two second limit switches (226) are provided, fixedly connected to the partition plate (204) at the top and bottom, and located at the sides of the two mounting blocks (224) close to each other; Two sliders (215) are provided and are symmetrically fixed to the side wall of the translation beam (214) close to the partition (204); Two guide rails (211) are provided, symmetrically fixed to the side wall of the partition (204) close to the driving cavity (216), and corresponding to the positions of the two sliders (215) one by one. The two sliders (215) are slidably connected to the two guide rails (211); Two connecting blocks (210) are provided, symmetrically fixed to the side wall of the translation beam (214) close to the partition (204), and located on the side away from the two sliders (215); Two translation ports (225) are provided, symmetrically opened on the partition (204) and corresponding to the positions of the two connection blocks (210) one by one. One end of the two connection blocks (210) away from the translation beam (214) passes through the translation ports (225) at the corresponding positions and extends into the test cavity (205) to be fixedly connected to the grounding installation beam (209); The motor (212) and the second limit switch (226) are electrically connected to the main control board (111).

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