A high voltage test system and a high voltage test method

Abstract

The present invention discloses a high-voltage test system and a high-voltage test method. The system includes: a control device and a high-voltage test device. The high-voltage test device includes a test base, two insulating pillars, a plurality of cylinders and a high-voltage cross arm. The two insulating pillars are respectively arranged at the two ends of the test base. The high-voltage cross arm is set on the two insulating pillars. A plurality of arresters to be tested are placed in the middle of the two insulating pillars on the test base. A plurality of cylinders corresponding to a plurality of arresters to be tested are arranged on the high-voltage cross arm. The plurality of cylinders are electrically connected to the high-voltage cross arm. The control device connects the high-voltage cross arm and the plurality of cylinders. The control device controls the plurality of cylinders to contact the corresponding arresters to be tested in turn to test the arresters to be tested. By implementing the present invention, the probability and risk of personal safety accidents caused by electric shock due to the failure of the tester to discharge due to mistake are reduced. At the same time, during the test, it is only necessary to control the cylinder to contact it, the test time is short, the operation is simple, and the test efficiency and test capacity are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of lightning arrester detection, and in particular to a high-voltage testing system and a high-voltage testing method. Background Art

[0002] Zinc oxide arrester is currently recognized as the most excellent overvoltage protection device. Since its birth, it has been widely used in the fields of electricity, railways, mining, construction, petroleum, communications, chemical industry, steel, etc., providing protection for the damage caused by overvoltage attack of electrical equipment, and is deeply favored by users. Before leaving the factory, all arresters need to undergo factory tests (routine tests), that is, high-voltage electrical performance tests on the products.

[0003] However, the current lightning arrester testing device needs to test the lightning arresters one by one. Therefore, each product test requires manual line replacement and grounding discharge. When faced with a large number of products for repeated testing, the probability and risk of personal safety accidents caused by electric shock due to testers' mistakes and failure to discharge are increased. When testing multiple products at the same time, it is necessary to repeatedly increase and decrease the voltage, ground, replace the test product, and connect the wires. The operation is complicated, the test time is long, the test efficiency is low, and the test cost is high. Summary of the invention

[0004] In view of this, the embodiments of the present invention provide a high voltage testing system and a high voltage testing method to solve the technical problems in the prior art that there are great safety risks and low testing efficiency when testing a single lightning arrester.

[0005] The technical solution provided by the embodiment of the present invention is as follows:

[0006] A first aspect of an embodiment of the present invention provides a high-voltage testing system, comprising: a control device and a high-voltage testing device, wherein the high-voltage testing device comprises a test base, two insulating pillars, a plurality of cylinders and a high-voltage crossarm, the two insulating pillars are respectively arranged at two ends of the test base, the high-voltage crossarm is erected on the two insulating pillars, a plurality of lightning arresters to be tested are placed on the test base between the two insulating pillars, a plurality of cylinders corresponding to the plurality of lightning arresters to be tested are arranged on the high-voltage crossarm, and the plurality of cylinders are electrically connected to the high-voltage crossarm; the control device connects the high-voltage crossarm and the plurality of cylinders, and the control device controls the plurality of cylinders to contact the corresponding lightning arresters to be tested in turn to test the lightning arresters to be tested.

[0007] Optionally, the control device includes: a DC high-voltage generating control device and a cylinder opening and closing control device, the DC high-voltage generating control device is connected to the high-voltage crossarm, used to provide the voltage required for testing the lightning arrester to be tested, and control the lightning arrester to be tested to complete electrical testing; the cylinder opening and closing control device is connected to multiple cylinders, used to control the multiple cylinders to contact the corresponding lightning arresters to be tested in turn to form a pathway.

[0008] Optionally, the test base includes: a low-voltage grounding cross arm and a plurality of supporting bases arranged on the low-voltage cross arm, and a plurality of lightning arresters to be tested are arranged on the plurality of supporting bases.

[0009] Optionally, the high-voltage testing system further comprises: an air filter, wherein the air filter is arranged between the cylinder opening and closing control device and the plurality of cylinders.

[0010] Optionally, the high-voltage testing system also includes: a resistor voltage divider, the DC high-voltage generation control device includes a DC high-voltage generator, an AC-DC test transformer, and an AC test voltage regulator, one end of the DC high-voltage generator is connected to one end of the resistor voltage divider and the high-voltage crossarm, the other end of the resistor voltage divider is connected to the test base and the AC-DC test transformer, and the AC test voltage regulator is connected to the AC-DC test transformer.

[0011] Optionally, the high voltage test system further comprises: a grounding rod, one end of which is connected to the AC-DC test transformer via a grounding wire.

[0012] Optionally, the cylinder is any one of an aluminum alloy cylinder, a stainless steel cylinder and a cast iron cylinder; a piston is provided in the cylinder, and when the cylinder and the lightning arrester to be tested are not in contact, there is an air gap between the cylinder and the lightning arrester, and when the lightning arrester to be tested is tested, the control device controls the piston to contact the lightning arrester to be tested.

[0013] Optionally, the number of the plurality of arresters to be tested placed between two insulating pillars on the test base is greater than or equal to ten, and the rated voltage of the arresters to be tested is greater than or equal to 51 kV.

[0014] A second aspect of an embodiment of the present invention provides a high-voltage testing method, which is applied to the high-voltage testing system described in the first aspect of the embodiment of the present invention and any one of the first aspects, and the method includes: placing the lightning arrester to be tested on a test base; closing the first control button in the control device, controlling the movement of the first cylinder and contacting the corresponding lightning arrester to form a path; using the control device to increase and decrease the voltage of the lightning arrester to be tested, and performing an electrical test; controlling the first control button to disconnect, and controlling the second control button to close, to complete the electrical test of the second lightning arrester to be tested; controlling the disconnection and closing operations of the control buttons in sequence until the test of all lightning arresters to be tested on the test base is completed.

[0015] Optionally, when a grounding rod is connected to the control device, the testing method further includes: removing the grounding rod before closing the first control button; after completing the testing of all lightning arresters to be tested on the base to be tested, cutting off the power supply of the control device, short-circuiting the high-voltage end of the control device with the grounding rod, replacing another batch of lightning arresters to be tested and continuing the test.

[0016] The technical solution of the present invention has the following advantages:

[0017] The high-voltage test system provided by the embodiment of the present invention is composed of a control device and a high-voltage test device. A test base, two insulating pillars, multiple cylinders and a high-voltage cross arm are arranged in the high-voltage test device. Multiple arresters to be tested can be arranged on the test base. The cylinders electrically connected to the high-voltage cross arm are used to contact the arresters to be tested in turn to form a path, thereby completing the test of the arresters to be tested. Therefore, the high-voltage test system provided by the embodiment of the present invention can realize the test of multiple arresters to be tested, reducing the probability and risk of personal safety accidents caused by electric shock caused by the test personnel due to the failure to discharge due to mistakes; at the same time, when each arrester to be tested is tested, it is only necessary to control the cylinder to contact it, the test time is short, the operation is simple, the test efficiency and test capacity are greatly improved, and the test cost is reduced.

[0018] The high-voltage test system provided by the embodiment of the present invention adopts two insulating pillars to fix the high-voltage cross arm as the high-voltage end, and pneumatically controls the opening and closing of the switch by fixing the cylinder on the high-voltage cross arm. At the same time, the high voltage and the control part are insulated and isolated by pressurized air, and the air insulation strength is high, which is easy to implement and has strong operability. Therefore, by adopting the high-voltage test system, the tester can realize the high-voltage closing and opening by operating the control device in the control room, and switch different cylinders for testing. At the same time, there is no need to disconnect the lightning arrester to be tested every time the test voltage is reduced to 0 value. When the voltage drops to 75% of the highest voltage of the previous lightning arrester, it can be directly disconnected, and then the corresponding cylinder of the next lightning arrester to be tested is closed to connect the high-voltage end, and the electrical test of the second lightning arrester to be tested can be continued.

[0019] Therefore, the high-voltage test system provided by the embodiment of the present invention reduces the probability and risk of personal safety accidents caused by electric shock due to failure to discharge due to errors by testers, and the error probability is reduced by 90% compared with the existing test method. It is not necessary to ground each product, replace the test product, or connect the wires. The operation is simple, the test time is short, and the test efficiency is high. Moreover, through experiments, the operation of the high-voltage test system has achieved the expected goals, the test efficiency has been improved by more than 4 times, the test cost has been greatly reduced, and the test capacity has been further improved.

[0020] The high-voltage test method provided by the embodiment of the present invention adopts a high-voltage test system composed of a control device and a high-voltage test device, and a test base, two insulating pillars, multiple cylinders and a high-voltage cross arm are set in the high-voltage test device. Multiple lightning arresters to be tested can be set on the test base, and the cylinders electrically connected to the high-voltage cross arm are used to contact the lightning arresters to be tested in turn to form a path, thereby completing the test of the lightning arresters to be tested. Therefore, the high-voltage test system provided by the embodiment of the present invention can realize the test of multiple lightning arresters to be tested, reducing the probability and risk of personal safety accidents caused by electric shock caused by the test personnel due to the failure to discharge due to mistakes; at the same time, when each lightning arrester to be tested is tested, it only needs to control the contact between the cylinder and it, the test time is short, the operation is simple, and the test efficiency and test capacity are greatly improved, and the test cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A structural block diagram of a high voltage test system in an embodiment of the present invention;

[0023] Figure 2 A structural block diagram of a high voltage test system in another embodiment of the present invention;

[0024] Figure 3 A structural block diagram of a high voltage test system in another embodiment of the present invention;

[0025] Figure 4 Flow chart of a high voltage testing method in an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal connection of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] The embodiment of the present invention provides a high voltage test system, such as Figure 1 As shown, the high-voltage test system includes: a control device 10 and a high-voltage test device 20, the high-voltage test device 20 includes a test base 21, two insulating pillars 22, a plurality of cylinders 23 and a high-voltage cross arm 24, the two insulating pillars 22 are respectively arranged at the two ends of the test base 21, the high-voltage cross arm 24 is erected on the two insulating pillars 22, a plurality of lightning arresters 25 to be tested are placed in the middle of the two insulating pillars 22 on the test base 21, a plurality of cylinders 23 corresponding to the plurality of lightning arresters 25 to be tested are arranged on the high-voltage cross arm 24, and the plurality of cylinders 23 and the high-voltage cross arm 24 are electrically connected; the control device 10 connects the high-voltage cross arm 24 and the plurality of cylinders 23, and the control device 10 controls the plurality of cylinders 23 to contact the corresponding lightning arresters 25 to be tested in turn to test the lightning arresters 25 to be tested.

[0031] The high-voltage test system provided by the embodiment of the present invention is composed of a control device and a high-voltage test device. A test base, two insulating pillars, multiple cylinders and a high-voltage cross arm are arranged in the high-voltage test device. Multiple arresters to be tested can be arranged on the test base. The cylinders electrically connected to the high-voltage cross arm are used to contact the arresters to be tested in turn to form a path, thereby completing the test of the arresters to be tested. Therefore, the high-voltage test system provided by the embodiment of the present invention can realize the test of multiple arresters to be tested, reducing the probability and risk of personal safety accidents caused by electric shock caused by the test personnel due to the failure to discharge due to mistakes; at the same time, when each arrester to be tested is tested, it is only necessary to control the cylinder to contact it, the test time is short, the operation is simple, the test efficiency and test capacity are greatly improved, and the test cost is reduced.

[0032] In one embodiment, if Figure 2 As shown, the test base 21 includes: a low-voltage grounding cross arm 201 and a plurality of supporting bases 202 arranged on the low-voltage grounding cross arm 201, and a plurality of lightning arresters 25 to be tested are arranged on the plurality of supporting bases 202. Specifically, the number of supporting bases 202 can be set to at least ten, for example, ten bases, fifteen bases or twenty bases can be set. If the number of bases is set is small, it is still necessary to frequently replace the lightning arresters to be tested, and the test efficiency cannot be greatly improved. At the same time, the high-voltage test system can test lightning arresters with a rated voltage greater than or equal to 51kV. In addition, the insulating pillars arranged at both ends of the test base can achieve insulation between the high-voltage cross arm and the ground.

[0033] Therefore, the insulating support can be a composite jacket support, and can be replaced by a porcelain jacket support. However, it cannot be replaced by an insulating rod without an umbrella skirt, otherwise surface flashover will occur, resulting in short circuit tripping. In addition, the cylinder can be any one of an aluminum alloy cylinder, a stainless steel cylinder and a cast iron cylinder; the high-voltage cross arm can be made of ordinary carbon steel plate, or it can be replaced by an aluminum alloy.

[0034] As an optional implementation of the embodiment of the present invention, Figure 3 As shown, the control device 10 includes a cylinder opening and closing control device 11, and the cylinder opening and closing control device 11 is connected to a plurality of cylinders 23, and is used to control the plurality of cylinders 23 to contact the corresponding arresters 25 to be tested in turn, so as to form a passage 26. Specifically, a piston is provided in the cylinder 23, and when the cylinder and the arrester are not in contact, there is an air gap 27 between the cylinder and the arrester, and when the arrester is tested, the control device controls the piston to move and contact the arrester. Specifically, when the arrester is not tested, there is an air gap between the cylinder or the high-voltage cross arm and the arrester, and the air gap can bear the high voltage without being broken down.

[0035] Specifically, Figure 3As shown, a plurality of control buttons 101 are provided on the cylinder opening and closing control device 11, and each control button controls a cylinder. For example, after the arrester to be tested is placed on the test base, the first control button can be controlled to close the switch first, thereby controlling the first cylinder to contact the corresponding arrester to form a path and realize the test of the arrester. At the same time, when the first control button is closed, the other control buttons can be controlled not to close the switch, which can be specifically set in the cylinder opening and closing control device. Only when the first control button is disconnected can any one of the other control buttons be closed. That is, the high-voltage test system cannot test two or more arresters to be tested at the same time to prevent errors in the test results.

[0036] In one embodiment, the high-voltage test system further includes: an air filter 12, which is arranged between the cylinder opening and closing control device 11 and the plurality of cylinders 23. Specifically, the air filter 12 is composed of a conventional oil-water separator and a drying and regeneration device, which has a great influence on the insulation of the high-voltage end cylinder and cannot be replaced by an ordinary filter, otherwise there will be a risk of high-voltage short circuit. The air filter 12 is connected to each cylinder through an inlet pipe and an outlet pipe, and the inlet pipe and the outlet pipe are ordinary PVC air pipes.

[0037] Specifically, since the cylinder is electrically connected to the high-voltage cross arm, and the cylinder is connected to the cylinder opening and closing control device through the air filter, and the operator needs to touch the cylinder opening and closing control device to perform opening and closing operations, it is necessary to achieve electrical isolation between the cylinder and the cylinder opening and closing control device. The air filter can filter and dry the air in the air pipe, so that the dried air can achieve electrical isolation to avoid serious electric shock safety accidents to the operator.

[0038] As an optional implementation of an embodiment of the present invention, the control device also includes: a DC high voltage generating control device, the DC high voltage generating control device is connected to the high voltage cross arm, and is used to provide the voltage required for the lightning arrester test and control the lightning arrester to complete the electrical test.

[0039] In one embodiment, if Figure 3As shown, the high-voltage test system also includes: a resistor divider 13, a DC high-voltage generation control device including a DC high-voltage generator 14, an AC-DC test transformer 15, and an AC test voltage regulator 16, one end of the DC high-voltage generator 14 is connected to one end of the resistor divider 13 and a high-voltage cross arm 24, the other end of the resistor divider 13 is connected to a test base 21 and the AC-DC test transformer 15, and the AC test voltage regulator 16 is connected to the AC-DC test transformer 15. Among them, one end of the DC high-voltage generator 14 is connected to one end of the resistor divider 13 and the high-voltage cross arm 24 through a high-voltage test wire, and the other end of the resistor divider 13 is connected to the test base 21 and the AC-DC test transformer 15 through a low-voltage test wire.

[0040] Among them, the DC high-voltage generator, AC-DC test transformer and AC test voltage regulator are set up to provide high voltage to the lightning arrester. At the same time, the DC 1mA reference voltage test and the leakage current test at 0.75 times the DC 1mA reference voltage can be carried out on the lightning arrester to be tested through voltage adjustment.

[0041] In one embodiment, the high voltage test system further includes: a grounding rod 17, one end of which is connected to the AC-DC test transformer 15 via a grounding wire. Specifically, the grounding wire can be a copper grounding wire with a cross-sectional area of ​​not less than 6mm 2 In addition, by setting up a grounding rod, the grounding rod can be removed before the test. After the test is completed, the grounding rod can be used to short-circuit the high-voltage end of the DC high-voltage generating control device and the high-voltage end of the lightning arrester to be tested to discharge the residual charge therein.

[0042] The high-voltage test system provided by the embodiment of the present invention adopts two insulating pillars to fix the high-voltage cross arm as the high-voltage end, and pneumatically controls the opening and closing of the switch by fixing the cylinder on the high-voltage cross arm. At the same time, the high voltage and the control part are insulated and isolated by pressurized air, and the air insulation strength is high, which is easy to implement and has strong operability. Therefore, by adopting the high-voltage test system, the tester can realize the high-voltage closing and opening by operating the control device in the control room, and switch different cylinders for testing. At the same time, there is no need to disconnect the lightning arrester to be tested every time the test voltage is reduced to 0 value. When the voltage drops to 75% of the highest voltage of the previous lightning arrester, it can be directly disconnected, and then the corresponding cylinder of the next lightning arrester to be tested is closed to connect the high-voltage end, and the electrical test of the second lightning arrester to be tested can be continued.

[0043] Therefore, the high-voltage test system provided by the embodiment of the present invention reduces the probability and risk of personal safety accidents caused by electric shock due to failure to discharge due to errors by testers, and the error probability is reduced by 90% compared with the existing test method. It is not necessary to ground each product, replace the test product, or connect the wires. The operation is simple, the test time is short, and the test efficiency is high. Moreover, through experiments, the operation of the high-voltage test system has achieved the expected goals, the test efficiency has been improved by more than 4 times, the test cost has been greatly reduced, and the test capacity has been further improved.

[0044] The embodiment of the present invention also provides a high voltage testing method, such as Figure 4 As shown, the method is applied to the high voltage test system described in any one of the above embodiments, and the method comprises the following steps:

[0045] Step S101: Place the arrester to be tested on the test base; specifically, after setting and connecting according to the device in the above-mentioned high-voltage test system, the connection status of the loop can be checked first, and when there is no problem, the arrester to be tested is placed on the test base. The number of arresters to be tested can be ten, and the number of cylinders set on the high-voltage crossarm can also be ten.

[0046] Step S102: close the first control button in the control device, control the first cylinder to move and contact the corresponding lightning arrester, and form a path; specifically, before closing the control button, the grounding rod connected to the high voltage end of the DC high voltage generation control device can be removed. Then close the first control button in the cylinder separation and closing control device, control the piston in the first cylinder to move and contact the corresponding lightning arrester, and form a path.

[0047] Step S103: Use the control device to increase and decrease the voltage of the arrester to be tested for electrical testing. Specifically, after the path is formed, the DC high voltage generation control device can be controlled to increase the voltage to perform an electrical test on the arrester and read and record the corresponding voltage and current data; then the DC high voltage generation control device can be controlled to decrease the voltage to a 0.75 DC 1mA test voltage value and record it.

[0048] Step S104: Control the first control button to open, control the second control button to close, and complete the electrical test of the second arrester to be tested; specifically, after the test of the first arrester to be tested is completed, the first control button in the cylinder opening and closing control device can be controlled to open, so that the first cylinder moves upward and separates from the arrester to form a circuit. Then control the second control button in the cylinder opening and closing control device to close, so that the second cylinder moves downward to contact the corresponding arrester to form a path, and then repeat the test process in step S103 to complete the test of the second arrester to be tested.

[0049] Step S105: Control the opening and closing operations of the control buttons in sequence until the test of all the arresters to be tested on the test base is completed. Specifically, the closing and disconnecting operations of other control buttons in the cylinder opening and closing control device can be performed in sequence until the test of ten arresters is completed. After completing the test of ten arresters, the voltage of the DC high-voltage generating control device can be reduced to zero, and then the power supply can be cut off, and the high-voltage end of the DC high-voltage generating control device and the high-voltage end of the arrester to be tested can be short-circuited with a grounding rod to discharge the residual charge therein. Afterwards, another ten arresters can be replaced for cyclic testing.

[0050] The high-voltage test method provided by the embodiment of the present invention adopts a high-voltage test system composed of a control device and a high-voltage test device, and a test base, two insulating pillars, multiple cylinders and a high-voltage cross arm are set in the high-voltage test device. Multiple lightning arresters to be tested can be set on the test base, and the cylinders electrically connected to the high-voltage cross arm are used to contact the lightning arresters to be tested in turn to form a path, thereby completing the test of the lightning arresters to be tested. Therefore, the high-voltage test system provided by the embodiment of the present invention can realize the test of multiple lightning arresters to be tested, reducing the probability and risk of personal safety accidents caused by electric shock caused by the test personnel due to the failure to discharge due to mistakes; at the same time, when each lightning arrester to be tested is tested, it only needs to control the contact between the cylinder and it, the test time is short, the operation is simple, and the test efficiency and test capacity are greatly improved, and the test cost is reduced.

[0051] In one embodiment, the high-voltage test method can be tested according to the following process: check the integrity of the test device circuit; place 10 lightning arresters to be tested on the test base in turn; remove the grounding rod connected to the DC high-voltage generation control device; operate the first control button of the cylinder opening and closing control device to make the first cylinder move downward to contact the high-voltage end of the lightning arrester to form a path; perform electrical tests on the lightning arrester by controlling the DC high-voltage generation control device to boost the voltage and read the corresponding voltage and current data and record them; then reduce the voltage to 0.75 DC 1mA test voltage value, and then operate the first cylinder to move upward to separate from the high-voltage end of the lightning arrester to form a circuit break. Then operate the second button of the cylinder opening and closing control device to make the second cylinder move downward to contact the high-voltage end of the lightning arrester to form a path, and repeat the above steps until the test of ten lightning arresters is completed in turn; after completing the test of ten lightning arresters, reduce the voltage to 0 and open the gate to cut off the test power supply, and then use the grounding rod to short-circuit the high-voltage end of the DC high-voltage generation control device and the high-voltage end of the lightning arrester to be tested to discharge the residual charge; then replace the test sample to complete the test of a batch of lightning arresters (10). Repeat the above steps for the next batch of products to form a test cycle.

[0052] Although the exemplary embodiments and their advantages have been described in detail, those skilled in the art may make various changes, substitutions and modifications to these embodiments without departing from the spirit of the present invention and the scope of protection defined by the appended claims, and such modifications and variations all fall within the scope defined by the appended claims. For other examples, those of ordinary skill in the art should readily understand that the order of the process steps may be changed while maintaining the scope of protection of the present invention.

[0053] In addition, the scope of application of the present invention is not limited to the processes, mechanisms, manufactures, material compositions, means, methods and steps of the specific embodiments described in the specification. From the disclosure of the present invention, it will be easily understood by those skilled in the art that the processes, mechanisms, manufactures, material compositions, means, methods or steps that currently exist or will be developed in the future, which perform substantially the same functions as the corresponding embodiments described in the present invention or obtain substantially the same results, can be applied according to the present invention. Therefore, the claims attached to the present invention are intended to include these processes, mechanisms, manufactures, material compositions, means, methods or steps within their scope of protection.

Claims

1. A high voltage test system, characterized in that: include: Ground rod, control device, high voltage test device, cylinder opening and closing control device and air filter, The high-voltage test device comprises a test base, two insulating pillars, a plurality of cylinders and a high-voltage cross arm, wherein the two insulating pillars are respectively arranged at two ends of the test base, the high-voltage cross arm is erected on the two insulating pillars, a plurality of arresters to be tested are placed between the two insulating pillars on the test base, a plurality of cylinders corresponding to the plurality of arresters to be tested are arranged on the high-voltage cross arm, and the plurality of cylinders and the high-voltage cross arm are electrically connected; The control device is connected to the high-voltage cross arm and a plurality of cylinders, and the control device controls the plurality of cylinders to contact the corresponding arresters to be tested in sequence to test the arresters to be tested; The control device comprises a DC high voltage generating control device, which is connected to the high voltage cross arm and used to provide the voltage required for testing the arrester to be tested, and control the arrester to be tested to complete the electrical test. The grounding rod is removed before the test. After the test is completed, the grounding rod is used to short-circuit the high voltage end of the DC high voltage generating control device and the high voltage end of the arrester to be tested to discharge the residual charge therein; The cylinder opening and closing control device is connected to a plurality of cylinders and is used to control the plurality of cylinders to contact the corresponding arresters to be tested in sequence to form a passage; The air filter is arranged between the cylinder opening and closing control device and the plurality of cylinders; The number of the plurality of arresters to be tested placed between two insulating pillars on the test base is greater than or equal to ten, and the rated voltage of the arresters to be tested is greater than or equal to 51 kV.

2. The high voltage test system according to claim 1, characterized in that: The test base comprises: a low-voltage grounding cross arm and a plurality of supporting bases arranged on the low-voltage grounding cross arm, and a plurality of lightning arresters to be tested are arranged on the plurality of supporting bases.

3. The high voltage test system according to claim 2, characterized in that: Also includes: The DC high voltage generation control device comprises a DC high voltage generator, an AC-DC test transformer, and an AC test voltage regulator. One end of the DC high voltage generator is connected to one end of the resistor divider and the high voltage cross arm, the other end of the resistor divider is connected to the test base and the AC-DC test transformer, and the AC test voltage regulator is connected to the AC-DC test transformer.

4. The high voltage test system according to claim 3, characterized in that: One end of the grounding rod is connected to the AC-DC test transformer through a grounding wire.

5. The high voltage test system according to claim 1, characterized in that: The cylinder is any one of an aluminum alloy cylinder, a stainless steel cylinder and a cast iron cylinder; a piston is arranged in the cylinder, and when the cylinder and the arrester to be tested are not in contact, there is an air gap between the cylinder and the arrester to be tested, and when the arrester to be tested is tested, the control device controls the piston to contact the arrester to be tested.

6. A high voltage testing method, characterized in that: The method is applied to the high voltage test system according to any one of claims 1 to 5, and the method comprises: Place the arrester to be tested on the test base; Close the first control button in the control device to control the movement of the first cylinder and contact the corresponding lightning arrester to form a pathway; Use the control device to step up and down the voltage of the arrester to be tested to perform electrical testing; Control the first control button to open, and control the second control button to close, to complete the electrical test of the second arrester to be tested; Control the opening and closing operations of the control buttons in sequence until the test of all the arresters to be tested on the test base is completed; When a grounding rod is connected to the control device, this test method also includes: Remove the ground rod before closing the first control button; After completing the test of all the arresters to be tested on the test base, cut off the power supply of the control device, short-circuit the high-voltage end of the control device with a grounding rod, and replace another batch of arresters to be tested to continue testing.

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