CN112462142A - Insulation resistance testing device - Google Patents
Insulation resistance testing device Download PDFInfo
- Publication number
- CN112462142A CN112462142A CN202011270147.4A CN202011270147A CN112462142A CN 112462142 A CN112462142 A CN 112462142A CN 202011270147 A CN202011270147 A CN 202011270147A CN 112462142 A CN112462142 A CN 112462142A
- Authority
- CN
- China
- Prior art keywords
- test
- insulation resistance
- control device
- testing
- insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 211
- 238000009413 insulation Methods 0.000 title claims abstract description 111
- 238000004891 communication Methods 0.000 claims abstract description 24
- 230000016507 interphase Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses an insulation resistance testing device, which comprises a communication interface, a primary testing switching interface and a secondary interface, wherein the communication interface is used for receiving a test signal; the communication interface is in communication connection with the comprehensive test control device; the primary test switching interface is connected with an upper main contact and a lower contact of the tested switch, primary loop insulation resistance test and secondary loop insulation resistance test switching are achieved under the control of the comprehensive test control device, the secondary interface is connected with a secondary aerial plug of the tested switch, and secondary loop insulation resistance test is achieved under the control of the comprehensive test control device. According to the invention, the manual test of the insulation resistor is upgraded into the automatic test, the test data is automatically stored, and the maintenance report is generated, so that the test process is simplified, the working risk is reduced, and the test efficiency is improved.
Description
Technical Field
The invention relates to the technical field of insulation resistance testing, in particular to an insulation resistance testing device.
Background
In the fields of nuclear power, factories, mines, rail transit and the like, medium-voltage switch insulation resistance tests are divided into primary loop insulation resistance and secondary loop insulation, the primary loop insulation test voltage is 2500V, multiple tests of ground insulation, phase insulation and fracture insulation are needed, and the secondary loop insulation test voltage is 500V. At present, on-the-spot all is through 2500V and 500V megohmmeter to insulation resistance test, can only pass through instrument panel manual operation output test voltage, test mode need be through many times tear open the line, the record is read to the data manual work, data can't be preserved to test system, unable generation overhauls the statement, this mode involves tearing open the line many times, there is direct current return circuit short circuit, the ground connection risk, and connect wrong line risk, insulation test voltage is higher, certain danger has, the operation is complicated and the risk is big, it is loaded down with trivial details to lead to the test efficiency low to tear the line process open.
The above problems are urgently needed to be solved.
Disclosure of Invention
The object of the present invention is to solve the problems mentioned in the background section above by means of an insulation resistance testing device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the embodiment of the invention provides an insulation resistance testing device, which comprises a communication interface, a primary testing switching interface and a secondary interface, wherein the communication interface is used for receiving a test signal; the communication interface is in communication connection with the comprehensive test control device; the primary test switching interface is connected with an upper main contact and a lower contact of a tested switch, primary loop (main loop) insulation resistance test and secondary loop insulation resistance test switching are realized under the control of the comprehensive test control device, the secondary interface is connected with a secondary aerial plug of the tested switch, and secondary loop insulation resistance test is realized under the control of the comprehensive test control device; during automatic testing, the comprehensive test control device sends a test instruction to the insulation resistance test device in a communication mode, the insulation resistance test device outputs set voltage and test circuits through the primary test switching interface and the secondary interface according to the received control instruction, so that the insulation resistance tester realizes insulation resistance testing of a primary loop and a secondary loop, test data are stored in the comprehensive test control device in the communication mode, and an overhaul report is generated.
Particularly, the primary loop insulation resistance test comprises a three-phase-to-ground insulation test, an interphase insulation test and a three-phase fracture insulation test, and the primary test switching interface is controlled by the comprehensive test control device to realize automatic switching of the three-phase-to-ground insulation test mode, the interphase insulation test mode, the three-phase fracture insulation test mode and the secondary loop insulation resistance test.
Particularly, the comprehensive protection test control device stores the test data of the previous times and generates a performance trend chart of the overhaul device to remind a user of replacing the damaged element in time.
Particularly, the testing device and the comprehensive testing control device are independent modules, the comprehensive testing control device and the insulation resistance testing device are directly stacked after being separately transported to a testing site, the connection of screws is not needed, and the testing device and the comprehensive testing control device can be tested after being connected with a communication line.
In particular, the testing device and the comprehensive testing control device are modules with the width of 400mm, the depth of 400mm and the height of 300mm, but are not limited to, and are independently placed in the draw-bar box when not in use.
The insulation resistance testing device provided by the invention upgrades the manual testing of the insulation resistance into the automatic testing, the testing data is automatically stored, and the maintenance report is generated, so that the testing process is simplified, the working risk is reduced, and the testing efficiency is improved. The insulation resistance testing device completes the verification according to the program setting, so that the insulation resistance tester can realize the insulation resistance test of a secondary loop, an operator only needs to select items to be tested in a computer, a dismounting line and a manual operation instrument are omitted, and the safety risk is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an insulation resistance testing apparatus according to an embodiment of the present invention;
fig. 2 is a structural diagram of a primary loop insulation resistance test circuit according to an embodiment of the present invention;
fig. 3 is a structural diagram of a secondary circuit insulation resistance test circuit according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the insulation resistance testing apparatus in this embodiment includes a communication interface, a primary test switching interface, and a secondary interface; the communication interface is in communication connection with the comprehensive test control device; the primary test switching interface is connected with an upper main contact and a lower contact of a tested switch, primary loop (main loop) insulation resistance test and secondary loop insulation resistance test switching are realized under the control of the comprehensive test control device, the secondary interface is connected with a secondary aerial plug of the tested switch, and secondary loop insulation resistance test is realized under the control of the comprehensive test control device; during automatic testing, the comprehensive test control device sends a test instruction to the insulation resistance test device in a communication mode, the insulation resistance test device outputs set voltage and test circuits through the primary test switching interface and the secondary interface according to the received control instruction, so that the insulation resistance tester realizes insulation resistance testing of a primary loop and a secondary loop, test data are stored in the comprehensive test control device in the communication mode, and an overhaul report is generated.
Specifically, in this embodiment, the primary loop insulation resistance test includes a three-phase-to-ground insulation test, an inter-phase insulation test, and a three-phase fracture insulation test, and the primary test switching interface realizes automatic switching of the three-phase-to-ground insulation test mode, the inter-phase insulation test mode, the three-phase fracture insulation test mode, and the secondary loop insulation resistance test under the control of the integrated test control device.
Specifically, in this embodiment, the comprehensive protection test control device stores the test data of the previous time, generates the performance trend graph of the maintenance device, predicts the service life, and reminds the user to replace the damaged element in time.
Specifically, in this embodiment, the testing device and the integrated testing control device are independent modules, and the integrated testing control device and the insulation resistance testing device are directly stacked after being separately transported to a testing site, without screw connection, and the testing device and the integrated testing control device can be tested after being connected with a communication line. In specific application, the testing device and the comprehensive testing control device are modules with the width of 400mm, the depth of 400mm and the height of 300mm, and are independently placed in the draw-bar box when not in use.
In this embodiment, the test software is used to control the one-time test switching interface, so as to implement the test of the insulation resistance in various test modes, control the test voltage of the insulation resistance tester, upload the test data to the test system, and calculate to obtain the test conclusion. The operator only needs to select the items to be tested in the computer, so that a dismounting line and a manual operation instrument are omitted, the safety risk is reduced, the working efficiency can be improved by three times, the test data automatically generate a report form, the result can be conveniently and directly observed, the historical data can be recorded, the trends of various performances of the element can be obtained, the service life can be predicted, and the unqualified element can be timely replaced.
In practical application, as shown in fig. 2, fig. 2 is a structural diagram of a primary loop insulation resistance test circuit provided in an embodiment of the present invention, where GD is an insulation resistance tester; three contactors of KM1, KM2 and KM3 are controlled by the comprehensive test control device to realize the test of three insulation resistances, and the following three test modes are provided:
1. three-phase insulation test:
and (3) controlling KM1 to suck, enabling the medium-voltage switch to be in a closing state, and testing whether the three phases of the medium-voltage switch and the shell meet the insulation standard by using an insulation resistance tester.
2. And (3) testing the phase insulation:
the KM3 is controlled to be attracted, the medium-voltage switch is in a closing state, and the insulation resistance tester tests whether the phase in the medium-voltage switch and the other two phases meet the insulation standard
3. Three-phase fracture insulation test:
and controlling the KM1 and the KM2 to attract each other, enabling the medium-voltage switch to be in a switching-off state, and testing whether the upper fracture and the lower fracture of the medium-voltage switch meet the insulation standard by using an insulation resistance tester.
In practical application, as shown in fig. 3, fig. 3 is a structural diagram of a secondary circuit insulation resistance test circuit provided in an embodiment of the present invention, where GD is an insulation resistance tester; when the test device is used, the secondary interface is connected with the secondary aerial plug of the tested switch, the KM4 is controlled to suck, and the insulation resistance tester tests whether the internal secondary loop of the medium-voltage switch meets the insulation standard through the secondary aerial plug.
According to the technical scheme provided by the embodiment of the invention, the testing software is used for controlling the primary testing switching interface to automatically switch the primary testing switching interface into a ground insulation testing mode, an interphase insulation testing mode, a fracture insulation testing mode and a secondary insulation testing mode, the testing wires are added at the upper end and the lower end of the three phases of the medium-voltage switch when the primary loop insulation resistance is tested, an inspector can complete automatic testing only by selecting the testing mode on the comprehensive testing control device, the testing data are automatically stored, and the wire disconnecting work is not needed in the testing process, so that the traditional manual testing is replaced, the risk in the testing process is reduced, the error rate is reduced, and the working efficiency is improved. During secondary insulation test, a middle-voltage switch is only required to be secondarily inserted into a matched secondary interface, an inspector can complete automatic test only by selecting a secondary test insulation mode on the comprehensive test control device, and test data are automatically stored. The insulation resistance testing device is in modular design and is matched with the comprehensive testing control device for use, and the insulation resistance testing device can be connected with the comprehensive testing control device only by a communication line, so that automatic testing is realized. In addition, the invention also supports manual testing through the panel of the insulation resistance testing device.
It will be understood by those skilled in the art that all or part of the above embodiments may be implemented by hardware related to instructions of a program in a microcomputer module, where the program may be stored in a storage medium readable by the microcomputer module, and when executed, may include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (5)
1. An insulation resistance testing device is characterized by comprising a communication interface, a primary testing switching interface and a secondary interface; the communication interface is in communication connection with the comprehensive test control device; the primary test switching interface is connected with an upper main contact and a lower contact of a tested switch, primary loop insulation resistance test and secondary loop insulation resistance test switching are realized under the control of the comprehensive test control device, the secondary interface is connected with a secondary aerial plug of the tested switch, and secondary loop insulation resistance test is realized under the control of the comprehensive test control device; during automatic testing, the comprehensive test control device sends a test instruction to the insulation resistance test device in a communication mode, the insulation resistance test device outputs set voltage and test circuits through the primary test switching interface and the secondary interface according to the received control instruction, so that the insulation resistance tester realizes insulation resistance testing of a primary loop and a secondary loop, test data are stored in the comprehensive test control device in the communication mode, and an overhaul report is generated.
2. The insulation resistance testing device of claim 1, wherein the primary loop insulation resistance test comprises a three-phase-to-ground insulation test, an inter-phase insulation test and a three-phase fracture insulation test, and the primary test switching interface is controlled by the comprehensive test control device to realize automatic switching of the three-phase-to-ground insulation test mode, the inter-phase insulation test mode, the three-phase fracture insulation test mode and the secondary loop insulation resistance test.
3. The insulation resistance testing device according to claim 1, wherein the comprehensive protection test control device stores the test data of previous times and generates a performance trend chart of the overhaul device to remind a user of replacing a damaged element in time.
4. The insulation resistance testing device according to any one of claims 1 to 3, wherein the testing device and the integrated test control device are independent modules, and the integrated test control device and the insulation resistance testing device are directly stacked after being separately transported to a testing site, and can be tested after being connected with a communication line without being connected by screws.
5. The insulation resistance testing device according to claim 4, wherein the testing device and the comprehensive test control device are modules which are not limited to 400mm wide, 400mm deep and 300mm high and are separately placed in a draw-bar box when not in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011270147.4A CN112462142A (en) | 2020-11-13 | 2020-11-13 | Insulation resistance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011270147.4A CN112462142A (en) | 2020-11-13 | 2020-11-13 | Insulation resistance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112462142A true CN112462142A (en) | 2021-03-09 |
Family
ID=74825783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011270147.4A Pending CN112462142A (en) | 2020-11-13 | 2020-11-13 | Insulation resistance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112462142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118011201A (en) * | 2024-04-10 | 2024-05-10 | 山东泰开电力开关有限公司 | Industrial frequency withstand voltage detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444542A (en) * | 2018-10-30 | 2019-03-08 | 国网山西省电力公司晋城供电公司 | A kind of fully automatic secondary insulating resistance of cable auxiliary test unit and its test method |
| CN109581216A (en) * | 2019-01-18 | 2019-04-05 | 阳江核电有限公司 | VD4 Medium voltage switch or circuit breaker all-around test stand and its dependency structure |
| CN110673028A (en) * | 2019-11-07 | 2020-01-10 | 广东电网有限责任公司 | Fault diagnosis device and method for 10kV vacuum circuit breaker |
| CN111736068A (en) * | 2020-06-24 | 2020-10-02 | 无锡中科电气设备有限公司 | Intelligent detection method and system for medium-voltage distribution board |
-
2020
- 2020-11-13 CN CN202011270147.4A patent/CN112462142A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444542A (en) * | 2018-10-30 | 2019-03-08 | 国网山西省电力公司晋城供电公司 | A kind of fully automatic secondary insulating resistance of cable auxiliary test unit and its test method |
| CN109581216A (en) * | 2019-01-18 | 2019-04-05 | 阳江核电有限公司 | VD4 Medium voltage switch or circuit breaker all-around test stand and its dependency structure |
| CN110673028A (en) * | 2019-11-07 | 2020-01-10 | 广东电网有限责任公司 | Fault diagnosis device and method for 10kV vacuum circuit breaker |
| CN111736068A (en) * | 2020-06-24 | 2020-10-02 | 无锡中科电气设备有限公司 | Intelligent detection method and system for medium-voltage distribution board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118011201A (en) * | 2024-04-10 | 2024-05-10 | 山东泰开电力开关有限公司 | Industrial frequency withstand voltage detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102253333B (en) | Life tester for alternating-current contactor and control method thereof | |
| CN109212351A (en) | A kind of electric car non-on-board charger automatic checkout system and method | |
| EP3309920A2 (en) | Method for hot-plugging, control device for hot-plugging, method and device for voltage balance | |
| CN103809116B (en) | A kind of short-circuit capability test system and its method | |
| CN104849581B (en) | Overcurrent overload protection device combines strike-machine and monitors system and method | |
| CN110928196B (en) | Double-star combined test energy simulation and monitoring system | |
| CN103412203A (en) | Motor variable-frequency driver aging test device and test method thereof | |
| CN104850474B (en) | A kind of hard disc of computer batch-testing device and test method | |
| CN112345960A (en) | Scene-type spare power automatic switching logic verification system and method | |
| CN112698135A (en) | Detection system and method for satellite loading test of satellite power supply and distribution system | |
| CN112462142A (en) | Insulation resistance testing device | |
| CN112462250A (en) | Switching characteristic comprehensive test device | |
| US20200203978A1 (en) | Battery Charging and Discharging Without Interface Removal | |
| CN204613737U (en) | Switch analogue means | |
| CN113589155A (en) | Testing device and method for high-voltage circuit breaker | |
| CN216449692U (en) | Contactor testing device | |
| KR101711705B1 (en) | Apparatus and method for controlling of ground switch | |
| CN111175597A (en) | Multifunctional transformer comprehensive experiment system and method | |
| CN204882817U (en) | General if converting circuit test system | |
| CN103439671B (en) | A kind of for can the test macro of inverter of parallel operation and method | |
| CN212410663U (en) | High-voltage electrical component test system | |
| CN216350968U (en) | Secondary voltage drop testing device | |
| CN216771840U (en) | Multichannel secondary cable insulation detection system | |
| CN208921844U (en) | A kind of direct current system branch testing tool | |
| CN221103062U (en) | Control device of insulation test platform of high-voltage switch equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220804 Address after: 298 Furong Zhong Er Road, Xishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Applicant after: WUXI ZHONGKE ELECTRIC EQUIPMENT Co.,Ltd. Address before: 298 Furong Zhong Er Road, Xishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Applicant before: WUXI ZHONGKE ELECTRIC EQUIPMENT Co.,Ltd. Applicant before: Shenzhen Union Clean Energy Research Institute |