CN203965532U - Power frequency energy tolerance test device - Google Patents
Power frequency energy tolerance test device Download PDFInfo
- Publication number
- CN203965532U CN203965532U CN201420198360.2U CN201420198360U CN203965532U CN 203965532 U CN203965532 U CN 203965532U CN 201420198360 U CN201420198360 U CN 201420198360U CN 203965532 U CN203965532 U CN 203965532U
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- China
- Prior art keywords
- switch
- inductance
- capacitor
- voltage divider
- power frequency
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- 239000003990 capacitor Substances 0.000 claims abstract description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- 239000010703 silicon Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a power frequency energy tolerance test device, which comprises a power supply, a transformer, first switch, the high-pressure silicon stack, a capacitor, first divider, the second switch, the inductance, transfer ripples inductance, the third switch, the second divider, the article tested, the shunt, measuring unit, the power is connected through the primary side of first switch with the transformer, the vice limit and the high-pressure silicon stack of transformer are connected, constitute the return circuit that charges to the capacitor, the capacitor passes through the second switch and connects in parallel with the inductance, the inductance is connected with the article tested through transferring ripples inductance and third switch, form the return circuit that discharges to the article tested, first divider is parallelly connected with the capacitor, the second divider is parallelly connected with the article tested, the shunt is established ties with the article tested. The utility model discloses the problem of power frequency energy tolerance test of MOV resistance card is mended to the cluster under power frequency voltage is solved to the test device, provides powerful experimental data and assurance for MOV's reliable operation.
Description
Technical field
The utility model relates to a kind of power frequency energy resistance test device, be particularly related to a kind of metal oxide pressure-limiting device (Metal Oxide Voltage Limiter, be called for short MOV) with the power frequency energy resistance test device of resistor disc, belong to the innovative technology of power frequency energy resistance test device.
Background technology
Along with the development of China's electric utility, transmission line capability and distance constantly increase, and adopt the flexible transmission of series compensation to obtain developing rapidly.MOV is the important protective device that string is mended device, mends widespread use in device at string.The capability study of the power frequency energy tolerance of MOV under its operating condition is very important to the operational reliability of MOV.At present, the ratio unit (resistor disc) of MOV has only carried out rectangular energy resistance test, also cannot the tolerance of the power frequency energy under its operating condition test the ratio unit (resistor disc) of MOV.
Summary of the invention
The purpose of this utility model is to provide a kind of power frequency energy resistance test device, and the utility model solves the problem of the power frequency energy resistance test of string benefit MOV resistor disc under power-frequency voltage, for the reliability service of MOV provides strong test figure and guarantee.
For reaching above object, the utility model takes following technical scheme to be achieved:
Power frequency energy resistance test device of the present utility model, include power supply, transformer, the first switch, high voltage silicon rectifier stack, capacitor, the first voltage divider, second switch, inductance, harmonic inductance, the 3rd switch, the second voltage divider, test product, shunt, measuring unit, power supply is connected with the former limit of transformer by the first switch, the secondary of transformer is connected with high voltage silicon rectifier stack, the charge circuit of composition to capacitor, capacitor is by second switch and inductance in parallel, inductance is connected with test product by harmonic inductance and the 3rd switch, form the discharge loop to test product, the first voltage divider and Parallel-connected Capacitor, the second voltage divider is in parallel with test product, shunt is connected with test product.
The utility model, owing to adopting charge circuit to charge to capacitor, adopts capacitor and to inductive discharge, produces the structure of series resonance; Control the power-frequency voltage time being applied on test product by switch; By voltage divider and shunt, the voltage and current waveform parameter of condenser voltage and test product is collected in measuring unit.This device has been realized the problem of the power frequency energy resistance test of string benefit MOV resistor disc under power-frequency voltage.The utility model is a kind of power frequency energy resistance test device easy to use.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
With reference to Fig. 1, power frequency energy resistance test device of the present utility model, include power supply 1, transformer 2, the first switch 3, high voltage silicon rectifier stack 4, capacitor 5, the first voltage divider 6, second switch 7, inductance 8, harmonic inductance 9, the 3rd switch 10, the second voltage divider 11, test product 12, shunt 13, measuring unit 14, power supply 1 is connected with the former limit of transformer 2 by the first switch 3, the secondary of transformer 2 is connected with high voltage silicon rectifier stack 4, the charge circuit of composition to capacitor 5, capacitor 5 is in parallel with inductance 8 by second switch 7, inductance 8 is connected with test product 12 by harmonic inductance 9 and the 3rd switch 10, form the discharge loop to test product 12, the first voltage divider 6 is in parallel with capacitor 5, be used for measuring the charging voltage of capacitor 5, the second voltage divider 11 is in parallel with test product 12, be used for measuring the voltage of test product 12, shunt 13 is connected with test product 12, be used for measuring the electric current of test product 12.
In the present embodiment, above-mentioned measuring unit 14 utilizes capture card to gather respectively the voltage waveform of the first voltage divider 6, the second voltage divider 11 and shunt 13.Above-mentioned the first voltage divider 6 and the second voltage divider 11 adopt capacitive divider or resitstance voltage divider.Above-mentioned shunt 13 adopts divertor or current mutual inductor coil.
When the utility model carries out power frequency energy resistance test, the first switch 3 and the 3rd switch 10 first close a floodgate, charge circuit charges to capacitor 5, make again second switch 7 close a floodgate, capacitor 5 and inductance 8 is discharged, produce series resonance, the power-frequency voltage producing on inductance 8 is applied on test product 7 by harmonic inductance 9 and the 3rd switch 10, by adjusting the opening time of the 3rd switch 10, control the power-frequency voltage time being applied on test product, by the first voltage divider 6, the second voltage divider 11 and shunt 13 collect the voltage and current waveform parameter of the voltage of capacitor 5 and test product 12 in measuring unit 14, measuring unit 14 possesses communication interface simultaneously, measurement data can be converted to light signal transmits, the measuring-signal of measuring unit (14) can pass through communication cable while transmission, signal transmission is carried out in optical fiber and wireless telecommunications.
Claims (4)
1. a power frequency energy resistance test device, it is characterized in that including power supply (1), transformer (2), the first switch (3), high voltage silicon rectifier stack (4), capacitor (5), the first voltage divider (6), second switch (7), inductance (8), harmonic inductance (9), the 3rd switch (10), the second voltage divider (11), test product (12), shunt (13), measuring unit (14), power supply (1) is connected with the former limit of transformer (2) by the first switch (3), the secondary of transformer (2) is connected with high voltage silicon rectifier stack (4), the charge circuit of composition to capacitor (5), capacitor (5) is in parallel with inductance (8) by second switch (7), inductance (8) is connected with test product (12) by harmonic inductance (9) and the 3rd switch (10), form the discharge loop to test product (12), the first voltage divider (6) is in parallel with capacitor (5), the second voltage divider (11) is in parallel with test product (12), shunt (13) is connected with test product (12).
2. power frequency energy resistance test device according to claim 1, is characterized in that above-mentioned measuring unit (14) utilizes capture card to gather respectively the voltage waveform of the first voltage divider (6), the second voltage divider (11) and shunt (13).
3. power frequency energy resistance test device according to claim 1, is characterized in that above-mentioned the first voltage divider (6) and the second voltage divider (11) adopt capacitive divider or resitstance voltage divider.
4. power frequency energy resistance test device according to claim 1, is characterized in that above-mentioned shunt (13) adopts divertor or current mutual inductor coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198360.2U CN203965532U (en) | 2014-04-23 | 2014-04-23 | Power frequency energy tolerance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198360.2U CN203965532U (en) | 2014-04-23 | 2014-04-23 | Power frequency energy tolerance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203965532U true CN203965532U (en) | 2014-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420198360.2U Expired - Fee Related CN203965532U (en) | 2014-04-23 | 2014-04-23 | Power frequency energy tolerance test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203965532U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820149A (en) * | 2015-05-05 | 2015-08-05 | 南方电网科学研究院有限责任公司 | Test loop of action load of lightning arrester proportional unit |
| CN110831278A (en) * | 2018-08-07 | 2020-02-21 | 通用电气照明解决方案有限公司 | Driver for LED device and LED system |
| CN111722065A (en) * | 2020-05-21 | 2020-09-29 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Limit energy tolerance test method for resistor disc of lightning arrester of direct current transfer switch |
| CN113791317A (en) * | 2021-08-30 | 2021-12-14 | 中国南方电网有限责任公司超高压输电公司南宁局 | Metal oxide variable resistance test circuit, system and method |
-
2014
- 2014-04-23 CN CN201420198360.2U patent/CN203965532U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820149A (en) * | 2015-05-05 | 2015-08-05 | 南方电网科学研究院有限责任公司 | Test loop of action load of lightning arrester proportional unit |
| CN110831278A (en) * | 2018-08-07 | 2020-02-21 | 通用电气照明解决方案有限公司 | Driver for LED device and LED system |
| CN111722065A (en) * | 2020-05-21 | 2020-09-29 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Limit energy tolerance test method for resistor disc of lightning arrester of direct current transfer switch |
| CN111722065B (en) * | 2020-05-21 | 2021-08-31 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Limit energy tolerance test method for resistor disc of lightning arrester of direct current transfer switch |
| CN113791317A (en) * | 2021-08-30 | 2021-12-14 | 中国南方电网有限责任公司超高压输电公司南宁局 | Metal oxide variable resistance test circuit, system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |