CN204116545U - A kind of equal compression testing device of thyristor unit of converter valve - Google Patents
A kind of equal compression testing device of thyristor unit of converter valve Download PDFInfo
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- CN204116545U CN204116545U CN201420515214.8U CN201420515214U CN204116545U CN 204116545 U CN204116545 U CN 204116545U CN 201420515214 U CN201420515214 U CN 201420515214U CN 204116545 U CN204116545 U CN 204116545U
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Abstract
The utility model relates to a kind of equal compression testing device of thyristor unit of converter valve, belongs to technical field of direct current power transmission.Equal compression testing device of the present utility model comprises pressure regulation unit, voltage transformation unit and voltage measurement unit, the input end of pressure regulation unit is for connecting single phase industrial frequence power supply, output terminal is connected with the input end of voltage transformation unit, the output terminal of voltage transformation unit is for connecting thyristor cell to be tested, for thyristor cell to be tested provides test voltage, voltage measurement unit is connected in the output loop of voltage transformation unit, exports to the total voltage of thyristor cell to be tested and the voltage of each thyristor cell to be tested for testing voltage transformation unit.Equal compression testing device of the present utility model is stood erectly to connect to direct-current transmission converter and is detected all pressures performance of thyristor unit of converter valve and provide effective means, the long time stability of direct-current transmission converter valve thyristor cell is run and provides a favorable guarantee, create maximizing the benefits to current conversion station and provide condition.
Description
Technical field
The utility model relates to a kind of equal compression testing device of thyristor unit of converter valve, belongs to technical field of direct current power transmission.
Background technology
In D.C. high voltage transmission, high-voltage commutation valve thyristor has a wide range of applications.Directly all test cannot be pressed to thyristor cell in converter valve in current current conversion station site examining and repairing process, higher to all pressing coherence request in thyristor unit of converter valve actual moving process, must check during site examining and repairing whether all pressures situation of thyristor cell meets service requirement, common method is tested one by one the damping capacitor of thyristor cell damping circuit and damping resistance by multimeter, judges whether all pressures of thyristor cell meet the demands by calculating.
Adopt in this way, there is following drawback:
1, all pressure performance requirement of the converter valve unit long-time running in DC transmission system to thyristor cell is higher, because thyristor unit of converter valve is connected to valve tower, and be connected with the equipment such as change of current change or smoothing reactor, the impact by physical condition tested one by one by employing multimeter, is difficult to all pressures consistance accurately judging thyristor unit of converter valve;
2, the thyristor cell number at direct-current transmission converter station is all hundreds and thousands of, and adopt multimeter to test one by one and need will expend very large manpower and time, time lengthening directly affects the economic benefit at direct-current transmission converter station;
3, adopt multimeter test mode one by one, in test process, test man must enter body and enter to valve tower inner, and this is to the artificial damage probability increasing other components and parts of valve tower.
Utility model content
The purpose of this utility model is to provide a kind of equal compression testing device of thyristor unit of converter valve, cannot directly carry out the problem that thyristor unit of converter valve all presses test to solve direct-current transmission converter station site examining and repairing.
The utility model is for solving the problems of the technologies described above and providing a kind of equal compression testing device of thyristor unit of converter valve, this equal compression testing device comprises equal compression testing device and comprises pressure regulation unit, voltage transformation unit and voltage measurement unit, the input end of described pressure regulation unit is for connecting power frequency supply, output terminal is connected with the input end of voltage transformation unit, the output terminal of described voltage transformation unit is for connecting thyristor cell to be tested, for thyristor cell to be tested provides test voltage, described voltage measurement unit is connected in the output loop of voltage transformation unit, the total voltage of thyristor cell to be tested and the voltage of each thyristor cell to be tested is exported to for testing voltage transformation unit.
Described pressure regulation unit adopts single-phase electric pressure regulator, and the input end of this single-phase electric pressure regulator is connected to power frequency supply by isolating switch.
Described voltage transformation unit adopts single-phase isolating transformer, and the input end of this single-phase isolating transformer is connected with the output terminal of pressure regulation unit, and output terminal is used for thyristor cell to be tested provides test voltage.
Described voltage measurement unit comprises the low-voltage table being serially connected in voltage transformer (VT) in voltage transformation unit output loop and high pressure gauge and being connected to each thyristor two ends to be tested, described high pressure gauge exports to the total voltage of thyristor cell to be tested for testing voltage transformation unit, described low-voltage table is used for the corresponding voltage measuring each thyristor cell to be tested.
Described proving installation also comprises signal designation unit, and this signal designation unit comprises major loop break-make pilot lamp, and described major loop break-make pilot lamp is serially connected between power frequency supply and pressure regulation unit.
The beneficial effects of the utility model are: equal compression testing device of the present utility model comprises pressure regulation unit, voltage transformation unit and voltage measurement unit, the input end of pressure regulation unit is for connecting single phase industrial frequence power supply, output terminal is connected with the input end of voltage transformation unit, the output terminal of voltage transformation unit is for connecting thyristor cell to be tested, for thyristor cell to be tested provides test voltage, voltage measurement unit is connected in the output loop of voltage transformation unit, exports to the total voltage of thyristor cell to be tested and the voltage of each thyristor cell to be tested for testing voltage transformation unit.Equal compression testing device of the present utility model is stood erectly to connect to direct-current transmission converter and is detected all pressures performance of thyristor unit of converter valve and provide effective means, the long time stability of direct-current transmission converter valve thyristor cell is run and provides a favorable guarantee, create maximizing the benefits to current conversion station and provide condition.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the equal compression testing device of the utility model;
Fig. 2 is the circuit theory diagrams of pressure regulation part and transforming portion;
Fig. 3 is the circuit diagram of voltage measuring section;
Fig. 4 is the circuit theory diagrams of signal designation part.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
As shown in Figure 1, the equal compression testing device of thyristor unit of converter valve of the present utility model comprises pressure regulation unit, voltage transformation unit and voltage measurement unit.Wherein pressure regulation unit be for by single phase industrial frequence input voltage regulation become needed for voltage for transforming portion, as shown in Figure 2, pressure regulation unit adopts the single-phase electric pressure regulator T1 of a 220V/0-250V/2KVA, and the input end of single-phase electric pressure regulator T1 is connected to single phase industrial frequence power supply by the circuit breaker Q F of rated current 10A.Voltage transformation unit adopts a single-phase isolating transformer T2 of high no-load voltage ratio 250V/6000V/2KVA; the single-phase input end of isolating transformer T2 is connected with the output terminal of electric voltage regulator T1; for the output voltage of electric voltage regulator T1 is transformed into ac high-voltage, by the protective resistance R of 1k Ω High voltage output to tested thyristor unit of converter valve.
Voltage measurement unit comprises voltage transformer pt, high-precision high voltage Table V and the high precision low-voltage Table V 1-V15 for measuring each thyristor cell, voltage transformer pt and high-precision high voltage table are serially connected in the output terminal of pressure-control circuit, wherein the rated voltage of voltage transformer pt is the voltage of 6kV, high pressure gauge range is 0-6kV industrial frequency AC, the total voltage of tested brilliant lock unit is exported to the single-phase isolating transformer T2 of measurement, low-voltage Table V 1-V15 correspondence is connected to the two ends of corresponding tested thyristor cell, to measure the voltage of each tested thyristor cell, the range of V1-V15 high-accuracy voltage table is 0-400V industrial frequency AC.Ensure that the total voltage of all tested thyristor cell and the voltage of single-subject thyristor cell have individual intuitively comparison, accurately to judge all pressures behavior pattern of thyristor cell by two measurements of voltage measurement unit.
In order to all press at thyristor in test process as operator provides the signal designation of respective operations, proving installation of the present utility model also comprises signal designation unit, this signal designation unit comprises the break-make pilot lamp LD1 be serially connected in test major loop, boosting pilot lamp LD2 and step-down pilot lamp LD3, close circuit breaker Q F, pilot lamp LD1 lights, press boost button SB1, booster relay S connects, boosting pilot lamp LD2 lights, press step-down button SB2, turndown relay J connects, step-down pilot lamp LD3 lights, described signal lamp provides the signal designation of respective operations to operator, with the validity of determination operation.
When all pressing test to tested thyristor cell, all p-wire correspondences of proving installation are connected to tested thyristor cell, the number according to thyristor cell selects the radical of p-wire and the number of voltage table; Then be connected with 220V AC power by proving installation input end, close circuit breaker Q F, and now major loop connection pilot lamp LD1 lights; Press boost button SB1, start boosting, observe the registration above the voltage table V1-V15 exporting total voltage measuring voltage Table V and each tested thyristor cell of correspondence; When exporting total voltage and reaching required trial voltage, whether the voltage readings above record and more each tested thyristor cell meets all presses coherence request, be completed, press step-down button SB2, step-down pilot lamp LD3 lights, after voltage drops to zero, cut-off breaker QF, a thyristor unit of converter valve all pressures tested.
Claims (5)
1. the equal compression testing device of a thyristor unit of converter valve, it is characterized in that, this equal compression testing device comprises equal compression testing device and comprises pressure regulation unit, voltage transformation unit and voltage measurement unit, the input end of described pressure regulation unit is for connecting power frequency supply, output terminal is connected with the input end of voltage transformation unit, the output terminal of described voltage transformation unit is for connecting thyristor cell to be tested, for thyristor cell to be tested provides test voltage, described voltage measurement unit is connected in the output loop of voltage transformation unit, the total voltage of thyristor cell to be tested and the voltage of each thyristor cell to be tested is exported to for testing voltage transformation unit.
2. the equal compression testing device of thyristor unit of converter valve according to claim 1, is characterized in that, described pressure regulation unit adopts single-phase electric pressure regulator, and the input end of this single-phase electric pressure regulator is connected to power frequency supply by isolating switch.
3. the equal compression testing device of thyristor unit of converter valve according to claim 1, it is characterized in that, described voltage transformation unit adopts single-phase isolating transformer, the input end of this single-phase isolating transformer is connected with the output terminal of pressure regulation unit, and output terminal is used for thyristor cell to be tested provides test voltage.
4. the equal compression testing device of thyristor unit of converter valve according to claim 1, it is characterized in that, described voltage measurement unit comprises the low-voltage table being serially connected in voltage transformer (VT) in voltage transformation unit output loop and high pressure gauge and being connected to each thyristor two ends to be tested, described high pressure gauge exports to the total voltage of thyristor cell to be tested for testing voltage transformation unit, described low-voltage table is used for the corresponding voltage measuring each thyristor cell to be tested.
5. the equal compression testing device of the thyristor unit of converter valve according to any one of claim 1-4, it is characterized in that, described proving installation also comprises signal designation unit, this signal designation unit comprises major loop break-make pilot lamp, and described major loop break-make pilot lamp is serially connected between power frequency supply and pressure regulation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515214.8U CN204116545U (en) | 2014-09-04 | 2014-09-04 | A kind of equal compression testing device of thyristor unit of converter valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515214.8U CN204116545U (en) | 2014-09-04 | 2014-09-04 | A kind of equal compression testing device of thyristor unit of converter valve |
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| CN204116545U true CN204116545U (en) | 2015-01-21 |
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| CN201420515214.8U Active CN204116545U (en) | 2014-09-04 | 2014-09-04 | A kind of equal compression testing device of thyristor unit of converter valve |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703481A (en) * | 2016-03-03 | 2016-06-22 | 南京南瑞继保电气有限公司 | Converter valve voltage-sharing state consistency statistics method |
| CN108089118A (en) * | 2017-11-01 | 2018-05-29 | 国网河南省电力公司检修公司 | High voltage direct current converter valve thyristor component presses loop parameter Simple measurement device |
| CN109444620A (en) * | 2019-01-02 | 2019-03-08 | 国家电网有限公司 | DC converter valve intelligence partial pressure compensation detection system |
| CN110988645A (en) * | 2019-12-20 | 2020-04-10 | 西安西电电力***有限公司 | Thyristor level voltage-sharing test method and device |
| CN113358994A (en) * | 2021-05-18 | 2021-09-07 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Thyristor test device and method |
| CN113514749A (en) * | 2021-07-07 | 2021-10-19 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Thyristor voltage-sharing detection device and detection method |
| CN115792552A (en) * | 2022-11-11 | 2023-03-14 | 中国南方电网有限责任公司超高压输电公司广州局 | Thyristor detection device and method |
-
2014
- 2014-09-04 CN CN201420515214.8U patent/CN204116545U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703481A (en) * | 2016-03-03 | 2016-06-22 | 南京南瑞继保电气有限公司 | Converter valve voltage-sharing state consistency statistics method |
| CN105703481B (en) * | 2016-03-03 | 2018-03-30 | 南京南瑞继保电气有限公司 | A kind of equal pressure condition uniformity statistical method of converter valve |
| CN108089118A (en) * | 2017-11-01 | 2018-05-29 | 国网河南省电力公司检修公司 | High voltage direct current converter valve thyristor component presses loop parameter Simple measurement device |
| CN109444620A (en) * | 2019-01-02 | 2019-03-08 | 国家电网有限公司 | DC converter valve intelligence partial pressure compensation detection system |
| CN110988645A (en) * | 2019-12-20 | 2020-04-10 | 西安西电电力***有限公司 | Thyristor level voltage-sharing test method and device |
| CN113358994A (en) * | 2021-05-18 | 2021-09-07 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Thyristor test device and method |
| CN113514749A (en) * | 2021-07-07 | 2021-10-19 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Thyristor voltage-sharing detection device and detection method |
| CN115792552A (en) * | 2022-11-11 | 2023-03-14 | 中国南方电网有限责任公司超高压输电公司广州局 | Thyristor detection device and method |
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