CN104331060A - Circuit breaker phase selection controller phase selection switch-on and switch-off precision test system and method - Google Patents
Circuit breaker phase selection controller phase selection switch-on and switch-off precision test system and method Download PDFInfo
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- CN104331060A CN104331060A CN201410376387.0A CN201410376387A CN104331060A CN 104331060 A CN104331060 A CN 104331060A CN 201410376387 A CN201410376387 A CN 201410376387A CN 104331060 A CN104331060 A CN 104331060A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a circuit breaker phase selection controller phase selection switch-on and switch-off precision test system and method. Test is carried out under the condition of full digitalization input, so that test precision of a phase selection circuit breaker controller is improved, basis is provided for improving phase selection switch-on and switch-off precision of a phase selection circuit breaker, inrush current and overvoltage during switch-on and switch-off operation are reduced, power quality and system stability are improved, service life and maintenance period of an electric appliance are prolonged, transient process in the system is reduced, and breaking capability is improved.
Description
Technical field
The present invention relates to a kind of phase-controlled device divide-shut brake accuracy test system and method for isolating switch.
Background technology
Isolating switch is in opening-closing capacitor bank and Reactor banks process, the superpotential produced and shove to produce electric system and power equipment and impact is eliminate in circuit-breaker switching on-off operating process to produce to shove and superpotential a kind of effective ways by the phase selection operation of isolating switch.Phase selection isolating switch can be selected phase place at voltage and carry out breaking-closing operating, reduce that breaking-closing operating process produces shove and superpotential to the impact of power equipment and system, improve the stability of the quality of power supply and system, extend serviceable life and the time between overhauls(TBO) of electrical equipment, the transient process in shortening system.Phased isolating switch realizes phase selection and operates the option principle precision that the key controlled is intelligent controller, under the development of intelligent grid, be the foundation that phased isolating switch phase-controlled device divide-shut brake precision judges based on the test of controller phase selection precision under totally digitilized initial conditions.
Summary of the invention
The object of this invention is to provide a kind of phase-controlled device divide-shut brake accuracy test system of isolating switch, to test the option principle precision of phased isolating switch phase-controlled device, provide a kind of method of testing using this system simultaneously.
In order to realize above object, the technical solution adopted in the present invention is: a kind of phase-controlled device divide-shut brake accuracy test system of isolating switch, and this system comprises:
Relay-protection tester, for sending three-phase voltage, current signal, and receives merge cells by signal, and three-phase voltage signal is connected to oscillograph as reference phase voltage signal;
Command generator, for sending separating brake or closing operation instruction;
Gps clock source, for providing synchronizing signal for phase-controlled device;
Oscillograph, for receiving display reference phase voltage signal and the separating brake that sends of phase-controlled device or combined floodgate trigger pip.
The technical scheme that the phase-controlled device divide-shut brake method for testing precision of isolating switch of the present invention adopts is: a kind of phase-controlled device divide-shut brake method for testing precision of isolating switch, comprises the steps:
(1) three-phase voltage and current signal are received merge cells, and three-phase voltage signal is connected to oscillograph as reference phase voltage signal;
(2) merge cells is sampled to the three-phase voltage of access and current signal, and outputs to phase-controlled device; Phase-controlled device also accesses the clock sync signal in gps clock source simultaneously;
(3) when phase-controlled device receives separating brake or closing operation order, export trigger pip according to mains frequency and instruction due in, start phase selection or separating brake;
(4) trigger pip is input to oscillograph, and the reference phase voltage signal of this trigger pip and input is compared, thus obtain the option principle precision of phase-controlled device.
Three-phase voltage in described step (1) and current signal are sent by relay-protection tester.
Merge cells by sampled signal with SV formatted output to phase-controlled device.
The clock sync signal in gps clock source with PTP formatted output to phase-controlled device.
The separating brake that phase-controlled device is received or closing operation order are GOOSE signal.
The phase-controlled device option principle accuracy test system and method for isolating switch of the present invention is tested under totally digitilized initial conditions, improve the measuring accuracy of phase selection breaker controller, for the option principle precision improving phase selection isolating switch provides foundation, shoving and superpotential during to reduce breaking-closing operating, improve the stability of the quality of power supply and system, extend serviceable life and the time between overhauls(TBO) of electrical equipment, the transient process in shortening system, improve breaking capacity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the phase-controlled device divide-shut brake accuracy test system of isolating switch of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is described further.
Be illustrated in figure 1 the structural representation of the phase-controlled device divide-shut brake accuracy test system of isolating switch of the present invention, as seen from the figure, this system comprises: relay-protection tester, for sending three-phase voltage, current signal, and signal is received merge cells, and three-phase voltage signal is connected to oscillograph as reference phase voltage signal; Command generator, for sending separating brake or closing operation instruction; Gps clock source, for providing synchronizing signal for phase-controlled device; Oscillograph, for receiving display reference phase voltage signal and the separating brake that sends of phase-controlled device or combined floodgate trigger pip.
Present invention also offers a kind of phase-controlled device divide-shut brake method for testing precision of isolating switch, comprise the steps:
(1) three-phase voltage sent by relay-protection tester and current signal receive merge cells, and three-phase voltage signal is connected to digital oscilloscope as reference phase voltage signal;
(2) merge cells is sampled to the three-phase voltage of access and current analog signal, and sample frequency is 10kHz, outputs to phase-controlled device with IEC618509-2LE form composition SV frame; Phase-controlled device also accesses the clock sync signal in gps clock source simultaneously, and the concrete synchronizing signal of what form that adopts is determined by the merge cells selected, and what the present embodiment gps clock source exported is PTP message;
(3) phased isolating switch phase-controlled device also should access the GOOSE signal of band splitting or integrating lock instruction, when phase-controlled device receives separating brake or closing operation order, phase-controlled device exports trigger pip according to mains frequency and instruction due in, starts phase selection or separating brake;
(4) above-mentioned trigger pip is input to digital oscilloscope, and the reference phase voltage signal of this trigger pip and input is compared, the time phase of trigger pip can be observed out from oscillograph, thus obtain the option principle precision of phase-controlled device.
Phase-controlled device divide-shut brake method for testing precision of the present invention adopts SV mode to access at line voltage, electric current, the instruction of splitting or integrating lock adopts GOOSE mode to access, under the totally digitilized initial conditions that time synchronized adopts PTP mode to access, to the test that the option principle precision of phased isolating switch phase-controlled system is carried out, for phased isolating switch phase-controlled device divide-shut brake precision judges to provide foundation.
Above embodiment only understands core concept of the present invention for helping; the present invention can not be limited with this; for those skilled in the art; every according to thought of the present invention; the present invention is modified or equivalent replacement; any change done in specific embodiments and applications, all should be included within protection scope of the present invention.
Claims (6)
1. a phase-controlled device divide-shut brake accuracy test system for isolating switch, it is characterized in that, this system comprises:
Relay-protection tester, for sending three-phase voltage, current signal, and receives merge cells by signal, and three-phase voltage signal is connected to oscillograph as reference phase voltage signal;
Command generator, for sending separating brake or closing operation instruction;
Gps clock source, for providing synchronizing signal for phase-controlled device;
Oscillograph, for receiving display reference phase voltage signal and the separating brake that sends of phase-controlled device or combined floodgate trigger pip.
2. a phase-controlled device divide-shut brake method for testing precision for isolating switch, is characterized in that, comprise the steps:
(1) three-phase voltage and current signal are received merge cells, and three-phase voltage signal is connected to oscillograph as reference phase voltage signal;
(2) merge cells is sampled to the three-phase voltage of access and current signal, and outputs to phase-controlled device; Phase-controlled device also accesses the clock sync signal in gps clock source simultaneously;
(3) when phase-controlled device receives separating brake or closing operation order, export trigger pip according to mains frequency and instruction due in, start phase selection or separating brake;
(4) trigger pip is input to oscillograph, and the reference phase voltage signal of this trigger pip and input is compared, thus obtain the option principle precision of phase-controlled device.
3. the phase-controlled device divide-shut brake method for testing precision of isolating switch according to claim 2, is characterized in that: the three-phase voltage in described step (1) and current signal are sent by relay-protection tester.
4. the phase-controlled device divide-shut brake method for testing precision of isolating switch according to claim 2, is characterized in that: merge cells by sampled signal with SV formatted output to phase-controlled device.
5. the phase-controlled device divide-shut brake method for testing precision of isolating switch according to claim 2, is characterized in that: the clock sync signal in gps clock source with PTP formatted output to phase-controlled device.
6. the phase-controlled device divide-shut brake method for testing precision of isolating switch according to claim 2, is characterized in that: the separating brake that phase-controlled device is received or closing operation order are GOOSE signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410376387.0A CN104331060B (en) | 2014-08-01 | 2014-08-01 | A kind of phase-controlled device option principle method for testing precision of breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410376387.0A CN104331060B (en) | 2014-08-01 | 2014-08-01 | A kind of phase-controlled device option principle method for testing precision of breaker |
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| CN104331060A true CN104331060A (en) | 2015-02-04 |
| CN104331060B CN104331060B (en) | 2017-07-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021868A (en) * | 2015-07-20 | 2015-11-04 | 国家电网公司 | Simple method for measuring high-voltage circuit breaker switching-on overvoltage on site |
| CN112014676A (en) * | 2020-09-11 | 2020-12-01 | 西安高压电器研究院有限责任公司 | Switching test device for capacitor device type test |
| CN112067951A (en) * | 2020-09-01 | 2020-12-11 | 国网浙江省电力有限公司电力科学研究院 | Online detection method and system for phase selection, disconnection and heavy breakdown of vacuum switch |
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| CN203191816U (en) * | 2013-03-26 | 2013-09-11 | 国家电网公司 | Test system for automatic control equipment of power distribution network |
| CN103792508A (en) * | 2014-01-27 | 2014-05-14 | 国家电网公司 | Error test system and method for digitized metering device |
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| CN101825672A (en) * | 2010-05-13 | 2010-09-08 | 四川电力试验研究院 | Phase selection switching-in tester with breaker pre-breakdown model |
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| CN105021868A (en) * | 2015-07-20 | 2015-11-04 | 国家电网公司 | Simple method for measuring high-voltage circuit breaker switching-on overvoltage on site |
| CN112067951A (en) * | 2020-09-01 | 2020-12-11 | 国网浙江省电力有限公司电力科学研究院 | Online detection method and system for phase selection, disconnection and heavy breakdown of vacuum switch |
| CN112014676A (en) * | 2020-09-11 | 2020-12-01 | 西安高压电器研究院有限责任公司 | Switching test device for capacitor device type test |
| CN112014676B (en) * | 2020-09-11 | 2023-10-13 | 西安高压电器研究院股份有限公司 | Switching test device for capacitor device type test |
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| CN104331060B (en) | 2017-07-07 |
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