CN205665584U - Extra -high voltage station circuit breaker controlling means's in same term calibration equipment - Google Patents
Extra -high voltage station circuit breaker controlling means's in same term calibration equipment Download PDFInfo
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- CN205665584U CN205665584U CN201620578834.5U CN201620578834U CN205665584U CN 205665584 U CN205665584 U CN 205665584U CN 201620578834 U CN201620578834 U CN 201620578834U CN 205665584 U CN205665584 U CN 205665584U
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- chopper
- same period
- phase
- controls
- low anti
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- 238000012360 testing method Methods 0.000 claims abstract description 17
- 230000009191 jumping Effects 0.000 claims description 11
- 238000012795 verification Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract 1
- 238000011017 operating method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The utility model discloses an extra -high voltage station circuit breaker controlling means's in same term calibration equipment, mainly include measurement and control device, the same period / the non - select switch of switching in the same term, relay protection three -phase tester, circuit breaker controlling means in the same term, fault oscillograph, low anti circuit breaker and secondary circuit. The utility model discloses aforementioned calibration equipment's method of calibration is still provided. The utility model discloses a scene is built test model, is carried out corresponding operating method to an on -the -spot difficult problem to circuit breaker controlling means debugging in the same term, examination has effectively been solved to circuit breaker controlling means's in the same term debugging and examination to the completion.
Description
Technical field
This utility model belongs to extra-high voltage power transmission and distribution technical field, is specifically related to a kind of extra-high voltage station chopper and controls the same period
The calibration equipment of device.
Background technology
As it is shown in figure 1, existing extra-high voltage station owner's low pressure side is commonly configured with 1 group of reactor 1112L in parallel, this reactance
Device 1112L uses star-star connection, and is the deficiency making up capacity, is often composed in series by two reactors.Therein low anti-
Chopper 1112 uses split-phase operating mechanism.
Due to the needs maintaining reactive balance and suppression light hours busbar voltage to raise, need by backstage remote control low anti-
The mode of chopper carries out the grouping switching of low anti-(low-pressure side reactor), in actual motion, grouping switching related frequency.Cause
For low anti-energy storage effect, and every compatible amount is relatively large, thus low anti-excision may to produce bigger transient state the most electric
Pressure or overcurrent.These transient voltages, the amplitude of electric current depend on the phase place occurred during low anti-chopper opening operation.In routine
Breaker operator in, each opening operation occur phase place be random.This means inevitably the most unfavorable
Phase place on there is the opening operation of chopper, it is impossible to effectively control transient overvoltage, overcurrent.Accordingly, it would be desirable to configuration is disconnected
Road device controls device the same period, enables to be controlled the disconnection moment of low anti-chopper, grasps according to predetermined phase place
Make, effectively to eliminate the transient overvoltage of low anti-generation, overcurrent when chopper disconnects.
Chopper controls device the same period, for controlling the opening operation of main transformer low-pressure side reactor, to suppress low anti-disconnection
The transient overvoltage of generation, overcurrent, improve the quality of power supply.But, chopper is controlled to the school of device action characteristic the same period
Testing, scene had not both had corresponding assay device, did not had the test method that can follow yet.
Utility model content
The purpose of this utility model is to provide a kind of extra-high voltage station chopper and controls the calibration equipment of device the same period, by taking
Build test model, perform corresponding operation, thus complete chopper is controlled the same period debugging and the examination of device.
A kind of extra-high voltage station of the present utility model chopper controls the calibration equipment of device the same period, mainly includes that observing and controlling fills
Put, the same period/non-synchronous switching selection switch, relay protection three-phase tester, chopper control device the same period, fault oscillograph,
Low anti-chopper and secondary circuit；Measure and control device includes observing and controlling screen；
Relay protection three-phase tester is for providing the three-phase forward-order current needed for verification test and reference voltage, and three-phase is just
Sequence electric current seals in low anti-chopper after chopper controls device, fault oscillograph the same period, in order to monitor opening of Duan Dikang road device
The disconnected moment；Reference voltage is used for providing benchmark zero point；
Measure and control device be used for sending hands jump/distant jump order, control chopper and control the separating brake of device the same period, simultaneously hands jump/
Distant jumping is ordered as switching value startup separator oscillograph；
After considering expection operating time of chopper and meeting some requirements, chopper control the same period device send with
Phase separating brake order, so that low anti-chopper performs opening operation in suitable phase place；
When each low anti-chopper disconnects, fault oscillograph record corresponding electric current, voltage waveform and each timing node
Data.
The 110kV chopper that low anti-chopper uses ABB AB to produce；Chopper controls device and use ABB AB the same period
The F236 chopper produced controls device the same period.
This utility model is built test model by scene, is performed corresponding operational approach, thus completes chopper same
Phase controls debugging and the examination of device, efficiently solves the on-the-spot difficult problem that chopper controls the same period device debugging, examination.
Accompanying drawing explanation
Fig. 1 is main transformer low-pressure side system wiring schematic diagram in prior art.
Fig. 2 is calibration equipment schematic diagram of the present utility model.
Fig. 3 is the schematic diagram that chopper controls device the same period.
Fig. 4 is resistant to the action timing diagram of chopper.
Fig. 5 is A phase breaker actuation time diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail:
As in figure 2 it is shown, a kind of extra-high voltage station of the present utility model chopper controls the calibration equipment of device the same period, mainly wrap
Include measure and control device, the same period/non-synchronous switching selection switch, relay protection three-phase tester, chopper control device, fault the same period
Oscillograph, low anti-chopper and secondary circuit.Wherein, measure and control device includes observing and controlling screen.
Relay protection three-phase tester is for providing the three-phase forward-order current needed for verification test and reference voltage, and three-phase is just
Sequence electric current seals in low anti-chopper after chopper controls device, fault oscillograph the same period, in order to monitor opening of Duan Dikang road device
The disconnected moment；Reference voltage is used for providing benchmark zero point.
Measure and control device be used for sending hands jump/distant jump order, control chopper and control the separating brake of device the same period, simultaneously hands jump/
Distant jumping is ordered as switching value startup separator oscillograph.
After considering expection operating time of low anti-chopper and meeting some requirements, chopper controls device and send out the same period
Go out the separating brake order same period, so that low anti-chopper performs opening operation in suitable phase place.
When each low anti-chopper disconnects, fault oscillograph record corresponding electric current, voltage waveform and each timing node
Data.These data can be used in analyzing, it is the most correct to judge that chopper controls device action the same period.
Below in conjunction with the accompanying drawings 3, the operation principle that first chopper controls the same period device explains.As depicted,
Chopper controls the secondary current signal of device the same period and takes from circuit breaker electric current transformer CT, is used for detecting the low anti-chopper of supervision
Cut-off situation, creating re-breakdown phenomenon if cut-off, extending the arc time the most accordingly, thus adjust cut-offfing result
Whole.A phase, B phase voltage signal take from the 110kV bus-bar potential transformer PT of low anti-circuit breaker electric source, form line voltage and are used as
The reference voltage of device.When chopper control the same period device receive the hands of arrival measure and control device jump/distant jump order time, through the same period/
Enter chopper after non-synchronous switching switch and control the microprocessor of device the same period, microprocessor when reference voltage zero crossing,
Open clock.
Low anti-chopper is connected in the trip(ping) circuit in control box.Consider the expection operating time of low anti-chopper, when
After regular hour in past, chopper controls device the same period and sends the separating brake order same period to the trip(ping) circuit of control box, so that
Low anti-chopper performs opening operation in suitable phase place.Wherein, this specific time by microprocessor according to input electricity
Stream, voltage sample data and the result of earlier executed operation, and (as electric in operated to ambient temperature and another one external parameter
Compensation device relay actuation time when source voltage reduces) compensation determine.
In conjunction with accompanying drawing 4,5, an embodiment of the present utility model will be described in detail as follows.
Specifically, the low anti-chopper in embodiment uses the 110kV chopper that ABB AB produces.The chopper control same period
The F236 chopper that device processed uses ABB AB to produce controls device the same period.Wherein fault oscillograph uses power system general
Fault oscillograph, the separating brake order for startup separator oscillograph accesses its switching value passage 24, and three-phase current accesses fault
The current channel 29,30,31 that oscillograph is standby, reference voltage accesses standby voltage channel 49.KK on observing and controlling screen controls
Switch sends hands and jumps/distant jumping order.
As shown in Figure 4, control the same period after device receives jumping in one's hands/distant jumping order at chopper, device judgment standard electricity
Pressure Uab is stably rear (about 100ms), on the basis of certain zero crossing of reference voltage Uab, and the mutually the lowest anti-chopper of delay tripping.
Owing to reactor is pure inductive load, 90 degree of phase voltage phase place leading phase electric current, so reference voltage advanced A, B, C three-phase respectively
Phase current electrical angle 120 degree, 240 degree, 180 degree.Before the lowest anti-chopper disconnects according to plan, reference voltage zero crossing is to immediately
Time interval Delay1 between the current zero-crossing point, A, B, C three-phase is respectively 6.7ms, 13.3ms, 10ms.
Owing to chopper controls the ABB chopper of device action the same period, its A phase from the time of arc extinguishing start to finish is
9.1mS, in order to allow at the end of A phase arc extinguishing time electric current at lower half cycle still zero crossing, therefore A phase separating brake outlet
Time, the time delay of Delay2, i.e. 0.9ms need to be added.In like manner, B phase, C phase quenching time are respectively 8.7ms, 7ms, so B phase, C phase
The time of separating brake outlet adds the time delay of 1.3ms, 3ms length respectively.At the end of the lowest anti-breaker open operation, electric current still exists
The zero crossing of lower half cycle, it is possible to obtain maximum safety, to resist resume combustion and repeated breakdown odds.
As a example by A phase chopper, its movement time as it is shown in figure 5, wherein Delay1 be 6.7ms, Delay2 be 0.9ms.
So A phase chopper is when reference voltage zero crossing 7.6ms, tripping A phase chopper.So, B phase chopper, C phase chopper divide
Not when reference voltage zero crossing 14.6ms, 13ms, the chopper of tripping each place phase.
Concrete method of calibration based on aforementioned calibration equipment, comprises the following steps:
(1) same period/non-synchronous switching selection switch is switched to the position same period；
(2) three-phase current needed for relay protection three-phase tester output test and reference voltage, three-phase current is set to
Forward-order current, amplitude 0.5A, reference voltage amplitude 57.73V, 120 degree of advanced A phase current；
(3) KK on operation observing and controlling screen controls switch, sends hands and jumps/distant jumping order；
(4) chopper controls device reception hands jumping/distant jumping order the same period, sends the separating brake order same period, performs low anti-open circuit
Device opening operation；
(5) fault oscillograph start, record each low anti-chopper disconnect time voltage, current waveform and each time segmentum intercalaris
Point；
(6) fault oscillograph waveform is checked, by the time of reference voltage cycle zero crossing, with three-phase current Ia, Ib, Ic
The time of cut-off point, calculate chopper and control the Outlet time of device the same period, compared with the three-phase definite value movement time set,
Thus judge that low anti-breaker actuation is the most correct.
In concrete test, separating brake order is as intake, startup separator oscillograph.With the reference voltage zero crossing T1 moment it is
Benchmark, switch controls device time delay 7.6ms disconnection A phase chopper, time delay 14.4ms tripping B phase chopper, time delay the same period
13.0ms tripping C phase chopper, test data is as shown in list 1.
Table 1 test data
Being understood compared with standard value by test data, test value is in the range of error allows.Use this utility model
Building the scheme of test model at extra-high voltage Commissioning field, altogether carried out 6 tests at extra-high voltage scene, test data all exists
In critical field, demonstrating chopper and control device action correctly the same period, acting characteristic meets on-the-spot service requirement.Also test simultaneously
Demonstrate,prove calibration equipment of the present utility model and method of calibration has efficiently solved scene and the same period chopper is controlled device debugging, examination
A difficult problem.
This utility model is not limited to the above description to embodiment, and those skilled in the art disclose according to this utility model
Content, the improvement that need not be carried out through creative work on the basis of this utility model and amendment, all should be new in this practicality
Within the protection domain of type.
Claims (2)
1. extra-high voltage station chopper controls the calibration equipment of device the same period, it is characterised in that mainly include measure and control device, the same period/
Non-synchronous switching selection switch, relay protection three-phase tester, chopper control device, fault oscillograph, low anti-open circuit the same period
Device and secondary circuit；Measure and control device includes observing and controlling screen；
Relay protection three-phase tester is for providing the three-phase forward-order current needed for verification test and reference voltage, and three-phase positive sequence is electric
Flow through after chopper controls device, fault oscillograph the same period and seal in low anti-chopper, in order to monitor when cut-offfing of Duan Dikang road device
Carve；Reference voltage is used for providing benchmark zero point；
Measure and control device is used for sending hands and jumps/distant jumping order, controls chopper and controls the separating brake of device, hands jumping/distant jumping simultaneously the same period
Order is as switching value startup separator oscillograph；
After considering expection operating time of chopper and meeting some requirements, chopper controls device the same period and sends and divide the same period
Lock order, so that low anti-chopper performs opening operation in suitable phase place；
When each low anti-chopper disconnects, fault oscillograph record corresponding electric current, voltage waveform and each timing node data.
Calibration equipment the most according to claim 1, it is characterised in that the 110kV that low anti-chopper uses ABB AB to produce
Chopper；Chopper controls the F236 chopper that device uses ABB AB to produce the same period and controls device the same period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620578834.5U CN205665584U (en) | 2016-06-08 | 2016-06-08 | Extra -high voltage station circuit breaker controlling means's in same term calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620578834.5U CN205665584U (en) | 2016-06-08 | 2016-06-08 | Extra -high voltage station circuit breaker controlling means's in same term calibration equipment |
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| Publication Number | Publication Date |
|---|---|
| CN205665584U true CN205665584U (en) | 2016-10-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620578834.5U Withdrawn - After Issue CN205665584U (en) | 2016-06-08 | 2016-06-08 | Extra -high voltage station circuit breaker controlling means's in same term calibration equipment |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892452A (en) * | 2016-06-08 | 2016-08-24 | 国网安徽省电力公司检修公司 | Verification device for breaker synchronous control device of extra-high pressure station and verification method |
-
2016
- 2016-06-08 CN CN201620578834.5U patent/CN205665584U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892452A (en) * | 2016-06-08 | 2016-08-24 | 国网安徽省电力公司检修公司 | Verification device for breaker synchronous control device of extra-high pressure station and verification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161026 Effective date of abandoning: 20180629 |