CN103308811B - 750kV transformer station subsystem debugging apparatus - Google Patents
750kV transformer station subsystem debugging apparatus Download PDFInfo
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- CN103308811B CN103308811B CN201310262715.XA CN201310262715A CN103308811B CN 103308811 B CN103308811 B CN 103308811B CN 201310262715 A CN201310262715 A CN 201310262715A CN 103308811 B CN103308811 B CN 103308811B
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Abstract
The invention discloses a kind of 750kV transformer station subsystem debugging apparatus; comprise route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet; described route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet are connected on the current return of relay protection instrument respectively, and described route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet are connected in parallel on the voltage circuit of relay protection instrument.Thus reach comprehensive debug is carried out to transformer station's subsystem, improve power supply reliability, and improve the object of transformer station's subsystem debugging efficiency.
Description
Technical field
The present invention relates to voltage debugging field, particularly, relate to a kind of 750kV transformer station subsystem debugging apparatus.
Background technology
At present; domestic 750kV transforming plant primary main wiring mode mainly adopts 3/2 wiring; it possesses very high power supply reliability; secondary connection is complicated, usually comprises two cover line protective devices, two cover protection device for circuit breakers and breaker operation cabinet, two cover high resistance protective device compositions for a line unit.The adjustment method of usual employing be first carry out protection monomer debugging errorless after carry out subsystem debugging; the method of concrete employing is whole group of transmission test of advanced row line protection; the charge protection of protection device for circuit breaker self is carried out after belt switch transmission is errorless; failure protection and reclosing test, then carry out the electric quantity protective of high voltage reactor and the transmission test of non-ionizing energy loss.
Although be very comprehensive from the project of test, centre misses the matching relationship each other between a lot of protection.Specific as follows; also single-hop substance can be realized as during route protection transmission switch; what protection device for circuit breaker realized is that position uncorresponding position started reclosing and protection act start reclosing; reclosing can not be started by simultaneous verification electricity; the matching relationship that isolating switch two overlaps reclosing can not be verified when doing permanent fault; that can not verify two cover breaker fail protections opens the action simultaneously into whether simultaneously, singly does high resistance protection and can not verify that circuit far jumps function etc.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of 750kV transformer station subsystem debugging apparatus, to realize carrying out comprehensive debug to transformer station's subsystem, improve power supply reliability, and improve the advantage of transformer station's subsystem debugging efficiency.
For achieving the above object, the technical solution used in the present invention is:
A kind of 750kV transformer station subsystem debugging apparatus comprises route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet; described route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet are connected on the current return of relay protection instrument respectively, and described route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet are connected in parallel on the voltage circuit of relay protection instrument.
Further, described route protection cabinet adopts southern auspicious relay protection RCS-931A.
Further, described overvoltage protection cabinet adopts southern auspicious relay protection RCS-925A.
Further, described breaker protection cabinet adopts southern auspicious relay protection RCS-921A.
Further, also comprise breaker operator cabinet, described breaker operator cabinet electrical connection in voltage protection cashier's office in a shop.
Technical scheme of the present invention has following beneficial effect:
Technical scheme of the present invention, by route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet, under two cover protective devices and relevant two cover protection device for circuit breakers are in same fault condition, verify that whether protection act matching relationship that is whether correct and all protective devices is correct, find that protection definite value arranges Problems existing, the recessive problem existed in system is exposed in time, thus reach comprehensive debug is carried out to transformer station's subsystem, improve power supply reliability, and improve the object of transformer station's subsystem debugging efficiency.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the 750kV transformer station subsystem debugging apparatus described in the embodiment of the present invention;
Fig. 2 is existing 750kVLA II loop line primary connection schematic diagram;
Fig. 3 is the structural representation that LA II loop line starts RCS-931A teletransmission I loop;
Fig. 4 is that 7552 isolating switch I loop structure schematic diagram are jumped in the collection of letters and overvoltage forever;
Fig. 5 is that 7550 isolating switch I loop structure schematic diagram are jumped in the collection of letters and overvoltage forever.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
As shown in Figure 1; a kind of 750kV transformer station subsystem debugging apparatus comprises route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet; route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet are connected on the current return of relay protection instrument respectively, and route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet are connected in parallel on the voltage circuit of relay protection instrument.
Wherein, route protection cabinet adopts southern auspicious relay protection RCS-931A.Overvoltage protection cabinet adopts southern auspicious relay protection RCS-925A.Breaker protection cabinet adopts southern auspicious relay protection RCS-921A.Also comprise breaker operator cabinet, the electrical connection of breaker operator cabinet in voltage protection cashier's office in a shop.
Further illustrate below in conjunction with accompanying drawing.Relaying configuration for 750 kv substations of employing 3/2 wiring adopts two cover relaying configuration with a line unit, for the debugging of first set protective device, first goes here and there LA II loop line for such as shown in Fig. 2 with 750 kv substations the 5th:
Device in a technical solution of the present invention relay-protection tester only inputs the debugging efforts that one group of electric current and voltage can complete whole system, and can verify the matching problem of whole protection well.Utilize fault oscillograph can monitor time and the failure message of protection act event at any time in debug process.
As shown in Figure 3,750kVLA II loop line optical differential, superpotential and far jump protective loop:
Overvoltage starts teletransmission loop: when after line over-voltage; this side isolating switch of overvoltage protection tripping lock-reclosing lock; utilize route protection optical-fibre channel to send out " transfer trip " signal tripping circuit offside isolating switch simultaneously, make this side line over-voltage more serious to prevent capacity effect.
7550 breaker failures start teletransmission loop: LA II loop line (LWI loop line) protection act; during 7550 breaker failure; failure protection first time limit jumps this isolating switch; second time limit jumped adjacent 7551 and 7552 isolating switchs; send out " transfer trip " signal tripping LA II loop line (LWI loop line) offside isolating switch simultaneously, fault is thoroughly isolated.
7552 breaker failures start teletransmission loop: LA II loop line or 750 kilovolt of II female bus bar differential prptection operation; during 7552 breaker failure; failure protection first time limit jumps this isolating switch; second time limit jumped adjacent 7550 isolating switchs; startup 750 kilovolt II mother mother is differential simultaneously makes the upper all isolating switchs of tripping II mother; start jumping LA II loop line offside isolating switch far away, fault is thoroughly isolated.
As shown in Figure 4,7552 isolating switch I loops are far jumped in the collection of letters and overvoltage:
The breaker failure of LA II loop line offside or Line over-voltage protection can start far away jumps this side isolating switch first coil, and this side isolating switch three-phase is jumped in the action after criterion on the spot meets of this side, and lock-reclosing lock.
As shown in Figure 5,7550 isolating switch I loops are far jumped in the collection of letters and overvoltage:
The breaker failure of LA II loop line offside or Line over-voltage protection can start far away jumps this side isolating switch first coil, and this side isolating switch three-phase is jumped in the action after criterion on the spot meets of this side, and lock-reclosing lock.
The automatic reclosing of 750kVLA II loop line:
For the automatic reclosing of 750kVLA II loop line of 3/2 wiring, if the mode of connection of employing figure mono-can find the relation of automatic reclosing between 7552 isolating switchs and 7550 isolating switchs and the priority logical relation of checking automatic reclosing.In order to reduce breaker actuation number of times; the impact that the mute time of shortening permanent fault and fault cause system; general provision is after protection act tripping two isolating switchs; wherein the reclosing of an isolating switch should first overlap, and another isolating switch overlaps after certain time delay (avoid post reclosing acceleration time must not be less than 300ms) again.Namely the automatic reclosing sequencing of 7550 isolating switchs and 7552 isolating switchs requires it is first close 7552 isolating switchs to close 7550 isolating switchs again.
The cooperation of (1) 7552 isolating switch and 7550 isolating switch automatic reclosings
If overlap 7552 isolating switch unsuccessful reclosings, 7550 isolating switchs that then overlap afterwards will no longer overlap, namely after the reclosing successful reclosing of preferential 7552 isolating switchs overlapped, the multiple switching relay of 7550 delayed isolating switchs is allowed to continue to overlap, otherwise preferential reclosing answers the delayed reclosing of locking to overlap.If the reclosing device of 7552 isolating switchs is refused to close for a certain reason; then 7550 isolating switchs at least overlap once; the rear Accelerated trip of LA II loop line route protection or reclosing protector itself has jumper connection point forever to export, should by rebound road i.e. lock-reclosing lock contact (three-phase tripping operation) discharge to 7550 release units forever.
(2) start mode of reclosing
Reclosing is started by two kinds of modes: the not corresponding starting in position and outside tripping operation are started.Outside tripping operation starting refers to route protection action and sends out trip signal and start reclosing simultaneously.Just reclosing is started after these two initiating elements start.Coincidence is started in the not corresponding starting in position and outside tripping operation to be had starting substance and starts triple two kinds.The circuit three that device also comes according to outside is jumped and the TWJ signal of the single-hop signal of A, B, C phase and phase-splitting differentiates it is that single-phase tripping operation or three-phase trip, and correspondence starts substance and triple respectively.
(3) the coordinating of reclosing and isolating switch non-three phase
Single-pole reclosing time of LA II loop line must escape three phases un identical protection actuation time, and to ensure that reclosing device can action message, consider the problem that reclosing is preferential, the three phases un identical protection of general isolating switch should be treated with a certain discrimination actuation time.As 7552 isolating switchs first close, close after 7550 isolating switchs, then 7552 breaker protections are shorter for actuation time, and 7550 breaker protections are long for actuation time.When open-phase operation appears in the isolating switch under 3/2 mode of connection, circuit is non-three phase not necessarily.When open-phase operation appears in circuit, isolating switch is necessarily in non-full-operating state.Only have when wherein an isolating switch is out of service, there is non-three phase in isolating switch, circuit just there will be non-three phase.Wherein non-whole phase protection is combined by the auxiliary contact of switch or the contact of position relay.
Note: 1, be with the mark of " D " or " R " all to represent connection terminal number in the apparatus in figure, such as: in Fig. 3, " 9D37 ", " 9D39 " represent the auspicious route protection cabinet A in RCS-931A(south) in two terminals number;
2, in figure, pure digi-tal mark represents the node of this element, such as: in Fig. 3, " 921 ", " 922 " represent 921 and 922 two nodes of jumping starting relay far away.
3, far jumping the time relay in starting relay and Fig. 4 in figure tri-is the different elements in RCS-925 device, and it acts on difference.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a 750kV transformer station subsystem debugging apparatus, it is characterized in that, comprise route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet, described route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet are connected on the current return of relay protection instrument respectively, and described route protection cabinet, overvoltage protection cabinet, breaker protection cabinet, reactor protection cabinet and failure wave-recording cabinet are connected in parallel on the voltage circuit of relay protection instrument; Input with a relay protection instrument debugging efforts that namely one group of electric current and voltage complete whole transformer station subsystem, and the matching problem of whole transformer station subsystem protection can be verified; Fault oscillograph is utilized to monitor time and the failure message of protection act event at any time in debug process.
2. 750kV transformer station according to claim 1 subsystem debugging apparatus, is characterized in that, described route protection cabinet adopts southern auspicious relay protection RCS-931A.
3. 750kV transformer station according to claim 1 subsystem debugging apparatus, is characterized in that, described overvoltage protection cabinet adopts southern auspicious relay protection RCS-925A.
4. 750kV transformer station according to claim 1 subsystem debugging apparatus, is characterized in that, described breaker protection cabinet adopts southern auspicious relay protection RCS-921A.
5. 750kV transformer station according to claim 1 subsystem debugging apparatus, is characterized in that, also comprise breaker operator cabinet, and described breaker operator cabinet electrical connection in voltage protection cashier's office in a shop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262715.XA CN103308811B (en) | 2013-06-27 | 2013-06-27 | 750kV transformer station subsystem debugging apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310262715.XA CN103308811B (en) | 2013-06-27 | 2013-06-27 | 750kV transformer station subsystem debugging apparatus |
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| CN103308811A CN103308811A (en) | 2013-09-18 |
| CN103308811B true CN103308811B (en) | 2015-11-04 |
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| CN201310262715.XA Expired - Fee Related CN103308811B (en) | 2013-06-27 | 2013-06-27 | 750kV transformer station subsystem debugging apparatus |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683224A (en) * | 2013-11-12 | 2014-03-26 | 国家电网公司 | Protective device for trip acceleration of common-tower lines |
| CN104375501A (en) * | 2014-11-06 | 2015-02-25 | 国家电网公司 | Substation area protection adjusting method for intelligent substation |
| CN105093023A (en) * | 2015-08-13 | 2015-11-25 | 国家电网公司 | Line protection test method based on device serial connection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000050492A (en) * | 1998-07-30 | 2000-02-18 | Toshiba Corp | Protection relay device |
| CN101458504A (en) * | 2008-12-09 | 2009-06-17 | 国电南瑞科技股份有限公司 | Digital synthesis protection observe and control unit of multipath operation mode |
| CN101799504A (en) * | 2010-04-20 | 2010-08-11 | 天津市电力公司 | Method for testing influence of distortion data on relay protection device |
| CN101867225A (en) * | 2010-05-31 | 2010-10-20 | 江苏省电力公司南通供电公司 | Debugging method for integrated automation of transformer substation and integration of relaying protection system |
| CN102882188A (en) * | 2012-08-10 | 2013-01-16 | 国电南瑞科技股份有限公司 | Centralized digital 35kV single-bus unit protection measurement and control system for 500kv substation |
| CN203287459U (en) * | 2013-06-27 | 2013-11-13 | 国家电网公司 | Subsystem debugging device of 750 kV transformer station |
-
2013
- 2013-06-27 CN CN201310262715.XA patent/CN103308811B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000050492A (en) * | 1998-07-30 | 2000-02-18 | Toshiba Corp | Protection relay device |
| CN101458504A (en) * | 2008-12-09 | 2009-06-17 | 国电南瑞科技股份有限公司 | Digital synthesis protection observe and control unit of multipath operation mode |
| CN101799504A (en) * | 2010-04-20 | 2010-08-11 | 天津市电力公司 | Method for testing influence of distortion data on relay protection device |
| CN101867225A (en) * | 2010-05-31 | 2010-10-20 | 江苏省电力公司南通供电公司 | Debugging method for integrated automation of transformer substation and integration of relaying protection system |
| CN102882188A (en) * | 2012-08-10 | 2013-01-16 | 国电南瑞科技股份有限公司 | Centralized digital 35kV single-bus unit protection measurement and control system for 500kv substation |
| CN203287459U (en) * | 2013-06-27 | 2013-11-13 | 国家电网公司 | Subsystem debugging device of 750 kV transformer station |
Non-Patent Citations (1)
| Title |
|---|
| 河南省电力公司洛阳供电公司.500kV继电保护设备验收流程卡.《500kV继电保护设备现场预控与检验》.中国电力出版社,2010,第55页第2段，图4-1. * |
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| CN103308811A (en) | 2013-09-18 |
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Effective date of registration: 20170503 Address after: 830011, 155 West Jiangsu Road, Xinshi District, the Xinjiang Uygur Autonomous Region, Urumqi Co-patentee after: State Grid Corporation of China Patentee after: XINJIANG POWER TRANSMISSION AND TRANSFORMATION ENGINEERING Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China |
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Granted publication date: 20151104 |