CN103630789A - Auxiliary experiment device for breaker failure protection - Google Patents
Auxiliary experiment device for breaker failure protection Download PDFInfo
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- CN103630789A CN103630789A CN201310702652.5A CN201310702652A CN103630789A CN 103630789 A CN103630789 A CN 103630789A CN 201310702652 A CN201310702652 A CN 201310702652A CN 103630789 A CN103630789 A CN 103630789A
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Abstract
The invention relates to an auxiliary experiment device for breaker failure protection, comprising a light-emitting circuit, a relay ZJ and a time relay SJ, wherein two ends of coils of the time relay SJ and the relay ZJ are respectively connected with positive and negative ends of a bus of a control power supply; an auxiliary contact SJ1 and buttons SB1 and SB2, which are connected in parallel are arranged between the relay ZJ and the positive end of the bus of the control power supply in series; the auxiliary contact ZJ1 of the relay ZJ is connected between the time relay SJ and the anode of the bus of the control power supply in series; the auxiliary contacts ZJ5 and ZJ2 are respectively connected between a green lamp LD and a red lamp HD of an alarm lamp and the bus of the control power supply in the light-emitting circuit. The auxiliary experiment device can simultaneously simulate a failure starting contact, a repressing unlock contact and a bus tie breaker position contact in the failure protection debugging process of the breaker, and also can reliably return back within the set time, carries out automatic switching opening by an auxiliary experiment apparatus for breaker failure protection instead of a person. Thus, input of a worker is reduced, and the labor intensity of the worker is also reduced.
Description
Technical field
The present invention relates to a kind of breaker fail protection assistant experiment device.
Background technology
Along with intelligent grid great-leap-forward develops on a large scale, Wulumuqi Area power load constantly increased in recent years, more and more higher to power supply safety stability requirement.In electric system, because of transmission line of electricity or element fault, breaker failure tripping, while causing connected bus-bar fault, need excision or isolated fault point in time, guarantee the safety and stability continuous service of electric system.In order to guarantee the safe and stable operation of system, for important transformer station and 220kV and above transformer station, need to configure necessary breaker fail protection.
In order to guarantee power supply safety stability, guarantee breaker fail protection energy correct operation, circuit-breaker failure portection equipment is carried out to periodic inspection and just become particularly important.In checkout procedure in order to guarantee power supply reliability, often relevant primary equipment does not have a power failure, and need to open the peripheral loop relevant with operational outfit, avoid having influence on operational outfit, this time operational outfit switching value (switching value is a kind of digital quantity, its value is 0 or 1, circuit-breaker failure portection equipment needs malfunctioning startup, malfunctioning solution presses off the switching values such as lock and bus position again, the running status of judgment device is to complete its malfunctioning logic) cannot open into breaker failure device, artificially the method for short circuit realize open into, when intake is many, need many people to coordinate.This kind of method needs staff to open into accurate; open order, open in the angle of incidence, coordinate rigorous; but often because of indivedual switching values open into sequencing make mistakes or do not open into etc. reason cause the based Cb Failure Protection cannot follow procedure completion logic; the failure of an experiment; can only again test; thereby cause checking time to increase, extended failure protection idle time, reduced power supply safety stability.
Summary of the invention
The object of the present invention is to provide a kind of malfunctioning movable contact, multiple unblock contact and bus position contact of pressing of simultaneously simulating; also can reliably return at setting-up time, with breaker fail protection assistant experiment instrument replace people to automatically switch opening into breaker fail protection assistant experiment device.
The object of the present invention is achieved like this: it comprises illuminating circuit breaker fail protection assistant experiment device; relay ZJ, time relay sj; time relay sj, relay ZJ coil two ends are connected with control power source bus positive and negative terminal respectively, between relay ZJ and control power source bus positive terminal, are in series with auxiliary contact SJ1 parallel with one another and button SB1, SB2.The auxiliary contact ZJ1 of relay ZJ is series at time relay sj and controls the positive interpolar of power source bus, and auxiliary contact ZJ5, ZJ2 are series at respectively in illuminating circuit between alarm lamp green light LD and red light HD and control power source bus.
Owing to carrying out technique scheme; the application is in breaker fail protection debug process; not only can simulate malfunctioning movable contact, multiple unblock contact and the bus position contact of pressing simultaneously; also can reliably return at setting-up time; with breaker fail protection assistant experiment instrument replace people to automatically switch opening into; reduce staff's input, reduced staff's labour intensity.And this device opens order in switching value, open and coordinate rigorous, accurately in the angle of incidence, greatly improved the success ratio of breaker fail protection debugging, shortened failure protection down time, improved power supply reliability.
Accompanying drawing explanation: technical scheme of the present invention is provided by following drawings and Examples:
Fig. 1 is breaker fail protection assistant experiment device circuit figure.
Embodiment:
The present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
Embodiment: as shown in Figure 1; it comprises illuminating circuit breaker fail protection assistant experiment device; relay ZJ, time relay sj; time relay sj, relay ZJ coil two ends are connected with control power source bus positive and negative terminal respectively, between relay ZJ and control power source bus positive terminal, are in series with auxiliary contact SJ1 parallel with one another and button SB1, SB2.The auxiliary contact ZJ1 of relay ZJ is series at time relay sj and controls the positive interpolar of power source bus, and auxiliary contact ZJ5, ZJ2 are series at respectively in illuminating circuit between alarm lamp green light LD and red light HD and control power source bus.
ZJ1-5 is the auxiliary contact of two-position relay ZJ, and when the ZJ actuating of relay/involution, the state of ZJ1-5 switches (conducting/disconnection) thereupon.ZJ3 auxiliary contact two ends are connected to malfunctioning the opening into point of main transformer of breaker fail protection, and are in series with conversion handle SW1.The malfunctioning solution of main transformer that ZJ4 auxiliary contact two ends are connected to breaker fail protection presses off again lock and opens into point, and is in series with conversion handle SW2.
Time relay sj has auxiliary contact SJ1-3, and during the actuating of relay/involution, the state of SJ1-3 switches (conducting/disconnection) thereupon.SJ2 auxiliary contact two ends are connected to bus position in breaker fail protection and open into point, and are in series with conversion handle SW3.SJ3 auxiliary contact two ends are connected to reaying protection test instrument and can control test instrument and stop opening into point of output, and are in series with conversion handle SW4.
SW1-4, for conversion handle, controls this contact and whether accesses corresponding circuit.
Button SB1 presses off lock again for starting malfunctioning/malfunctioning solution; adopt involution button; after this button presses down, 1 positively charged, the now charged action of relay ZJ actuation coil; their corresponding normal opened contacts are closed; normally closed contact is opened (ZJ1-4 is closed, and ZJ5 opens, and red light HD is charged to be lighted); these corresponding contacts can be introduced to circuit-breaker failure portection equipment simulate the malfunctioning startup of main transformer, the malfunctioning solution of main transformer and press off again lock-switch amount and open into, control time relay SJ action message simultaneously.
SB2 button also adopts involution button; after this button presses down; 2 positively chargeds; the now charged action of relay ZJ involution coil; their corresponding normal opened contacts are opened, normally closed contact closed (ZJ1-4 opens, and green light LD is charged to be lighted); the breaker fail protection assistant experiment instrument that can reset, pilot relay ZJ and auxiliary contact return to original state.
Service condition: 1, Islqd (malfunctioning starting current) >Izd(setting valve), without the malfunctioning startup of main transformer open into, to press off lock again open, breaker fail protection is failure to actuate; In breaker fail protection, pass into normal busbar voltage; at main transformer branch road, pass into the secondary current that is greater than malfunctioning starting current setting valve; SJ time relay time of adjusting is 10 seconds, and SW1 is placed in and exits position, and SW2-4 is placed in and drops into position (the malfunctioning startup of main transformer branch road is failure to actuate).Press SB1 button; start ZJ relay; ZJ1-4 junction closure, ZJ5 open, start timing 10 seconds after SJ relay starting, when red, green light go out, breaker fail protection can not receive the malfunctioning startup of main transformer open in the situation that, breaker fail protection is failure to actuate.After 10 seconds, assistant experiment device is reset, and stops output.
,islqd (malfunctioning starting current) >Izd(setting valve), the malfunctioning startup of main transformer open into, to press off lock again open, breaker fail protection is failure to actuate; In breaker fail protection, pass into normal busbar voltage; at main transformer branch road, pass into the secondary current that is greater than malfunctioning starting current setting valve; SJ time relay time of adjusting is 10 seconds, and SW2 is placed in and exits position, and SW1, SW3, SW4 are placed in and drop into position (the malfunctioning solution of main transformer is pressed and is failure to actuate again).Press SB1 button; start ZJ relay; ZJ1-4 junction closure, ZJ5 open, start timing 10 seconds after SJ relay starting, when red, green light go out, breaker fail protection can not receive the malfunctioning solution of main transformer press off again lock open in the situation that, breaker fail protection is failure to actuate.After 10 seconds, assistant experiment device is reset, and reaying protection test instrument stops output.
,islqd (malfunctioning starting current) >Izd(setting valve), the malfunctioning startup of main transformer open into, to press off lock again open, 0.2 second breaker fail protection, with jumping main transformer branch road (malfunctioning branch road), returns with jumping successfully rear failure protection.In breaker fail protection, pass into normal busbar voltage, pass into the secondary current that is greater than malfunctioning starting current setting valve at main transformer branch road, the SJ time relay time of adjusting is 0.25 second, and SW1-4 is all placed in and drops into position.Press SB1 button, start ZJ relay, ZJ1-4 junction closure, ZJ5 open, SJ relay starts timing 0.25 second after starting, and when red, green light go out, in the time of 0.2 second, breaker fail protection is sent out with the instruction of jumping malfunctioning branch road.After 0.25 second, assistant experiment device is reset, reaying protection test instrument stops output.
,islqd (malfunctioning starting current) >Izd(setting valve), the malfunctioning startup of main transformer open into, to press off lock again open; within 0.2 second, breaker fail protection is unsuccessful with jumping main transformer branch road (malfunctioning branch road), within 0.3 second, jumps mother success, within 0.4 second, jumps malfunctioning bus.In breaker fail protection, pass into normal busbar voltage, pass into the secondary current that is greater than malfunctioning starting current setting valve at main transformer branch road, the SJ time relay time of adjusting is 0.35 second, and SW1-4 is all placed in and drops into position.Press SB1 button; start ZJ relay; ZJ1-4 junction closure, ZJ5 open, SJ relay starts timing 0.35 second after starting; when red, green light go out, in the time of 0.2 second, breaker fail protection is sent out with the instruction of jumping malfunctioning branch road; in the time of 0.3 second, send out and jump mother instruction, the SJ actuating of relay in the time of 0.35 second, ZJ relay involution coil motion, ZJ relay returns; ZJ1-4, SJ2-3 contact are by closing out, and assistant experiment device is reset, reaying protection test instrument stops output.Bus position is by closing variation, and fault is isolated.
,islqd (malfunctioning starting current) >Izd(setting valve), the malfunctioning startup of main transformer open into, to press off lock again open; 0.2 second breaker fail protection is unsuccessful with jumping main transformer branch road (malfunctioning branch road), within 0.3 second, jump mother unsuccessful, within 0.4 second, jump malfunctioning bus, within 0.5 second, jump another bus.In breaker fail protection, pass into normal busbar voltage, pass into the secondary current that is greater than malfunctioning starting current setting valve at main transformer branch road, the SJ time relay time of adjusting is 0.55 second, and SW1-4 is all placed in and drops into position.Press SB1 button; start ZJ relay; ZJ1-4 junction closure, ZJ5 open, SJ relay starts timing 0.35 second after starting; when red, green light go out, in the time of 0.2 second, breaker fail protection is sent out with jumping malfunctioning branch road unsuccessful (ZJ does not return); in the time of 0.3 second, send out and jump mother unsuccessful (SJ does not move); within 0.4 second, jump malfunctioning bus, 0. 5 seconds breaker fail protections are sent out and are jumped another bus instruction.The SJ actuating of relay in the time of 0.55 second, ZJ relay involution coil motion, ZJ relay returns, and ZJ1-4, SJ2-3 contact are by closing out, and assistant experiment device is reset, reaying protection test instrument stops output.
Above technical characterictic has formed most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs inessential technical characterictic, meets the needs of different situations.
Claims (6)
1. a breaker fail protection assistant experiment device, it comprises illuminating circuit, relay ZJ, time relay sj, it is characterized in that: time relay sj, relay ZJ coil two ends are connected with control power source bus positive and negative terminal respectively, between relay ZJ and control power source bus positive terminal, be in series with auxiliary contact SJ1 parallel with one another and button SB1, SB2, the auxiliary contact ZJ1 of relay ZJ is series at time relay sj and controls the positive interpolar of power source bus, auxiliary contact ZJ5, ZJ2 is series at respectively in illuminating circuit alarm lamp green light LD and red light HD and controls between power source bus, ZJ1-5 is the auxiliary contact of two-position relay ZJ, time relay sj has auxiliary contact SJ1-3.
2. breaker fail protection assistant experiment device as claimed in claim 1, is characterized in that: ZJ3 auxiliary contact two ends are connected to malfunctioning the opening into point of main transformer of breaker fail protection, and are in series with handle SW1.
3. breaker fail protection assistant experiment device as claimed in claim 1, is characterized in that: the malfunctioning solution of main transformer that ZJ4 auxiliary contact two ends are connected to breaker fail protection presses off again lock and opens into point, and is in series with handle SW2.
4. breaker fail protection assistant experiment device as claimed in claim 1, is characterized in that: SJ2 auxiliary contact two ends are connected to bus position in breaker fail protection and open into point, and is in series with handle SW3.
5. breaker fail protection assistant experiment device as claimed in claim 1, is characterized in that: SJ3 auxiliary contact two ends are connected to reaying protection test instrument and can control test instrument and stop opening into point of output, and are in series with handle SW4.
6. breaker fail protection assistant experiment device as claimed in claim 1, is characterized in that: button SB1,2 presses off lock again for starting malfunctioning/malfunctioning solution, adopts involution button.
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| CN201310702652.5A CN103630789A (en) | 2013-12-19 | 2013-12-19 | Auxiliary experiment device for breaker failure protection |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105261160A (en) * | 2015-11-23 | 2016-01-20 | 国网辽宁省电力有限公司营口供电公司 | Synthesized alarming system of miniature transformer station |
| CN105891639A (en) * | 2016-04-22 | 2016-08-24 | 邹平县供电公司 | Method of using peripheral control circuit to indicate starting of leakage protector test |
| CN105954626A (en) * | 2016-06-22 | 2016-09-21 | 国网山东省电力公司莱芜供电公司 | Portable microcomputer bus protection apparatus tester |
| CN106093761A (en) * | 2016-06-06 | 2016-11-09 | 中国南方电网有限责任公司超高压输电公司 | Extra-high voltage direct-current by-pass switch position judging method and device |
| CN106353672A (en) * | 2016-08-19 | 2017-01-25 | 苏州宝化炭黑有限公司 | Judging device for switch malfunction of operating post |
| CN106597208A (en) * | 2017-01-24 | 2017-04-26 | 国网河南省电力公司安阳供电公司 | Breaker failure start loop detection device and method |
| CN108020738A (en) * | 2017-11-27 | 2018-05-11 | 国网安徽省电力公司黄山供电公司 | A kind of hard pressing plate verification auxiliary control device of substation |
| CN110542826A (en) * | 2019-09-23 | 2019-12-06 | 深圳供电局有限公司 | On-site calibration method for failure protection starting circuit of power grid transmission line breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105261160A (en) * | 2015-11-23 | 2016-01-20 | 国网辽宁省电力有限公司营口供电公司 | Synthesized alarming system of miniature transformer station |
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| CN105954626A (en) * | 2016-06-22 | 2016-09-21 | 国网山东省电力公司莱芜供电公司 | Portable microcomputer bus protection apparatus tester |
| CN106353672A (en) * | 2016-08-19 | 2017-01-25 | 苏州宝化炭黑有限公司 | Judging device for switch malfunction of operating post |
| CN106353672B (en) * | 2016-08-19 | 2024-02-27 | 苏州宝化炭黑有限公司 | Operation column switch failure judgment device |
| CN106597208A (en) * | 2017-01-24 | 2017-04-26 | 国网河南省电力公司安阳供电公司 | Breaker failure start loop detection device and method |
| CN108020738A (en) * | 2017-11-27 | 2018-05-11 | 国网安徽省电力公司黄山供电公司 | A kind of hard pressing plate verification auxiliary control device of substation |
| CN110542826A (en) * | 2019-09-23 | 2019-12-06 | 深圳供电局有限公司 | On-site calibration method for failure protection starting circuit of power grid transmission line breaker |
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Application publication date: 20140312 |