CN103837826A - System and method for identification of faulty region of high-voltage switch operating circuit - Google Patents
System and method for identification of faulty region of high-voltage switch operating circuit Download PDFInfo
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- CN103837826A CN103837826A CN201410101379.5A CN201410101379A CN103837826A CN 103837826 A CN103837826 A CN 103837826A CN 201410101379 A CN201410101379 A CN 201410101379A CN 103837826 A CN103837826 A CN 103837826A
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Abstract
The invention discloses a system and method for identification of a faulty region of a high-voltage switch operating circuit. The system comprises the switch operating circuit, a signal circuit, a monitor terminal and a remote control monitoring master station. According to the method, a fault occurrence diagnosis circuit and a faulty region diagnosis circuit are additionally arranged in the switch operating circuit so that whether the switch operating circuit has a fault can be diagnosed, and the fault occurrence region can be diagnosed, a faulty region signal is generated and displayed through the signal circuit, and a faulty region identification result signal is uploaded to the remote control monitoring master station through the monitor terminal; the fault occurrence diagnosis circuit makes contact with the faulty region diagnosis circuit by controlling an auxiliary contact of a relay, the faulty region diagnosis circuit makes contact with the signal circuit by controlling the auxiliary contact of the relay, an auxiliary contact of a switch-on supervisory relay and an auxiliary contact of a switch-off supervisory relay, so that switch operating circuit faulty region identification action logic is formed. By means of the system, identification of the faulty region can be realized, the first-aid repair efficiency of a faulty line is improved, first-aid repair labor is saved, and line load loss is greatly reduced.
Description
Technical field
The present invention relates to a kind of high-voltage switch gear operation circuit fault zone identification system and method.
Background technology
The operation circuit of relay protection is the important loop that ensures power network safety operation, between relay protection high-voltage switch gear operation circuit age at failure, if generation power grid accident, to start breaker fail protection, the whole piece bus at excision switch place, cause huge load loss, unique can cover the loss be exactly improve repairing efficiency, but the current domestic effective technological means that lacks, cannot distinguish quickly and accurately the particular location that high-voltage switch gear operation circuit fault occurs, therefore rushing to repair processing procedure relates to two groups of professionals (switching manipulation loop protection region breakdown repair professional and switch region breakdown repair professional) and coordinates looking up the fault region, cause the processing time long, inefficiency, expend larger labour.
Summary of the invention
The invention provides a kind of high-voltage switch gear operation circuit fault zone identification system and method, it has overcome the deficiencies in the prior art described in background technology.
One of technical scheme adopting that the present invention solves its technical matters is:
High-voltage switch gear operation circuit fault zone identification system, it comprises:
Switching manipulation loop, this switching manipulation loop comprises closing circuit, sub-gate circuit, fault generation diagnostic circuit and fault zone diagnostic circuit, this closing circuit and sub-gate circuit all comprise a switching mechanism, this fault generation diagnostic circuit comprise have some to often driving the pilot relay of auxiliary contact, this fault zone diagnostic circuit comprise all have respectively some to often driving combined floodgate supervisory relay and the separating brake supervisory relay of auxiliary contact and normally closed auxiliary contact;
For generation of with the signal circuit of the signal of display switch operation circuit fault zone, this signal circuit comprises switch region fault signal circuit and protection zone fault signal circuit;
Monitor terminal and remote monitoring main website, this signal circuit signal connects this monitor terminal, and this monitor terminal network signal connects this remote monitoring main website;
This fault generation diagnostic circuit can contact this fault zone diagnostic circuit by the auxiliary contact of this pilot relay and also determine whether allow this fault zone diagnostic circuit to carry out fault zone diagnosis; this fault zone diagnostic circuit contacts this signal circuit by the auxiliary contact of this combined floodgate supervisory relay and separating brake supervisory relay; by switch region fault signal circuit and protection zone fault signal circuit, whether conducting comes this fault zone of identification to this signal circuit, and this identification result is sent to this remote monitoring main website by monitor terminal.
Among one embodiment: this closing circuit comprises jumps position supervisory relay, this sub-gate circuit comprises co-bit supervisory relay, this co-bit supervisory relay and a jumping position supervisory relay all at least have respectively a pair of normally closed auxiliary contact, and this fault generation diagnostic circuit comprises the normally closed auxiliary contact of the co-bit supervisory relay being connected in series, normally closed auxiliary contact and the pilot relay of jumping position supervisory relay;
This fault zone diagnostic circuit comprises the region diagnostic circuit one being connected in closing circuit and is connected in the region diagnostic circuit two in sub-gate circuit, and this region diagnostic circuit one comprises that the combined floodgate supervisory relay at the two ends that are connected in series in this switching mechanism, the first couple of pilot relay often drive auxiliary contact; This region diagnostic circuit two comprises that the separating brake supervisory relay at the two ends that are connected in series in this switching mechanism, the second couple of pilot relay often drive auxiliary contact.
Among one embodiment: this switching manipulation loop also comprises the first power supply, this fault generation diagnostic circuit is connected to this first both ends of power.
Among one embodiment: this switching manipulation loop also comprises second source, this fault generation diagnostic circuit is selectively connected to this first both ends of power or second source two ends.
Among one embodiment: this switch region fault signal circuit comprises that the first couple that the first couple of the combined floodgate supervisory relay being connected in series often drives auxiliary contact, separating brake supervisory relay often drives auxiliary contact; This protection zone fault signal circuit comprises that the second couple of the combined floodgate supervisory relay being connected in series often opens first pair of normally closed auxiliary contact of auxiliary contact, separating brake supervisory relay and first pair of normally closed auxiliary contact of the combined floodgate supervisory relay that is connected in series, the second couple of separating brake supervisory relay are often driven auxiliary contact, often drives auxiliary contact and is connected in series respectively this switch region fault signal circuit, protection zone fault signal circuit for the 3rd pair of this pilot relay.
Among one embodiment: also comprise the optocoupler for transmitting fault zone signal, this switch region fault signal circuit and protection zone fault signal circuit are connected in series respectively this optocoupler, and this optocoupler signal connects this monitor terminal.
Among one embodiment: the technical parameter of the technical parameter of this co-bit supervisory relay and separating brake supervisory relay matches, the technical parameter of this jumping position supervisory relay and the technical parameter of combined floodgate supervisory relay match.
The present invention solve its technical matters the technical scheme adopting two be:
High-voltage switch gear operation circuit fault zone identification system based on one of scheme, high-voltage switch gear operation circuit fault zone discrimination method comprises:
In the time of switching mechanism operation or switching mechanism stand-by heat, there is operation circuit switch region fault, comprise:
In the time that switch moves, there is operation circuit protection zone fault, comprise:
When switching mechanism is when stand-by heat (switch divides position, by power transmission), there is operation circuit protection zone fault, comprise:
Step 33, the protection zone fault signal circuit conducting of this signal circuit also sends fault zone signal by monitor terminal to remote monitoring main website;
The technical program is compared with background technology, and its tool has the following advantages:
This link tester is crossed in closing circuit in switching manipulation loop and sub-gate circuit corresponding pilot relay, combined floodgate supervisory relay and separating brake supervisory relay is installed; using their auxiliary contact as signal transfer medium; realize the automatic Identification of switching manipulation circuit switching region fault and protection zone fault; according to the identification result of this fault zone; in conducting transmission line breakdown repair process, only need the repair personnel who sets out corresponding failure region to rush to repair; reduce expending of labour; also improve repairing efficiency, thereby reduced load loss.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 has illustrated the closing circuit schematic diagram in the A phase switching manipulation loop of the present embodiment one.
Fig. 2 has illustrated the first sub-gate circuit schematic diagram in the A phase switching manipulation loop of the present embodiment one.
Fig. 3 has illustrated the second sub-gate circuit schematic diagram in the A phase switching manipulation loop of the present embodiment one.
Fig. 4 has illustrated the first signal loop schematic diagram of the present embodiment one.
Fig. 5 has illustrated the secondary signal loop schematic diagram of the present embodiment one.
Fig. 6 has illustrated the connection diagram of fault generation diagnostic circuit in the present embodiment one.
Fig. 7 has illustrated the overall schematic of high-voltage switch gear operation circuit fault zone identification system.
Fig. 8 has illustrated closing circuit, sub-gate circuit and the fault generation diagnostic circuit connection diagram in the switching manipulation loop in the present embodiment two.
Fig. 9 has illustrated the signal circuit schematic diagram in the present embodiment two.
Embodiment
Please refer to Fig. 1 to Fig. 9:
Please refer to Fig. 7, high-voltage switch gear operation circuit fault zone identification system, it comprises:
Switching manipulation loop, comprise closing circuit, sub-gate circuit and switching mechanism, this switching manipulation loop also comprises the fault generation diagnostic circuit with pilot relay and the fault zone diagnostic circuit with combined floodgate supervisory relay, separating brake supervisory relay, this pilot relay has some to often driving auxiliary contact, and this combined floodgate supervisory relay and separating brake supervisory relay all have respectively some to often opening auxiliary contact and at least one pair of normally closed auxiliary contact;
For generation of with the signal circuit of the signal of display switch operation circuit fault zone, the signal circuit being somebody's turn to do comprises switch region fault signal circuit and protection zone fault signal circuit;
Monitor terminal 3 and remote monitoring main website 4, this signal circuit signal connects this monitor terminal, and this monitor terminal network signal connects this remote monitoring main website;
This fault generation diagnostic circuit can contact this fault zone diagnostic circuit by the auxiliary contact of this pilot relay and also determine whether allow this fault zone diagnostic circuit to carry out fault zone diagnosis; this fault zone diagnostic circuit contacts this signal circuit by the auxiliary contact of this combined floodgate supervisory relay and separating brake supervisory relay; by switch region fault signal circuit and protection zone fault signal circuit, whether conducting comes this fault zone of identification to this signal circuit, and this identification result is sent to this remote monitoring main website by monitor terminal
This fault zone comprises switch region 1 and protection zone 2, and this switch region 1 comprises this switching mechanism, and this protection zone 2 comprises except the switching manipulation loop feature this switching mechanism
Embodiment mono-, please refers to Fig. 1 to Fig. 6:
For the switching manipulation loop of 220kV and above, each of this three-phase line A, B, C phase is distinguished the switching manipulation loop of corresponding A, B, C phase mutually, that is, each all distinguishes a corresponding switching manipulation loop mutually.The switching manipulation loop of this each phase comprises closing circuit, the first sub-gate circuit, the second sub-gate circuit, the first power supply 100 and second source 300; This closing circuit and the first sub-gate circuit form first group of switching manipulation loop, and this closing circuit and the second sub-gate circuit form second group of switching manipulation loop.
Fault zone identification system and the method in first group of switching manipulation loop:
This closing circuit and the first sub-gate circuit are connected to the two ends of this first power supply 100, this closing circuit comprises switching mechanism 10, jumps position supervisory relay 11, this first sub-gate circuit comprises switching mechanism 10, the first co-bit supervisory relay 21, and this first co-bit supervisory relay 21 and a jumping position supervisory relay 11 all have respectively at least one pair of normally closed auxiliary contact;
One Fisrt fault generation diagnostic circuit 110 selects to be connected to the two ends of this first power supply 100 or second source 300 by switch, this Fisrt fault generation diagnostic circuit 110 comprises the first pilot relay 12 being connected in series, at least one pair of normally closed auxiliary contact of the first co-bit supervisory relay 11, at least one pair of normally closed auxiliary contact of jumping position supervisory relay 21.
One Fisrt fault region diagnostic circuit 120, this Fisrt fault region diagnostic circuit 120 comprises region diagnostic circuit 1 and region diagnostic circuit 2 122, this region diagnostic circuit 1 be connected in parallel this closing circuit switching mechanism 10 and and this closing circuit in jumping position supervisory relay 11 be connected in series in this first power supply 100 two ends, this region diagnostic circuit 1 comprises that the combined floodgate supervisory relay 13 being connected in series, the first couple of the first pilot relay 12 often drive auxiliary contact.This region diagnostic circuit 2 122 be connected in parallel this first sub-gate circuit switching mechanism 10 and and this first sub-gate circuit in co-bit supervisory relay 21 be connected in series in this first power supply 100 two ends, this region diagnostic circuit 2 122 comprises that the first separating brake supervisory relay 22 being connected in series, the second couple of the first pilot relay 12 often drive auxiliary contact.
One for generation of with the first signal loop of signal that shows this first group of switching manipulation loop fault region situation, this first signal loop comprises to be provided the 3rd power supply 400 of the electric energy of signal generation and is connected to the fault zone signal generating circuit between the 3rd power supply 400, this fault zone signal generating circuit comprises switch region fault signal circuit 410 and protection zone fault signal circuit 420, this switch region fault signal circuit 410 comprises that the 3rd pair of the first pilot relay 12 of being connected in series is often driven auxiliary contact, the first couple that the first couple of combined floodgate supervisory relay 13 often drives auxiliary contact and the first separating brake supervisory relay 22 often drives auxiliary contact, this protection zone fault signal circuit 420 comprises first pair of normally closed auxiliary contact of the first separating brake supervisory relay 22 being connected in series, the second couple of combined floodgate supervisory relay 13 often drives auxiliary contact or the second couple of the first separating brake supervisory relay 22 of being connected in series often drives auxiliary contact, first pair of normally closed auxiliary contact of combined floodgate supervisory relay 13, often drive auxiliary contact and be connected in series respectively this switch region fault signal circuit for the 3rd pair of this first pilot relay 12, protection zone fault signal circuit,
This switch region fault signal circuit 410 and protection zone fault signal circuit 420 are connected in series respectively the optocoupler 41 for transmitting fault zone signal, and this optocoupler signal connects this monitor terminal 3.
This Fisrt fault generation diagnostic circuit 110 judges that whether this operation circuit occurs and is contacted this Fisrt fault region diagnostic circuit 120 and determined whether allow this Fisrt fault region diagnostic circuit 120 to carry out fault zone diagnosis by the auxiliary contact of this first pilot relay 12, this Fisrt fault region diagnostic circuit 120 by this combined floodgate supervisory relay 13 and the first separating brake supervisory relay 22 often drive auxiliary contact and normally closed auxiliary contact contacts this first signal loop, this first signal loop by this switch region fault signal circuit 410 and protection zone fault signal circuit 420 whether conducting judge the fault zone in this switching manipulation loop of breaking down, and this identification result is sent to this remote monitoring main website 4 by monitor terminal 3.
Below be divided into the logical action principle that three kinds of situations illustrate this first group of switching manipulation loop fault domain identification:
1, when switching mechanism is in operation or when switching mechanism stand-by heat (switch divides position, by power transmission) state, there is operation circuit switch region fault,
(1) in the jumping position supervisory relay 11(figure in closing circuit, be 1TWJa, 2TWJa, 3TWJa), the first co-bit supervisory relay 21 (being 11HWJa, 12HWJa, 13HWJa in figure) in sub-gate circuit all decompression is failure to actuate, its normally closed auxiliary contact is all in closure state, now drive the first pilot relay 12 (being 1ZKa in figure), the first pilot relay 12 often open auxiliary contact closure, this Fisrt fault generation diagnostic circuit diagnoses out this first group of switching manipulation loop to break down.
(2) when switch region fault, between closing circuit switching mechanism 10 two ends (being between 7A and n29 in figure), between the first sub-gate circuit switching mechanism 10 two ends, (in figure, being between 137A and n29) is equivalent to open circuit, 7A and n29, between 137A and n29, have potential difference (PD), now jump position supervisory relay 11 and the first co-bit supervisory relay 21 and should not move, combined floodgate supervisory relay 12 and the first separating brake supervisory relay 22 move, it often opens auxiliary contact closure, and normally closed auxiliary contact disconnects.Wherein: the potential difference (PD) between closing circuit 7A and n29 is added in combined floodgate supervisory relay 13 after a supervisory relay 1 and combined floodgate supervisory relay 13 dividing potential drops and determines by jumping, it is 1ZTJa that potential difference (PD) between sub-gate circuit 137A and n29 is added in after by the first co-bit supervisory relay 21 and the first separating brake supervisory relay 22 dividing potential drops in the first separating brake supervisory relay 22(figure) to determine, combined floodgate supervisory relay 13, the first separating brake supervisory relay 22 must be chosen according to technical parameter (below will address).
(3) because operation circuit the first pilot relay 12, combined floodgate supervisory relay 13, the first separating brake supervisory relay all move, it often opens auxiliary contact closure, its normally closed auxiliary contact disconnects, this switch region fault signal circuit conducting, therefore at first signal loop report " the switch region fault in first group of switching manipulation loop " signal.
2,, in the time that switch moves, there is operation circuit protection zone fault,
(1) in the jumping position supervisory relay 11(figure in closing circuit, be 1TWJa, 2TWJa, 3TWJa), the first co-bit supervisory relay 21 (being 11HWJa, 12HWJa, 13HWJa in figure) in the first sub-gate circuit all decompression is failure to actuate, its normally closed auxiliary contact is all in closure state, now drive the first pilot relay 12 (in figure for 1ZKa), the first pilot relay 12 often open auxiliary contact closure.
(2) when protection zone fault, because switching mechanism is in co-bit, between closing circuit 7A and the two ends of n29 there is potential difference (PD) in open-circuit condition in circuit itself, the action of combined floodgate supervisory relay; Because switching mechanism non-fault is in waiting for tripped condition; loop resistance between 137A and n29 is equivalent to separating brake supervisory relay short circuit can not move much smaller than the first separating brake supervisory relay; simultaneously due to protection zone fault; jump position supervisory relay 11 and co-bit supervisory relay 21 and be failure to actuate, therefore the first pilot relay 12 can cannot feasible region discriminating function because of involution.
(3) because operation circuit the first pilot relay 12, combined floodgate supervisory relay 13 move, the first separating brake supervisory relay 12 is failure to actuate; it often opens auxiliary contact closure; normally closed auxiliary contact disconnects; this protection zone fault signal circuit conducting, therefore at first signal loop report " the protection zone fault in first group of switching manipulation loop " signal.
3, when switching mechanism is when stand-by heat (switch divides position, by power transmission), there is operation circuit protection zone fault,
(1) in the jumping position supervisory relay 11(figure in closing circuit, be 1TWJa, 2TWJa, 3TWJa), the first co-bit supervisory relay 21 (being 11HWJa, 12HWJa, 13HWJa in figure) in the first sub-gate circuit all decompression is failure to actuate, its normally closed auxiliary contact is all in closure state, now drive the first pilot relay 12 (in figure for 1ZKa), the first pilot relay 12 often open auxiliary contact closure.
(2), when protection zone fault, because switching mechanism is being jumped position, between sub-gate circuit 137A and n29 switching mechanism two ends, itself there is potential difference (PD) in open-circuit condition, the first separating brake supervisory relay action; Because switching mechanism non-fault is in waiting for "on" position; loop resistance between 7A and n29 is equivalent to combined floodgate supervisory relay short circuit can not move much smaller than combined floodgate supervisory relay; simultaneously due to protection zone fault; co-bit supervisory relay 11 and jump a position supervisory relay 21 and be failure to actuate, therefore the first pilot relay 12 can cannot feasible region discriminating function because of involution.
(3) because operation circuit the first pilot relay 12, the first separating brake supervisory relay 22 supervisory relay 13 that moves, closes a floodgate is failure to actuate; it often opens auxiliary contact closure; normally closed auxiliary contact disconnects; this protection zone fault signal circuit conducting, therefore produces " the protection zone fault in first group of switching manipulation loop " signal in first signal loop.
More than set forth fault zone identification system and the method in first group of switching manipulation loop in the present embodiment, the fault zone identification system in second group of switching manipulation loop in the present embodiment and method are similar to first group of switching manipulation loop.Wherein, second sub-gate circuit in this second group of switching manipulation loop is connected to this second source 300 two ends, this second sub-gate circuit comprises switching mechanism 10, the second co-bit supervisory relay 31, this second group of switching manipulation loop comprise with first group of switching manipulation loop in the second fault generation diagnostic circuit 130 and the second fault zone diagnostic circuit 140 of same circuits structure, this the second fault generation diagnostic circuit 130 comprises the second pilot relay 14, this the second fault zone diagnostic circuit 140 comprises the second separating brake supervisory relay 32, this the second separating brake supervisory relay has at least one pair of normally closed auxiliary contact and some to often driving auxiliary contact, this the second fault zone diagnostic circuit 140 comprises the region diagnostic circuit 3 141 at switching mechanism 10 two ends that are parallel to this closing circuit and is parallel to the region diagnostic circuit 4 142 at switching mechanism 10 two ends of this second sub-gate circuit, this the second fault generation diagnostic circuit 130 is selectively connected in the two ends (the second source power supply if the first power cut-off automatically switches, the first Power supply if second source power-off is automatically switched) of these the first power supply 100 two ends or second source 300.Wherein: the second co-bit supervisory relay 31 of this second fault generation diagnostic circuit and the second fault zone diagnostic circuit and auxiliary contact thereof, the second pilot relay 14 and auxiliary contact thereof, the second separating brake supervisory relay 32 and auxiliary contact difference this first co-bit supervisory relay 11 of corresponding displacement thereof and auxiliary contact thereof, the first pilot relay 12 and auxiliary contact thereof, the first separating brake supervisory relay 22 and auxiliary contact thereof;
In the present embodiment, also comprise one for generation of with the secondary signal loop of signal that shows this second group of switching manipulation loop fault region situation, this secondary signal loop is connected in the two ends of the 3rd power supply 400, this secondary signal loop and first signal loop have identical circuit structure, wherein: the auxiliary contact of often driving auxiliary contact, the second separating brake supervisory relay 32 of the second pilot relay 14 in this secondary signal loop are the auxiliary contact of often driving auxiliary contact, the first separating brake supervisory relay 22 to the first pilot relay 12 that should first signal loop respectively.
Among the present embodiment: this first pilot relay 12 and the second pilot relay 14 all have respectively three pairs and often drive auxiliary contact, this combined floodgate supervisory relay 13 has four pairs and often opens auxiliary contact and two pairs of normally closed auxiliary contacts, and this first separating brake supervisory relay 22 and the second separating brake supervisory relay 32 all have respectively two pairs and often open auxiliary contact and a pair of normally closed auxiliary contact.
The technical parameter choosing method of combined floodgate supervisory relay 13, the first separating brake supervisory relay 22, the second separating brake monitors:
Here, combined floodgate supervisory relay, separating brake supervisory relay need match with a jumping position supervisory relay, co-bit supervisory relay operation voltage.In 220kV and above operation circuit, the total resistance value of jumping position supervisory relay, the total resistance value of co-bit supervisory relay are probably respectively at 20k Ω, if total rated voltage 220V(is divided into several relays, each relay resistance value sum is 20k Ω, total rated voltage is 220V, single relay rated voltage is probably 220/n, and n is relay number; If gone here and there resistance R, each relay resistance and to be added total resistance value with resistance R be 20k Ω, single relay rated voltage is (220-220*R/20)/n); Its operation voltage should be less than 110V, and (if be divided into several relays, each actuating of relay voltage should be less than for 110/n 50% rated voltage, and n is relay number; If gone here and there resistance R, each actuating of relay voltage should be less than for (110-110*R/20)/n).In the time of operation circuit fault, jump position supervisory relay and combined floodgate supervisory relay, co-bit supervisory relay and separating brake supervisory relay form loop and carry out dividing potential drop.
When jump position a supervisory relay, co-bit supervisory relay while being failure to actuate (when operation circuit fault) simultaneously, combined floodgate supervisory relay, separating brake supervisory relay should move because of the switching mechanism fault dividing potential drop forming of open a way.In order to ensure ZHJ, ZTJ energy action message, same, if get single relay, operation voltage should be lower than 110V, and rated voltage is 220V, and resistance value should be greater than 20k Ω so; If get n relay group series connection, single actuating of relay voltage should be lower than 110/n, and rated voltage is 220/n, and so single relay resistance value should be greater than (20/n) k Ω; Connect with resistance R if get n relay, single actuating of relay voltage should be lower than (110-110*R/20)/n), rated voltage is that (220-220*R/20)/n), resistance value should be greater than (20-R)/n.
Embodiment bis-, please refers to Fig. 8 and Fig. 9:
For the switching manipulation loop below 220kV, mutually corresponding same switching manipulation loop all of each in its three-phase line, this switching manipulation loop by point, the link gear of this switching mechanism primary side of closing coil control to be to realize the divide-shut brake of threephase switch.This switching manipulation loop only includes closing circuit and a sub-gate circuit, and its fault zone identification system and method are similar with first group of switching manipulation loop or second group of switching manipulation loop in embodiment mono-.Switching manipulation loop in the present embodiment is only by a Power supply, and its fault generation diagnostic circuit is connected in this power supply.
In the present embodiment, its pilot relay has two pairs and often drives auxiliary contact, and its combined floodgate supervisory relay and separating brake supervisory relay all have respectively two pairs and often open auxiliary contact and a pair of normally closed auxiliary contact.
For the switching manipulation loop below 220kV, relay parameter system of selection in its fault generation diagnostic circuit and fault zone diagnostic circuit is with identical described in embodiment mono-, just, it jumps the total resistance value of position supervisory relay, the total resistance value of co-bit supervisory relay is probably respectively 40k Ω.
By this high-voltage switch gear operation circuit fault zone identification system and method; our maintainer can directly check fault generation area signal (switch region fault-signal or protection zone fault-signal) in remote monitoring main website; and assign the maintainer of corresponding specialty to go site disposal fault; like this; go to together scene to carry out localization of fault work without two groups of professionals; reduce labour, also shortened fault handling time, reduced the risk of expansion accident.
The above, only for preferred embodiment of the present invention, therefore can not limit according to this scope of the invention process, the equivalence of doing according to the scope of the claims of the present invention and description changes and modifies, and all should still belong in the scope that the present invention contains.
Claims (8)
1. high-voltage switch gear operation circuit fault zone identification system, is characterized in that: comprising:
Switching manipulation loop, this switching manipulation loop comprises closing circuit, sub-gate circuit, fault generation diagnostic circuit and fault zone diagnostic circuit, this closing circuit and sub-gate circuit all comprise a switching mechanism, this fault generation diagnostic circuit comprise have some to often driving the pilot relay of auxiliary contact, this fault zone diagnostic circuit comprise all have respectively some to often driving combined floodgate supervisory relay and the separating brake supervisory relay of auxiliary contact and normally closed auxiliary contact;
For generation of with the signal circuit of the signal of display switch operation circuit fault zone, this signal circuit comprises switch region fault signal circuit and protection zone fault signal circuit;
Monitor terminal and remote monitoring main website, this signal circuit signal connects this monitor terminal, and this monitor terminal network signal connects this remote monitoring main website;
This fault generation diagnostic circuit can contact this fault zone diagnostic circuit by the auxiliary contact of this pilot relay and also determine whether allow this fault zone diagnostic circuit to carry out fault zone diagnosis; this fault zone diagnostic circuit contacts this signal circuit by the auxiliary contact of this combined floodgate supervisory relay and separating brake supervisory relay; by switch region fault signal circuit and protection zone fault signal circuit, whether conducting comes this fault zone of identification to this signal circuit, and this identification result is sent to this remote monitoring main website by monitor terminal.
2. high-voltage switch gear operation circuit according to claim 1 fault zone identification system, it is characterized in that: this closing circuit comprises jumps position supervisory relay, this sub-gate circuit comprises co-bit supervisory relay, this co-bit supervisory relay and a jumping position supervisory relay all have respectively at least one pair of normally closed auxiliary contact, and this fault generation diagnostic circuit comprises the normally closed auxiliary contact of the co-bit supervisory relay being connected in series, normally closed auxiliary contact and the pilot relay of jumping position supervisory relay;
This fault zone diagnostic circuit comprises the region diagnostic circuit one being connected in closing circuit and is connected in the region diagnostic circuit two in sub-gate circuit, and this region diagnostic circuit one comprises that the combined floodgate supervisory relay at the two ends that are connected in series in this switching mechanism, the first couple of pilot relay often drive auxiliary contact; This region diagnostic circuit two comprises that the separating brake supervisory relay at the two ends that are connected in series in this switching mechanism, the second couple of pilot relay often drive auxiliary contact.
3. high-voltage switch gear operation circuit according to claim 2 fault zone identification system, is characterized in that: this switching manipulation loop also comprises the first power supply, this fault generation diagnostic circuit is connected to this first both ends of power.
4. high-voltage switch gear operation circuit according to claim 3 fault zone identification system, is characterized in that: this switching manipulation loop also comprises second source, this fault generation diagnostic circuit is selectively connected to this first both ends of power or second source two ends.
5. high-voltage switch gear operation circuit according to claim 1 fault zone identification system, is characterized in that: this switch region fault signal circuit comprises that the first couple that the first couple of the combined floodgate supervisory relay being connected in series often drives auxiliary contact, separating brake supervisory relay often drives auxiliary contact; This protection zone fault signal circuit comprises that the second couple of the combined floodgate supervisory relay being connected in series often opens first pair of normally closed auxiliary contact of auxiliary contact, separating brake supervisory relay and first pair of normally closed auxiliary contact of the combined floodgate supervisory relay that is connected in series, the second couple of separating brake supervisory relay are often driven auxiliary contact, often drives auxiliary contact and is connected in series respectively this switch region fault signal circuit, protection zone fault signal circuit for the 3rd pair of this pilot relay.
6. high-voltage switch gear operation circuit fault zone identification system according to claim 1 or 5; it is characterized in that: also comprise the optocoupler for transmitting fault zone signal; this switch region fault signal circuit and protection zone fault signal circuit are connected in series respectively this optocoupler, and this optocoupler signal connects this monitor terminal.
7. high-voltage switch gear operation circuit according to claim 2 fault zone identification system, it is characterized in that: the technical parameter of the technical parameter of this co-bit supervisory relay and separating brake supervisory relay matches, the technical parameter of this jumping position supervisory relay and the technical parameter of combined floodgate supervisory relay match.
8. high-voltage switch gear operation circuit fault zone discrimination method, the high-voltage switch gear operation circuit fault zone identification system based on described in any one in claim 1-7, is characterized in that:
In the time of switching mechanism operation or switching mechanism stand-by heat, there is operation circuit switch region fault, comprise:
Step 11, jumping position supervisory relay in closing circuit, the equal decompression of co-bit supervisory relay in sub-gate circuit is failure to actuate, co-bit supervisory relay in this fault generation diagnostic circuit and the normally closed auxiliary contact of jumping position supervisory relay be all in closure state and drive pilot relay action, and this pilot relay often open auxiliary contact closure;
Step 12, the action of the combined floodgate supervisory relay of this fault zone diagnostic circuit and separating brake supervisory relay, its correspondence often open auxiliary contact closure, normally closed auxiliary contact disconnects;
Step 13, the switch region fault signal circuit conducting of this signal circuit also sends fault zone signal by monitor terminal to remote monitoring main website;
In the time that switch moves, there is operation circuit protection zone fault, comprise:
Step 21, jumping position supervisory relay in closing circuit, the equal decompression of co-bit supervisory relay in sub-gate circuit is failure to actuate, co-bit supervisory relay in this fault generation diagnostic circuit and the normally closed auxiliary contact of jumping position supervisory relay be all in closure state and drive pilot relay action, and this pilot relay often open auxiliary contact closure;
Step 22, the combined floodgate supervisory relay action of this fault zone diagnostic circuit, its correspondence often open auxiliary contact closure, normally closed auxiliary contact disconnects, separating brake supervisory relay is failure to actuate, its correspondence often drive auxiliary contact, normally closed auxiliary contact keeps original state;
Step 23, the protection zone fault signal circuit conducting of this signal circuit also sends fault zone signal by monitor terminal to remote monitoring main website;
When switching mechanism is when stand-by heat (switch divides position, by power transmission), there is operation circuit protection zone fault, comprise:
Step 31, jumping position supervisory relay in closing circuit, the equal decompression of co-bit supervisory relay in sub-gate circuit is failure to actuate, co-bit supervisory relay in this fault generation diagnostic circuit and the normally closed auxiliary contact of jumping position supervisory relay be all in closure state and drive pilot relay action, and this pilot relay often open auxiliary contact closure;
Step 32, the separating brake supervisory relay action of this fault zone diagnostic circuit, its correspondence often open auxiliary contact closure, normally closed auxiliary contact disconnects, combined floodgate supervisory relay is failure to actuate, its correspondence often drive auxiliary contact, normally closed auxiliary contact keeps original state;
Step 33, the protection zone fault signal circuit conducting of this signal circuit also sends fault zone signal by monitor terminal to remote monitoring main website.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410101379.5A CN103837826B (en) | 2014-03-18 | 2014-03-18 | High-voltage switch gear operation circuit fault zone identification system and method |
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| CN201410101379.5A CN103837826B (en) | 2014-03-18 | 2014-03-18 | High-voltage switch gear operation circuit fault zone identification system and method |
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| CN103837826A true CN103837826A (en) | 2014-06-04 |
| CN103837826B CN103837826B (en) | 2016-08-24 |
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| CN201410101379.5A Active CN103837826B (en) | 2014-03-18 | 2014-03-18 | High-voltage switch gear operation circuit fault zone identification system and method |
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| 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 |
| CN106483423A (en) * | 2016-12-05 | 2017-03-08 | 山东钢铁股份有限公司 | A kind of trouble shoot method and device of breaker open operation electric loop |
| CN107147091A (en) * | 2017-06-12 | 2017-09-08 | 中国神华能源股份有限公司 | Method, apparatus and system for triggering fast cut back |
| CN113777531A (en) * | 2021-09-10 | 2021-12-10 | 国网江苏省电力有限公司徐州供电分公司 | Substation operation loop monitoring and fault analysis method |
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| CN113777531A (en) * | 2021-09-10 | 2021-12-10 | 国网江苏省电力有限公司徐州供电分公司 | Substation operation loop monitoring and fault analysis method |
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