CN103941155B - High-voltage switch gear control loop template domain identification circuit and discrimination method - Google Patents
High-voltage switch gear control loop template domain identification circuit and discrimination method Download PDFInfo
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- CN103941155B CN103941155B CN201410141433.9A CN201410141433A CN103941155B CN 103941155 B CN103941155 B CN 103941155B CN 201410141433 A CN201410141433 A CN 201410141433A CN 103941155 B CN103941155 B CN 103941155B
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Abstract
The invention discloses a kind of high-voltage switch gear control loop template domain identification circuit and discrimination methods, it includes switch control circuit, signal circuit, the switch control circuit includes closing circuit and sub-gate circuit, by diagnosing whether switch control circuit occurs broken string situation in switch control circuit increase broken string generation diagnostic circuit, by increasing combined floodgate supervisory relay and separating brake supervisory relay in switch control circuit to judge generation area of breaking, and broken string regional signal is generated and shown by signal circuit, decide whether the judgement for allowing broken string generation area by breaking generation diagnostic circuit, it is consequently formed switch control circuit broken string domain identification action logic.The circuit realizes the identification in switch control circuit broken string region, improves the first-aid repair efficiency of broken string circuit, saves repairing labour, greatly reduces line load loss.
Description
Technical field
The present invention relates to a kind of high-voltage switch gear control loop template domain identification circuit and discrimination methods.
Background technology
The control loop of relay protection is to ensure the important circuit of power network safety operation, relay protection high-voltage switch gear control
During circuit breaking processed, if power grid accident occurs, breaker fail protection will be started, whole busbar where excision switch is made
Into huge load loss, uniquely can overcome the disadvantages that loss is exactly to improve first-aid repair efficiency, but the country lacks effective technology at present
Means can not quickly and accurately distinguish the specific location of high-voltage switch gear control loop template generation, therefore repair processing procedure and relate to
And two groups of professionals (switch control circuit protection zone broken string repairing professional and switch region broken string repairing professional peoples
Member) cooperation lookup broken string region is carried out, cause processing time long, inefficiency expends larger labour.
The content of the invention
The present invention provides a kind of high-voltage switch gear control loop template domain identification circuits, which overcome institute in background technology
The deficiencies in the prior art stated.
The present invention solves one of used technical solution of its technical problem：
110kV and following switch control circuit broken string domain identification circuit, it includes：A, B, C phase common corresponding one is opened
Close control loop and the signal circuit for generating and showing the signal in switch control circuit broken string region, the signal circuit bag
Include signal circuit one；
The switch control circuit includes closing circuit, the first sub-gate circuit and to the closing circuit and the first sub-gate circuit
Power supply the first power supply, the closing circuit include switching mechanism, jump position supervisory relay, first broken string occur diagnostic circuit and
For judging the combined floodgate supervisory relay of the broken string generation area, which includes switching mechanism, the first conjunction position prison
Break depending on relay, first and diagnostic circuit and the first separating brake supervisory relay for judging the broken string generation area occur,
The first conjunction position supervisory relay and jump position supervisory relay all have multipair normally closed auxiliary contact, combined floodgate monitoring relay respectively
Device and the first separating brake supervisory relay all have multipair normally closed auxiliary contact and multipair normally opened auxiliary contact, the broken string region respectively
Including switch region and protection zone, which includes the switching mechanism, the protection zone include except the switching mechanism with
Outer switch control circuit part；
Diagnostic circuit occurs for the first broken string in the closing circuit and combined floodgate supervisory relay is connected in series in the switching on and shutting down
The both ends of structure, and the both ends of first power supply are connected in series in the jump position supervisory relay again；
Diagnostic circuit occurs for the first broken string in first sub-gate circuit and the first separating brake supervisory relay is connected in series in
The both ends of the switching mechanism, and the both ends of first power supply are connected in series in again with the first conjunction position supervisory relay；
The signal circuit one includes the first broken string and diagnostic circuit and broken string regional signal circuit occurs, which occurs
Diagnostic circuit is connected in series the broken string regional signal circuit, and the switch region which includes being connected in parallel is broken
Line signal circuit and protection zone disconnection signal circuit, the switch region disconnection signal circuit include the combined floodgate being connected in series monitoring
The normally opened auxiliary contact of the first couple of the normally opened auxiliary contact of the first couple of relay and the first separating brake supervisory relay, the protection zone
Disconnection signal circuit includes first pair of normally closed auxiliary contact of the first separating brake supervisory relay being connected in series, monitoring relay of closing a floodgate
The normally opened auxiliary contact of the second couple of the normally opened auxiliary contact of the second couple of device and the first separating brake supervisory relay being connected in series, conjunction
First pair of normally closed auxiliary contact of lock supervisory relay；
Diagnostic circuit, which occurs, for first broken string includes the be connected in series first normally closed auxiliary contact for closing position supervisory relay
With the normally closed auxiliary contact for jumping position supervisory relay；
Whether the first broken string generation diagnostic circuit judges that the broken string of the control loop occurs, and decide whether to allow the conjunction
Lock supervisory relay and the first separating brake supervisory relay carry out the diagnosis of broken string region, the combined floodgate supervisory relay and the first separating brake prison
The signal circuit one is contacted by its auxiliary contact depending on relay, is broken by the switch region disconnection signal circuit and protection zone
Whether line signal circuit turns on to judge the broken string region of the switch control circuit.
Among one embodiment：The signal circuit one further includes power supply monitoring signal circuit, including the combined floodgate being connected in series
Second pair of normally closed auxiliary contact of supervisory relay and second pair of normally closed auxiliary contact of the first separating brake supervisory relay, the power supply
Monitoring signals circuit occurs diagnostic circuit with first broken string and is connected in series, and is connected with the broken string regional signal circuit in parallel.
Among one embodiment：It further includes to transfer the optocoupler of broken string regional signal, the switch region disconnection signal
Circuit and protection zone disconnection signal circuit are connected in series an optocoupler respectively.
Among one embodiment：Further include to transfer the optocoupler of signal, the switch region disconnection signal circuit, protection
Region disconnection signal circuit, power supply monitoring signal circuit are connected in series an optocoupler respectively.
The present invention solve its technical problem used technical solution second is that：
220kV and more than switch control circuit broken string domain identification circuit, are controlled based on the 110kV and with lower switch
Circuit breaking domain identification circuit, it includes corresponding three switch control circuits of A, B, C phase, the switch control circuit bag
Include closing circuit, the first sub-gate circuit, the second sub-gate circuit, the first power supply and the second electricity to second sub-gate circuit power supply
Source, second sub-gate circuit include switching mechanism, the second separating brake supervisory relay, the second conjunction position supervisory relay and the second broken string
Generation diagnostic circuit, the closing circuit further include the second broken string and diagnostic circuit occur, which has more
To normally closed auxiliary contact, the second separating brake supervisory relay has multipair normally closed auxiliary contact and multipair normally opened auxiliary contact；
Diagnostic circuit occurs for the second broken string in the closing circuit and combined floodgate supervisory relay is connected in series in the switching on and shutting down
The both ends of structure, and it is connected in series in the jump position supervisory relay both ends of first power supply；In second sub-gate circuit
The both ends that diagnostic circuits and the second separating brake supervisory relay are connected in series in the switching mechanism occur for two broken strings, and second are closed with this
Position supervisory relay is connected in series in the both ends of the second source；Wherein：Diagnostic circuit, which occurs, for second broken string has and first
The identical circuit structure of diagnostic circuit occurs for broken string, and it is first disconnected that the normally closed auxiliary contact of the second conjunction position supervisory relay corresponds to this
The first of the diagnostic circuit normally closed auxiliary contact for closing position supervisory relay occurs for line；
Further include to generate and show the signal circuit of the signal in corresponding switch control circuit broken string region, which returns
Road includes signal circuit one and signal circuit two, which has and the identical circuit structure of signal circuit one, wherein：
The auxiliary contact of the second separating brake supervisory relay in the signal circuit two and the second auxiliary contact for closing position supervisory relay divide
The auxiliary contact of the first separating brake supervisory relay in the signal circuit one and the auxiliary of the first conjunction position supervisory relay are not corresponded to
Contact.
What the present invention solved the used technical solution of its technical problem three is：
High-voltage switch gear control loop template domain identification method, is broken based on above-mentioned 110kV and following switch control circuit
Line domain identification circuit and above-mentioned 220kV and more than switch control circuit broken string domain identification circuit, including following several
Recognize step：
When switching mechanism is in operation or switching mechanism hot stand-by duty, control loop switch region broken string, bag occurs
It includes：
Step 11, the jump position supervisory relay in closing circuit, the equal decompression of conjunction position supervisory relay in sub-gate circuit is not
Action, normally closed auxiliary contact are in closure state, i.e., diagnostic circuit conducting occurs for broken string, and is diagnosed to be the switch and controls back
Break on road；
Step 12, when switch region is broken, between closing circuit switching mechanism both ends, 10 both ends of sub-gate circuit switching mechanism
Between be equivalent to open circuit and there are potential difference, jump position supervisory relay at this time and close position supervisory relay and be failure to actuate, monitoring of closing a floodgate
Relay and separating brake supervisory relay 22 act, and normally opened auxiliary contact are closed, and normally closed auxiliary contact disconnects；
Step 13, since the combined floodgate supervisory relay of control loop, separating brake supervisory relay act, normally opened auxiliary is touched
Point is closed, and normally closed auxiliary contact disconnects, the switch region disconnection signal circuit turn-on, and signal circuit generates, and " switch controls back
Switch region broken string " the signal on road；
When switching operation, control loop protection zone broken string occurs, including
Step 21, the jump position supervisory relay in closing circuit, the equal decompression of conjunction position supervisory relay in sub-gate circuit is not
Action, normally closed auxiliary contact are in closure state, i.e., diagnostic circuit conducting occurs for broken string, and is diagnosed to be the switch and controls back
Break on road；
Step 22, when protection zone is broken, switching mechanism is closing position, is in and opens between the switching mechanism both ends of closing circuit
Line state and there are potential difference, the action of combined floodgate supervisory relay；Tripped condition is waited because switching mechanism fault-free is in, separating brake returns
Loop resistance between the switching mechanism both ends on road is equivalent to separating brake supervisory relay is short much smaller than separating brake supervisory relay
It connects without acting；
Step 23, since the action of combined floodgate supervisory relay, separating brake supervisory relay are failure to actuate, normally opened auxiliary contact close
It closes, normally closed auxiliary contact disconnects, the protection zone disconnection signal circuit turn-on, and signal circuit generates the " guarantor of switch control circuit
Protect region broken string " signal；
When switching mechanism is in stand-by heat, control loop protection zone broken string occurs, including
Step 31, the jump position supervisory relay in closing circuit, the equal decompression of conjunction position supervisory relay in sub-gate circuit is not
Action, normally closed auxiliary contact are in closure state, i.e., diagnostic circuit conducting occurs for the first broken string, and is diagnosed to be the switch control
Break in circuit processed；
Step 32, when protection zone broken string, because switching mechanism sheet between jump position, the switching mechanism both ends of sub-gate circuit
It is in open-circuit condition there are potential difference, separating brake supervisory relay acts；"on" position is waited because switching mechanism is in without broken string,
Loop resistance between the switching mechanism both ends of closing circuit be equivalent to much smaller than combined floodgate supervisory relay will close a floodgate monitoring after
13 short circuit of electric appliance is without acting；
Step 33, since the action of separating brake supervisory relay, combined floodgate supervisory relay are failure to actuate, normally opened auxiliary contact close
It closes, normally closed auxiliary contact disconnects, the protection zone disconnection signal circuit turn-on, and signal circuit generates the " guarantor of switch control circuit
Protect region broken string " signal.
Compared with background technology, it has the following advantages that the technical program：
It is supervised by installing combined floodgate supervisory relay and separating brake in the closing circuit and sub-gate circuit in switch control circuit
Depending on relay, by the use of them and close position supervisory relay and jump the auxiliary contact of position supervisory relay and transfer Jie as signal
Matter realizes the automatic identification of switch control circuit switch region broken string and protection zone broken string, according to the identification in the broken string region
As a result (switch region is broken or protection zone broken string), only needs to set out the area that accordingly breaks during circuit breaking repairing is carried out
The repair personnel in domain is repaired, without setting out switch region broken string and protection zone two kinds of professional repairings of broken string simultaneously
Personnel carry out investigation to scene and confirm broken string generation area, reduce the consuming of labour, also improve first-aid repair efficiency, so as to drop
Low load loss.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 depicts the closing circuit schematic diagram of the A phase switch control circuits of the present embodiment one.
Fig. 2 depicts the first sub-gate circuit schematic diagram of the A phase switch control circuits of the present embodiment one.
Fig. 3 depicts the second sub-gate circuit schematic diagram of the A phase switch control circuits of the present embodiment one.
Fig. 4 depicts one schematic diagram of signal circuit of the present embodiment one.
Fig. 5 depicts two schematic diagram of signal circuit of the present embodiment one.
Fig. 6 depicts the overall connection signal of the closing circuit of the switch control circuit in the present embodiment two, sub-gate circuit
Figure.
Fig. 7 depicts one schematic diagram of signal circuit in the present embodiment two.
Specific embodiment
Embodiment one refer to Fig. 1 to Fig. 5：
For the switch control circuit of 220kV and above, each phase of three-phase line A, B, C phase corresponds to respectively
One switch control circuit and the signal circuit for generating and showing the signal in switch control circuit broken string region.Each phase
Switch control circuit include closing circuit, the first sub-gate circuit, the second sub-gate circuit, the first power supply 100 and give this second point
The second source 200 of lock loop power supply；The closing circuit and the first sub-gate circuit form first group of switch control circuit, the combined floodgate
Circuit and the second sub-gate circuit form second group of switch control circuit.
Switch control circuit broken string region includes switch region and protection zone, which includes the switching on and shutting down
Structure, the protection zone include the switch control circuit part in addition to the switching mechanism.
The broken string domain identification circuit and discrimination method of first group of switch control circuit：
The closing circuit and the first sub-gate circuit are connected to the both ends of first power supply 100, which includes switch
The broken string of position supervisory relay 11, first generation diagnostic circuit 110 and the conjunction for judging the broken string generation area are jumped by mechanism 10
Lock supervisory relay 13, first sub-gate circuit include switching mechanism 10, first and close the broken string generation of position supervisory relay 21, first
Diagnostic circuit 110 and the first separating brake supervisory relay 22 for judging the broken string generation area, this first close position monitoring after
Electric appliance 21 and jump position supervisory relay 11 all have several to normally closed auxiliary contact, the combined floodgate supervisory relay 13 and first respectively
Separating brake supervisory relay 22 all has multipair normally closed auxiliary contact and multipair normally opened auxiliary contact respectively；
Diagnostic circuit 110, which occurs, for first broken string includes the be connected in series first normally closed auxiliary for closing position supervisory relay 21
Contact and the normally closed auxiliary contact for jumping position supervisory relay 11.
Diagnostic circuit 110 occurs for the first broken string in the closing circuit and combined floodgate supervisory relay 13 is connected in series in this and opens
The both ends of shutting mechanism 10, and the both ends of first power supply 100 are connected in series in the jump position supervisory relay 11 again；
The first broken string in the sub-gate circuit occurs 110 and first separating brake supervisory relay 22 of diagnostic circuit and is connected in series in
The both ends of the switching mechanism 10, and the both ends of first power supply 100 are connected in series in again with the first conjunction position supervisory relay 21；
The signal circuit includes the signal for generating and showing first group of switch control circuit broken string areas case
Signal circuit one, the signal circuit one include the first broken string and diagnostic circuit 110 and broken string regional signal circuit occur, this is first disconnected
Line occurs diagnostic circuit 110 and is connected in series the broken string regional signal circuit, which includes what is be connected in parallel
Switch region disconnection signal circuit 410 and protection zone disconnection signal circuit 420, the switch region disconnection signal circuit 410 wrap
Include the combined floodgate supervisory relay 13 being connected in series the normally opened auxiliary contact of the first couple and the first separating brake supervisory relay 22 first
To normally opened auxiliary contact, which includes the first separating brake supervisory relay 22 being connected in series
First pair of normally closed auxiliary contact, the normally opened auxiliary contact of the second couple of combined floodgate supervisory relay 13 and the first separating brake being connected in series
The normally opened auxiliary contact of the second couple of supervisory relay 22, first pair of normally closed auxiliary contact of combined floodgate supervisory relay 13；This implementation
In example, which further includes power supply monitoring signal circuit 430, including the combined floodgate supervisory relay 13 that is connected in series
Second pair of normally closed auxiliary contact of second pair of normally closed auxiliary contact and the first separating brake supervisory relay 22, power supply monitoring signal electricity
Road 430 occurs diagnostic circuit 110 with first broken string and is connected in series, and is connected with the broken string regional signal circuit in parallel.
In the present embodiment, the closing circuit and the first sub-gate circuit all further include one first adaptation resistance circuit 120 respectively,
The first adaptation resistance circuit 120 includes the be connected in series first broken string and diagnostic circuit 110 and at least one adaptation resistance 12 occurs,
The first adaptation resistance circuit 120 in the closing circuit is connected in parallel the jump position supervisory relay 11 and monitors relay with the combined floodgate
Device 13 is connected in series in the both ends 100 of first power supply, and the first adaptation resistance circuit 120 in the sub-gate circuit is connected in parallel this
First conjunction position supervisory relay 21 is simultaneously connected in series in the both ends of first power supply 100 with the first separating brake supervisory relay 22.
In the present embodiment, the switch region disconnection signal circuit 410, protection zone disconnection signal circuit 420, power supply monitoring
Signal circuit 430 is connected in series to transfer the optocoupler 41 of signal respectively.In one better embodiment, the three-phase line
Each corresponding power supply monitoring signal circuit 430 can connect same optocoupler simultaneously, and all be sent by the optocoupler
Power supply monitoring signal (power supply power on signal or power off signal).
Whether the first broken string generation diagnostic circuit 110 judges that the broken string of the control loop occurs, and decide whether to allow
The 13 and first separating brake supervisory relay 22 of combined floodgate supervisory relay carries out the diagnosis of broken string region, 13 He of combined floodgate supervisory relay
First separating brake supervisory relay 22 contacts the signal circuit one by its normally opened auxiliary contact and normally closed auxiliary contact, which returns
Whether road one turns on to judge that this is opened by the switch region disconnection signal circuit 410 and protection zone disconnection signal circuit 420
The broken string region of control loop is closed, and the identification result is transmitted to remote monitoring main website by monitor terminal.
It is divided into the logical action principle that three kinds of situations illustrate first group of switch control circuit broken string domain identification below：
1st, when switching mechanism is in operation or switching mechanism stand-by heat (switch divides position, i.e., by power transmission) state, control
Circuit switching region broken string processed, then
(1) the jump position supervisory relay 11 in closing circuit, the first conjunction position supervisory relay 21 in sub-gate circuit lose
Pressure is failure to actuate, and normally closed auxiliary contact is in closure state, i.e., diagnostic circuit conducting occurs for the first broken string, and be diagnosed to be this
One group of switch control circuit breaks.
(2) when switch region is broken, between 10 both ends of closing circuit switching mechanism (in figure between 7A and n29), first
Be equivalent to open circuit between 10 both ends of sub-gate circuit switching mechanism (in figure between 137A and n29), 7A and n29,137A and n29 it
Between there are potential difference, jumping position supervisory relay 11 and first at this time and closing position supervisory relay 21 should not act, monitoring relay of closing a floodgate
12 and first separating brake supervisory relay 22 of device acts, and normally opened auxiliary contact are closed, and normally closed auxiliary contact disconnects.Wherein：It closes a floodgate
Potential difference between circuit 7A and n29 is adapted to the parallel connection of resistance circuit 120 again with first by jump position supervisory relay 11 and is closed a floodgate
Supervisory relay 13 is added in the voltage of combined floodgate supervisory relay 13 after dividing and determines, the current potential between sub-gate circuit 137A and n29
The parallel connection that difference is adapted to resistance circuit 120 by the first conjunction position supervisory relay 21 with first divides again with the first separating brake supervisory relay 22
The voltage that the first separating brake supervisory relay 22 is added in after pressure determines.
(3) since the combined floodgate supervisory relay 13 of control loop, the first separating brake supervisory relay act, normally opened auxiliary
Contact closure, normally closed auxiliary contact disconnect, the switch region disconnection signal circuit turn-on, therefore signal circuit one reports " first
Switch region broken string " the signal of group switch control circuit.
2nd, when switching operation, control loop protection zone broken string occurs, then
(1) the jump position supervisory relay 11 in closing circuit, first in the first sub-gate circuit closes position supervisory relay 21
Equal decompression is failure to actuate, and normally closed auxiliary contact is in closure state, i.e., diagnostic circuit conducting occurs for the first broken string, and is diagnosed to be
First group of switch control circuit breaks.
(2) when protection zone broken string, because switching mechanism circuit sheet between conjunction position, the both ends of closing circuit 7A and n29
It is in open-circuit condition there are potential difference, combined floodgate supervisory relay acts；Tripped condition is waited because switching mechanism fault-free is in,
Loop resistance between 137A and n29 is equivalent to much smaller than the first separating brake supervisory relay by the first separating brake supervisory relay 22
Short circuit is without acting, simultaneously because protection zone is broken, jumps position supervisory relay 11 and first and closes position supervisory relay 21 not
Action, therefore the first broken string generation diagnostic circuit will not can not realize domain identification function because of being not turned on.
(3) since combined floodgate supervisory relay 13 acts, the first separating brake supervisory relay 22 is failure to actuate, normally opened auxiliary contact
It being closed, normally closed auxiliary contact disconnects, the protection zone disconnection signal circuit turn-on, therefore in " first group of the first signal circuit report
Protection zone broken string " the signal of switch control circuit.
3rd, when switching mechanism is in stand-by heat (switch divides position, i.e., by power transmission), control loop protection zone broken string occurs,
Then
(1) the jump position supervisory relay 11 in closing circuit, first in the first sub-gate circuit closes position supervisory relay 21
Equal decompression is failure to actuate, and normally closed auxiliary contact is in closure state, i.e., diagnostic circuit conducting occurs for the first broken string, and is diagnosed to be
First group of switch control circuit breaks.
(2) when protection zone is broken because switching mechanism is jumping position, sub-gate circuit 137A and n29 switching mechanisms both ends it
Between itself in open-circuit condition there are potential difference, the first separating brake supervisory relay 22 acts；Because switching mechanism without broken string in etc.
Treat "on" position, the loop resistance between 7A and n29, which is equivalent to close a floodgate much smaller than combined floodgate supervisory relay 13, monitors relay
13 short circuit of device is without acting, simultaneously because protection zone is broken, first closes position supervisory relay 11 and jump position supervisory relay
21 are failure to actuate, therefore the first broken string generation diagnostic circuit will not can not realize domain identification function because of being not turned on.
(3) since the first separating brake supervisory relay 22 acts, combined floodgate supervisory relay 13 is failure to actuate, normally opened auxiliary contact
It is closed, normally closed auxiliary contact disconnects, the protection zone disconnection signal circuit turn-on, therefore generates " first in the first signal circuit
Protection zone broken string " the signal of group switch control circuit.
The broken string domain identification circuit and method of first group of switch control circuit in the present embodiment, this implementation is explained above
The broken string domain identification circuit and method of second group of switch control circuit in example are similar to first group of switch control circuit.Its
In, the second sub-gate circuit of second group of switch control circuit is connected to 200 both ends of second source, the second sub-gate circuit bag
It includes switching mechanism 10, second and closes position supervisory relay 31, the second separating brake supervisory relay 32, second broken string generation diagnostic circuit
130, which has several to normally opened auxiliary contact and normally closed auxiliary contact, the second conjunction position monitoring
Relay 31 has multipair normally closed auxiliary contact.Second broken string occurs diagnostic circuit 130 and is diagnosed with breaking with first
The normally closed auxiliary of the second conjunction position supervisory relay 31 in diagnostic circuit occurs for the identical circuit structure of circuit 110, second broken string
Contact is helped to correspond to first broken string, the first of diagnostic circuit 110 normally closed auxiliary contact for closing position supervisory relay 21, the conjunction occurs
Diagnostic circuit 130 occurs for the second broken string in lock circuit and combined floodgate supervisory relay 13 is connected in series in the two of the switching mechanism 10
End, and be connected in series in the jump position supervisory relay 11 both ends of first power supply 100, second sub-gate circuit have and the
The identical circuit structure of one sub-gate circuit, the second separating brake supervisory relay 32 and second in second sub-gate circuit diagnose
Diagnostic circuit 110 occurs for the first separating brake supervisory relay 22 and first that circuit 130 is corresponded in first sub-gate circuit, this second
The second broken string in sub-gate circuit occurs 130 and second separating brake supervisory relay 32 of diagnostic circuit and is connected in series in the switching mechanism
10 both ends, and it is connected in series in the both ends of the second source 200 with the second conjunction position supervisory relay 31.
In the present embodiment, the closing circuit and the second sub-gate circuit all further include one second adaptation resistance circuit 140 respectively,
The second adaptation resistance electricity, 140, which include the be connected in series second broken string, occurs diagnostic circuit 130 and at least one adaptation resistance 12,
The second adaptation resistance circuit 140 in the closing circuit is connected in parallel the jump position supervisory relay 11 and monitors relay with the combined floodgate
Device 13 is connected in series in the both ends of first power supply 100, and the second adaptation resistance circuit 140 in the sub-gate circuit is connected in parallel this
Second conjunction position supervisory relay 31 is simultaneously connected in series in the both ends of the second source 200 with the second separating brake supervisory relay 32.
The broken string domain identification circuit of second group of switch control circuit includes generating and showing second group of switch
The signal circuit two of the signal of control loop template areas case, which has and the identical circuit of signal circuit one
Structure, wherein：The auxiliary contact of the second separating brake supervisory relay 32 in the signal circuit two and the second conjunction position supervisory relay
31 auxiliary contact correspond to auxiliary contact and the first conjunction position of the first separating brake supervisory relay 22 in the signal circuit one respectively
The auxiliary contact of supervisory relay 21.
In the present embodiment, during in order to make control loop template, jumping position supervisory relay 11, with first, second to be adapted to resistance electric
The parallel connection on road 120 (140) can be adapted to resistance circuit with combined floodgate supervisory relay 13, the first conjunction position supervisory relay 21 with first
120 parallel connection can be adapted to resistance circuit with the first separating brake supervisory relay 22 and the second conjunction position supervisory relay 31 with second
140 it is in parallel can be each formed with the loop voltage-distributing of effect respectively with the second separating brake supervisory relay 32 with ensure combined floodgate monitoring after
13 and first, second separating brake supervisory relay 22 (32) of electric appliance can be acted by default broken string domain identification logic, should
The resistance value summation of adaptation resistance 12 should be selected in 40k Ω or so.Under normal circumstances, combined floodgate supervisory relay 13 and first, second
The resistance value of separating brake supervisory relay 22 (32) is less than 30k Ω, and some first, second conjunction position supervisory relays 21 (31) or jump
The resistance value of position supervisory relay 11 can reach 40k Ω, therefore close position prison in the jump position supervisory relay 11 and first, second
The adaptation resistance circuit 140 of resistance circuit 120 and second is adapted to by parallel connection first respectively depending on relay 21 (31) to ensure the conjunction
The loop voltage-distributing of 13 and first, second separating brake supervisory relay 22 (32) of lock supervisory relay is more than the jump position supervisory relay 11
Resistance circuit 120, second is adapted to first respectively with first, second conjunction position supervisory relay 21 (31) and is adapted to resistance circuit 140
Partial pressure in parallel, the 13 and first, second separating brake supervisory relay 22 (32) of combined floodgate supervisory relay is made effectively can reliably to move
Make, and the resistance value of the 13 and first, second separating brake supervisory relay 22 (32) of combined floodgate supervisory relay may be selected more than 20k Ω
.If not including the first adaptation resistance circuit 120 and second in the closing circuit and first, second sub-gate circuit is adapted to resistance
Circuit 140, then in order to enable the combined floodgate supervisory relay, the first separating brake supervisory relay and the second separating brake supervisory relay by
It is acted according to default broken string domain identification logic, the jump position supervisory relay and combined floodgate supervisory relay, the first conjunction position
Supervisory relay is respectively required for the first separating brake supervisory relay, the second conjunction position supervisory relay with the second separating brake supervisory relay
Meet resistors match relation, wherein, the resistance value of the combined floodgate supervisory relay, which need to be more than, jumps position supervisory relay, first separating brake prison
Resistance value depending on relay need to be more than the first conjunction position supervisory relay, and the resistance value of the second separating brake supervisory relay need to be more than second and close
Position supervisory relay.
Embodiment two, refer to Fig. 6 and Fig. 7：
For 110kV and following switch control circuit, each phase in three-phase line all corresponds to same switch control
Circuit, the switch control circuit control the linkage mechanism of the switching mechanism primary side to realize that three-phase is opened by switching on and off coil
The divide-shut brake of pass.The switch control circuit only includes closing circuit and the first sub-gate circuit, the domain identification system that breaks and side
Method is similar with first group of switch control circuit in embodiment one or second group of switch control circuit.
By the high-voltage switch gear control loop template domain identification circuit, our service personnel can pass through remote monitoring master
The broken string generation area signal reported and submitted by the optocoupler on the circuit is checked at station, and (switch region disconnection signal or protection zone are broken
Line signal), and assign the service personnel of corresponding specialty that in-situ processing is gone to break, in this way, going to scene together without two groups of professionals
Broken string positioning work is carried out, reduces labour, also shortens the break line treatment time, reduce the risk of expansion accident.
The above is only present pre-ferred embodiments, therefore cannot limit the scope implemented of the present invention according to this, i.e., according to
The equivalent changes and modifications that the scope of the claims of the present invention and description are made all should still belong in the range of the present invention covers.
Claims (4)
1.110kV and following switch control circuit broken string domain identification circuit, it is characterised in that：Including：A, B, C phase are jointly corresponding
A switch control circuit and for generate and show the switch control circuit broken string region signal signal circuit, the signal
Circuit includes signal circuit one；
The switch control circuit includes closing circuit, the first sub-gate circuit and powers to the closing circuit and the first sub-gate circuit
The first power supply, the closing circuit include be connected switching mechanism, jump position supervisory relay power end, first broken string occur
Diagnostic circuit one and the power end for judging the combined floodgate supervisory relay of the broken string generation area, the first sub-gate circuit bag
The switching mechanism being connected, the power end of the first conjunction position supervisory relay, the first broken string is included diagnostic circuit two occurs and is used for
Judge the power end of the first separating brake supervisory relay of the broken string generation area, the first conjunction position supervisory relay and the monitoring of jump position
Relay all has multipair normally closed auxiliary contact respectively, and the combined floodgate supervisory relay and the first separating brake supervisory relay all have respectively
There are multipair normally closed auxiliary contact and multipair normally opened auxiliary contact, which includes switch region and protection zone, the switch
Region includes the switching mechanism, which includes the switch control circuit part in addition to the switching mechanism；
Diagnostic circuit one occurs for the first broken string in the closing circuit and the power end of combined floodgate supervisory relay is connected in series in this
The both ends of switching mechanism, then it is connected in series in the jump position supervisory relay both ends of first power supply；
The power end series connection of two and first separating brake supervisory relay of diagnostic circuit occurs for the first broken string in first sub-gate circuit
The both ends of the switching mechanism are connected to, then the both ends of first power supply are connected in series in the first conjunction position supervisory relay；
The signal circuit one includes the first broken string and diagnostic circuit three and broken string regional signal circuit one occurs, which occurs
Diagnostic circuit three is connected in series the broken string regional signal circuit one, which includes the switch being connected in parallel
Region disconnection signal circuit one and protection zone disconnection signal circuit one, the switch region disconnection signal circuit one include series connection and connect
The normally opened auxiliary contact of the first couple of the combined floodgate supervisory relay connect and the normally opened auxiliary of the first couple of the first separating brake supervisory relay are touched
Point, the normally closed auxiliary of the first couple which includes the first separating brake supervisory relay being connected in series are touched
The second couple of point, the normally opened auxiliary contact of the second couple of combined floodgate supervisory relay and the first separating brake supervisory relay being connected in series
First pair of normally closed auxiliary contact of normally opened auxiliary contact, combined floodgate supervisory relay；
Diagnostic circuit one, which occurs, for first broken string includes the be connected in series first normally closed auxiliary of the first couple for closing position supervisory relay
Contact and first pair of normally closed auxiliary contact for jumping position supervisory relay；Diagnostic circuit two, which occurs, for first broken string includes being connected in series
First close position supervisory relay second pair of normally closed auxiliary contact and jump position supervisory relay second pair of normally closed auxiliary contact；
Diagnostic circuit three, which occurs, for first broken string includes the be connected in series first the 3rd pair of normally closed auxiliary contact for closing position supervisory relay
With the 3rd pair of normally closed auxiliary contact for jumping position supervisory relay；
Whether the first broken string generation diagnostic circuit one, two, three judges that the broken string of the control loop occurs, and decide whether to allow
The combined floodgate supervisory relay and the first separating brake supervisory relay carry out the diagnosis of broken string region, the combined floodgate supervisory relay and first point
Lock supervisory relay contacts the signal circuit one by its auxiliary contact, passes through the switch region disconnection signal circuit and protection zone
Whether domain disconnection signal circuit turns on to judge the broken string region of the switch control circuit.
2. 110kV according to claim 1 and following switch control circuit broken string domain identification circuit, it is characterised in that：
The signal circuit one further includes power supply monitoring signal circuit, and the second couple of the combined floodgate supervisory relay including being connected in series is normally closed
Second pair of normally closed auxiliary contact of auxiliary contact and the first separating brake supervisory relay, the power supply monitoring signal circuit are first disconnected with this
Line occurs diagnostic circuit three and is connected in series, and is connected with the broken string regional signal circuit in parallel.
3. 110kV according to claim 1 and following switch control circuit broken string domain identification circuit, it is characterised in that：
It further includes to transfer the optocoupler of broken string regional signal, the switch region disconnection signal circuit and protection zone disconnection signal
Circuit is connected in series an optocoupler respectively.
4. 110kV according to claim 2 and following switch control circuit broken string domain identification circuit, it is characterised in that：
Further include to transfer the optocoupler of signal, the switch region disconnection signal circuit, protection zone disconnection signal circuit, power supply
Monitoring signals circuit is connected in series an optocoupler respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410141433.9A CN103941155B (en) | 2014-04-09 | 2014-04-09 | High-voltage switch gear control loop template domain identification circuit and discrimination method |
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| CN201410141433.9A CN103941155B (en) | 2014-04-09 | 2014-04-09 | High-voltage switch gear control loop template domain identification circuit and discrimination method |
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| CN103941155B true CN103941155B (en) | 2018-06-05 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412273B (en) * | 2018-12-21 | 2020-06-23 | 重庆樱花能源科技有限公司 | Remote supervision system for base station power supply |
| CN109696624B (en) * | 2019-01-15 | 2021-06-15 | 中国南方电网有限责任公司超高压输电公司南宁监控中心 | Monitoring method and system for disconnecting link control loop |
| CN110146773A (en) * | 2019-06-20 | 2019-08-20 | 广东电网有限责任公司 | A kind of monitoring of control loop and fault coverage judgement system |
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| CN103941155A (en) | 2014-07-23 |
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