CN203825144U - Circuit for identifying broken line area of switch control circuit - Google Patents
Circuit for identifying broken line area of switch control circuit Download PDFInfo
- Publication number
- CN203825144U CN203825144U CN201420170482.0U CN201420170482U CN203825144U CN 203825144 U CN203825144 U CN 203825144U CN 201420170482 U CN201420170482 U CN 201420170482U CN 203825144 U CN203825144 U CN 203825144U
- Authority
- CN
- China
- Prior art keywords
- circuit
- supervisory relay
- broken string
- auxiliary contact
- series
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 230000003044 adaptive effect Effects 0.000 claims description 39
- 230000007246 mechanism Effects 0.000 claims description 38
- 230000009191 jumping Effects 0.000 claims description 22
- 238000003745 diagnosis Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 abstract 1
- 208000037805 labour Diseases 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012850 discrimination method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
The utility model discloses a circuit for identifying a broken line area of a switch control circuit. The circuit comprises a switch control circuit and a signal circuit. The switch control circuit comprises a closing circuit and an opening circuit. A broken line diagnosing circuit is added in the switch control circuit in order to diagnose whether the switch control circuit generates a broken line. A closing monitoring relay and an opening monitoring relay are added in the switch control circuit in order to determine a broken line generating area and a broken line area signal is generated and displayed through the signal circuit. The broken line diagnosing circuit determines whether the broken line generating area is allowed and thus generates switch control circuit broken line area identification operation logic. The circuit achieves identification of the switch control circuit broken line area, improves repairing efficiency of the broken line, reduces repairing labors and greatly decreases line load loss.
Description
Technical field
The utility model relates to a kind of switch control circuit broken string domain identification circuit.
Background technology
The control loop of relay protection is the important loop that ensures power network safety operation, during relay protection high-voltage switch gear control loop broken string, 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 control loop broken string occurs, therefore rushing to repair processing procedure relates to two groups of professionals (switch control circuit protection zone broken string repairing professional and switch region broken string repairing professional) and coordinates and search the region of breaking, cause the processing time long, inefficiency, expend larger labour.
Utility model content
The utility model provides a kind of switch control circuit broken string domain identification circuit, and it has overcome the deficiencies in the prior art described in background technology.
One of technical scheme adopting that the utility model solves its technical matters is:
110kV and following switch control circuit broken string domain identification circuit, it comprises: A, B, C mutually a common corresponding switch control circuit and for generation of with the signal circuit of signal that shows this switch control circuit broken string region, this signal circuit comprises signal circuit one;
This switch control circuit comprises closing circuit, the first sub-gate circuit and give the first power supply of this closing circuit and the first sub-gate circuit power supply, this closing circuit comprises switching mechanism, jump position supervisory relay, there is diagnostic circuit and for judging the combined floodgate supervisory relay of this broken string generation area in the first broken string, this first sub-gate circuit comprises switching mechanism, the first co-bit supervisory relay, there is diagnostic circuit and for judging the first separating brake supervisory relay of this broken string generation area in the first broken string, this the first co-bit supervisory relay and a jumping position supervisory relay all have respectively multipair normally closed auxiliary contact, this combined floodgate supervisory relay and the first separating brake supervisory relay all have respectively multipair normally closed auxiliary contact and the multipair auxiliary contact of often opening, this broken string region comprises switch region and protection zone, this switch region comprises this switching mechanism, this protection zone comprises except the switch control circuit part this switching mechanism,
There is diagnostic circuit and combined floodgate supervisory relay and be connected in series in the two ends of this switching mechanism in first in this closing circuit broken string, and is connected in series in the two ends of this first power supply with this jumping position supervisory relay again;
There is diagnostic circuit and the first separating brake supervisory relay and be connected in series in the two ends of this switching mechanism in first in this first sub-gate circuit broken string, and is connected in series in the two ends of this first power supply with this first co-bit supervisory relay again;
This closing circuit and the first sub-gate circuit all also comprise respectively one first adaptive resistance circuit, this first adaptive resistance circuit comprises that diagnostic circuit and at least one adaptive resistance occur the first broken string being connected in series, be connected in parallel this jumping position supervisory relay be connected in series in the two ends of this first power supply with this combined floodgate supervisory relay of the first adaptive resistance circuit in this closing circuit, be connected in parallel this first co-bit supervisory relay be connected in series in the two ends of this first power supply with this first separating brake supervisory relay of the first adaptive resistance circuit in this sub-gate circuit;
This signal circuit one comprises the first broken string generation diagnostic circuit and broken string regional signal circuit, there is diagnostic circuit and be connected in series this broken string regional signal circuit in this first broken string, this broken string regional signal circuit comprises the switch region disconnection signal circuit and the protection zone disconnection signal circuit that are connected in parallel, this switch region disconnection 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 and the first separating brake supervisory relay often drives auxiliary contact, this protection zone disconnection signal circuit comprises first pair of normally closed auxiliary contact of the first separating brake supervisory relay being connected in series, the second couple of combined floodgate supervisory relay often drives auxiliary contact and the second couple of the first separating brake supervisory relay of being connected in series often drives auxiliary contact, first pair of normally closed auxiliary contact of combined floodgate supervisory relay,
There is the normally closed auxiliary contact that diagnostic circuit comprises the normally closed auxiliary contact of the first co-bit supervisory relay being connected in series and jumps position supervisory relay in this first broken string;
There is diagnostic circuit and judge that whether the broken string of this control loop occurs in this first broken string; and determine whether to allow the break region diagnosis of this combined floodgate supervisory relay and the first separating brake supervisory relay; this combined floodgate supervisory relay and the first separating brake supervisory relay contact this signal circuit one by its auxiliary contact, by this switch region disconnection signal circuit and protection zone disconnection signal circuit whether conducting judge the broken string region of this switch control circuit.
Among one embodiment: this signal circuit one also comprises power supply monitoring signal circuit, it comprises the second pair of normally closed auxiliary contact of the combined floodgate supervisory relay that is connected in series and second pair of normally closed auxiliary contact of the first separating brake supervisory relay, there is diagnostic circuit and be connected in series in this power supply monitoring signal circuit and this first broken string, and is connected in parallel with this broken string regional signal circuit.
Among one embodiment: also comprise the optocoupler for transmitting broken string regional signal, this switch region disconnection signal circuit and protection zone disconnection signal circuit are connected in series respectively an optocoupler.
Among one embodiment: also comprise the optocoupler for transmission of signal, this switch region disconnection signal circuit, protection zone disconnection signal circuit, power supply monitoring signal circuit are connected in series respectively an optocoupler.
The utility model solve its technical matters the technical scheme adopting two be:
220kV and above switch control circuit broken string domain identification circuit, 110kV based on described and following switch control circuit broken string domain identification circuit, it comprises A, B, C distinguishes three corresponding switch control circuits mutually, this switch control circuit comprises closing circuit, the first sub-gate circuit, the second sub-gate circuit, the first power supply and the second source of powering to this second sub-gate circuit, this second sub-gate circuit comprises switching mechanism, the second separating brake supervisory relay, there is diagnostic circuit in the second co-bit supervisory relay and the second broken string, this closing circuit also comprises the second broken string generation diagnostic circuit, this the second co-bit supervisory relay has multipair normally closed auxiliary contact, the second separating brake supervisory relay has multipair normally closed auxiliary contact and the multipair auxiliary contact of often opening,
There is diagnostic circuit and combined floodgate supervisory relay and be connected in series in the two ends of this switching mechanism in second in this closing circuit broken string, and is connected in series in the two ends of this first power supply with this jumping position supervisory relay; There is diagnostic circuit and the second separating brake supervisory relay and be connected in series in the two ends of this switching mechanism in second in this second sub-gate circuit broken string, and is connected in series in the two ends of this second source with this second co-bit supervisory relay;
This closing circuit and the second sub-gate circuit all also comprise respectively one second adaptive resistance circuit, this second adaptive resistance circuit comprises that diagnostic circuit and at least one adaptive resistance occur the second broken string being connected in series, be connected in parallel this jumping position supervisory relay be connected in series in the two ends of this first power supply with this combined floodgate supervisory relay of the second adaptive resistance circuit in this closing circuit, be connected in parallel this second co-bit supervisory relay be connected in series in the two ends of this second source with this second separating brake supervisory relay of the second adaptive resistance circuit in this second sub-gate circuit;
Wherein: diagnostic circuit occurs this second broken string has and the identical circuit structure of the first broken string generation diagnostic circuit, the normally closed auxiliary contact of its second co-bit supervisory relay to should first broken string there is the normally closed auxiliary contact of the first co-bit supervisory relay of diagnostic circuit;
Also comprise for generation of with the signal circuit of signal that shows corresponding switch control circuit broken string region, this signal circuit comprises signal circuit one and signal circuit two, this signal circuit two has the circuit structure identical with signal circuit one, wherein: the auxiliary contact of the second separating brake supervisory relay in this signal circuit two and the auxiliary contact of the second co-bit supervisory relay are respectively to the auxiliary contact of the first separating brake supervisory relay and the auxiliary contact of the first co-bit supervisory relay in should signal circuit one.
The technical program is compared with background technology, and its tool has the following advantages:
By combined floodgate supervisory relay and separating brake supervisory relay are installed in the closing circuit in switch control circuit and sub-gate circuit, the auxiliary contact that utilize they and co-bit supervisory relay and jump position supervisory relay are as signal transfer medium, realize the automatic Identification of switch control circuit switch region broken string and protection zone broken string, according to the identification result in this broken string region (switch region broken string or protection zone broken string), in conducting transmission line broken string repairing process, only need the repair personnel who sets out corresponding broken string region to rush to repair, without set out simultaneously, break in switch region and protection zone two kinds of professional repair personnel of broken string investigate confirmation broken string generation area to scene, reduce expending of labour, also improved repairing efficiency, thereby reduce load loss.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 has illustrated the closing circuit schematic diagram of the A phase switch control circuit of the present embodiment one.
Fig. 2 has illustrated the first sub-gate circuit schematic diagram of the A phase switch control circuit of the present embodiment one.
Fig. 3 has illustrated the second sub-gate circuit schematic diagram of the A phase switch control circuit of the present embodiment one.
Fig. 4 has illustrated signal circuit one schematic diagram of the present embodiment one.
Fig. 5 has illustrated signal circuit two schematic diagram of the present embodiment one.
Fig. 6 has illustrated the closing circuit of the switch control circuit in the present embodiment two, the overall connection diagram of sub-gate circuit.
Fig. 7 has illustrated signal circuit one schematic diagram in the present embodiment two.
Embodiment
Embodiment mono-, please refers to Fig. 1 to Fig. 5:
For the switch control circuit of 220kV and above, each of three-phase line A, B, C phase distinguish mutually a corresponding switch control circuit and for generation of with the signal circuit of signal that shows this switch control circuit broken string region.The switch control circuit of this each phase comprises closing circuit, the first sub-gate circuit, the second sub-gate circuit, the first power supply 100 and the second source 200 to this second sub-gate circuit power supply; This closing circuit and the first sub-gate circuit form first group of switch control circuit, and this closing circuit and the second sub-gate circuit form second group of switch control circuit.
This switch control circuit broken string region comprises switch region and protection zone, and this switch region comprises this switching mechanism, and this protection zone comprises except the switch control circuit part this switching mechanism.
Broken string domain identification circuit and the discrimination method of first group of switch control circuit:
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, jump position supervisory relay 11, there is diagnostic circuit 110 and for judging the combined floodgate supervisory relay 13 of this broken string generation area in the first broken string, this first sub-gate circuit comprises switching mechanism 10, the first co-bit supervisory relay 21, there is diagnostic circuit 110 and for judging the first separating brake supervisory relay 22 of this broken string generation area in the first broken string, this the first co-bit supervisory relay 21 and a jumping position supervisory relay 11 all have respectively some to normally closed auxiliary contact, this combined floodgate supervisory relay 13 and the first separating brake supervisory relay 22 all have respectively multipair normally closed auxiliary contact and the multipair auxiliary contact of often opening.
There is the normally closed auxiliary contact that diagnostic circuit 110 comprises the normally closed auxiliary contact of the first co-bit supervisory relay 21 being connected in series and jumps position supervisory relay 11 in this first broken string.
There is diagnostic circuit 110 and combined floodgate supervisory relay 13 and be connected in series in the two ends of this switching mechanism 10 in first in this closing circuit broken string, and is connected in series in the two ends of this first power supply 100 with this jumping position supervisory relay 11 again.
There is diagnostic circuit 110 and the first separating brake supervisory relay 22 and be connected in series in the two ends of this switching mechanism 10 in first in this sub-gate circuit broken string, and is connected in series in the two ends of this first power supply 100 with this first co-bit supervisory relay 21 again.
This signal circuit comprise for generation of with the signal circuit one of signal that shows this first group of switch control circuit broken string region situation, this signal circuit one comprises the first broken string generation diagnostic circuit 110 and broken string regional signal circuit, there is diagnostic circuit 110 and be connected in series this broken string regional signal circuit in this first broken string, this broken string regional signal circuit comprises the switch region disconnection signal circuit 410 and the protection zone disconnection signal circuit 420 that are connected in parallel, this switch region disconnection signal circuit 410 comprises that the first couple that the first couple of the combined floodgate supervisory relay 13 being connected in series often drives auxiliary contact and the first separating brake supervisory relay 22 often drives auxiliary contact, this protection zone disconnection 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 and 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, in the present embodiment, this signal circuit one also comprises power supply monitoring signal circuit 430, it comprises the second pair of normally closed auxiliary contact of the combined floodgate supervisory relay 13 that is connected in series and second pair of normally closed auxiliary contact of the first separating brake supervisory relay 22, there is diagnostic circuit 110 with this first broken string and be connected in series in this power supply monitoring signal circuit 430, and is connected in parallel with this broken string regional signal circuit.
This closing circuit and the first sub-gate circuit all also comprise respectively one first adaptive resistance circuit 120, this first adaptive resistance circuit 120 comprises that diagnostic circuit 110 and at least one adaptive resistance 12 occur the first broken string being connected in series, be connected in parallel this jumping position supervisory relay 11 be connected in series in the two ends 100 of this first power supply with this combined floodgate supervisory relay 13 of the first adaptive resistance circuit 120 in this closing circuit, be connected in parallel this first co-bit supervisory relay 21 be connected in series in the two ends of this first power supply 100 with this first separating brake supervisory relay 22 of the first adaptive resistance circuit 120 in this sub-gate circuit.
In the present embodiment, this switch region disconnection signal circuit 410, protection zone disconnection signal circuit 420, power supply monitoring signal circuit 430 are connected in series respectively the optocoupler 41 for transmission of signal.In one preferred embodiments, each corresponding power supply monitoring signal circuit 430 of this three-phase line can connect same optocoupler simultaneously, and all sends power supply monitoring signal (power supply power on signal or power off signal) by this optocoupler.
There is diagnostic circuit 110 and judge that whether the broken string of this control loop occurs in this first broken string, and determine whether to allow the break region diagnosis of this combined floodgate supervisory relay 13 and the first separating brake supervisory relay 22, this combined floodgate supervisory relay 13 and the first separating brake supervisory relay 22 often drive auxiliary contact by it and normally closed auxiliary contact contacts this signal circuit one, this signal circuit one by this switch region disconnection signal circuit 410 and protection zone disconnection signal circuit 420 whether conducting judge the broken string region of this switch control circuit, and this identification result is sent to remote monitoring main website by monitor terminal.
Below be divided into the logical action principle that three kinds of situations illustrate this first group of switch control circuit broken string 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 control loop switch region broken string,
(1) the jumping position supervisory relay 11 in closing circuit, the equal decompression of the first co-bit supervisory relay 21 in sub-gate circuit is failure to actuate, its normally closed auxiliary contact is all in closure state, and diagnostic circuit conducting occurs the first broken string, and diagnoses out this first group of switch control circuit to break.
(2) when switch region broken string, between closing circuit switching mechanism 10 two ends, between (being between 7A and n29 in figure), 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, there is potential difference (PD), now jumping position supervisory relay 11 and the first co-bit supervisory relay 21 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 by jump a supervisory relay 11 and the first adaptive resistance circuit 120 in parallel again with combined floodgate supervisory relay 13 dividing potential drops after be added in combined floodgate supervisory relay 13 voltage determine, the voltage that is added in the first separating brake supervisory relay 22 after again with the first separating brake supervisory relay 22 dividing potential drops in parallel of the potential difference (PD) between sub-gate circuit 137A and n29 by the first co-bit supervisory relay 21 and the first adaptive resistance circuit 120 is definite.
(3) because combined floodgate supervisory relay 13, the first separating brake supervisory relay of control loop all move, it often opens auxiliary contact closure, its normally closed auxiliary contact disconnects, this switch region disconnection signal circuit turn-on, therefore signal circuit one is reported " the switch region broken string of first group of switch control circuit " signal.
2,, in the time that switch moves, there is control loop protection zone broken string,
(1) the jumping position supervisory relay 11 in closing circuit, the equal decompression of the first co-bit supervisory relay 21 in the first sub-gate circuit is failure to actuate, its normally closed auxiliary contact is all in closure state, there is diagnostic circuit conducting in the first broken string, and diagnose out this first group of switch control circuit to break.
(2) when protection zone broken string, 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, and combined floodgate supervisory relay moves; Because switching mechanism non-fault is in waiting for tripped condition; loop resistance between 137A and n29 is equivalent to the first separating brake supervisory relay 22 short circuits can not move much smaller than the first separating brake supervisory relay; simultaneously due to protection zone broken string; jump position supervisory relay 11 and the first co-bit supervisory relay 21 and be failure to actuate, therefore the first broken string there is diagnostic circuit can be because of not conducting and cannot feasible region discriminating function.
(3) because combined floodgate supervisory relay 13 moves, the first separating brake supervisory relay 22 is failure to actuate; it often opens auxiliary contact closure; normally closed auxiliary contact disconnects; this protection zone disconnection signal circuit turn-on, therefore at first signal loop report " the protection zone broken string of first group of switch control circuit " signal.
3,, when switching mechanism is when stand-by heat (switch divides position, by power transmission), there is control loop protection zone broken string,
(1) the jumping position supervisory relay 11 in closing circuit, the equal decompression of the first co-bit supervisory relay 21 in the first sub-gate circuit is failure to actuate, its normally closed auxiliary contact is all in closure state, there is diagnostic circuit conducting in the first broken string, and diagnose out this first group of switch control circuit to break.
(2) when protection zone broken string, 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 22 moves; Because switching mechanism is without breaking in waiting for "on" position; loop resistance between 7A and n29 is equivalent to combined floodgate supervisory relay 13 short circuits can not move much smaller than combined floodgate supervisory relay 13; simultaneously due to protection zone broken string; the first co-bit supervisory relay 11 and jump a position supervisory relay 21 and be failure to actuate, therefore the first broken string there is diagnostic circuit can be because of not conducting and cannot feasible region discriminating function.
(3) because 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 disconnection signal circuit turn-on, therefore produces " the protection zone broken string of first group of switch control circuit " signal in first signal loop.
More than set forth broken string domain identification circuit and the method for first group of switch control circuit in the present embodiment, the broken string domain identification circuit of second group of switch control circuit in the present embodiment and method are similar to first group of switch control circuit.
Wherein, the second sub-gate circuit of this second group of switch control circuit is connected to this second source 200 two ends, this second sub-gate circuit comprises that diagnostic circuit 130 occurs for switching mechanism 10, the second co-bit supervisory relay 31, the second separating brake supervisory relay 32, the second broken string, this the second separating brake supervisory relay 32 has some to often opening auxiliary contact and normally closed auxiliary contact, and this second co-bit supervisory relay 31 has multipair normally closed auxiliary contact.Diagnostic circuit 130 occurs this second broken string has and the identical circuit structure of the first broken string generation diagnostic circuit 110, and the normally closed auxiliary contact that the second co-bit supervisory relay 31 in diagnostic circuit occurs this second broken string is to the normally closed auxiliary contact of the first co-bit supervisory relay 21 of diagnostic circuit 110 should the first broken string occurs.This closing circuit comprises that diagnostic circuit 130 occurs this second broken string, and this second broken string diagnostic circuit 130 and combined floodgate supervisory relay 13 occur is connected in series in the two ends of this switching mechanism 10, and be connected in series in the two ends of this first power supply 100 with this jumping position supervisory relay 11.This second sub-gate circuit has the circuit structure identical with the first sub-gate circuit, there is diagnostic circuit 130 diagnostic circuit 110 occurred the first separating brake supervisory relay 22 and first in should the first sub-gate circuit in the second separating brake supervisory relay 32 in this second sub-gate circuit and second, there is diagnostic circuit 130 and the second separating brake supervisory relay 32 and be connected in series in the two ends of this switching mechanism 10 in second in this second sub-gate circuit broken string, and is connected in series in the two ends of this second source 200 with this second co-bit supervisory relay 31.
This closing circuit and the second sub-gate circuit all also comprise respectively one second adaptive resistance circuit 140, this second adaptive resistance electricity, 140 comprise that diagnostic circuit 130 and at least one adaptive resistance 12 occur the second broken string being connected in series, be connected in parallel this jumping position supervisory relay 11 be connected in series in the two ends of this first power supply 100 with this combined floodgate supervisory relay 13 of the second adaptive resistance circuit 140 in this closing circuit, be connected in parallel this second co-bit supervisory relay 31 be connected in series in the two ends of this second source 200 with this second separating brake supervisory relay 32 of the second adaptive resistance circuit 140 in this sub-gate circuit.
The broken string domain identification circuit of this second group of switch control circuit comprise for generation of with the signal circuit two of signal that shows this second group of switch control circuit broken string region situation, this signal circuit two has the circuit structure identical with signal circuit one, wherein: the auxiliary contact of the second separating brake supervisory relay 32 in this signal circuit two and the auxiliary contact of the second co-bit supervisory relay 31 are respectively to the auxiliary contact of the first separating brake supervisory relay 22 and the auxiliary contact of the first co-bit supervisory relay 21 in should signal circuit one.
In the present embodiment, in order to make control loop when broken string, jump position supervisory relay 11 and first, the parallel connection of the second adaptive resistance circuit 120 (140) can with combined floodgate supervisory relay 13, this the first co-bit supervisory relay 21 can form respectively effective loop voltage-distributing to guarantee this combined floodgate supervisory relay 13 and first with the second separating brake supervisory relay 32 with the in parallel of the second adaptive resistance circuit 140 with the first separating brake supervisory relay 22 and the second co-bit supervisory relay 31 separately with the in parallel of the first adaptive resistance circuit 120, the second separating brake supervisory relay 22 (32) can move by default broken string domain identification logic, the resistance summation of this adaptation resistance 12 should be chosen in 40k Ω left and right.Generally, combined floodgate supervisory relay 13 and first, the resistance value of the second separating brake supervisory relay 22 (32) is less than 30k Ω, and some first, the resistance value of the second co-bit supervisory relay 21 (31) or jumping position supervisory relay 11 can reach 40k Ω, therefore at this jumping position supervisory relay 11 and first, the second co-bit supervisory relay 21 (31) is guaranteed this combined floodgate supervisory relay 13 and first by the first adaptive resistance circuit 120 in parallel and the second adaptive resistance circuit 140 respectively, the loop voltage-distributing of the second separating brake supervisory relay 22 (32) is greater than this jumping position supervisory relay 11 and first, the second co-bit supervisory relay 21 (31) respectively with the first adaptive resistance circuit 120, the dividing potential drop in parallel of the second adaptive resistance circuit 140, make this combined floodgate supervisory relay 13 and first, effectively action message of the second separating brake supervisory relay 22 (32), and this combined floodgate supervisory relay 13 and first, the resistance of the second separating brake supervisory relay 22 (32) can be chosen in 20k Ω and all can above.
Embodiment bis-, please refers to Fig. 6 and Fig. 7:
For 110kV and following switch control circuit, mutually corresponding same switch control circuit all of each in its three-phase line, this switch control circuit 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 switch control circuit only includes closing circuit and the first sub-gate circuit, and its broken string domain identification system and method is similar with first group of switch control circuit or second group of switch control circuit in embodiment mono-.
By this high-voltage switch gear control loop broken string domain identification circuit; our maintainer can check the broken string generation area signal (switch region disconnection signal or protection zone disconnection signal) of being reported and submitted by the optocoupler on this circuit by remote monitoring main website; and the maintainer who assigns corresponding specialty removes site disposal broken string; like this; go to together the scene location work of breaking without two groups of professionals; reduce labour; also shorten the broken string processing time, reduced the risk of expansion accident.
The above, it is only the utility model preferred embodiment, therefore can not limit according to this scope that the utility model is implemented, the equivalence of doing according to the utility model the scope of the claims and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (5)
1.110kV and following switch control circuit broken string domain identification circuit, it is characterized in that: comprising: A, B, C mutually a common corresponding switch control circuit and for generation of with the signal circuit of signal that shows this switch control circuit broken string region, this signal circuit comprises signal circuit one;
This switch control circuit comprises closing circuit, the first sub-gate circuit and give the first power supply of this closing circuit and the first sub-gate circuit power supply, this closing circuit comprises switching mechanism, jump position supervisory relay, there is diagnostic circuit and for judging the combined floodgate supervisory relay of this broken string generation area in the first broken string, this first sub-gate circuit comprises switching mechanism, the first co-bit supervisory relay, there is diagnostic circuit and for judging the first separating brake supervisory relay of this broken string generation area in the first broken string, this the first co-bit supervisory relay and a jumping position supervisory relay all have respectively multipair normally closed auxiliary contact, this combined floodgate supervisory relay and the first separating brake supervisory relay all have respectively multipair normally closed auxiliary contact and the multipair auxiliary contact of often opening, this broken string region comprises switch region and protection zone, this switch region comprises this switching mechanism, this protection zone comprises except the switch control circuit part this switching mechanism,
There is diagnostic circuit and combined floodgate supervisory relay and be connected in series in the two ends of this switching mechanism in first in this closing circuit broken string, and is connected in series in the two ends of this first power supply with this jumping position supervisory relay again;
There is diagnostic circuit and the first separating brake supervisory relay and be connected in series in the two ends of this switching mechanism in first in this first sub-gate circuit broken string, and is connected in series in the two ends of this first power supply with this first co-bit supervisory relay again;
This closing circuit and the first sub-gate circuit all also comprise respectively one first adaptive resistance circuit, this first adaptive resistance circuit comprises that diagnostic circuit and at least one adaptive resistance occur the first broken string being connected in series, be connected in parallel this jumping position supervisory relay be connected in series in the two ends of this first power supply with this combined floodgate supervisory relay of the first adaptive resistance circuit in this closing circuit, be connected in parallel this first co-bit supervisory relay be connected in series in the two ends of this first power supply with this first separating brake supervisory relay of the first adaptive resistance circuit in this sub-gate circuit;
This signal circuit one comprises the first broken string generation diagnostic circuit and broken string regional signal circuit, there is diagnostic circuit and be connected in series this broken string regional signal circuit in this first broken string, this broken string regional signal circuit comprises the switch region disconnection signal circuit and the protection zone disconnection signal circuit that are connected in parallel, this switch region disconnection 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 and the first separating brake supervisory relay often drives auxiliary contact, this protection zone disconnection signal circuit comprises first pair of normally closed auxiliary contact of the first separating brake supervisory relay being connected in series, the second couple of combined floodgate supervisory relay often drives auxiliary contact and the second couple of the first separating brake supervisory relay of being connected in series often drives auxiliary contact, first pair of normally closed auxiliary contact of combined floodgate supervisory relay,
There is the normally closed auxiliary contact that diagnostic circuit comprises the normally closed auxiliary contact of the first co-bit supervisory relay being connected in series and jumps position supervisory relay in this first broken string;
There is diagnostic circuit and judge that whether the broken string of this control loop occurs in this first broken string; and determine whether to allow the break region diagnosis of this combined floodgate supervisory relay and the first separating brake supervisory relay; this combined floodgate supervisory relay and the first separating brake supervisory relay contact this signal circuit one by its auxiliary contact, by this switch region disconnection signal circuit and protection zone disconnection signal circuit whether conducting judge the broken string region of this switch control circuit.
2. 110kV according to claim 1 and following switch control circuit broken string domain identification circuit, it is characterized in that: this signal circuit one also comprises power supply monitoring signal circuit, it comprises the second pair of normally closed auxiliary contact of the combined floodgate supervisory relay that is connected in series and second pair of normally closed auxiliary contact of the first separating brake supervisory relay, there is diagnostic circuit and be connected in series in this power supply monitoring signal circuit and this first broken string, and is connected in parallel with this broken string regional signal circuit.
3. 110kV according to claim 1 and following switch control circuit broken string domain identification circuit; it is characterized in that: also comprise the optocoupler for transmitting broken string regional signal, this switch region disconnection signal circuit and protection zone disconnection signal circuit are connected in series respectively an optocoupler.
4. 110kV according to claim 2 and following switch control circuit broken string domain identification circuit; it is characterized in that: also comprise the optocoupler for transmission of signal, this switch region disconnection signal circuit, protection zone disconnection signal circuit, power supply monitoring signal circuit are connected in series respectively an optocoupler.
5.220kV and above switch control circuit broken string domain identification circuit, 110kV based on described in any one in claim 1 or 4 and following switch control circuit broken string domain identification circuit, it is characterized in that: comprise A, B, C distinguishes three corresponding switch control circuits mutually, this switch control circuit comprises closing circuit, the first sub-gate circuit, the second sub-gate circuit, the first power supply and the second source of powering to this second sub-gate circuit, this second sub-gate circuit comprises switching mechanism, the second separating brake supervisory relay, there is diagnostic circuit in the second co-bit supervisory relay and the second broken string, this closing circuit also comprises the second broken string generation diagnostic circuit, this the second co-bit supervisory relay has multipair normally closed auxiliary contact, the second separating brake supervisory relay has multipair normally closed auxiliary contact and the multipair auxiliary contact of often opening,
There is diagnostic circuit and combined floodgate supervisory relay and be connected in series in the two ends of this switching mechanism in second in this closing circuit broken string, and is connected in series in the two ends of this first power supply with this jumping position supervisory relay; There is diagnostic circuit and the second separating brake supervisory relay and be connected in series in the two ends of this switching mechanism in second in this second sub-gate circuit broken string, and is connected in series in the two ends of this second source with this second co-bit supervisory relay;
This closing circuit and the second sub-gate circuit all also comprise respectively one second adaptive resistance circuit, this second adaptive resistance circuit comprises that diagnostic circuit and at least one adaptive resistance occur the second broken string being connected in series, be connected in parallel this jumping position supervisory relay be connected in series in the two ends of this first power supply with this combined floodgate supervisory relay of the second adaptive resistance circuit in this closing circuit, be connected in parallel this second co-bit supervisory relay be connected in series in the two ends of this second source with this second separating brake supervisory relay of the second adaptive resistance circuit in this second sub-gate circuit;
Wherein: diagnostic circuit occurs this second broken string has and the identical circuit structure of the first broken string generation diagnostic circuit, the normally closed auxiliary contact of its second co-bit supervisory relay to should first broken string there is the normally closed auxiliary contact of the first co-bit supervisory relay of diagnostic circuit;
Also comprise for generation of with the signal circuit of signal that shows corresponding switch control circuit broken string region, this signal circuit comprises signal circuit one and signal circuit two, this signal circuit two has the circuit structure identical with signal circuit one, wherein: the auxiliary contact of the second separating brake supervisory relay in this signal circuit two and the auxiliary contact of the second co-bit supervisory relay are respectively to the auxiliary contact of the first separating brake supervisory relay and the auxiliary contact of the first co-bit supervisory relay in should signal circuit one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170482.0U CN203825144U (en) | 2014-04-09 | 2014-04-09 | Circuit for identifying broken line area of switch control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170482.0U CN203825144U (en) | 2014-04-09 | 2014-04-09 | Circuit for identifying broken line area of switch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825144U true CN203825144U (en) | 2014-09-10 |
Family
ID=51480626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420170482.0U Expired - Fee Related CN203825144U (en) | 2014-04-09 | 2014-04-09 | Circuit for identifying broken line area of switch control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203825144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635112A (en) * | 2015-01-30 | 2015-05-20 | 山东钢铁股份有限公司 | Method and device for finding fault point of circuit breaker closing 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 |
-
2014
- 2014-04-09 CN CN201420170482.0U patent/CN203825144U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635112A (en) * | 2015-01-30 | 2015-05-20 | 山东钢铁股份有限公司 | Method and device for finding fault point of circuit breaker closing 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101944771B (en) | Secondary loop panoramic state monitoring system for electric operating mechanism of circuit breaker | |
| CN103022994B (en) | Method for achieving fault isolation and recovery of power distribution network with permeability distribution type power supply | |
| CN102299563A (en) | Digital-analog (DA) protection method for intelligent distribution network | |
| CN103837826A (en) | System and method for identification of faulty region of high-voltage switch operating circuit | |
| CN103941155A (en) | High-voltage switch control loop break area identification circuit and identification method | |
| CN203825144U (en) | Circuit for identifying broken line area of switch control circuit | |
| CN102005819A (en) | Fault isolation method of electric distribution network | |
| CN204651944U (en) | Based on the generator connecting in parallel with system state automatic discriminating gear of half as much again wiring | |
| CN203929925U (en) | A kind of protective relaying device divide-shut brake return circuit testing device | |
| CN203813514U (en) | Control loop for high-voltage circuit breaker | |
| CN105261530B (en) | A kind of more strokes of breaker realize circuit and control method | |
| CN105790430A (en) | Quick-switching combined electrical appliance | |
| CN105207346A (en) | Area backup automatic switch method and system | |
| CN102437551A (en) | Over-current protection device for transformer and electric locomotive | |
| CN104924922A (en) | Bilateral combination jump protection system of direct-current traction power supply system based on digital communications | |
| CN103532111A (en) | Incoming line and outgoing line protector of switching station | |
| CN203745594U (en) | High-voltage switch operation loop fault area identification circuit | |
| CN103728529B (en) | A kind of switch gap condition discrimination method | |
| CN204559226U (en) | Multiterminal supply line standby self-closing self-healing device | |
| CN109861179B (en) | Bus protection voltage switching method suitable for hand-in-hand power supply mode | |
| CN106340851A (en) | Reclosing loop suitable for T connected small hydropower line | |
| CN206099510U (en) | Control system is hauled oneself willingly into fully to three inlet wires of low pressure, three female antithetical couplets based on PLC realizes | |
| CN110120269A (en) | One kind effectively eliminating the extended shutdown design method of nuclear power plant's reactor rod drop time | |
| CN104362578B (en) | Can reclosing RCCB | |
| CN111211542A (en) | Fusion type power transmission line fault isolation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20210409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |