CN205920338U - Double -bus control circuit's interlocking control circuit - Google Patents
Double -bus control circuit's interlocking control circuit Download PDFInfo
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- CN205920338U CN205920338U CN201620730754.7U CN201620730754U CN205920338U CN 205920338 U CN205920338 U CN 205920338U CN 201620730754 U CN201620730754 U CN 201620730754U CN 205920338 U CN205920338 U CN 205920338U
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Abstract
The utility model relates to a double -bus control circuit, include: the close a floodgate little generating line GBM of little generating line HM, isolator shutting, first interlocking control circuit, second interlocking control circuit and third interlocking control circuit, wherein, three interlocking control circuit is arranged in controlling the double -bus control circuit time sequential routine of the time sequential routine of isolator and circuit breaker in the return circuit, female time sequential routine that allies oneself with return circuit and the return circuit of being qualified for the next round of competitions and female isolator who allies oneself with in the return circuit and circuit breaker of being qualified for the next round of competitions respectively, and all includes the electromagnetic lock among the three interlocking control circuit, sets up lockpin and handle on the electromagnetic lock, and the lockpin prevents isolator pivot rotation in inserting the hole of axis base of corresponding isolator's operation pivot, lockpin and handle linkage, the people can remove the restriction of lockpin to operating the pivot for pulling the handle, thereby and then makes the switch -on of corresponding interlock circuit control the sequential operation to isolator among the double -bus control circuit and circuit breaker.
Description
Technical field
This utility model is related to a kind of control circuit and in particular to a kind of interlock control circuit of double-bus control circuit.
Background technology
In being configured with the electric loop that disconnecting switch is with chopper, disconnecting switch is mainly used for disconnecting zero load electric current
Circuit and insulating power supply, to ensure the safety of other electrical equipments；Chopper is used for operating on-load electric current and can also operating
Fault current.And disconnecting switch just can only be operated in the case that chopper disconnects, serious equipment otherwise can be caused
Or personal injury, for this reason, chopper and the operation of disconnecting switch should arrange blocking device, that is, by blocking device in electric loop
The time sequential routine of the chopper in electric loop and disconnecting switch is controlled.But traditional blocking device all adopt electronic
The mode of locking is controlling the time sequential routine of chopper in electric loop and disconnecting switch, the connection in blocking device under which
Lock circuit is complicated and amount of parts is many, be susceptible to fault lead to interlock unreliable.
Because each branch road has been further added by two groups of disconnecting switch compared with single busbar control circuit in existing double-bus control circuit, because
This controls the interlock circuit of double-bus control circuit to become complex, and when double-bus control circuit carries out grid switching operation
When, the chopper in chopper and disconnecting switch, and transmission line circuit in mother loop and the action of disconnecting switch have successively
Matching relationship so that interlock control circuit is increasingly complex, therefore, if adopting traditional closedown mode, the event of interlock control circuit
Barrier incidence rate higher it is ensured that disconnecting switch increasingly difficult with the time sequential routine property of chopper in some instances it may even be possible to cause on-load to divide
Close the maloperation of disconnecting switch.
Utility model content
For solving the above problems, this utility model provides a kind of interlock control circuit of double-bus control circuit, comprising:
Close a floodgate little bus hm, isolating-switch locking little bus gbm, the first interlock control circuit, the second interlock control circuit and the 3rd
Lock control circuit, wherein,
Described first interlock control circuit one end is connected with the little bus positive supply+hm of described combined floodgate, the other end and described conjunction
Lock little bus negative supply-hm connects, for controlling disconnecting switch and the open circuit in transmission line circuit in described double-bus control circuit
The sequential of the operation of device；
Described second interlock control circuit one end is connected with described isolating-switch locking little bus gbm, the other end with described
The little bus negative supply-hm that closes a floodgate connects, for controlling the operation of mother loop and transmission line circuit in described double-bus control circuit
Sequential；
Described 3rd interlock control circuit one end is connected with the little bus positive supply+hm of described combined floodgate, the other end and described conjunction
Lock little bus negative supply-hm connects, for controlling disconnecting switch and the open circuit in mother loop in described double-bus control circuit
The sequential of the operation of device；
Electromagnetism is all included in described first interlock control circuit, the second interlock control circuit and the 3rd interlock control circuit
Lock；
Described electromagnetic lock is provided with lock pin and the handle being connected with described lock pin, and described lock pin is inserted into correspondence position
The axle bed hole of the rotating shaft of disconnecting switch in, for controlling the rotation of described rotating shaft；
Described handle is manual handle, for controlling described lock pin to insert the axle bed of the rotating shaft of the disconnecting switch of correspondence position
Kong Zhong, or, control described lock pin to extract from described axle bed hole.
Alternatively, described first interlock control circuit includes: first fuse, the first electromagnetic lock, second fuse and
Two electromagnetic locks, wherein,
Described first fuse first end with close a floodgate little bus positive supply+hm is connected, described first fuse second end and
Described first electromagnetic lock first end connect, described first electromagnetic lock the second end with described transmission line circuit the second disconnecting switch normal
Close auxiliary contact to connect, the normally closed auxiliary contact of described second disconnecting switch also with described transmission line circuit the first chopper normal
Close auxiliary contact to connect, the normally closed auxiliary contact of described first chopper is connected with described second fuse first end, described the
Two fuse the second ends are connected with the little bus negative supply-hm of described combined floodgate, the first end of described second electromagnetic lock and described first
The common port of fuse and described first electromagnetic lock connects, first in the second end of described second electromagnetic lock and described transmission line circuit
The normally closed auxiliary contact of disconnecting switch connects, the normally closed auxiliary contact of described first disconnecting switch also with described transmission line circuit in the
In the normally closed auxiliary contact of two disconnecting switch and described transmission line circuit, the common port of the first chopper normally closed auxiliary contact connects.
Alternatively, described second interlock control circuit includes the 4th fuse, wherein,
The first end of described 4th fuse is connected with the little bus negative supply-hm of described combined floodgate, described 4th fuse
Second end is connected with the normally opened auxiliary contact of the second chopper in described mother loop, and the normally opened auxiliary of described second chopper is touched
Point is connected with the normally opened auxiliary contact of the 4th disconnecting switch in described mother loop, and the normally opened auxiliary of described 4th disconnecting switch is touched
Point is also connected with the normally opened auxiliary contact of the 3rd disconnecting switch in described mother loop, the normally opened auxiliary of described 3rd disconnecting switch
Contact is also connected with described isolating-switch locking little bus gbm, the little bus gbm of described isolating-switch locking also with described second every
Leave the normally opened auxiliary contact of pass and the common port of the normally opened auxiliary contact of described first disconnecting switch connects, described second isolation
The common port also with described first electromagnetic lock and the normally closed auxiliary contact of described second disconnecting switch for the normally opened auxiliary contact of switch
Connect, the normally opened auxiliary contact of described first disconnecting switch are also normally closed with described second electromagnetic lock and described first disconnecting switch
The common port of auxiliary contact connects.
Alternatively, described 3rd interlock control circuit includes the 3rd fuse, the 4th fuse, the 3rd electromagnetic lock and the 4th
Electromagnetic lock, wherein,
The first end of described 3rd fuse is connected with the little bus positive supply+hm of described combined floodgate, described 3rd fuse
Second end is connected with the first end of described 3rd electromagnetic lock, is broken with described mother loop second in the second end of described 3rd electromagnetic lock
The normally closed auxiliary contact of road device connects, and the normally closed auxiliary contact of described second chopper is also connected with described 4th fuse, institute
State the 4th fuse other end to be connected with the little bus negative supply-hm of described combined floodgate, the first end of described 4th electromagnetic lock with described
Common port connection, the second end of described 4th electromagnetic lock and described 3rd electromagnetic lock of the 3rd fuse and described 3rd electromagnetic lock
Connect with the common port of the normally closed auxiliary contact of described second chopper.
Beneficial effect:
A kind of interlock control circuit of double-bus control circuit, is provided with three interlock control circuit, for controlling double mothers
Disconnecting switch in line control circuit and the time sequential routine of chopper, in above three interlock control circuit, electromagnetic lock is all provided with
There are lock pin and handle, lock pin is inserted into the rotating shaft axle bed hole of the disconnecting switch in the double-bus control circuit of correspondence position
In, for controlling described axis of rotation, electromagnetic lock is connected by after electronic work, discharges the lock pin being controlled, artificially manually its
Handss are opened electromagnetic lock lock pin and just can be released the control to disconnecting switch rotating shaft for the lock pin, operable corresponding disconnecting switch, and then make
Obtain corresponding interlock circuit to connect, finally control the disconnecting switch of double-bus control circuit and the time sequential routine of chopper, work as operation
Handle is decontroled, lock pin automatically resets, and is maintained at latched position after finishing.
It can be seen that, the interlock control circuit of the double-bus control circuit that this utility model embodiment provides is it is only necessary to a small amount of
Electromagnetism locking element can to realize being switched on or switched off of interlock circuit, and then control disconnecting switch in double-bus control circuit and
The time sequential routine of chopper, and pure electric latching needs to design being turned on and off of special control circuit control interlock circuit,
Therefore, compared with pure electric latching mode, the mode of comprehensive electric latching and mechanical latching decreases and is exclusively used in controlling interlocking electricity
The control circuit that road is switched on or switched off, simplifies the structure of interlock control circuit.Being additionally, since interlock control circuit can only be in electricity
Magnetic padlock is connected by after electronic work, could open, by manipulating its handle, the control that lock pin is realized to disconnecting switch rotating shaft, that is, when
Chopper is in closure state, and when its normally-closed contact disconnects, if electromagnetic lock access failure, disconnecting switch cannot be carried out operating, thus
Prevent the maloperation of on-load division disconnecting switch, and then improve the reliability of interlocking.
Brief description
Fig. 1 is a kind of structural representation of double-bus electric operation control circuit figure.
A kind of structural representation of the interlock control circuit figure that Fig. 2 provides for this utility model.
A kind of structural representation of the interlock control circuit of the double-bus control circuit that Fig. 3 provides for this utility model embodiment
Figure.
Specific embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with the accompanying drawings and tool
The utility model is described in further detail for body embodiment.
Fig. 1 be double-bus control circuit a kind of partial structural diagram, including bus im, bus iim, transmission line circuit and
Mother loop.Wherein, transmission line circuit includes the first disconnecting switch 1ds, the second disconnecting switch 2ds and the first chopper 1cb, specifically
Ground, the first disconnecting switch 1ds first end is connected with bus im, and the second disconnecting switch 2ds first end is connected with bus iim, and first
Disconnecting switch 1ds second end is connected with second disconnecting switch 2ds the second end, the first chopper 1cb and the first disconnecting switch 1ds and
The common port of the second disconnecting switch 2ds connects；Mother loop includes the 3rd disconnecting switch 3ds, the 4th disconnecting switch 4ds and second
Chopper 2cb, specifically, the 3rd disconnecting switch 3ds first end is connected with bus im, the 3rd disconnecting switch 3ds the second end and the
The first end of two chopper 2cb connects, and second end of the second chopper 2cb is connected with the first end of the 4th disconnecting switch 4ds, the
Second end of four disconnecting switch 4ds is connected with bus iim.
Fig. 2 be double-bus control circuit interlock control circuit a kind of structural representation, include combined floodgate little bus hm, every
From circuit breaker lock little bus gbm, the first interlock control circuit, the second interlock control circuit and the 3rd interlock control circuit.
Wherein, first interlock control circuit one end with close a floodgate little bus positive supply+hm is connected, the other end with combined floodgate little bus
Negative supply-hm connects, for control disconnecting switch in transmission line circuit in double-bus control circuit and the operation of chopper when
Sequence, the disconnecting switch in transmission line circuit in double-bus control circuit is linked into this first interlocked control with the auxiliary contact of chopper
Circuit, thus the first interlock control circuit can be controlled to the time sequential routine of the disconnecting switch in transmission line circuit and chopper
System.
Second interlock control circuit one end is connected with isolating-switch locking little bus gbm, and the other end is born with the little bus that closes a floodgate
Power supply-hm connects, and for controlling the sequential of the operation of mother loop and transmission line circuit in double-bus control circuit, double-bus controls
The auxiliary contact of the disconnecting switch in transmission line circuit in circuit and the disconnecting switch in mother loop and chopper are linked into this
Second interlock control circuit, thus the second interlock control circuit to the disconnecting switch in transmission line circuit and mother loop and can be broken
The time sequential routine of road device is controlled.
3rd interlock control circuit one end with close a floodgate little bus positive supply+hm is connected, the other end with combined floodgate little bus negative electricity
Source-hm connects, for controlling the sequential of the disconnecting switch in mother loop in double-bus control circuit and the operation of chopper, double
Disconnecting switch in mother loop in bus control circuit is linked into the 3rd interlock control circuit with the auxiliary contact of chopper,
Thus the 3rd interlock control circuit can be controlled to the time sequential routine of the disconnecting switch in mother loop and chopper.
Electromagnetism is all included in above-mentioned first interlock control circuit, the second interlock control circuit and the 3rd interlock control circuit
Lock, and electromagnetic lock is provided with lock pin and the handle being connected with lock pin, lock pin is inserted into the correspondence position being previously set
In the axle bed hole of the rotating shaft of disconnecting switch (for example: set first electromagnetism lock control the first disconnecting switch, then the first electromagnetic lock is pacified
It is contained near the first disconnecting switch rotating shaft rear end axle bed, its lock pin is inserted in the axle bed hole of the first disconnecting switch rotating shaft),
Handss are manual handle, for controlling lock pin to insert in the axle bed hole of the rotating shaft of the disconnecting switch of correspondence position, or, control lock pin
Extract from described axle bed hole, to control the rotation of disconnecting switch rotating shaft.
A kind of structural representation of the interlock control circuit that Fig. 3 provides for this utility model embodiment, including the little mother that closes a floodgate
Line hm, isolating-switch locking little bus gbm, the first interlock control circuit, the second interlock control circuit and the 3rd interlocked control electricity
Road.Wherein,
First interlock control circuit may include that first fuse 1fu, the first electromagnetic lock 1yl, second fuse 2fu and
Second electromagnetic lock 2yl.Wherein, first fuse 1fu first end is connected with the little bus positive supply+hm that closes a floodgate, first fuse 1fu
Second end is connected with the first electromagnetic lock 1yl first end, the second disconnecting switch in first electromagnetic lock 1yl the second end and transmission line circuit
The normally closed auxiliary contact 2dsc of 2ds connects, and in the normally closed auxiliary contact 2dsc of the second disconnecting switch 2ds and transmission line circuit, first breaks
Normally closed auxiliary contact 1cbc connection, the normally closed auxiliary contact 1cbc of the first chopper 1cb and second fuse 2fu of road device 1cb
First end connects, and second fuse 2fu second end is connected with the little bus negative supply-hm that closes a floodgate, the first end of the second electromagnetic lock 2yl
It is connected with the common port of described first fuse 1fu and the first electromagnetic lock 1yl, second end of the second electromagnetic lock 2yl is returned with outlet
In road the first disconnecting switch 1ds normally closed auxiliary contact 1dsc connect, the normally closed auxiliary contact 1dsc of the first disconnecting switch 1ds with
The normally closed auxiliary contact 1cbc of the normally closed auxiliary contact 2dsc of the second disconnecting switch 2ds and the first chopper 1cb in transmission line circuit
Common port connect.
Second interlock control circuit may include that the 4th fuse 4fu.Wherein, the first end of the 4th fuse 4fu and conjunction
Lock little bus negative supply-hm connects, the normally opened auxiliary contact 2cbo of second end of the 4th fuse 4fu and the second chopper 2cb
Connect, in mother loop the normally opened auxiliary contact 2cbo of the second chopper 2cb with mother loop the 4th disconnecting switch 4ds normal
Open auxiliary contact 4dso to connect, the 3rd disconnecting switch in the normally opened auxiliary contact 4dso of the 4th disconnecting switch 4ds and mother loop
Normally opened auxiliary contact 3dso connection, the normally opened auxiliary contact 3dso of the 3rd disconnecting switch 3ds and the little mother of isolating-switch locking of 3ds
Line gbm connects, the normally opened auxiliary contact 2dso of isolating-switch locking little bus gbm and the second disconnecting switch 2ds and first isolation
The common port of the normally opened auxiliary contact 1dso of switch 1ds connects, the normally opened auxiliary contact 2dso and first of the second disconnecting switch 2ds
The common port of the normally closed auxiliary contact 2dsc of electromagnetic lock 1yl and the second disconnecting switch 2ds connects, the first disconnecting switch 1ds normal
The common port opening auxiliary contact 1dso with the second electromagnetic lock 2yl and the normally closed auxiliary contact 1dsc of the first disconnecting switch 1ds is connected.
3rd interlock control circuit may include that the 3rd fuse 3fu, the 4th fuse 4fu, the 3rd electromagnetic lock 3yl and
4th electromagnetic lock 4yl.Wherein, the first end of the 3rd fuse 3fu is connected with the little bus positive supply+hm that closes a floodgate, the 3rd fuse
Second end of 3fu is connected with the first end of the 3rd electromagnetic lock 3yl, and second end of the 3rd electromagnetic lock 3yl is with the second chopper 2cb's
Normally closed auxiliary contact 2cbc connects, and the normally closed auxiliary contact 2cbc of the second chopper 2cb is connected with the 4th fuse, the 4th fusing
The device other end is connected with the little bus negative supply-hm that closes a floodgate, the first end of the 4th electromagnetic lock 4yl and the 3rd fuse 3fu and the 3rd
The common port of electromagnetic lock 3yl connects, second end of the 4th electromagnetic lock 4yl and described 3rd electromagnetic lock 3yl and the second chopper
The common port of normally-closed contact 2cbc connects.
Specifically, in above-mentioned interlock control circuit, electromagnetic lock is by its internal electromagnetic lock coil with other elements even
Connect, conductive by connecting electromagnetic lock coil, interlock control circuit is just turned on.
Further, electromagnetic lock is additionally provided with lock pin and the manual handle being connected with lock pin, wherein,
First electromagnetic lock 1yl is arranged near the first disconnecting switch 1ds rotating shaft rear end axle bed, and its lock pin may be inserted into first
In the axle bed hole of the rotating shaft of disconnecting switch 1ds, then when the lock pin on the first electromagnetic lock inserts the rotating shaft of the first disconnecting switch 1ds
When in axle bed hole, the rotating shaft of the first disconnecting switch 1ds can not rotate, when the lock pin on the first electromagnetic lock is from the first disconnecting switch
When extracting in the axle bed hole of the rotating shaft of 1ds, the rotating shaft of the first disconnecting switch 1ds can rotate, and now can be closed with rotating shaft
Or disconnect the first disconnecting switch 1ds.
Second electromagnetic lock 2yl is arranged near the second disconnecting switch 2ds rotating shaft rear end axle bed, and its lock pin may be inserted into second
In the axle bed hole of the rotating shaft of disconnecting switch 2ds, then when the lock pin on the second electromagnetic lock inserts the rotating shaft of the second disconnecting switch 2ds
When in axle bed hole, the rotating shaft of the second disconnecting switch 2ds can not rotate, when the lock pin on the second electromagnetic lock is from the second disconnecting switch
When extracting in the axle bed hole of the rotating shaft of 2ds, the rotating shaft of the second disconnecting switch 2ds can rotate, and now can be closed with rotating shaft
Or disconnect the second disconnecting switch 2ds.
3rd electromagnetic lock 3yl is arranged near the 3rd disconnecting switch 3ds rotating shaft rear end axle bed, and its lock pin may be inserted into the 3rd
In the axle bed hole of the rotating shaft of disconnecting switch 3ds, then when the lock pin on the 3rd electromagnetic lock inserts the rotating shaft of the 3rd disconnecting switch 3ds
When in axle bed hole, the rotating shaft of the 3rd disconnecting switch 3ds can not rotate, when the lock pin on the 3rd electromagnetic lock is from the 3rd disconnecting switch
When extracting in the axle bed hole of the rotating shaft of 3ds, the rotating shaft of the 3rd disconnecting switch 3ds can rotate, and now can be closed with rotating shaft
Or disconnect the 3rd disconnecting switch 3ds.
4th electromagnetic lock 4yl is arranged near the 4th disconnecting switch 4ds rotating shaft rear end axle bed, and its lock pin may be inserted into the 4th
Keep apart in the axle bed hole of rotating shaft of 4ds pass, then when the rotating shaft of 4ds pass is kept apart in the lock pin insertion the 4th on the 4th electromagnetic lock
When in axle bed hole, the rotating shaft of the 4th disconnecting switch 4ds can not rotate, when the lock pin on the 4th electromagnetic lock is from the 4th disconnecting switch
When extracting in the axle bed hole of the rotating shaft of 4ds, the rotating shaft of the 4th disconnecting switch 4ds can rotate, and now can be closed with rotating shaft
Or disconnect the 4th disconnecting switch 4ds.
Double-bus control circuit shown in Fig. 1 has two kinds of working methods: the first is that two groups of buses independently work, the
Two kinds of modes are one group of bus work, and another group of bus is standby.In the present embodiment, main description second working method it is assumed that
Bus im is working bus bar, and bus iim is auxiliary bus-bar, then disconnecting switch 1ds in transmission line circuit during normal work and open circuit
Device 1cb closes, and disconnecting switch 2ds disconnects, and in mother loop, chopper 2cb, disconnecting switch 2ds and disconnecting switch 4ds all disconnect.
Double-bus control circuit back brake process, is that the transmission line circuit on working bus bar im is transferred to auxiliary bus-bar iim
On, the 3rd disconnecting switch 3ds in closure mother loop, the 4th disconnecting switch 4ds and second are disconnected successively first for this back brake process
Road device 2cb, then bus im charge to bus iim and make two groups of bus current potentials equal, secondly second in closure transmission line circuit every
Leave the first disconnecting switch 1ds closed 2ds, disconnect in transmission line circuit, that is, transmission line circuit has been transferred on auxiliary bus-bar iim,
Disconnect the second chopper 2cb in mother loop, the 4th disconnecting switch 4ds and the 3rd disconnecting switch 3ds afterwards more successively, then standby
Bus iim starts working, and working bus bar im deactivates.
When grid switching operation starts, in mother loop, the second chopper 2cb is to disconnect, i.e. the normally-closed contact of the second chopper
2cbc is in closure state, and the 3rd interlock control circuit as shown in Figure 3 is connected, then the 3rd electromagnetic lock 3yl and the 4th electromagnetic lock 4yl
Connect by after electronic work, discharge the lock pin being controlled, now artificially pull the manual handle on the 3rd electromagnetic lock 3yl and release the
The control to the 3rd disconnecting switch 3ds for the lock pin on three electromagnetic lock 3yl, then the rotating shaft of rotatable 3rd disconnecting switch 3ds is making
Obtain the 3rd disconnecting switch 3ds closure, decontrol the handle on the 3rd electromagnetic lock 3yl, lock pin automatically resets, and is maintained at locking bit
Put；Artificially pull the lock pin that manual handle on the 4th electromagnetic lock 4yl releases on the 4th electromagnetic lock 4yl again to the 4th disconnecting switch
The control of 4ds, then the rotating shaft of rotatable 4th disconnecting switch 4ds, to make its closure, decontrols the handle on the 4th electromagnetic lock 4yl
Handss, lock pin automatically resets, and is maintained at latched position；Then again the second chopper 2cb is closed, such 3rd interlocked control electricity
Road completes work, that is, control the time sequential routine of disconnecting switch in mother loop and chopper so that mother loop is by bus
Im and bus iim couples together, and it is equal that bus im reaches just to the bus iim last two groups of bus current potentials of charging.
After the 3rd disconnecting switch 3ds and the 4th disconnecting switch 4ds and the second chopper 2cb are closed, i.e. the 3rd isolation
The normally opened contact of the normally opened contact 3dso, the normally opened contact 4dso of the 4th disconnecting switch 4ds and the second chopper of switch 3ds
2cbo closes, and thus the second interlock control circuit part is connected, then isolating-switch locking little bus gbm and the little bus negative electricity that closes a floodgate
Source-hm current potential is equal, as shown in figure 1, because 1ds is now closure state, then its normally opened contact 1dso closure, the second interlocking
The another part of control circuit is connected, and the second electromagnetic lock 2yl connects by after electronic work, discharges the lock pin being controlled, now people
Release the control to the second disconnecting switch 2ds for the lock pin of the second electromagnetic lock for pulling the second electromagnetic lock manual handle, then rotatably
The rotating shaft of the second disconnecting switch 2ds come to make second disconnecting switch 2ds closure；After second disconnecting switch 2ds closure, it is normally opened tactile
Point 2dso closes, and the second interlock control circuit is connected, and the first electromagnetic lock 1yc connects by after electronic work, discharges the lock being controlled
Pin, now artificially pulls the control to the first disconnecting switch 1ds for the lock pin that the first electromagnetic lock manual handle releases the first electromagnetic lock,
Then the rotating shaft of rotatable first disconnecting switch 1ds come to make first disconnecting switch 1ds disconnect, thus control mother loop with
Time sequential routine of transmission line circuit it is ensured that grid switching operation procedural, the transmission line circuit on bus im has been transferred to bus iim
On, then disconnecting the second chopper 2cb, the 3rd disconnecting switch 3ds and the 4th disconnecting switch 4ds, back brake process terminates, auxiliary bus-bar
Iim works.
It can be seen from the above description that the first interlock control circuit controls disconnecting switch and transmission line circuit in transmission line circuit
The time sequential routine of middle chopper.Only when the first chopper 1cb first disconnects, its normally-closed contact 1cbc closes, if now the first isolation
Switch 1ds is off, and the second disconnecting switch 2ds is in closure state, then the first disconnecting switch being off
The normally closed auxiliary contact 1dsc closure of 1ds, then the second electromagnetic lock 2yl connect powered by after electronic work, discharge the lock being controlled
Pin, now artificially pulls the control to the second disconnecting switch 2ds for the lock pin that the second electromagnetic lock manual handle releases the second electromagnetic lock,
Then the rotating shaft of rotatable second disconnecting switch 2ds come to make second disconnecting switch 2ds disconnect；If conversely, the first disconnecting switch 1ds
It is in closure state, the second disconnecting switch 2ds is off, and analogizes with this, the rotating shaft of rotatable first disconnecting switch 1ds
First disconnecting switch 1ds is disconnected.If transmission line circuit disconnects, need to again be connected to and work on bus, now 1ds, 2ds and
1cb is in off-state, and its normally closed auxiliary contact 1dsc, 2dsc and 1cbc all close, and can release electromagnetic lock lock pin to isolation
The rotation of switch limits, and can be closed a floodgate according to command operating first disconnecting switch 1ds or the second disconnecting switch 2ds, then could grasp
Make the first chopper 1cb to close a floodgate, when above interlocking ensure that chopper and isolator operation, chopper must be prior to disconnecting switch
Disconnect, in the time sequential routine closed after chopper, prevent the maloperation of on-load division disconnecting switch.
It should be appreciated that this specific embodiment simply realizes a preferred mode of the present utility model, but therefore will not
This utility model is limited among described scope of embodiments, and the scheme slightly making simple modifications or conversion on this basis is all at this
In the protection domain of utility model.
Claims (4)
1. a kind of interlock control circuit of double-bus control circuit is it is characterised in that include: close a floodgate little bus hm, disconnecting switch
Locking little bus gbm, the first interlock control circuit, the second interlock control circuit and the 3rd interlock control circuit, wherein,
Described first interlock control circuit one end is connected with the little bus positive supply+hm of described combined floodgate, and the other end is little with described combined floodgate
Bus negative supply-hm connects, for controlling disconnecting switch and the chopper in transmission line circuit in described double-bus control circuit
Time sequential routine；
Described second interlock control circuit one end is connected with described isolating-switch locking little bus gbm, the other end and described combined floodgate
Little bus negative supply-hm connects, for controlling the time sequential routine of mother loop and transmission line circuit in described double-bus control circuit；
Described 3rd interlock control circuit one end is connected with the little bus positive supply+hm of described combined floodgate, and the other end is little with described combined floodgate
Bus negative supply-hm connects, for controlling disconnecting switch and the chopper in mother loop in described double-bus control circuit
Time sequential routine；
Electromagnetic lock is all included in described first interlock control circuit, the second interlock control circuit and the 3rd interlock control circuit；
Described electromagnetic lock is provided with lock pin and the handle being connected with described lock pin, described lock pin be inserted into correspondence position every
In the axle bed hole of the rotating shaft leaving pass, for controlling described axis of rotation；
Described handle is manual handle, for controlling described lock pin to insert the axle bed hole of the rotating shaft of the disconnecting switch of correspondence position
In, or, control described lock pin to extract from described axle bed hole.
2. interlock control circuit according to claim 1 is it is characterised in that described first interlock control circuit includes: the
One fuse, the first electromagnetic lock, second fuse and the second electromagnetic lock, wherein,
Described first fuse first end with close a floodgate little bus positive supply+hm be connected, described first fuse second end with described
First electromagnetic lock first end connect, described first electromagnetic lock the second end with described transmission line circuit the second disconnecting switch normally closed auxiliary
Help contact portion, the normally closed auxiliary contact of described second disconnecting switch also with described transmission line circuit the first chopper normally closed auxiliary
Help contact portion, the normally closed auxiliary contact of described first chopper is connected with described second fuse first end, described second melts
Disconnected device second end is connected with the little bus negative supply-hm of described combined floodgate, and the first end of described second electromagnetic lock fuses with described first
The common port of device and described first electromagnetic lock connects, the first isolation in the second end of described second electromagnetic lock and described transmission line circuit
The normally closed auxiliary contact of switch connects, the normally closed auxiliary contact of described first disconnecting switch also with described transmission line circuit in second every
Leave the normally closed auxiliary contact of pass and the common port of the normally closed auxiliary contact of the first chopper in described transmission line circuit connects.
3. interlock control circuit according to claim 2 is it is characterised in that described second interlock control circuit includes the 4th
Fuse, wherein,
The first end of described 4th fuse is connected with the little bus negative supply-hm of described combined floodgate, and the second of described 4th fuse
End be connected with the normally opened auxiliary contact of the second chopper in described mother loop, the normally opened auxiliary contact of described second chopper and
In described mother loop, the normally opened auxiliary contact of the 4th disconnecting switch connect, and the normally opened auxiliary contact of described 4th disconnecting switch are also
It is connected with the normally opened auxiliary contact of the 3rd disconnecting switch in described mother loop, the normally opened auxiliary contact of described 3rd disconnecting switch
Also it is connected with described isolating-switch locking little bus gbm, the little bus gbm of described isolating-switch locking also keeps apart with described second
The normally opened auxiliary contact closing and the common port of the normally opened auxiliary contact of described first disconnecting switch connect, described second disconnecting switch
Normally opened auxiliary contact be also connected with the common port of described first electromagnetic lock and the normally closed auxiliary contact of described second disconnecting switch,
The normally closed auxiliary also with described second electromagnetic lock and described first disconnecting switch for the normally opened auxiliary contact of described first disconnecting switch
The common port of contact connects.
4. interlock control circuit according to claim 1 is it is characterised in that described 3rd interlock control circuit includes the 3rd
Fuse, the 4th fuse, the 3rd electromagnetic lock and the 4th electromagnetic lock, wherein,
The first end of described 3rd fuse is connected with the little bus positive supply+hm of described combined floodgate, and the second of described 3rd fuse
End is connected with the first end of described 3rd electromagnetic lock, the second end of described 3rd electromagnetic lock and described mother loop second chopper
Normally closed auxiliary contact connect, the normally closed auxiliary contact of described second chopper also closes a floodgate little bus negative supply-hm even with described
Connect, the first end of described 4th electromagnetic lock is connected with the common port of described 3rd fuse and described 3rd electromagnetic lock, described
Second end of four electromagnetic locks is connected with the common port of described 3rd electromagnetic lock and described second chopper normally closed auxiliary contact.
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| CN201620730754.7U CN205920338U (en) | 2016-07-12 | 2016-07-12 | Double -bus control circuit's interlocking control circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107908137A (en) * | 2017-12-04 | 2018-04-13 | 常熟开关制造有限公司(原常熟开关厂） | Electrical interlocking control device and its control method, automatic change-over |
| CN107994578A (en) * | 2018-01-05 | 2018-05-04 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of bus single-subsection and double section wiring anti-incorrect manipulation deadlock control loops |
| CN108574279A (en) * | 2018-06-04 | 2018-09-25 | 河南森源电气股份有限公司 | A kind of double-bus back brake anti-misoperation control device and a kind of double-bus power supply system |
| CN110729716A (en) * | 2018-07-17 | 2020-01-24 | 河南平芝高压开关有限公司 | Circuit of double-bus inverted bus operation shared auxiliary contact |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107908137A (en) * | 2017-12-04 | 2018-04-13 | 常熟开关制造有限公司(原常熟开关厂） | Electrical interlocking control device and its control method, automatic change-over |
| CN107908137B (en) * | 2017-12-04 | 2019-06-28 | 常熟开关制造有限公司(原常熟开关厂） | Electrical interlocking control device and its control method, automatic change-over |
| CN107994578A (en) * | 2018-01-05 | 2018-05-04 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of bus single-subsection and double section wiring anti-incorrect manipulation deadlock control loops |
| CN107994578B (en) * | 2018-01-05 | 2024-05-24 | 中国能源建设集团陕西省电力设计院有限公司 | Double-bus single-section and double-section wiring misoperation-preventing locking control loop |
| CN108574279A (en) * | 2018-06-04 | 2018-09-25 | 河南森源电气股份有限公司 | A kind of double-bus back brake anti-misoperation control device and a kind of double-bus power supply system |
| CN108574279B (en) * | 2018-06-04 | 2024-01-19 | 河南森源电气股份有限公司 | Double-bus switching misoperation prevention control device and double-bus power supply system |
| CN110729716A (en) * | 2018-07-17 | 2020-01-24 | 河南平芝高压开关有限公司 | Circuit of double-bus inverted bus operation shared auxiliary contact |
| CN110729716B (en) * | 2018-07-17 | 2023-10-27 | 河南平芝高压开关有限公司 | Circuit for sharing auxiliary contact for double-bus inverted bus operation |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201110 Address after: No.107 Nanzheng street, TangChang Town, Pidu District, Chengdu, Sichuan 610000 Patentee after: Sichuan Electric Appliance Group middle and low voltage intelligent Distribution Co.,Ltd. Address before: Pixian 611733 Sichuan province Chengdu city TangChang Town North Street Patentee before: SICHUAN ELECTRICAL APPARATUS Co.,Ltd. |