CN205810666U - A kind of double-bus isolator operation locking electric loop - Google Patents
A kind of double-bus isolator operation locking electric loop Download PDFInfo
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- CN205810666U CN205810666U CN201620744538.8U CN201620744538U CN205810666U CN 205810666 U CN205810666 U CN 205810666U CN 201620744538 U CN201620744538 U CN 201620744538U CN 205810666 U CN205810666 U CN 205810666U
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- bus
- isolating switch
- auxiliary
- bus isolating
- electromagnetic lock
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Abstract
This utility model is about a kind of double-bus isolator operation locking electric loop, including DC source, I bus isolating switch auxiliary circuit in parallel and II bus isolating switch auxiliary circuit and chopper auxiliary normally closed contact；I bus isolating switch auxiliary circuit includes the I bus isolating switch electromagnetic lock press button of series connection, I bus isolating switch electromagnetic lock coil and II bus isolating switch auxiliary normally closed contact；II bus isolating switch auxiliary circuit includes the II bus isolating switch electromagnetic lock press button of series connection, II bus isolating switch electromagnetic lock coil and I bus isolating switch auxiliary normally closed contact.Utilizing this loop, chopper is in a point position, and after I bus isolating switch closing operation, II bus isolating switch can not carry out closing operation；After chopper disconnects, I is female or mother's II disconnecting switch just can carry out closing a floodgate or opening operation, and then avoids on-load to disconnect disconnecting switch or one section of bus to misoperation fault when another section of bus belt load combined floodgate or disconnection.
Description
Technical field
This utility model relates to isolator operation applied technical field, particularly relates to a kind of double-bus isolator operation
Locking electric loop.
Background technology
Along with the raising of power supply safety reliability requirement, in relatively large transformer station, power system high-tension switch cabinet is general
All configure double-bus to power.According to producing load and network system ruuning situation, carry out bus frequently by disconnecting switch and stop sending
The adjustment of electricity grid switching operation and power supply bus running manner.
See Fig. 1, for typical double-bus disconnecting switch a kind of in prior art corresponding feed out circuit and bus contact
Primary system circuit diagram, this system includes the double-bus disconnecting switch grid switching operation loop feeding out circuit, I bus in this loop
Disconnecting switch QS1, one end of II bus isolating switch QS2 are connected with I bus, II bus respectively, above-mentioned two disconnecting switch
After the other end is connected in parallel, then being connected with one end of circuit breaker Q F, the other end of circuit breaker Q F connects disconnecting switch QS3, and this is
System also includes the bus contact loop of I bus, II bus, I bus mother disconnecting switch QS1-1, mother open circuit in this loop
Device QF-1, II bus mother disconnecting switch QS2-1 is sequentially connected in series.
Due to foregoing circuit construction features, when double-bus isolator operation, often there will be on-load wrong diagnosis and open isolation
Switch, or left by another section of bus load false switching power transmission of one section of bus belt and on-load separation by mistake by disconnecting switch
Close the operating accidents such as arcing short circuit.So, prior art, it is provided that the blocking device of disconnecting switch, it is broadly divided into electric interlock
And mechanical chain, the wherein principle of disconnecting switch electric blocking, it is simply that utilize the auxiliary of the equipment such as chopper, disconnecting switch to connect
Point, connection with good conditionsi in secondary electric control loop, form "AND" and the logical relation of "or", control connecing of electric power loop
Through and off are opened, thus reach to control the purpose of primary equipment.But existing blocking device design function is the most perfect, double-bus
Disconnecting switch misoperation fault still can occur often.
Utility model content
For overcoming problem present in correlation technique, this utility model provides a kind of double-bus isolator operation locking electricity
Gas
Loop.
The double-bus isolator operation locking electric loop of this utility model embodiment, including DC source, chopper
Auxiliary normally closed contact, I bus isolating switch auxiliary circuit in parallel and II bus isolating switch auxiliary circuit, wherein:
One end of described I bus isolating switch auxiliary circuit is connected with the positive pole of described DC source, the other end is with described
One end of chopper auxiliary normally closed contact connects, and the other end of described chopper auxiliary normally closed contact is negative with described DC source
Pole connects；
One end of described II bus isolating switch auxiliary circuit is connected with the positive pole of described DC source, the other end is with described
The one end connecting described I bus isolating switch auxiliary circuit in chopper auxiliary normally closed contact connects；
Described I bus isolating switch auxiliary circuit includes that the I bus isolating switch electromagnetic lock of series connection and II bus are kept apart
Close auxiliary normally closed contact, described I bus isolating switch electromagnetic lock include series connection I bus isolating switch electromagnetic lock press button and
I bus isolating switch electromagnetic lock coil；
Described II bus isolating switch auxiliary circuit includes that the II bus isolating switch electromagnetic lock of series connection and I bus are kept apart
Closing auxiliary normally closed contact, described II bus isolating switch electromagnetic lock includes the II bus isolating switch electromagnetic lock press button of series connection
With II bus isolating switch electromagnetic lock coil.
Alternatively, described one end of I bus isolating switch electromagnetic lock be connected with the positive pole of described DC source, the other end with
One end of described II bus isolating switch auxiliary normally closed contact connects, and described II bus isolating switch assists another of normally closed contact
The one end with described chopper auxiliary normally closed contact is held to be connected.
Alternatively, described one end of II bus isolating switch electromagnetic lock be connected with the positive pole of described DC source, the other end
Being connected with one end of described I bus isolating switch auxiliary normally closed contact, described I bus isolating switch assists another of normally closed contact
The one end with described chopper auxiliary normally closed contact is held to be connected.
Alternatively, described electric loop also includes I bus isolating switch auxiliary normal opened contact, II bus isolating switch auxiliary
Normal opened contact and mother isolation auxiliary circuit, wherein:
One end of described I bus isolating switch auxiliary normal opened contact assists in normally closed contact with described I bus isolating switch
The one end that one end connects, the other end isolates auxiliary circuit with described mother connecting described II bus isolating switch electromagnetic lock connects
Connecing, the other end of described mother isolation auxiliary circuit is connected with the negative pole of described DC source；
One end of described II bus isolating switch auxiliary normal opened contact assists normally closed contact with described II bus isolating switch
One end of middle connection described I bus isolating switch electromagnetic lock connects, the other end is connected I mother in described mother isolation auxiliary circuit
One end of line disconnecting switch auxiliary normal opened contact connects；
Described mother isolation auxiliary circuit includes that the I mother disconnecting switch auxiliary normal opened contact of series connection, II mother are kept apart
Close auxiliary normal opened contact and bus auxiliary normal opened contact.
Alternatively, described electric loop also include being connected on I or II bus isolating switch auxiliary normal opened contact and mother every
Public locking bus between auxiliary circuit, wherein:
One end of described common bus isolates with described I bus isolating switch auxiliary normal opened contact and described II bus respectively
Switch auxiliary normal opened contact connects, the other end is connected with described mother isolation auxiliary circuit.
Alternatively, the supply voltage of described DC source is 220V.
Alternatively, being provided with electromagnetic lock pin in described I bus isolating switch electromagnetic lock, described electromagnetic lock pin is isolated with I bus
The operation handle of switch connects.
Alternatively, described II bus isolating switch electromagnetic lock is provided with electromagnetic lock pin, described electromagnetic lock pin and II bus every
The operation handle leaving pass connects.
The double-bus isolator operation locking electric loop of this utility model embodiment, when chopper divides, double mothers
The conversion of the falling bus operation under non-cyclization state of the line disconnecting switch, before I bus isolating switch is carried out closing operation, presses I
I bus isolating switch electromagnetic lock press button on bus isolating switch electromagnetic lock, I bus isolating switch electromagnetic lock coil obtains
Electricity, I bus isolating switch electromagnetic lock unlocking, just can carry out the closing operation of I bus isolating switch, I bus isolating switch closes a floodgate
After operating successfully, I bus isolating switch auxiliary normally closed contact simultaneously switches off, and has cut off the auxiliary that II bus isolating switch is corresponding
Circuit, so the disconnecting switch of II bus does not the most allow to carry out closing operation, can only be after I bus isolating switch disconnect, ability
II bus isolating switch is carried out closing operation.And then ensure that two sections of buses of I, II section under non-cyclization state, as I bus every
Leave pass when being in "on" position, then to II bus isolating switch closing operation, may cause by I section bus by II bus
Disconnecting switch carries out on-load false switching power transmission operating accident to II bus, and has operated at II bus isolating switch false switching
After, on-load point I bus isolating switch operation by mistake causes the generation of short circuit accident again.Same, it is also possible to prevent by II section
Bus carries out on-load false switching power transmission operating accident by I bus isolating switch and disconnects II bus isolating switch I bus
Time, the generation of on-load point II bus isolating switch operation short circuit accident by mistake again.Simultaneously as in this utility model embodiment
Loop is additionally provided with chopper auxiliary normally closed contact, when therefore arbitrary single bus isolating switch being turned off operation, it is necessary to
To be chopper can be carried out when point position, it is to avoid on-load draws the generation of the accident of disconnecting switch by mistake.
Accompanying drawing explanation
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet of the present utility model
Embodiment, and be used for explaining principle of the present utility model together with description.
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, for ordinary skill people
For Yuan, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 be in prior art a kind of typical double-bus disconnecting switch corresponding feed out circuit and bus contact is once
System circuit diagram；
A kind of double-bus isolator operation locking electric loop that Fig. 2 provides for this utility model embodiment；
A kind of double-bus isolator operation locking electric loop that Fig. 3 provides for this utility model embodiment.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with this utility model.On the contrary, they be only with such as
The example of the apparatus and method that aspects that described in detail in appended claims, more of the present utility model are consistent.
This utility model embodiment provides a kind of double-bus isolator operation locking electric loop, and this loop is arranged on
Secondary side, during to realize double bus isolation is left pass combined floodgate and opening operation, safe and reliable operation, prevent misoperation fault
Occur.
See Fig. 2, a kind of double-bus isolator operation locking electric loop provided for this utility model embodiment, should
Loop includes that DC source KM, chopper assist normally closed contact QF1, I bus isolating switch auxiliary circuit in parallel and II bus
Disconnecting switch auxiliary circuit.
Described I bus isolating switch auxiliary circuit includes the I bus isolating switch electromagnetic lock YS1 of series connection1With II bus every
Leave pass auxiliary normally closed contact QS21, described I bus isolating switch electromagnetic lock YS11I bus isolating switch electromagnetism including series connection
Lock press button SB11With I bus isolating switch electromagnetic lock coil DS11。
Described II bus isolating switch auxiliary circuit includes the II bus isolating switch electromagnetic lock YS2 of series connection1With I bus every
Leave pass auxiliary normally closed contact QS11, described II bus isolating switch electromagnetic lock YS21II bus isolating switch electricity including series connection
Magnetic padlock press button SB21With II bus isolating switch electromagnetic lock coil DS21。
In the present embodiment, I bus isolating switch electromagnetic lock press button SB11The positive pole of one end and DC source KM
Connection, the other end and I bus isolating switch electromagnetic lock coil DS11One end connect, I bus isolating switch electromagnetic lock coil DS11
The other end and II bus isolating switch assist normally closed contact QS21One end connect, II bus isolating switch auxiliary normally closed contact
QS21The other end and chopper assist normally closed contact QF1One end connect, chopper auxiliary normally closed contact QF1The other end with
The negative pole of DC source KM connects；Meanwhile, II bus isolating switch electromagnetic lock press button SB21One end keep apart with I bus
Close electromagnetic lock press button SB11One end of the positive pole of middle connection DC source KM connects, the other end is electric with II bus isolating switch
Magnetic padlock coil DS21One end connect, II bus isolating switch electromagnetic lock coil DS21The other end and I bus isolating switch assist
Normally closed contact QS11One end connect, I bus isolating switch auxiliary normally closed contact QS11The other end and chopper auxiliary normally closed connect
Point QF1Middle connection II bus isolating switch auxiliary normally closed contact QS21One end connect.
Further, I bus isolating switch electromagnetic lock YS11In be provided with electromagnetic lock pin, the I of its electromagnetic lock pin and primary side
The operation handle of bus isolating switch connects, and is used for pinning I bus isolating switch；Same, II bus isolating switch electromagnetic lock
YS21In be provided with electromagnetic lock pin, its electromagnetic lock pin is connected with the operation handle of the II bus isolating switch of primary side, is used for pinning
II bus isolating switch.
Certainly, normally closed contact is assisted to be not limited at II (I) bus isolating switch electromagnetic lock and I (II) bus isolating switch
Above-mentioned position relationship, it is also possible to exchange as required.The supply voltage of DC source KM is 220V, but is not limited to described
Numerical value.
The loop that the present embodiment provides is chopper when point position, and double-bus disconnecting switch is fallen the most female under non-cyclization state
Electric blocking loop corresponding during line handover operation.
The chopper of above loop correspondence primary side is in a point position, and the female disconnecting switch of I (II) all disconnects position, corresponding open circuit
Device auxiliary normally closed contact QF1Close position, press I bus isolating switch electromagnetic lock YS11In I bus isolating switch electromagnetic lock button
Switch SB11, I bus isolating switch electromagnetic lock coil DS11To electric, now, extract I bus isolating switch electromagnetic lock YS11In
Electromagnetic lock pin, electromagnetic lock unlocks, and I bus isolating switch just can carry out closing operation, but when I bus isolating switch closes a floodgate into
After merit, I bus isolating switch auxiliary normally closed contact QS11Simultaneously switch off, cut off the II bus that II bus isolating switch is corresponding
Disconnecting switch auxiliary circuit, so II bus isolating switch electromagnetic lock YS21Can not unlock, and then make II bus isolating switch incite somebody to action
Closing operation can not be carried out.Finally, it is ensured that two sections of buses of I, II are when non-cyclization, after I bus isolating switch closes a floodgate, then to II
Bus isolating switch closing operation, may cause is carried out on-load by II bus isolating switch to II bus by I section bus
False switching power transmission operating accident.Even, it also avoid after II bus isolating switch false switching has operated, on-load is by mistake again
The operation of I bus isolating switch is divided to cause the generation of short circuit accident.
Same, utilize above-mentioned loop, press II bus isolating switch electromagnetic lock YS21In II bus isolating switch electricity
Magnetic padlock press button SB21, II bus isolating switch electromagnetic lock coil DS21To electric, extract II bus isolating switch electromagnetic lock
YS21In electromagnetic lock pin, electromagnetic lock unlocks, and II bus isolating switch just can carry out closing operation, but when II bus is kept apart
Close after closing a floodgate successfully, II bus isolating switch auxiliary normally closed contact QS21Simultaneously switch off, cut off I bus isolating switch corresponding
I bus isolating switch auxiliary circuit, so I bus isolating switch electromagnetic lock YS11Can not unlock, and then make I bus keep apart
Pass can not carry out closing operation.Finally, it is ensured that two sections of buses of I, II are when non-cyclization, after II bus isolating switch closes a floodgate,
Again to I bus isolating switch closing operation, may cause is carried I bus by I bus isolating switch by II section bus
When load false switching power transmission operating accident and disconnection II bus isolating switch, on-load point II bus isolating switch operation by mistake again
The generation of short circuit accident.
Further, when above two bus isolating switch turn off operation, only chopper can be carried out when point position,
After closing a floodgate for I (II) bus isolating switch, in the operation carrying out its disconnecting switch disconnection, it is to avoid isolation is opened in on-load wrong diagnosis
The generation of the accident of switch.
In conjunction with above-described embodiment, see Fig. 3, the another kind of double-bus disconnecting switch behaviour provided for this utility model embodiment
Making locking electric loop, for chopper when closing position, double bus isolation leaves pass when carrying out the handover operation of falling bus, safe and reliable
Operation, prevent the generation of misoperation fault.
The present embodiment is with upper one difference implemented, and described electric loop also includes that I bus isolating switch auxiliary is normally opened
Contact QS12, II bus isolating switch auxiliary normal opened contact QS22, mother isolation auxiliary circuit and public locking bus GBM, its
In, mother isolation auxiliary circuit includes the I mother disconnecting switch auxiliary normal opened contact QS1-1 of series connection1, II mother disconnecting switch auxiliary
Help normal opened contact QS2-11Normal opened contact QF-1 is assisted with bus1。
In the present embodiment, I bus isolating switch auxiliary normal opened contact QS12One end and I bus isolating switch auxiliary often
Close contact QS11Middle connection II bus isolating switch electromagnetic lock YS21One end connect, the one of the other end and public locking bus GBM
End connects, and the other end of public locking bus GBM connects I mother disconnecting switch auxiliary normal opened contact QS1-11One end, I mother
Disconnecting switch auxiliary normal opened contact QS1-11The other end connect II mother disconnecting switch auxiliary normal opened contact QS2-11One end,
II mother disconnecting switch auxiliary normal opened contact QS2-11The other end connect bus auxiliary normal opened contact QF-11One end,
Bus auxiliary normal opened contact QF-11The other end connect DC source negative pole；
Meanwhile, II bus isolating switch auxiliary normal opened contact QS22One end and II bus isolating switch assist normally closed contact
QS21Middle connection I bus isolating switch electromagnetic lock YS11One end connect, the other end be connected I bus in public locking bus GBM
Disconnecting switch auxiliary normal opened contact QS12One end connect.
It should be noted that I mother disconnecting switch assists normal opened contact QS1-1 in mother isolation auxiliary circuit1, II female
Connection disconnecting switch auxiliary normal opened contact QS2-11Normal opened contact QF-1 is assisted with bus1Position relationship be not limited to this
The mode that embodiment provides.
In electric switching operation, bus is large-scale grid switching operation more typically, relates to spacing devices more, for guaranteeing
Operate safe, unimpeded, it is desirable to relevant primary equipment, operation circuit have the highest reliability, therefore arrange in the present embodiment
Public locking bus GBM, to reduce the solution of falling bus latching operation occurrence probability.
The loop that the present embodiment provides is chopper when closing position, and double bus isolation leaves pass and carries out the cyclization switching of falling bus
Electric blocking loop during operation operation.
Circuit breaker Q F is closing position, and two sections of bus isolating switch of I, II are carried out the cyclization handover operation of falling bus.Before operation, one
The I bus mother disconnecting switch of secondary side, bus and II bus mother disconnecting switch all should close position, corresponding I mother
Disconnecting switch auxiliary normal opened contact QS1-11Bus auxiliary normal opened contact QF-11Normally opened with II mother disconnecting switch auxiliary
Contact QS2-11All close, connected the negative pole of DC source for public locking bus GBM.
If I bus isolating switch is closing position, I mother disconnecting switch auxiliary normal opened contact QS1 corresponding thereto2Close
Close, press II bus isolating switch electromagnetic lock press button SB21, then the electromagnetic lock that II bus isolating switch is corresponding has been connected
Loop, II bus isolating switch electromagnetic lock coil DS21Electric, extract its electromagnetic lock pin, after electromagnetic lock unlocks, II bus every
Leave pass and just can carry out closing operation, and then I, two sections of bus isolating switch can carry out Loop Closing Operation, two sections of bus cyclizations of I, II
After success, then disconnect I bus isolating switch, then powered by II bus isolating switch, it is achieved that on-load carries out disconnecting switch
The handover operation of falling bus, it is therefore prevented that two sections of bus Loop Closing Operations in the case of voltage differs, causes other accidents such as short circuit
Generation.
Same, if II bus isolating switch is closing position, II mother disconnecting switch corresponding thereto assists normally opened connecing
Point QS22Guan Bi, presses I bus isolating switch electromagnetic lock press button SB11, then the electricity that I bus isolating switch is corresponding has been connected
Magnetic padlock loop, I bus isolating switch electromagnetic lock coil DS11, extract its electromagnetic lock pin, after electromagnetic lock unlocks, I bus is isolated
Switch just can carry out closing operation, and then two sections of bus isolating switch of I, II can carry out Loop Closing Operation, also achieves band equally negative
Lotus carries out the handover operation of falling bus of disconnecting switch, it is therefore prevented that two sections of bus Loop Closing Operations in the case of voltage differs, and leads
Cause the generation of other accidents such as short circuit.
From above technical scheme, the double-bus isolator operation locking electric loop that the present embodiment provides, no matter
It is chopper when point position, to the combined floodgate power transmission of two sections of bus isolating switch of I, II, disconnects power failure operation, or chopper is closing
During position, two sections of bus isolating switch of I, II are carried out the cyclization handover operation of falling bus, can be transferred through on isolator operating mechanism
The electromagnetic lock installed and electric blocking loop thereof, it is achieved safe and reliable operation, prevent the generation of misoperation fault.
Those skilled in the art, after considering description and putting into practice the utility model of utility model here, will readily occur to this
Other embodiment of utility model.The application is intended to any modification of the present utility model, purposes or adaptations,
These modification, purposes or adaptations are followed general principle of the present utility model and include that this utility model is unpractical new
The common knowledge in the art of type or conventional techniques means.Description and embodiments is considered only as exemplary, this reality
Point out by claim below by novel true scope and spirit.
It should be appreciated that this utility model is not limited to accurate knot described above and illustrated in the accompanying drawings
Structure, and various modifications and changes can carried out without departing from the scope.Scope of the present utility model is only wanted by appended right
Ask and limit.
Claims (8)
1. a double-bus isolator operation locking electric loop, it is characterised in that often include DC source, chopper auxiliary
Close contact, I bus isolating switch auxiliary circuit in parallel and II bus isolating switch auxiliary circuit, wherein:
One end of described I bus isolating switch auxiliary circuit is connected with the positive pole of described DC source, the other end and described open circuit
One end of device auxiliary normally closed contact connects, and the other end of described chopper auxiliary normally closed contact is with the negative pole of described DC source even
Connect；
One end of described II bus isolating switch auxiliary circuit is connected with the positive pole of described DC source, the other end and described open circuit
The one end connecting described I bus isolating switch auxiliary circuit in device auxiliary normally closed contact connects；
Described I bus isolating switch auxiliary circuit includes that the I bus isolating switch electromagnetic lock of series connection and II bus isolating switch are auxiliary
The I bus isolating switch electromagnetic lock press button of series connection and I are female to help normally closed contact, described I bus isolating switch electromagnetic lock to include
Line disconnecting switch electromagnetic lock coil；
Described II bus isolating switch auxiliary circuit includes that the II bus isolating switch electromagnetic lock of series connection and I bus isolating switch are auxiliary
Normally closed contact, described II bus isolating switch electromagnetic lock is helped to include II bus isolating switch electromagnetic lock press button and the II of series connection
Bus isolating switch electromagnetic lock coil.
Double-bus isolator operation locking electric loop the most according to claim 1, it is characterised in that described I bus
One end of disconnecting switch electromagnetic lock is connected with the positive pole of described DC source, the other end is normal with described II bus isolating switch auxiliary
The one end closing contact connects, and the other end of described II bus isolating switch auxiliary normally closed contact is normally closed with described chopper auxiliary to be connect
One end of point connects.
Double-bus isolator operation locking electric loop the most according to claim 2, it is characterised in that described II bus
One end of disconnecting switch electromagnetic lock is connected with the positive pole of described DC source, the other end is normal with described I bus isolating switch auxiliary
The one end closing contact connects, and the other end of described I bus isolating switch auxiliary normally closed contact is normally closed with described chopper auxiliary to be connect
One end of point connects.
Double-bus isolator operation locking electric loop the most according to claim 3, it is characterised in that described electric time
Road also includes I bus isolating switch auxiliary normal opened contact, II bus isolating switch auxiliary normal opened contact and mother isolation auxiliary electricity
Road, wherein:
One end of described I bus isolating switch auxiliary normal opened contact is connected in described I bus isolating switch auxiliary normally closed contact
One end of described II bus isolating switch electromagnetic lock connects, the other end is connected with one end of described mother isolation auxiliary circuit, institute
The other end stating mother isolation auxiliary circuit is connected with the negative pole of described DC source；
One end of described II bus isolating switch auxiliary normal opened contact connects in described II bus isolating switch auxiliary normally closed contact
The one end connecing described I bus isolating switch electromagnetic lock connects, the other end and described mother isolate auxiliary circuit is connected I bus every
Leave one end connection closing auxiliary normal opened contact；
Described mother isolation auxiliary circuit includes that the I mother disconnecting switch auxiliary normal opened contact of series connection, II mother disconnecting switch are auxiliary
Help normal opened contact and bus auxiliary normal opened contact.
Double-bus isolator operation locking electric loop the most according to claim 4, it is characterised in that described electric time
Road also includes that the public locking being connected between I or II bus isolating switch auxiliary normal opened contact and mother isolation auxiliary circuit is female
Line, wherein:
One end of described common bus assists normal opened contact and described II bus isolating switch with described I bus isolating switch respectively
Auxiliary normal opened contact connects, the other end is connected with described mother isolation auxiliary circuit.
6. want the double-bus isolator operation locking electric loop described in 1 according to right, it is characterised in that described DC source
Supply voltage be 220V.
Double-bus isolator operation locking electric loop the most according to claim 1, it is characterised in that described I bus
Being provided with electromagnetic lock pin in disconnecting switch electromagnetic lock, described electromagnetic lock pin is connected with the operation handle of I bus isolating switch.
Double-bus isolator operation locking electric loop the most according to claim 1, it is characterised in that described II bus
Being provided with electromagnetic lock pin in disconnecting switch electromagnetic lock, described electromagnetic lock pin is connected with the operation handle of II bus isolating switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620744538.8U CN205810666U (en) | 2016-07-15 | 2016-07-15 | A kind of double-bus isolator operation locking electric loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620744538.8U CN205810666U (en) | 2016-07-15 | 2016-07-15 | A kind of double-bus isolator operation locking electric loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205810666U true CN205810666U (en) | 2016-12-14 |
Family
ID=57511414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620744538.8U Expired - Fee Related CN205810666U (en) | 2016-07-15 | 2016-07-15 | A kind of double-bus isolator operation locking electric loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205810666U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024492A (en) * | 2016-07-15 | 2016-10-12 | 山东钢铁股份有限公司 | Dual-bus disconnecting switch operation blocking electric circuit |
| CN107819360A (en) * | 2017-11-22 | 2018-03-20 | 深圳供电局有限公司 | Bus control loop, device and system |
-
2016
- 2016-07-15 CN CN201620744538.8U patent/CN205810666U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024492A (en) * | 2016-07-15 | 2016-10-12 | 山东钢铁股份有限公司 | Dual-bus disconnecting switch operation blocking electric circuit |
| CN106024492B (en) * | 2016-07-15 | 2018-09-28 | 山东钢铁股份有限公司 | A kind of double-bus isolator operation locking electric loop |
| CN107819360A (en) * | 2017-11-22 | 2018-03-20 | 深圳供电局有限公司 | Bus control loop, device and system |
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