CN207098597U - The control circuit of breaker - Google Patents
The control circuit of breaker Download PDFInfo
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- CN207098597U CN207098597U CN201720704604.3U CN201720704604U CN207098597U CN 207098597 U CN207098597 U CN 207098597U CN 201720704604 U CN201720704604 U CN 201720704604U CN 207098597 U CN207098597 U CN 207098597U
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Abstract
The utility model provides a kind of control circuit of breaker, and the positive pole of power supply, the coil for jumping position relay, the first normally closed switch, the negative pole of closing coil and power supply are sequentially connected in series；The moving contact of first change-over switch is connected to the coil for jumping position relay, first stationary contact of the first change-over switch is idle contact, second stationary contact is connected to the contact between the negative pole and the closing coil of power supply, and the 3rd stationary contact is connected to the contact between the first normally closed switch and closing coil；The positive pole of power supply, the coil for closing position relay, the second normally closed switch, the negative pole of switching winding and power supply are sequentially connected in series；The moving contact of second change-over switch is connected to the coil for closing position relay, first stationary contact of the second change-over switch is idle contact, second stationary contact is connected to the contact between the negative pole and switching winding of power supply, and the 3rd stationary contact is connected to the contact between the second normally closed switch and switching winding.The utility model can quickly determine the abnormal area of control circuit.
Description
Technical field
Power transmission and transformation control technology field is the utility model is related to, more particularly to a kind of control circuit of breaker.
Background technology
In breaker operation maintenance, frequently encounter protection device and send " control loop is abnormal " signal." control loop is different
Often " signal sends that to be typically due to jump position relay and close position relay simultaneously powered or simultaneously caused by dead electricity.This feelings
Under condition, breaker tends not to normal division, has had a strong impact on the normal operation of transmission and distribution circuit and power equipment, it is necessary to arrange immediately
Except failure.
Usual attendant can measure one by one to each point voltage in control loop, progressively reduce failure using exclusive method
Region, until finding trouble point.
During the utility model is realized, designer has found problems with the prior art at least be present：
Attendant uses the time-consuming effort of the exclusive method localization of faults, less efficient.
Utility model content
In view of this, the utility model provides a kind of control circuit of breaker, can be fast when control circuit occurs abnormal
Speed finds the trouble point of control circuit.
Specifically, including following technical scheme：
The utility model provides a kind of control circuit of breaker, including power supply, jump position relay, close position relay,
First normally closed switch, the second normally closed switch, closing coil and switching winding, wherein,
The positive pole of the power supply, coil, first normally closed switch, the closing coil and the institute for jumping position relay
The negative pole for stating power supply is sequentially connected in series；The moving contact of first change-over switch is connected to the coil of the jump position relay away from the electricity
One end of the positive pole in source, the first stationary contact of first change-over switch is idle contact, and the second of first change-over switch is quiet
Contact portion to positioned at the power supply negative pole and the closing coil between the first tie point, first change-over switch
3rd stationary contact is connected to the second tie point between first normally closed switch and the closing coil；
The positive pole of the power supply, coil, second normally closed switch, the switching winding and the institute for closing position relay
The negative pole for stating power supply is sequentially connected in series；The moving contact of second change-over switch is connected to the coil of the conjunction position relay away from the electricity
One end of the positive pole in source, the first stationary contact of second change-over switch is idle contact, and the second of second change-over switch is quiet
Contact portion to positioned at the power supply negative pole and the switching winding between the 3rd tie point, second change-over switch
3rd stationary contact is connected to the 4th tie point between second normally closed switch and the switching winding.
Selectively, the control circuit also includes normally closed auxiliary contact, and the normally closed auxiliary contact is connected to described
Between one normally closed switch and second tie point；
4th stationary contact of first change-over switch is connected to positioned at first normally closed switch and the normally closed auxiliary
The 5th tie point between contact.
Selectively, the control circuit also includes energy storage auxiliary contact, and the energy storage auxiliary contact is connected to described
Between one normally closed switch and the 5th tie point；
5th stationary contact of first change-over switch is connected to positioned at first normally closed switch and energy storage auxiliary
The 6th tie point between contact.
Selectively, the control circuit also includes handcart work location aided rebroadcast contact and handcart testing position auxiliary connects
Point, it is normally closed that described first is connected to after handcart work location aided rebroadcast contact and the handcart testing position auxiliary contact parallel connection
Between switch and the 6th tie point.
Selectively, the control circuit also includes normally opened auxiliary contact, and the normally opened auxiliary contact is connected to described
Between two normally closed switch and the 4th tie point.
Selectively, the moving contact of first change-over switch is directly connected to the coil of the jump position relay, or logical
Cross the coil that first normally closed switch is connected to the jump position relay.
Selectively, the moving contact of second change-over switch is directly connected to the coil of the conjunction position relay, or logical
Cross the coil that second normally closed switch is connected to the conjunction position relay.
Selectively, the control circuit also includes the first indicator lamp, the positive pole of the power supply, the position relay of jumping
Switch contacts, the negative pole of the first indicator lamp and the power supply are sequentially connected in series.
Selectively, the control circuit also includes the second indicator lamp, the positive pole of the power supply, the position relay that closes
Switch contacts, the negative pole of the second indicator lamp and the power supply are sequentially connected in series.
The beneficial effect for the technical scheme that the utility model embodiment provides：
Using the control circuit of breaker provided by the utility model, when breaker occurs abnormal, at breaker
In separating brake or closing position, the powered situation for jumping position relay and conjunction position relay, the first change-over switch and the second conversion are opened
The movable end of the moving contact of pass is connected to different stationary contacts, and combines the powered feelings for now jumping position relay and conjunction position relay
Condition, you can judge the fault zone of control circuit, convenient and swift, efficiency is higher.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Accompanying drawing 1 is a kind of schematic diagram of the control circuit of breaker in the embodiment of the utility model one；
Accompanying drawing 2 is the flow chart of the method for the control circuit of the breaker provided using the embodiment of the utility model one；
Accompanying drawing 3 is the flow chart of the method for the control circuit of the breaker provided using the embodiment of the utility model one.
Reference in figure is respectively：
+KM：Positive source；-KM：Power cathode；KK：Divide-shut brake control handle；K1：First normally closed switch；K2：Second is normal
Make and break is closed；S9：Handcart work location aided rebroadcast contact；S8：Handcart testing position auxiliary contact；S1：Energy storage auxiliary contact；DL1：Often
Close auxiliary contact；DL2：Normally opened auxiliary contact；HQ：Closing coil；TQ：Switching winding；TK：First change-over switch；HK：Second turn
Change switch；TWJ：Jump position relay；HWJ：Close position relay；1st, the first stationary contact of the first change-over switch；2nd, the first conversion is opened
The second stationary contact closed；3rd, the 3rd stationary contact of the first change-over switch；4th, the 4th stationary contact of the first change-over switch；5th, first turn
Change the 5th stationary contact of switch；6th, the first stationary contact of the second change-over switch；7th, the 3rd stationary contact of the second change-over switch；8th,
Second stationary contact of two change-over switches；A, the first tie point；B, the second tie point；C, the 3rd tie point；D, the 4th tie point；
E, the 5th tie point；F, the 6th tie point.
Embodiment
To make the technical solution of the utility model and advantage clearer, the utility model is implemented below in conjunction with accompanying drawing
Mode is described in further detail.
The embodiment of the utility model one provides a kind of control circuit of breaker, as shown in figure 1, including power supply, jumping position
Relay TWJ, position relay HWJ, the first normally closed switch K1, the second normally closed switch K2, closing coil HQ and switching winding TQ are closed,
Wherein,
Positive pole+the KM of power supply, the coil for jumping position relay TWJ, the first normally closed switch K1, closing coil HQ and power supply
Negative pole-KM is sequentially connected in series；First change-over switch TK moving contact be connected to jump position relay TWJ coil away from power supply just
Pole+KM one end, the first change-over switch TK the first stationary contact 1 are idle contact, the first change-over switch TK the second stationary contact 2
The first tie point a being connected between the negative pole-KM and closing coil HQ of power supply, the first change-over switch TK the 3rd stationary contact
Point 3 is connected to the second tie point b between the first normally closed switch K1 and closing coil；
Positive pole+the KM of power supply, the coil for closing position relay HWJ, the second normally closed switch K2, switching winding TQ and power supply
Negative pole-KM is sequentially connected in series；Second change-over switch HK moving contact be connected to close position relay HWJ coil away from power supply just
Pole+KM one end, the second change-over switch HK the first stationary contact 6 is idle contact, and the second change-over switch HK the second stationary contact 8 connects
The 3rd tie point c being connected between the negative pole-KM and switching winding TQ of power supply, the second change-over switch HK the 3rd stationary contact
7 are connected to the 4th tie point d between the second normally closed switch K2 and switching winding TQ.
The control circuit of the breaker provided using the present embodiment, when breaker works, the first change-over switch TK's is dynamic
The movable end of contact is connected to the first change-over switch TK the first stationary contact 1, the movable end of the second change-over switch HK moving contact
It is connected to the second change-over switch HK the first stationary contact 6.When control circuit occurs abnormal, when breaker is in closing position and jump
Position relay TWJ and conjunction position relay HWJ are not charged, then the circuit that explanation is closed between position relay HWJ and negative pole is asked
Topic, need to find out fault zone.Then fault zone is searched according to following flows：If the second change-over switch HK moving contact is directly connected to
To the coil for closing position relay HWJ, the second normally closed switch K2 is disconnected, and the movable end of the second change-over switch HK moving contact is connected
It is connected to the second change-over switch HK different stationary contacts；If second switch HK moving contact is connected to conjunction by the second normally closed switch K2
The coil of position relay, the movable end of the second change-over switch HK moving contact is connected to the second change-over switch K2 different stationary contacts
Point.When the movable end of the second change-over switch HK moving contact is connected to the second change-over switch K2 different stationary contacts, according to this
When jump position relay TWJ powered situation and can judge the fault zone of control circuit.When breaker be in closing position and
Jump position relay TWJ and conjunction position relay HWJ is powered, can determine that it is to jump position relay by disconnecting the first normally closed switch K1
Board problem or circuit question inside TWJ.When breaker is in open position and jumps position relay TWJ and closes position relay HWJ
Not charged, then the circuit that explanation is jumped between position relay TWJ and negative pole goes wrong, and need to find out fault zone.Then under
State flow and search fault zone：If the first change-over switch TK moving contact is directly connected to the coil for closing position relay HWJ, disconnect
First normally closed switch K1, the movable end of the first change-over switch TK moving contact is connected to the second change-over switch HK different stationary contacts
Point；If the first change-over switch TK moving contact is connected to the coil for closing position relay by the first normally closed switch K1, by first turn
The movable end for changing switch TK moving contact is connected to the first normally closed switch K1 different stationary contacts.When moving for the first change-over switch TK
When the movable end of contact is connected to the first normally closed switch K1 different stationary contacts, according to the powered feelings for now jumping position relay TWJ
Condition can judge the fault zone of control circuit.When breaker is in open position and jumps position relay TWJ and closes position relay
Device HWJ is powered, can determine that it is to close board problem or circuit inside the relay HWJ of position to ask by disconnecting the second normally closed switch K2
Topic.
The control circuit for the breaker that the present embodiment provides, when control circuit occurs abnormal, by the way that the first conversion is opened
The movable end for closing TK moving contact and the second change-over switch HK moving contact is connected to different stationary contacts, according to jump position relay
TWJ and the powered situation for closing position relay HWJ are that can determine that fault zone, and convenient and swift, efficiency is higher.
In the present embodiment, as shown in figure 1, the first change-over switch TK moving contact, which may be coupled directly to, jumps position relay
TWJ coil, but the utility model not limited to this, the first change-over switch TK moving contact can also be connected by the first normally closed switch K1
It is connected to the coil for jumping position relay TWJ.
Second change-over switch HK moving contact may be coupled directly to the coil for closing position relay HWJ, but the utility model is not
It is limited to this, as shown in figure 1, the second change-over switch HK moving contact can be also connected to by the second normally closed switch K2 closes position relay
HWJ coil.
In the present embodiment, as shown in figure 1, control circuit also includes divide-shut brake control handle KK, for controlling breaker
Sub-gate and closing state.When 1. and 2. divide-shut brake control handle KK connects contact, breaker is in open position, when point
Shutting-brake control handle KK by contact 3. with 4. connecting when, breaker is in closing position.
In the present embodiment, as shown in figure 1, control circuit also includes normally closed auxiliary contact DL1, normally closed auxiliary contact DL1
It is connected between the first normally closed switch K1 and the second tie point b；
First change-over switch TK the 4th stationary contact 4 is connected to positioned at the first normally closed switch K1 and normally closed auxiliary contact DL1
Between the 5th tie point e.
So, when breaker be in open position, jump position relay TWJ and close position relay HWJ it is not charged, and determine
When board is normal, closing coil is normal inside jump position relay TWJ, it is quiet that the first change-over switch TK moving contact is connected to the 4th
Contact 4, according to the powered situation for jumping position relay TWJ and conjunction position relay HWJ, you can whether determine normally closed auxiliary contact DL1
Go wrong.It is first normal when disconnecting when breaker is in closing position, jump position relay TWJ and to close position relay HWJ powered
When K1 is closed in make and break, if it is not charged to jump position relay TWJ, you can determine that normally closed auxiliary contact DL1 is problematic.
In the present embodiment, as shown in figure 1, control circuit also includes energy storage auxiliary contact S1, energy storage auxiliary contact S1 connects
It is connected between the first normally closed switch K1 and the 5th tie point e；
First change-over switch TK the 5th stationary contact 5 be connected to positioned at the first normally closed switch K1 and energy storage auxiliary contact S1 it
Between the 6th tie point f.
When breaker stores up full energy, energy storage auxiliary contact S1 closures, when not storing up full energy, energy storage auxiliary contact S1 breaks
Open.
So, when breaker be in open position, jump position relay TWJ and close position relay HWJ it is not charged, and determine
When jumping board, closing coil and normally closed auxiliary contact DL1 normal inside the relay TWJ of position, by the dynamic of the first change-over switch TK
Contact is connected to the 5th stationary contact 5, according to the powered situation for jumping position relay TWJ and conjunction position relay HWJ, you can it is determined that storage
Whether energy auxiliary contact S1 goes wrong.
In the present embodiment, as shown in figure 1, control circuit also includes handcart work location aided rebroadcast contact S9 and handcart experiment
Location aided rebroadcast contact S8, the is connected to after handcart work location aided rebroadcast contact S9 and handcart testing position auxiliary contact S8 parallel connections
Between one normally closed switch K1 and the 6th tie point f.The handcart of breaker has two states：Working condition and trystate, work as hand
When car is in running order, operating position auxiliary contact S9 closures；When handcart is in trystate, operating position auxiliary contact
S8 is closed.
So, when breaker be in open position, jump position relay TWJ and close position relay HWJ it is not charged, and determine
When jumping board, closing coil, normally closed auxiliary contact DL1 and energy storage auxiliary contact S1 normal inside the relay TWJ of position, by first
Change-over switch TK moving contact is connected to the 5th stationary contact 5, if it is powered to jump position relay TWJ, you can determine handcart operating position
Auxiliary contact S9 or handcart testing position auxiliary contact S8 go wrong.
In the present embodiment, as shown in figure 1, control circuit also includes normally opened auxiliary contact DL2, normally opened auxiliary contact DL2
It is connected between the second normally closed switch K2 and the 4th tie point d.
So, when breaker be in closing position, jump position relay TWJ and close position relay HWJ it is not charged, and determine
When closing position relay HWJ inside boards and switching winding TQ normal, it is quiet that the second change-over switch HK moving contact is connected to the 3rd
Contact 7, if it is powered to close position relay HWJ, you can determine that normally opened auxiliary contact DL2 goes wrong.When breaker is in sub-gate position
When putting, jumping position relay TWJ and conjunction position relay HWJ powered, the second normally closed switch K2 is disconnected, if closing position relay HWJ not
It is powered, then it can determine that normally opened auxiliary contact DL2 goes wrong.
In the present embodiment, control circuit may also include the first indicator lamp, the positive pole+KM of power supply, jump position relay TWJ's
Negative pole-the KM of switch contacts, the first indicator lamp and power supply is sequentially connected in series.When jump position relay TWJ is powered, position relay is jumped
TWJ switch contacts closure, the first indicator lamp are bright；When jump position relay TWJ is not charged, the contact for jumping position relay TWJ is opened
Pass is off, and the first indicator lamp does not work.Thus can by the first indicator lamp come judge jump position relay TWJ whether band
Electricity.
In the present embodiment, control circuit may also include the second indicator lamp, the positive pole+KM of power supply, close position relay HWJ's
Negative pole-the KM of switch contacts, the second indicator lamp and power supply is sequentially connected in series.When conjunction position relay HWJ is powered, position relay is closed
HWJ switch contacts closure, the second indicator lamp are bright；When conjunction position relay HWJ conjunctions position relay HWJ is not charged, position relay is closed
Device HWJ switch contacts are off, and the second indicator lamp does not work.Thus it can judge to close position relay by the second indicator lamp
Whether device HWJ is powered.
Flow such as Fig. 2 and Fig. 3 institutes of circuit abnormality are detected using the control circuit of breaker provided by the utility model
Show, wherein, the powered situation for closing position relay HWJ and jump position relay TWJ is represented with 0 and 1 in figure in order to express easily,
Powered is 1, and not charged is 0.Fault zone is determined using above-mentioned control circuit, it is specific as follows：
As shown in Fig. 2 when breaker is in closing position and jumps position relay TWJ and conjunction position relay HWJ is not charged
When, if the second change-over switch HK moving contact is directly connected to the coil for closing position relay HWJ, the second normally closed switch K2 is disconnected,
And the movable end of the second change-over switch HK moving contact is connected to the second change-over switch HK the second stationary contact 8；If second opens
The moving contact for closing HK is connected to the coil for closing position relay HWJ by the second normally closed switch K2, by the dynamic of the second change-over switch HK
The movable end of contact is connected to the second change-over switch HK the second stationary contact 8；
If it is not charged to close position relay HWJ, it is determined that it is problematic to close board inside the relay HWJ of position；If close position relay
HWJ is powered, then the movable end of the second change-over switch HK moving contact is connected to the second change-over switch HK the 3rd stationary contact 7；
If it is not charged to close position relay HWJ, it is determined that switching winding TQ is problematic；If it is powered to close position relay HWJ,
Determine that normally opened auxiliary contact DL2 goes wrong.
When breaker is in closing position and jumps position relay TWJ and conjunction position relay HWJ powered, by the first conversion
The movable end for switching TK moving contact is connected to the first stationary contact 1, disconnects the first normally closed switch K1, if now jumping position relay
TWJ is powered, it is determined that it is problematic to jump board inside the relay TWJ of position；If it is not charged to jump position relay, it is determined that normally closed auxiliary connects
Point DL1 is problematic.
As shown in figure 3, when breaker is in open position and jumps position relay TWJ and conjunction position relay HWJ is not charged
When, if the first change-over switch TK moving contact is directly connected to the coil for jumping position relay TWJ, disconnect the first normally closed switch
K1, and the movable end of the first change-over switch TK moving contact is connected to the first change-over switch TK the second stationary contact 2；If first
Change-over switch TK moving contact is connected to the coil for jumping position relay TWJ by the first normally closed switch K1, then opens the first conversion
The movable end for closing TK moving contact is connected to the first change-over switch TK the second stationary contact 2；
If it is not charged to jump position relay TWJ, it is problematic to illustrate to jump board inside the relay TWJ of position；If jump position relay
TWJ is powered, then the movable end of the first change-over switch TK moving contact is connected to the first change-over switch TK the 3rd stationary contact 3；
If it is not charged to jump position relay TWJ, illustrate that closing coil HQ is problematic；, will if it is powered to jump position relay TWJ
The movable end of first change-over switch TK moving contact is connected to the first change-over switch TK the 4th stationary contact 4；
If it is not charged to jump position relay TWJ, illustrate that normally closed auxiliary contact DL1 is problematic；If it is powered to jump position relay TWJ,
The movable end of first change-over switch TK moving contact is then connected to the first change-over switch TK the 5th stationary contact 5；
If it is not charged to jump position relay TWJ, illustrate that energy storage auxiliary contact S1 is problematic；If it is powered to jump position relay TWJ,
Illustrate that handcart work location aided rebroadcast contact S9 or handcart testing position auxiliary contact S8 is problematic.
When breaker is in open position and jumps position relay TWJ and conjunction position relay HWJ powered, by the second conversion
The moving contact for switching HK movable end is connected to the first stationary contact 6, disconnects the second normally closed switch, if conjunction position relay HWJ is powered,
Then it is problematic to close board inside the relay HWJ of position for explanation；If it is not charged to close position relay HWJ, illustrate that normally opened auxiliary contact DL2 has
Problem.
In embodiment provided herein, it should be understood that term " first ", " second " etc. are only used for describing mesh
, and it is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.
It is described above to be for only for ease of it will be understood by those skilled in the art that the technical solution of the utility model, not to
Limit the utility model.All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc.,
It should be included within the scope of protection of the utility model.
Claims (9)
1. a kind of control circuit of breaker, it is characterised in that including power supply, jump position relay, close position relay, first normally closed
Switch, the second normally closed switch, closing coil and switching winding, wherein,
The positive pole of the power supply, the coil, first normally closed switch, the closing coil for jumping position relay and the electricity
The negative pole in source is sequentially connected in series；The moving contact of first change-over switch is connected to the coil of the jump position relay away from the power supply
One end of positive pole, the first stationary contact of first change-over switch are idle contact, the second stationary contact of first change-over switch
The first tie point being connected between the negative pole and the closing coil of the power supply, the 3rd of first change-over switch the
Stationary contact is connected to the second tie point between first normally closed switch and the closing coil；
The positive pole of the power supply, the coil, second normally closed switch, the switching winding for closing position relay and the electricity
The negative pole in source is sequentially connected in series；The moving contact of second change-over switch is connected to the coil of the conjunction position relay away from the power supply
One end of positive pole, the first stationary contact of second change-over switch are idle contact, the second stationary contact of second change-over switch
The 3rd tie point being connected between the negative pole and the switching winding of the power supply, the 3rd of second change-over switch the
Stationary contact is connected to the 4th tie point between second normally closed switch and the switching winding.
2. the control circuit of breaker according to claim 1, it is characterised in that the control circuit also includes normally closed auxiliary
Adjuvant grafting point, the normally closed auxiliary contact are connected between first normally closed switch and second tie point；
4th stationary contact of first change-over switch is connected to positioned at first normally closed switch and the normally closed auxiliary contact
Between the 5th tie point.
3. the control circuit of breaker according to claim 2, it is characterised in that it is auxiliary that the control circuit also includes energy storage
Adjuvant grafting point, the energy storage auxiliary contact are connected between first normally closed switch and the 5th tie point；
5th stationary contact of first change-over switch is connected to positioned at first normally closed switch and the energy storage auxiliary contact
Between the 6th tie point.
4. the control circuit of breaker according to claim 3, it is characterised in that the control circuit also includes wheeler
Make location aided rebroadcast contact and handcart testing position auxiliary contact, the handcart work location aided rebroadcast contact and handcart experiment position
It is connected to after putting auxiliary contact parallel connection between first normally closed switch and the 6th tie point.
5. the control circuit of breaker according to claim 1, it is characterised in that the control circuit also includes normally opened auxiliary
Adjuvant grafting point, the normally opened auxiliary contact are connected between second normally closed switch and the 4th tie point.
6. the control circuit of breaker according to claim 1, it is characterised in that the moving contact of first change-over switch
The coil of the jump position relay is directly connected to, or the line of the jump position relay is connected to by first normally closed switch
Circle.
7. the control circuit of breaker according to claim 1, it is characterised in that the moving contact of second change-over switch
The coil of the conjunction position relay is directly connected to, or the line of the conjunction position relay is connected to by second normally closed switch
Circle.
8. the control circuit of breaker according to claim 1, it is characterised in that the control circuit also includes first and referred to
Show lamp, the positive pole of the power supply, the switch contacts for jumping position relay, the negative pole of the first indicator lamp and the power supply are gone here and there successively
Connection.
9. the control circuit of breaker according to claim 1, it is characterised in that the control circuit also includes second and referred to
Show lamp, the positive pole of the power supply, the switch contacts for closing position relay, the negative pole of the second indicator lamp and the power supply are gone here and there successively
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704604.3U CN207098597U (en) | 2017-06-16 | 2017-06-16 | The control circuit of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720704604.3U CN207098597U (en) | 2017-06-16 | 2017-06-16 | The control circuit of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207098597U true CN207098597U (en) | 2018-03-13 |
Family
ID=61552881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720704604.3U Active CN207098597U (en) | 2017-06-16 | 2017-06-16 | The control circuit of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207098597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149527A (en) * | 2017-06-16 | 2019-01-04 | 中国石油天然气股份有限公司 | The method of the control loop failure of the control circuit and detection breaker of breaker |
-
2017
- 2017-06-16 CN CN201720704604.3U patent/CN207098597U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149527A (en) * | 2017-06-16 | 2019-01-04 | 中国石油天然气股份有限公司 | The method of the control loop failure of the control circuit and detection breaker of breaker |
| CN109149527B (en) * | 2017-06-16 | 2024-01-30 | 中国石油天然气股份有限公司 | Circuit breaker control circuit and method for detecting faults of circuit breaker control loop |
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