CN206564426U - A kind of control loop of the secondary debugging of drawer of low-voltage switch cabinet test function - Google Patents
A kind of control loop of the secondary debugging of drawer of low-voltage switch cabinet test function Download PDFInfo
- Publication number
- CN206564426U CN206564426U CN201720211779.0U CN201720211779U CN206564426U CN 206564426 U CN206564426 U CN 206564426U CN 201720211779 U CN201720211779 U CN 201720211779U CN 206564426 U CN206564426 U CN 206564426U
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- China
- Prior art keywords
- drawer
- breaker
- control loop
- test function
- low
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of control loop of the secondary debugging of drawer of low-voltage switch cabinet test function, the control loop includes fuse, drawer positions microswitch auxiliary contact and the circuit-breaker status point being sequentially connected in series.During so that only breaker disconnecting, when drawer is in testing position, secondary debugging can be carried out.
Description
Technical field
The utility model is related to the secondary debugging of drawer of low-voltage switch cabinet test function.
Background technology
At present, drawer travel is generally concatenated in control circuit in the secondary principle that low-voltage drawer cabinet drawer is tested
Switch, it is ensured that in drawer in testing position, major loop is disconnected, secondary circuit is connected, so as to ensure to carry out two in testing position
Secondary debugging, but the cut-off point of major loop is not obvious in testing position in the manufacturing process of drawout cubicle for reality, easily occurs accident.
As shown in figure 1, QF represent breaker, KM represent contactor, KH represent electrothermal relay, L1, L2, L3 represent breaker end of incoming cables A,
B, C phase power supply, L11 represent that breaker outgoing line end A phases power supply, FU1 represent that fuse, FU2 represent that fuse, S1, S2 represent to take out
Drawer position microswitch auxiliary contact, N represents zero line, and PE represents ground wire.
The content of the invention
The purpose of this utility model is to provide a kind of control loop of the secondary debugging of drawer of low-voltage switch cabinet test function,
During so that only breaker disconnecting, when drawer is in testing position, secondary debugging can be carried out.
Realizing the technical scheme of above-mentioned purpose is：
In a kind of control loop of the secondary debugging of drawer of low-voltage switch cabinet test function, the control loop includes going here and there successively
Fuse, drawer positions microswitch auxiliary contact and the circuit-breaker status point of connection.
In the control loop of the above-mentioned secondary debugging of drawer of low-voltage switch cabinet test function, when drawer is in testing position
When, control power supply is derived from the upper pile crown of breaker, and breaker is in gate-dividing state；When drawer is in operating position, power supply is controlled
The lower pile crown of breaker is derived from, breaker is in closing position.
The beneficial effects of the utility model are：The utility model series trip device state point in control loop, it is ensured that peace
Complete carries out secondary debugging in testing position.
Brief description of the drawings
Fig. 1 is the control drawing of the existing secondary debugging of drawer test function；
Fig. 2 is the control drawing of the secondary debugging of drawer test function of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 2, in the control loop of the secondary debugging of drawer of low-voltage switch cabinet test function of the present utility model, control
Loop includes fuse FU1 (or FU2), drawer positions microswitch auxiliary contact S1 (or S2) and the breaker shape being sequentially connected in series
State point QF1 (or QF2).
When drawer is in testing position, control power supply is derived from the upper pile crown of breaker, and breaker is in gate-dividing state, led back
Road outlet is not charged, and secondary circuit is powered, so as to carry out secondary debugging.
When drawer is in operating position, control power supply is derived from the lower pile crown of breaker, and breaker is in closing position, secondary
Loop is powered, can be with bringing onto load transmission operation.
Above example is only for illustration of the utility model, rather than to limitation of the present utility model, relevant technical field
Technical staff, in the case where not departing from spirit and scope of the present utility model, various conversion or modification can also be made, because
This all equivalent technical scheme should also belong to category of the present utility model, should be limited by each claim.
Claims (2)
1. a kind of control loop of the secondary debugging of drawer of low-voltage switch cabinet test function, it is characterised in that the control loop bag
Include the fuse being sequentially connected in series, drawer positions microswitch auxiliary contact and circuit-breaker status point.
2. the control loop of the secondary debugging of drawer of low-voltage switch cabinet test function according to claim 1, it is characterised in that
When drawer is in testing position, control power supply is derived from the upper pile crown of breaker, and breaker is in gate-dividing state；When drawer is in work
During position, control power supply is derived from the lower pile crown of breaker, and breaker is in closing position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211779.0U CN206564426U (en) | 2017-03-06 | 2017-03-06 | A kind of control loop of the secondary debugging of drawer of low-voltage switch cabinet test function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211779.0U CN206564426U (en) | 2017-03-06 | 2017-03-06 | A kind of control loop of the secondary debugging of drawer of low-voltage switch cabinet test function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206564426U true CN206564426U (en) | 2017-10-17 |
Family
ID=60030876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720211779.0U Expired - Fee Related CN206564426U (en) | 2017-03-06 | 2017-03-06 | A kind of control loop of the secondary debugging of drawer of low-voltage switch cabinet test function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206564426U (en) |
-
2017
- 2017-03-06 CN CN201720211779.0U patent/CN206564426U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171017 Termination date: 20210306 |