CN205724893U - A kind of two mother cabinet electrical interlocks control systems of three inlet wires - Google Patents
A kind of two mother cabinet electrical interlocks control systems of three inlet wires Download PDFInfo
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- CN205724893U CN205724893U CN201620388362.7U CN201620388362U CN205724893U CN 205724893 U CN205724893 U CN 205724893U CN 201620388362 U CN201620388362 U CN 201620388362U CN 205724893 U CN205724893 U CN 205724893U
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Abstract
The utility model provides two mother cabinet electrical interlocks control systems of a kind of three incoming line cabinet, and it includes 1# incoming line cabinet, 2# incoming line cabinet, 3# incoming line cabinet, 4# mother cabinet, 5# mother cabinet；Five circuit breaker Q the 1st, Q2, Q3, Q4, Q5 in described 1# incoming line cabinet, 5# mother cabinet and 2# incoming line cabinet and 4# mother cabinet and 3# incoming line cabinet are extended contact realized electrical interlocks by auxiliary contact and the relays of five breakers, any one, two or three inlet wires are allowed to run, corresponding contact runs or stops, realize that full bus is charged, avoid two or three parallel operation of transformers in any case, it is ensured that the safety and stability of system power supply.Mesh of the present utility model is to provide a kind of a kind of electrical interlocks scheme preventing parallel operation of transformers, and by contact and extension relay, low cost of manufacture, three safe and reliable inlet wires two get in touch with control circuit.
Description
Technical field
The utility model belongs to technical field of electricity, particularly to a kind of electrical interlocks control system.
Background technology
In existing three electric power incoming line power supply-distribution systems, need a kind of electrical interlocks preventing parallel operation of transformers
Scheme.
Content of the invention
For solving the problems referred to above, the utility model provides the electrical interlocks control of a kind of three two mother cabinets of inlet wire
System processed, the technical scheme being used is:
A kind of two mother cabinet electrical interlocks control systems of three inlet wires, including three incoming line cabinets and two mother cabinets,
Described three incoming line cabinets are respectively 1# incoming line cabinet, 2# incoming line cabinet and 3# incoming line cabinet, and said two mother cabinet is respectively
For 4# mother cabinet and 5# mother cabinet, described 1# incoming line cabinet, 5# mother cabinet and 2# incoming line cabinet and 4# mother cabinet,
3# incoming line cabinet is in parallel.
Further, described three incoming line cabinets and two mother cabinets are respectively arranged with an auxiliary reclay for extending
Auxiliary contacts of circuit breaker, because its carried auxiliary contact quantity can not meet interlocking needs.
The utility model provides two mother cabinet electrical interlocks control systems of a kind of three incoming line cabinet, and it includes 1#
Incoming line cabinet, 2# incoming line cabinet, 3# incoming line cabinet, 4# mother cabinet, 5# mother cabinet；Described 1# incoming line cabinet, 5# mother
Five circuit breaker Q the 1st, Q2, Q3, Q4, Q5 in cabinet and 2# incoming line cabinet and 4# mother cabinet and 3# incoming line cabinet
Extended contact realize electrical interlocks by the auxiliary contact and relay of five breakers, it is allowed to any one,
Two or three lead-in circuit breakers operations, corresponding network interconnecting circuit runs or stops, it is achieved full bus is charged,
Avoid two or three parallel operation of transformers in any case, it is ensured that the safety and stability of system power supply.This
Bright mesh is to provide a kind of a kind of electrical interlocks scheme preventing parallel operation of transformers, auxiliary by breaker
Contact and auxiliary reclay is helped to realize that low cost, three safe and reliable inlet wires two get in touch with control circuit.
Brief description
Fig. 1 is circuit diagram of the present utility model
Fig. 2 is utility model works circuit diagram
Detailed description of the invention
Embodiment 1: single transformer ruuning situation
As shown in Figure 1 and Figure 2:
(1) when the Q1 switch Guan Bi of 1# transformer, in order to realize full bus belt point, should close Q5 and Q4
Interconnection switch, does not allow Q2 and Q3 to close a floodgate in order to avoid parallel operation of transformers.Q2 closing circuit interlocks
Q1/3 and Q5/9 normally-closed contact in parallel, when Q1 inlet wire and Q5 and Q4 interconnection switch close, auxiliary contact
Q1/3 disconnects, and auxiliary contact Q5/9 disconnects, it is achieved Q2 closing circuit locking can not be closed a floodgate.
Q3 closing circuit interlocking Q1/5 and Q4/9 and Q5-KA5 normally-closed contact in parallel, as Q1 inlet wire and Q5 and
Q4 interconnection switch closes, and auxiliary contact Q1/5 disconnects, and auxiliary contact Q4/9 disconnects, and extends contact Q5-KA5
Disconnect, it is achieved Q3 closing circuit locking can not be closed a floodgate.
(2) run Q2 switch Guan Bi when becoming 2# transformer, in order to realize full bus belt point, should close Q5 and
Q4 gets in touch with cabinet, does not allow Q1 and Q3 to close a floodgate in order to avoid parallel operation of transformers.
Q1 closing circuit interlocking Q2/3 and Q5/3 normally-closed contact in parallel, when Q2 inlet wire and Q5 and Q4 get in touch with
Switch Guan Bi, auxiliary contact Q2/3 disconnects, and auxiliary contact Q5/3 disconnects, it is achieved Q2 closing circuit locking is not
Can close a floodgate.
Q3 closing circuit interlocking Q2/7 and Q4/7 normally-closed contact in parallel, when Q2 inlet wire and Q5 and Q4 get in touch with
Switch Guan Bi, auxiliary contact Q2/7 disconnects, and auxiliary contact Q4/7 disconnects, it is achieved Q3 closing circuit locking is not
Can close a floodgate.
(3) when 3# transformer runs Q3 switch Guan Bi, in order to realize full bus belt point, should close Q5 and Q4
Contact cabinet, does not allow Q1 and Q2 to close a floodgate in order to avoid parallel operation of transformers.
Q1 closing circuit interlocking Q3/3 and Q4/3 and Q5/5 normally-closed contact in parallel, as Q3 inlet wire and Q5 and
Q4 interconnection switch closes, and auxiliary contact Q3/3 disconnects, and auxiliary contact Q4/5 disconnects, auxiliary contact Q5/5
Disconnect, it is achieved Q1 closing circuit locking can not be closed a floodgate.
Q2 closing circuit interlocking Q3/7 and Q4/5 normally-closed contact in parallel, when Q3 inlet wire and Q5 and Q4 get in touch with
Switch Guan Bi, auxiliary contact Q3/7 disconnects, and auxiliary contact Q4/5 disconnects, it is achieved Q2 closing circuit locking is not
Can close a floodgate.
2: two Transformer Operation Status of embodiment
As shown in Figure 1 and Figure 2:
(1) when 1#, 2# transformer runs, Q1 and Q2 switchs Guan Bi, in order to realize full bus belt point, Ying He
Upper Q4 gets in touch with cabinet, does not allow Q5 and Q3 to close a floodgate in order to avoid parallel operation of transformers.
Q3 closing circuit interlocking Q2/7 and Q4/7 normally-closed contact in parallel, when Q1 and Q2 inlet wire and Q4 get in touch with
Switch Guan Bi, auxiliary contact Q2/7 disconnects, and auxiliary contact Q4/7 disconnects, it is achieved Q3 closing circuit locking is not
Can close a floodgate.
Q5 closing circuit interlocks Q1-KA1 and Q2-KA2, when Q1 and Q2 inlet wire and Q4 interconnection switch close
Closing, extension contact Q1-KA1 disconnects, and extension contact Q2-KA2 disconnects, it is achieved Q5 closing circuit locking is not
Can close a floodgate.
(2) when 1#, 3# transformer runs, Q1 and Q3 switchs Guan Bi, in order to realize full bus belt point, Ying He
Upper Q4 or Q5 interconnection switch, in order to avoid parallel operation of transformers, when Q4 interconnection switch closes a floodgate, no
Q2 and Q5 switch is allowed to close a floodgate；When Q5 interconnection switch closes a floodgate, Q2 and Q4 switch is not allowed to close a floodgate.
When Q1 and Q3 switch closes a floodgate, Q4 interconnection switch closes a floodgate, and Q2 closing circuit interlocks Q3/7 and Q4/5
Normally-closed contact in parallel, when Q1, Q3 inlet wire and Q4 interconnection switch close a floodgate, auxiliary contact Q3/7 disconnects, auxiliary
Contact Q4/5 is helped to disconnect, it is achieved Q2 closing circuit locking can not be closed a floodgate.
When Q1 and Q3 switch closes a floodgate, Q4 interconnection switch closes a floodgate, and Q5 closing circuit interlocks Q1-KA1, Q3-KA3
And Q4-KA4, when Q1 and Q3 inlet wire and Q4 interconnection switch close, extension contact Q1-KA1 disconnects, and expands
Exhibition contact Q3-KA3 disconnects, and extension contact Q4-KA4 disconnects, it is achieved Q5 closing circuit locking can not be closed a floodgate.
When Q1 and Q3 switch closes a floodgate, Q5 interconnection switch closes a floodgate, and Q2 closing circuit interlocks Q1/3 and Q5/9
Normally-closed contact in parallel, when Q1, Q3 inlet wire and Q5 interconnection switch close, auxiliary contact Q1/3 disconnects, auxiliary
Contact Q5/9 is helped to disconnect, it is achieved Q2 closing circuit locking can not be closed a floodgate.
When Q1 and Q3 switch closes a floodgate, Q5 interconnection switch closes a floodgate, and Q4 closing circuit interlocks Q1/9, Q3-KA3
The normally-closed contact in parallel with Q5-KA5, when Q1, Q3 inlet wire and Q5 interconnection switch close, auxiliary contact Q1/9
Disconnecting, extension contact Q3-KA3 disconnects, and extension contact Q5-KA5 disconnects, it is achieved Q4 closing circuit locking
Can not close a floodgate.
(3) when 2#, 3# transformer runs, Q2 and Q3 switchs Guan Bi, in order to realize full bus belt point, Ying He
Upper Q5 interconnection switch, in order to avoid parallel operation of transformers, does not allow Q1 and Q4 switch to close a floodgate.
Q1 closing circuit interlocking Q2/3 and Q5/3 normally-closed contact in parallel, when Q2, Q3 inlet wire and Q5 get in touch with
Switch closes a floodgate, and auxiliary contact Q2/3 disconnects, and auxiliary contact Q5/3 disconnects, it is achieved Q2 closing circuit locking is not
Can close a floodgate.
Q4 closing circuit interlocking Q2-KA2 and Q3/9 normally-closed contact in parallel, when Q2, Q3 inlet wire and Q5 join
Network switch closes a floodgate, and extension contact Q2-KA2 disconnects, and auxiliary contact Q3/9 disconnects, it is achieved Q4 closing circuit
Locking can not be closed a floodgate.
3: three Transformer Operation Status of embodiment
As shown in Figure 1 and Figure 2:
As 3 transformers 1#, 2#, 3#, become and run Q1, Q2 and Q3 switch Guan Bi, in order to avoid transformation
Device paired running does not allow Q4 and Q5 to close a floodgate.
Q4 closing circuit interlocking Q2-KA2 and Q3/9 normally-closed contact in parallel, when Q1 and Q2 and Q3 inlet wire
Switch Guan Bi, auxiliary contact Q2-KA2, auxiliary contact Q3/9 disconnect, it is achieved Q4 closing circuit locking is not
Can close a floodgate.
Q5 closing circuit interlocks Q1-KA1 and Q2-KA2, when Q1 and Q2 and Q3 service entrance switch close,
Extension contact Q1-KA1 disconnects, and extension contact Q2-KA2 disconnects, it is achieved Q5 closing circuit locking can not be closed
Lock.
Claims (2)
1. two mother cabinet electrical interlocks control systems of an inlet wire, including three incoming line cabinets and two mother cabinets, described three incoming line cabinets are respectively 1# incoming line cabinet, 2# incoming line cabinet and 3# incoming line cabinet, said two mother cabinet is respectively 4# mother cabinet and 5# mother cabinet, described 1# incoming line cabinet, 5# mother cabinet and 2# incoming line cabinet and 4# mother cabinet, 3# incoming line cabinet is in parallel, described 1# incoming line cabinet, five circuit breaker Q 1 in 5# mother cabinet and 2# incoming line cabinet and 4# mother cabinet and 3# incoming line cabinet, Q2, Q3, Q4, Q5 is extended contact realized electrical interlocks by auxiliary contact and the relay of five breakers, allow any one, two or three lead-in circuit breakers operations.
2. electrical interlocks control system according to claim 1, it is characterised in that be respectively arranged with an auxiliary reclay in described three incoming line cabinets and two mother cabinets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620388362.7U CN205724893U (en) | 2016-04-29 | 2016-04-29 | A kind of two mother cabinet electrical interlocks control systems of three inlet wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620388362.7U CN205724893U (en) | 2016-04-29 | 2016-04-29 | A kind of two mother cabinet electrical interlocks control systems of three inlet wires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205724893U true CN205724893U (en) | 2016-11-23 |
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ID=57332391
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620388362.7U Active CN205724893U (en) | 2016-04-29 | 2016-04-29 | A kind of two mother cabinet electrical interlocks control systems of three inlet wires |
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| CN (1) | CN205724893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612031A (en) * | 2017-09-30 | 2018-01-19 | 安徽海螺建材设计研究院 | Cogeneration grid-connected system |
| CN111983370A (en) * | 2020-08-31 | 2020-11-24 | 国网河南省电力公司濮阳供电公司 | Calibrator for calibrating backup power automatic switching protection device |
-
2016
- 2016-04-29 CN CN201620388362.7U patent/CN205724893U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612031A (en) * | 2017-09-30 | 2018-01-19 | 安徽海螺建材设计研究院 | Cogeneration grid-connected system |
| CN107612031B (en) * | 2017-09-30 | 2024-01-23 | 安徽海螺建材设计研究院 | Waste heat power generation grid-connected system |
| CN111983370A (en) * | 2020-08-31 | 2020-11-24 | 国网河南省电力公司濮阳供电公司 | Calibrator for calibrating backup power automatic switching protection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |