CN203491525U - Improved low-voltage bus coupler cabinet wiring device - Google Patents
Improved low-voltage bus coupler cabinet wiring device Download PDFInfo
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- CN203491525U CN203491525U CN201320651607.7U CN201320651607U CN203491525U CN 203491525 U CN203491525 U CN 203491525U CN 201320651607 U CN201320651607 U CN 201320651607U CN 203491525 U CN203491525 U CN 203491525U
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- auxiliary relay
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- incoming line
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- 239000000463 material Substances 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses an improved low-voltage bus coupler cabinet wiring device. The device comprises an I-segment incoming line cabinet, an II-segment incoming line cabinet, and a bus coupler cabinet. The I-segment incoming line cabinet, the II-segment incoming line cabinet and the bus coupler cabinet are respectively provided with an I-segment incoming line switch, the II-segment incoming line switch and the bus coupler switch. The I-segment incoming line switch, the bus coupler switch and the II-segment incoming line switch are successively connected. The bus coupler cabinet is internally provided with a first intermediate relay, a second intermediate relay and a changeover switch. The I-segment incoming line switch, the changeover switch, the normally open contact of the first intermediate relay, and the normally closed contact of the second intermediate relay are successively connected. The normally closed contact of the second intermediate relay is connected with a control loop inside the bus coupler cabinet. One end of the first intermediate relay is connected with the I-segment incoming line switch, and the other end of the first intermediate relay is separately connected with the normally open contact of the first intermediate relay and the normally closed contact of the second intermediate relay. The device cancels connecting wires between the incoming line cabinets and the bus coupler cabinet, so that manpower and material resources are saved, and power supply reliability is improved.
Description
Technical field
The utility model relates to power distribution control system, particularly a kind of modified model low pressure mother cabinet termination.
Background technology
Low pressure bus connection switch generally adopts in the incoming line switch cabinet of I, II section and draws a pair of auxiliary relay normally closed contact and the normally closed auxiliary contact of a pair of circuit breaker, adopts and is wired to mother cabinet as interlocked control mode.The break-make of auxiliary relay normally closed contact is used for controlling having or not of power supply, the break-make of circuit breaker normally closed contact is used for controlling the opening and closing state of service entrance switch, therefore the complete producer of switch cubicle just must connect one end in advance by interlocking line, the other end is reserved in this cabinet, after switch cubicle is in place, then row connects.There is so following defect:
1: the layout distance of equipment fails to determine, so reserved connecting line is sometimes long, sometimes too short, needs distribution separately, causes waste;
2: sometimes in service at equipment, connecting line is stolen, or in installation process, injure the insulating barrier that connects wire and cause short trouble;
3: must carry out wire connection by the complete sets of equipment producer scene of sending someone, relate to manpower, the increase of financial resources;
4: the power distribution room having is without cable trough, must wire adopt pvc pipe sheath and fixed etc.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of simple in structure, safe and reliable, cost
Low modified model low pressure mother cabinet termination.
The technical scheme that the utility model addresses the above problem is: a kind of modified model low pressure mother cabinet termination, comprises I section incoming line cabinet, II section incoming line cabinet and mother cabinet, I section incoming line cabinet, in II section incoming line cabinet and mother cabinet, be respectively equipped with I section service entrance switch, II section service entrance switch and bus connection switch, I section service entrance switch, bus connection switch, II section service entrance switch connects successively, is provided with the first auxiliary relay in mother cabinet, the second auxiliary relay and change over switch, I section service entrance switch, change over switch, the normally opened contact of the first auxiliary relay, the normally-closed contact of the second auxiliary relay is connected successively, and the normally-closed contact of the second auxiliary relay is connected with the control loop in mother cabinet, and one end of the first auxiliary relay is connected with I section service entrance switch, the other end respectively with the normally opened contact of the first auxiliary relay, the normally-closed contact of the second auxiliary relay is connected, II section service entrance switch, change over switch, the normally opened contact of the second auxiliary relay, the normally-closed contact of the first auxiliary relay is connected successively, and the normally-closed contact of the first auxiliary relay is connected with the control loop of mother cabinet, and one end of the second auxiliary relay is connected with II section service entrance switch, the other end respectively with the normally opened contact of the second auxiliary relay, the normally-closed contact of the first auxiliary relay is connected.
In described I section incoming line cabinet, be provided with the 3rd auxiliary relay and the 4th auxiliary relay, in I section incoming line cabinet, I section service entrance switch, the normally-closed contact of the 3rd auxiliary relay, the 4th auxiliary relay, the normally-closed contact of the 4th auxiliary relay, the 3rd auxiliary relay connect successively, and the 3rd auxiliary relay is connected with the control loop in I section incoming line cabinet.
In described II section incoming line cabinet, be provided with the 5th auxiliary relay and the 6th auxiliary relay, in II section incoming line cabinet, II section service entrance switch, the normally-closed contact of the 5th auxiliary relay, the 6th auxiliary relay, the normally-closed contact of the 6th auxiliary relay, the 5th auxiliary relay connect successively, and the 5th auxiliary relay is connected with the control loop in II section incoming line cabinet.
Between described the first auxiliary relay and the normally-closed contact of the second auxiliary relay, be provided with I section power supply indicator light.
Between described the second auxiliary relay and the normally-closed contact of the first auxiliary relay, be provided with II section power supply indicator light.
The beneficial effects of the utility model are: the utility model has been cancelled the wire that is connected between incoming line cabinet and mother cabinet, have realized the function of key interlocking and electrical interlocks, have saved human and material resources, operate more conveniently, and have improved power supply reliability.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, the utility model comprises I section incoming line cabinet, II section incoming line cabinet and mother cabinet, I section incoming line cabinet, in II section incoming line cabinet and mother cabinet, be respectively equipped with I section service entrance switch 1QF, II section service entrance switch 2QF and bus connection switch 3QF, I section service entrance switch 1QF, bus connection switch 3QF, II section service entrance switch 2QF connects successively, is provided with the first auxiliary relay 3KA1 in mother cabinet, the second auxiliary relay 3KA2 and change over switch SA, I section service entrance switch 1QF, change over switch SA, the normally opened contact of the first auxiliary relay 3KA1, the normally-closed contact of the second auxiliary relay 3KA2 is connected successively, the normally-closed contact of the second auxiliary relay 3KA2 is connected with the control loop in mother cabinet, one end of the first auxiliary relay 3KA1 is connected with I section service entrance switch 1QF, the other end respectively with the normally opened contact of the first auxiliary relay 3KA1, the normally-closed contact of the second auxiliary relay 3KA2 is connected, II section service entrance switch 2QF, change over switch SA, the normally opened contact of the second auxiliary relay 3KA2, the normally-closed contact of the first auxiliary relay 3KA1 is connected successively, the normally-closed contact of the first auxiliary relay 3KA1 is connected with the control loop of mother cabinet, one end of the second auxiliary relay 3KA2 is connected with II section service entrance switch 2QF, the other end respectively with the normally opened contact of the second auxiliary relay 3KA2, the normally-closed contact of the first auxiliary relay 3KA1 is connected,
Between described the first auxiliary relay 3KA1 and the normally-closed contact of the second auxiliary relay 3KA2, be provided with I section power supply indicator light HG1; Between described the second auxiliary relay 3KA2 and the normally-closed contact of the first auxiliary relay 3KA1, be provided with II section power supply indicator light HG2;
In described I section incoming line cabinet, be provided with the 3rd auxiliary relay 1KA1 and the 4th auxiliary relay 1KA2, the normally-closed contact of I section service entrance switch 1QF, the 3rd auxiliary relay 1KA1 in I section incoming line cabinet is, the normally-closed contact of the 4th auxiliary relay 1KA2, the 4th auxiliary relay 1KA2, the 3rd auxiliary relay 1KA1 connect successively, and the 3rd auxiliary relay 1KA1 is connected with the control loop in I section incoming line cabinet; In described II section incoming line cabinet, be provided with the 5th auxiliary relay 2KA1 and the 6th auxiliary relay 2KA2, the normally-closed contact of II section service entrance switch 2QF, the 5th auxiliary relay 2KA1 in II section incoming line cabinet is, the normally-closed contact of the 6th auxiliary relay 2KA2, the 6th auxiliary relay 2KA2, the 5th auxiliary relay 2KA1 connect successively, and the 5th auxiliary relay 2KA1 is connected with the control loop in II section incoming line cabinet.
The utility model can be realized the function of key interlocking and electrical interlocks:
1: key interlocking:
Two service entrance switchs and bus connection switch configuration three lock two keys, as mechanical interlocking, do not have key to insert rotation, and circuit breaker can not close a floodgate, once after closing a floodgate, key can not be got out, guarantees at any time to only have two switch connections;
2: electrical interlocks:
After I section service entrance switch 1QF closes a floodgate, mother cashier's office in a shop 3KA1 coil is subject to electricity, and normally opened contact closure and normally-closed contact disconnect;
After II section service entrance switch 2QF closes a floodgate, mother cashier's office in a shop 3KA2 coil is subject to electricity, and normally opened contact closure and normally-closed contact disconnect.
Mother cashier's office in a shop relay 3KA1 normally opened contact and 3KA2 normally-closed contact is connected in I section change over switch loop, 3KA1 normally-closed contact and 3KA2 normally opened contact are connected in II section change over switch loop, thereby realized the function of electrical interlocks, while having guaranteed that bus connection switch 3QF only has a road to have electricity, just can close a floodgate, when there is electricity on two tunnels, can not close a floodgate.
After bus connection switch 3QF closes a floodgate, have a power failure or the service entrance switch lower end of maintenance all charged, relay 1KA2 on incoming line cabinet or 2 KA2 coils are obtained electric, cut off service entrance switch combined floodgate control loop, while guaranteeing that bus connection switch 3QF is non-shut-brake, service entrance switch can not close a floodgate.
Operation principle is as follows:
1: fanout operation operation: mother change over switch SA is cashier's office in a shop beaten and to centre, stops (apportion) position, at I, II section service entrance switch, insert respectively key, then press respectively each section of service entrance switch button combined floodgate cashier's office in a shop, now interconnection switch does not close;
2: standby operation each other: have a power failure or during equipment component maintenance when arbitrary section, need again to guarantee in the situation of important load power supply, just adopt bus connection switch liaison method: the key on the service entrance switch of a section having a power failure is taken out and inserted in bus connection switch lock core, rotate and connect control loop, mother change over switch is cashier's office in a shop beaten to the side not having a power failure to simultaneously, connect bus connection switch control loop, now on cabinet, also show the section power supply indicator light that do not have a power failure, which section power supply allows people understand is at a glance by, press the button and can carry out breaking-closing operating to bus connection switch;
3: recover fanout operation operation: by bus connection switch separating brake, and change over switch is beaten to intermediate stop position, again the key on bus connection switch is taken out in the lock core that inserts power failure service entrance switch and rotated, connect control loop, can to two sections of service entrance switchs, carry out breaking-closing operating respectively.
Claims (5)
1. a modified model low pressure mother cabinet termination, comprises I section incoming line cabinet, II section incoming line cabinet and mother cabinet, I section incoming line cabinet, in II section incoming line cabinet and mother cabinet, be respectively equipped with I section service entrance switch, II section service entrance switch and bus connection switch, I section service entrance switch, bus connection switch, II section service entrance switch connects successively, it is characterized in that: in mother cabinet, be provided with the first auxiliary relay, the second auxiliary relay and change over switch, I section service entrance switch, change over switch, the normally opened contact of the first auxiliary relay, the normally-closed contact of the second auxiliary relay is connected successively, and the normally-closed contact of the second auxiliary relay is connected with the control loop in mother cabinet, and one end of the first auxiliary relay is connected with I section service entrance switch, the other end respectively with the normally opened contact of the first auxiliary relay, the normally-closed contact of the second auxiliary relay is connected, II section service entrance switch, change over switch, the normally opened contact of the second auxiliary relay, the normally-closed contact of the first auxiliary relay is connected successively, and the normally-closed contact of the first auxiliary relay is connected with the control loop of mother cabinet, and one end of the second auxiliary relay is connected with II section service entrance switch, the other end respectively with the normally opened contact of the second auxiliary relay, the normally-closed contact of the first auxiliary relay is connected.
2. modified model low pressure mother cabinet termination as claimed in claim 1, it is characterized in that: in described I section incoming line cabinet, be provided with the 3rd auxiliary relay and the 4th auxiliary relay, in I section incoming line cabinet, I section service entrance switch, the normally-closed contact of the 3rd auxiliary relay, the 4th auxiliary relay, the normally-closed contact of the 4th auxiliary relay, the 3rd auxiliary relay connect successively, and the 3rd auxiliary relay is connected with the control loop in I section incoming line cabinet.
3. modified model low pressure mother cabinet termination as claimed in claim 1, it is characterized in that: in described II section incoming line cabinet, be provided with the 5th auxiliary relay and the 6th auxiliary relay, in II section incoming line cabinet, II section service entrance switch, the normally-closed contact of the 5th auxiliary relay, the 6th auxiliary relay, the normally-closed contact of the 6th auxiliary relay, the 5th auxiliary relay connect successively, and the 5th auxiliary relay is connected with the control loop in II section incoming line cabinet.
4. modified model low pressure mother cabinet termination as claimed in claim 1, is characterized in that: between described the first auxiliary relay and the normally-closed contact of the second auxiliary relay, be provided with I section power supply indicator light.
5. modified model low pressure mother cabinet termination as claimed in claim 1, is characterized in that: between described the second auxiliary relay and the normally-closed contact of the first auxiliary relay, be provided with II section power supply indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651607.7U CN203491525U (en) | 2013-10-22 | 2013-10-22 | Improved low-voltage bus coupler cabinet wiring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651607.7U CN203491525U (en) | 2013-10-22 | 2013-10-22 | Improved low-voltage bus coupler cabinet wiring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491525U true CN203491525U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320651607.7U Expired - Lifetime CN203491525U (en) | 2013-10-22 | 2013-10-22 | Improved low-voltage bus coupler cabinet wiring device |
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| CN (1) | CN203491525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490254A (en) * | 2014-09-19 | 2016-04-13 | 无锡阿比利德电力科技有限公司 | Contact cabinet for low-voltage system with two sections of inlet wires |
-
2013
- 2013-10-22 CN CN201320651607.7U patent/CN203491525U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490254A (en) * | 2014-09-19 | 2016-04-13 | 无锡阿比利德电力科技有限公司 | Contact cabinet for low-voltage system with two sections of inlet wires |
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Granted publication date: 20140319 |
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| CX01 | Expiry of patent term |