CN204732967U - A kind of remote electric substation low-voltage dual power contact control device for power distribution cabinet - Google Patents
A kind of remote electric substation low-voltage dual power contact control device for power distribution cabinet Download PDFInfo
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- CN204732967U CN204732967U CN201520426292.5U CN201520426292U CN204732967U CN 204732967 U CN204732967 U CN 204732967U CN 201520426292 U CN201520426292 U CN 201520426292U CN 204732967 U CN204732967 U CN 204732967U
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Abstract
The utility model provides a kind of remote electric substation low-voltage dual power contact control device for power distribution cabinet, comprises controller, controller and controller current supply circuit, power state detection circuit, gets in touch with power distribution cabinet control circuit and is connected.The utility model according to two power conditions, starts network interconnecting circuit barring program by controller, controls network interconnecting circuit, achieves the remote electric substation duplicate supply contact cabinet breaker electric blocking without control cables; Do not need to transform original electric power system, again lay control cables, save manpower, financial resources, facilitate existing electric substation, residential quarter distribution system reducing energy consumption, be conducive to energy-saving and emission-reduction.
Description
The utility model relates to the Low Voltage Electrical Apparatus in distribution system, especially a kind of remote electric substation low-voltage dual power contact control device for power distribution cabinet.
Background technology
Duplicate supply contact power distribution cabinet is the visual plant of electric power system power distribution, its control device intelligent level height, directly have influence on the reliability of duplicate supply contact power distribution cabinet, particularly be widely used in the perfect of the remote duplicate supply contact control device for power distribution cabinet intelligent level in the places such as factory, residential quarter, communal facility, improve power supply reliability, also significant for social stability harmony.
At present, the shortcoming that existing low-voltage dual power contact control device for power distribution cabinet exists is: 1, the control device of most of low-voltage dual power contact power distribution cabinet or manual, by manual operation; 2, indivedual Control that adopts realizes automatic switching, can not Intelligent Measurement power supply and working state of circuit breaker, and reliability is low.3, particularly newly-built residential communities occupancy rate is low, in order to avoid transformer low load with strong power, reduce the wastage electrical energy saving, needs two remote electric substations or box type transformation station deactivation one, carry out contact power supply by low-voltage cable, existing duplicate supply contact cabinet cannot realize isolation and locking.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of remote electric substation low-voltage dual power contact control device for power distribution cabinet without control cables locking, solves above-mentioned problems of the prior art in order to control contact power distribution cabinet.
The utility model is by the following technical solutions:
A kind of remote electric substation low-voltage dual power contact control device for power distribution cabinet, described control device comprises controller, controller and controller current supply circuit, power state detection circuit, gets in touch with power distribution cabinet control circuit and is connected.
Described controller current supply circuit comprises connection control device and controls the switching relay of power supply, described control power supply comprises the link cable power supply of transformation station power supply and another remote electric substation, and the coil crossover of switching relay is on the major loop of link cable power supply.
Described power supply status observation circuit comprises near-end power state detection circuit and link cable power state detection circuit, described near-end power state detection circuit comprises the first relay normally open contact in parallel, second relay normally open contact, 3rd relay normally open contact, first relay coil, second relay coil, 3rd relay coil is respectively by the first fuse, second fuse, 3rd fuse is connected on and enters on the upper end voltage circuit of network interconnecting circuit, described link cable power state detection circuit comprises the 4th relay normally open contact in parallel, 5th relay normally open contact, 6th relay normally open contact, 4th relay coil, 5th relay coil, 6th relay coil is respectively by the 4th fuse, 5th fuse, 6th fuse is connected on the link cable supply voltage loop of the lower end voltage circuit entering network interconnecting circuit.
Described contact power distribution cabinet control circuit comprises the under-voltage coil of contact device, network interconnecting circuit energy storage motor, network interconnecting circuit closing coil, network interconnecting circuit switching winding, contact device is under-voltage, and coil one end controls power supply II, other end connection control power supply I and controller, network interconnecting circuit energy storage motor one end is connected with control power supply II, the other end is connected with controller by energy storage button, network interconnecting circuit closing coil one end is connected with control power supply II, the other end is connected with controller by switch knob, network interconnecting circuit switching winding one end connection control power supply II, the other end is connected with controller by opening button.
Described controller adopts programmable logic controller (PLC).
The beneficial effects of the utility model:
1, by controller according to No. 1 power supply, No. 2 cable power situations, start network interconnecting circuit barring program, control network interconnecting circuit, achieve the remote electric substation duplicate supply contact cabinet breaker electric blocking without control cables;
2, intelligence degree is high, adapts to the multiple power sources such as remote electric substation, box-type substation;
3, do not need to transform original electric power system, again lay control cables, save manpower, financial resources, facilitate existing electric substation, residential quarter distribution system reducing energy consumption, be conducive to energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is control principle drawing of the present utility model.
Fig. 3 is primary system figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing 1 ~ 3 and embodiment, the utility model is described in further detail.
As shown in Fig. 1 ~ 3, the utility model provides a kind of remote electric substation low-voltage dual power contact control device for power distribution cabinet, and described control device is connected with network interconnecting circuit 2QF.Control device comprises controller U1, controller U1 and controller current supply circuit, power state detection circuit, gets in touch with power distribution cabinet control circuit and is connected, and controller U1 adopts programmable logic controller.
Controller current supply circuit comprises connection control device U1 and controls the switching relay CK of power supply, described control power supply comprises the link cable power supply (i.e. No. 2 cable power) connecting transformation station power supply (i.e. No. 1 power supply) and another remote electric substation, and the coil crossover of switching relay CK is on the major loop of link cable power supply.The L port of controller is connected to No. 1 power supply and No. 2 cable power by switching relay first normally open contact CK-1, and the N port of controller is connected to the N row of No. 1 power supply and No. 2 cable power by switching relay CK second normally open contact CK-2; Switching relay CK coil crossover is on the major loop of No. 2 cable power.When No. 1 power supply or No. 2 any roads of cable power have electricity, power supply can be provided to controller, ensure that controller normally works.
Power supply status observation circuit comprises No. 1 power state detection circuit and No. 2 cable power state detection circuits, and No. 1 power state detection circuit comprises the first relay normally open contact 1YJ-1 in parallel, second relay normally open contact 2YJ-1, 3rd relay normally open contact 3YJ-1, the first relay coil 1YJ, second relay coil 2YJ, 3rd relay coil 3YJ is respectively by the first fuse 1FU, second fuse 2FU, 3rd fuse 3FU is connected on the L11 of the upper end voltage circuit entering network interconnecting circuit respectively, L12, on the upper and N row of L13, No. 2 cable power state detection circuits comprise the 4th relay normally open contact 4YJ-1 in parallel, 5th relay normally open contact 5YJ-1, 6th relay normally open contact 6YJ-1, the 4th relay coil 4YJ, 5th relay coil 5YJ, 6th relay coil 6YJ is respectively by the 4th fuse 4FU, 5th fuse 5FU, 6th fuse 6FU is connected on the L21 of the lower end voltage circuit entering network interconnecting circuit, L22, on L23 cable power voltage circuit.
Contact power distribution cabinet control circuit comprises the under-voltage coil 2QFQ of contact device, network interconnecting circuit energy storage motor 2QFD, network interconnecting circuit closing coil 2QFX, network interconnecting circuit switching winding 2QFF, contact device is under-voltage, and coil 2QFQ one end controls power supply II 2, the C0 of other end connection control power supply I 1 and controller U1, C1, C2 port, network interconnecting circuit energy storage motor 2QFD one end is connected with control power supply II 2, the other end is connected with the Y0 port of controller U1 by energy storage button 1SB, network interconnecting circuit closing coil 2QFX one end is connected with control power supply II 2, the other end is connected with the Y1 port of controller U1 by switch knob 2SB, network interconnecting circuit switching winding 2QFF one end connection control power supply II 2, the other end is connected with control power supply I 1 by opening button 3SB.
Operation principle of the present utility model and process as follows: when remote electric substation duplicate supply contact control device for power distribution cabinet is devoted oneself to work, controller U1 is by power state detection electric circuit inspection No. 1 power supply and No. 2 cable power voltages, network interconnecting circuit on off state is detected by network interconnecting circuit state detection circuit, if when No. 1 power supply, No. 2 cable power have electric, the locking of controller Y0, Y1 port, now pressing energy storage button 1SB and switch knob 2SB all can not energy storage and combined floodgate, network interconnecting circuit locking; Only have No. 1 power supply or No. 2 cable power to have a road power failure out of service, controller Y0, Y1 port ability unlocking, now pressing energy storage button 1SB and switch knob 2SB could energy storage and combined floodgate.
Claims (5)
1. a remote electric substation low-voltage dual power contact control device for power distribution cabinet, it is characterized in that: described control device comprises controller (U1), controller (U1) and controller current supply circuit, power state detection circuit, get in touch with power distribution cabinet control circuit and be connected.
2. remote electric substation according to claim 1 low-voltage dual power contact control device for power distribution cabinet, it is characterized in that: described controller current supply circuit comprises connection control device (U1) and controls the switching relay (CK) of power supply, described control power supply comprises the link cable power supply of transformation station power supply and another remote electric substation, and the coil crossover of switching relay (CK) is on the major loop of link cable power supply.
3. remote electric substation according to claim 1 low-voltage dual power contact control device for power distribution cabinet, it is characterized in that: described power supply status observation circuit comprises near-end power state detection circuit and link cable power state detection circuit, described near-end power state detection circuit comprises the first relay normally open contact (1YJ-1) in parallel, second relay normally open contact (2YJ-1), 3rd relay normally open contact (3YJ-1), first relay coil (1YJ), second relay coil (2YJ), 3rd relay coil (3YJ) is respectively by the first fuse (1FU), second fuse (2FU), 3rd fuse (3FU) is connected on and enters on the upper end voltage circuit of network interconnecting circuit, described link cable power state detection circuit comprises the 4th relay normally open contact (4YJ-1) in parallel, 5th relay normally open contact (5YJ-1), 6th relay normally open contact (6YJ-1), 4th relay coil (4YJ), 5th relay coil (5YJ), 6th relay coil (6YJ) is respectively by the 4th fuse (4FU), 5th fuse (5FU), 6th fuse (6FU) is connected on the link cable supply voltage loop of the lower end voltage circuit entering network interconnecting circuit.
4. remote electric substation according to claim 1 low-voltage dual power contact control device for power distribution cabinet, it is characterized in that: described contact power distribution cabinet control circuit comprises the under-voltage coil of contact device (2QFQ), network interconnecting circuit energy storage motor (2QFD), network interconnecting circuit closing coil (2QFX), network interconnecting circuit switching winding (2QFF), contact device is under-voltage, and coil (2QFQ) one end controls power supply II (2), other end connection control power supply I (1) and controller (U1), network interconnecting circuit energy storage motor (2QFD) one end is connected with control power supply II (2), the other end is connected with controller (U1) by energy storage button (1SB), network interconnecting circuit closing coil (2QFX) one end is connected with control power supply II (2), the other end is connected with controller by switch knob (2SB), network interconnecting circuit switching winding (2QFF) one end connection control power supply II (2), the other end is connected with controller (U1) by opening button (3SB).
5. remote electric substation according to claim 1 low-voltage dual power contact control device for power distribution cabinet, is characterized in that: described controller (U1) adopts programmable logic controller (PLC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426292.5U CN204732967U (en) | 2015-06-19 | 2015-06-19 | A kind of remote electric substation low-voltage dual power contact control device for power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426292.5U CN204732967U (en) | 2015-06-19 | 2015-06-19 | A kind of remote electric substation low-voltage dual power contact control device for power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204732967U true CN204732967U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520426292.5U Expired - Fee Related CN204732967U (en) | 2015-06-19 | 2015-06-19 | A kind of remote electric substation low-voltage dual power contact control device for power distribution cabinet |
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| Country | Link |
|---|---|
| CN (1) | CN204732967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987751A (en) * | 2020-07-31 | 2020-11-24 | 国网福建省电力有限公司泉州供电公司 | Contact cabinet, contact circuit breaker and operation method thereof |
-
2015
- 2015-06-19 CN CN201520426292.5U patent/CN204732967U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987751A (en) * | 2020-07-31 | 2020-11-24 | 国网福建省电力有限公司泉州供电公司 | Contact cabinet, contact circuit breaker and operation method thereof |
| CN111987751B (en) * | 2020-07-31 | 2023-05-05 | 国网福建省电力有限公司泉州供电公司 | Communication cabinet, communication breaker and operation method of communication breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20170619 |
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| CF01 | Termination of patent right due to non-payment of annual fee |