CN204794080U - Remote electric substation dual supply contact switch board without control cable shutting - Google Patents
Remote electric substation dual supply contact switch board without control cable shutting Download PDFInfo
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- CN204794080U CN204794080U CN201520426298.2U CN201520426298U CN204794080U CN 204794080 U CN204794080 U CN 204794080U CN 201520426298 U CN201520426298 U CN 201520426298U CN 204794080 U CN204794080 U CN 204794080U
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- network interconnecting
- circuit
- electric substation
- power supply
- contact
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Abstract
The utility model provides a remote electric substation dual supply contact switch board without control cable shutting, including the cabinet body of the dual supply of electric substation contact switch board, internal knife -like switch, network interconnecting circuit breaker and the controlling means of setting up of cabinet, the power link cable of a remote electric substation adopts low tension cable from the mode of cabinet body lower extreme inlet wire, loops through network interconnecting circuit breaker and knife -like switch and inserts low voltage distribution system contact busbar, and controlling means and network interconnecting circuit breaker are continuous. The utility model discloses network interconnecting circuit breaker's shutting can be controlled according to the condition of two transformer substation's powers to the controller, realizes the electric shutting of remote electric substation dual supply contact cabinet circuit breaker without control cable, need not reform transform original power supply system simultaneously, lay control cable again, use manpower sparingly, financial resources, convenient current electric substation, residential quarter distribution system reducing energy consumption are favorable to energy saving and emission reduction.
Description
Technical field
The utility model relates to the low-voltage electrical field in distribution system, especially a kind of remote electric substation duplicate supply contact power distribution cabinet without control cables locking.
Background technology
Duplicate supply contact power distribution cabinet is the visual plant of electric power system power distribution, mainly realize two-way power supply mutually to switch, Ji Dang mono-road power supply runs, when another road transformer fault or high pressure have a power failure, by duplicate supply contact power distribution cabinet to another road load supplying, improve power supply reliability.Be widely used in residential quarter, factory, communal facility, etc. place.
At present, the shortcoming that existing low-voltage dual power contact power distribution cabinet exists is:
1, most of low-voltage dual power contact power distribution cabinet, two transformers are all in an electric substation, use control cables.Realize isolating and locking by two incoming line cabinet circuit breakers and contact cabinet breaker auxiliary switch contact.The residential quarter that some development of real estate are now newly-built, there are multiple stage box-type substation and electric substation, standoff distance is far away, when occupancy rate is low, in order to electrical energy saving, reduce the wastage, need two remote electric substations or box type transformation station deactivation one, got in touch with by institute's bringing onto load by low-voltage cable, run a transformer-supplied, existing duplicate supply contact cabinet cannot realize isolation and locking.
2, will realize isolation and locking, need to lay control cables between Liang Ge electric substation, construction is inconvenient, and some built facilities cannot construct to lay.
3, during link cable transformation, cause original electric power system to have a power failure, waste waste of material, makes troubles to resident living.
Utility model content
The technical problems to be solved in the utility model is that providing a kind of solves remote electric substation low-voltage dual power contact power distribution cabinet cannot realize electric blocking remote electric substation duplicate supply contact power distribution cabinet without control cables, to solve prior art Problems existing.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of remote electric substation duplicate supply contact power distribution cabinet without control cables, comprise the cabinet of the duplicate supply contact power distribution cabinet of electric substation, knife switch, network interconnecting circuit and control device are set in cabinet, the power acquisition low-voltage cable of another remote electric substation is from the mode of cabinet lower end inlet wire, successively by network interconnecting circuit and knife switch access low-voltage distribution system contact bus-bar, control device is connected with network interconnecting circuit.
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, network interconnecting circuit is under-voltage, and coil one end is connected with control power supply II, other end connection control power supply I connects, be connected with controller C0 port simultaneously, network interconnecting circuit energy storage motor one end is connected with control power supply II, the other end is connected with controller Y0 port 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 Y1 port by switch knob, network interconnecting circuit switching winding one end connection control power supply II, the other end is connected with control power supply I by opening button.
Described controller adopts programmable logic controller (PLC).
The beneficial effects of the utility model:
1, by the locking of controller according to No. 1 power supply, No. 2 cable power situations control network interconnecting circuits, the remote electric substation duplicate supply contact cabinet breaker electric blocking without control cables is realized;
2, the multiple power sources such as remote electric substation, box-type substation are adapted to;
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 controlling party block diagram of the present utility model.
Fig. 2 is connecting system figure of the present utility model.
Fig. 3 is circuit theory diagrams of the present utility model.
Fig. 4 is primary system figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing 1 ~ 4 and embodiment, the utility model is described in further detail.
As shown in Fig. 1 ~ 4, the utility model provides a kind of remote electric substation duplicate supply contact power distribution cabinet without control cables,
Comprise the cabinet of the duplicate supply contact power distribution cabinet of electric substation (No. 1 electric substation namely in figure), knife switch QS, network interconnecting circuit 2QF and control device are set in cabinet, the power supply link cable connecting another remote electric substation (i.e. No. 2 electric substations in figure) adopts low-voltage cable from the mode of cabinet lower end inlet wire, successively by network interconnecting circuit 2QF and the knife switch QS access low-voltage distribution system contact bus-bar of No. 2 power supply link cables, 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, preferably adopts model to be the controller of DVP14ES00R2.
Controller current supply circuit comprises connection control device U1 and controls the switching relay CK of power supply, described control power supply comprises the power supply link cable (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 power supply link cable.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 be connected in parallel between controller 24G port and X0 port, 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 be connected in parallel between the 24G port of controller and X2 port, 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 network interconnecting circuit, 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 connection, 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.By above-mentioned process; the load of Liang Ge electric substation is connected together; when transformer station's load that residential quarter occupancy rate is low or cause because of other reasons long-term lighter time; by method of the present utility model, the load of Liang Ge substation can be powered by a transformer station; stop using another transformer station; reduce energy resource consumption, energy-saving and emission-reduction, protection of the environment.
Claims (6)
1. without the remote electric substation duplicate supply contact power distribution cabinet of control cables locking, comprise the cabinet of the duplicate supply contact power distribution cabinet of electric substation, knife switch (QS), network interconnecting circuit (2QF) and control device are set in cabinet, it is characterized in that: the power acquisition low-voltage cable of another remote electric substation is from the mode of cabinet lower end inlet wire, access low-voltage distribution system contact bus-bar by network interconnecting circuit (2QF) and knife switch (QS) successively, control device is connected with network interconnecting circuit (2QF).
2. the remote electric substation duplicate supply contact power distribution cabinet without control cables locking according to claim 1, 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.
3. the remote electric substation duplicate supply contact power distribution cabinet without control cables locking according to claim 2, 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.
4. the remote electric substation duplicate supply contact power distribution cabinet without control cables locking according to claim 2, 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.
5. the remote electric substation duplicate supply contact power distribution cabinet without control cables locking according to claim 2, 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), network interconnecting circuit is under-voltage, and coil (2QFQ) one end is connected with control power supply II (2), other end connection control power supply I (1) connects, be connected with controller (U1) C0 port simultaneously, 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) Y0 port 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 Y1 port 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).
6. the remote electric substation duplicate supply contact power distribution cabinet without control cables locking according to claim 2, is characterized in that: described controller (U1) adopts programmable logic controller (PLC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426298.2U CN204794080U (en) | 2015-06-19 | 2015-06-19 | Remote electric substation dual supply contact switch board without control cable shutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520426298.2U CN204794080U (en) | 2015-06-19 | 2015-06-19 | Remote electric substation dual supply contact switch board without control cable shutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794080U true CN204794080U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520426298.2U Expired - Fee Related CN204794080U (en) | 2015-06-19 | 2015-06-19 | Remote electric substation dual supply contact switch board without control cable shutting |
Country Status (1)
| Country | Link |
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| CN (1) | CN204794080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164603A (en) * | 2020-08-28 | 2021-01-01 | 临涣焦化股份有限公司 | Closing and locking system of low-voltage main feeder brake separating and communicating cabinet of low-voltage substation |
-
2015
- 2015-06-19 CN CN201520426298.2U patent/CN204794080U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164603A (en) * | 2020-08-28 | 2021-01-01 | 临涣焦化股份有限公司 | Closing and locking system of low-voltage main feeder brake separating and communicating cabinet of low-voltage substation |
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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: 20151118 Termination date: 20170619 |
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| CF01 | Termination of patent right due to non-payment of annual fee |