CN204794338U - System for technology 10kV load transfer is hauled oneself willingly into fully in electrified adoption - Google Patents
System for technology 10kV load transfer is hauled oneself willingly into fully in electrified adoption Download PDFInfo
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- CN204794338U CN204794338U CN201520512017.5U CN201520512017U CN204794338U CN 204794338 U CN204794338 U CN 204794338U CN 201520512017 U CN201520512017 U CN 201520512017U CN 204794338 U CN204794338 U CN 204794338U
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Abstract
System for technology 10kV load transfer is hauled oneself willingly into fully in electrified adoption, this system is including parallelly connected first bypass cable (L1), second bypass cable (L2), third bypass cable (L3), concatenate first power and hauled oneself willingly into controlling means (1DL) and the bypass switch (K2) fully on first bypass cable (L1), met load switch (K1) on second bypass cable (L2), connect the second source to haul oneself willingly into controlling means (2DL) fully on third bypass cable (L3). The utility model discloses can safe deenergization side fault line to guide electrical load behind the cut -off point into other normal operation power, have advantages such as the reaction of hauling oneself willingly into fully is rapid, the shutting is reliable, keep the uninterrupted power supply to the circuit user through the by path system. Can carry out troubleshooting or routine maintenance to the circuit that gets into under the power down mode simultaneously, ensure the work safety.
Description
Technical field
The utility model belongs to bypass live line working technical field, when being adapted at Awaiting Overhaul 10kV distribution line by dead electricity source, utilizes live line working and duplicate supply prepared auto restart technology to realize uninterrupted power supply to Awaiting Overhaul point back-end load.
Background technology
Constant power supply is the basic demand of each department of national economy to electric power.Along with the development of China's economic construction, urban electricity supply reliability has become power supply unit emphasis performance assessment criteria, improve the vital task that power supply reliability has become current power department, widely popularize 10kV line live-line work, being the developing direction of urban power distribution network overhaul management from now on, is also the major measure replacing interruption maintenance.At present, 10kV overhead transmission line high pressure-high voltage load turns comparatively extensive for carrying out in China, and technology is relative maturity.But turning of above-mentioned load supplies to need 10kV overhead transmission line to have power supply, realize user by the mode of bypass operation not have a power failure, and for current distribution bypass live line working, it only can when 10kV circuit has electric, the temporary transmission system formed by charged bypath system, cross-over connection trouble hunting or routine maintenance part of path, once overhaul of line breaker appears in 10kV overhead wire, cannot ensure the normal power supply of user.Therefore this kind of load transfer method is subject to certain condition restriction, can not meet the requirement of all distribution uninterrupted operations.
Summary of the invention
The purpose of this utility model is to solve the limitation that current distribution network load turns confession and bypass live line working, provides a kind of charged employing prepared auto restart technology to realize the system of 10kV load transfer plan.
Realize the purpose of this utility model technical scheme as follows:
Charged employing prepared auto restart technology realizes the system of 10kV load transfer plan, and this system comprises the first bypass cable, the second bypass cable, the 3rd bypass cable in parallel; First bypass cable is serially connected with the first power supply prepared auto restart control device and by-pass switch, the second bypass cable is connected to on-load switch, the 3rd bypass cable is connected to second source prepared auto restart control device.
When 10kV breakage of circuit front end battle need maintenance, cut-off point back-end load cannot turn for time, this practicality is newly connected between a 10kV circuit of Awaiting Overhaul and the 2nd 10kV circuit for subsequent use, the power supply that can realize cut-off point backend user is transferred to by the 2nd 10kV line powering for subsequent use by a 10kV circuit, realizes the uninterrupted power supply of user.
The utility model adopts live line working to be operated by by-pass switch and prepared auto restart control device, energy safe deenergization side fault (maintenance) circuit, and guide power load after cut-off point into other normal operation power supply, there is the advantages such as prepared auto restart is swift in response, locking is reliable, kept line user uninterrupted power supply by bypath system.Trouble hunting or routine maintenance can be carried out to the circuit entered under power down mode simultaneously, guarantee work safety.The utility model compensate for the blank of current distribution bypass live line working under 10kV circuit loses power conditions, solves distribution bypass live line working to the dependence of power supply, for the all-round popularization of distribution network live line work provides technique guarantee.
Accompanying drawing explanation
Fig. 1 is fundamental diagram of the present utility model.
Embodiment
Content of the present utility model is set forth further below in conjunction with Figure of description.
As shown in Figure 1, the utility model comprises the first bypass cable L1, the second bypass cable L2, the 3rd bypass cable L3 in parallel; First bypass cable L1 is serially connected with the first power supply prepared auto restart control device 1DL and by-pass switch K2, the second bypass cable L2 is connected to on-load switch K1, the 3rd bypass cable L3 is connected to second source prepared auto restart control device 2DL.This practicality is newly connected between a 10kV circuit 1 of Awaiting Overhaul and the 2nd 10kV circuit 2 for subsequent use, the free end of the first bypass cable L1 and the second bypass cable L2 is connected to the front-end and back-end of the cut-off point 3 of a 10kV circuit 1 of Awaiting Overhaul, by-pass switch K2 the first bypass cable the first power supply prepared auto restart control device 1DL and and the tie point of a 10kV circuit between, the free end of the 3rd bypass cable L3 is connected with the 2nd 10kV circuit 2.When cut-off point front end needs maintenance, access the utility model on request.Guarantee that all on-load switches are in open position during the utility model access, all prepared auto restart switches are in electroless state.First close after the utility model access on-load switch K1, K2, after prepared auto restart switch is energized, energy normal operation, then disconnects on-load switch K2, automatically disconnects after making prepared auto restart switch 1DL power-off, prepared auto restart switch 2DL automatic closing, cut-off point backend user load transfers to by the 2nd 10kV line powering.Live line working makes cut-off point 3 disconnect, and guarantees that cut-off point rear end is zero load, can overhaul a 10kV circuit.After maintenance, close by-pass switch K2, the prepared auto restart switch 2DL after prepared auto restart switch 1DL that closes disconnects automatically, remove the bypass cable L3 that 2DL is connected with the 2nd 10kV circuit 2, live line working disconnects on-load switch K1 after recovering the connection of cut-off point 3, is finally pulled down from a 10kV circuit by the first bypass cable L1 and the second bypass cable L2.
Claims (1)
1. charged employing prepared auto restart technology realizes the system of 10kV load transfer plan, it is characterized in that, this system comprises the first bypass cable (L1), the second bypass cable (L2), the 3rd bypass cable (L3) in parallel; First bypass cable (L1) is serially connected with the first power supply prepared auto restart control device (1DL) and by-pass switch (K2), second bypass cable (L2) is connected to on-load switch (K1), the 3rd bypass cable (L3) is connected to second source prepared auto restart control device (2DL).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520512017.5U CN204794338U (en) | 2015-07-15 | 2015-07-15 | System for technology 10kV load transfer is hauled oneself willingly into fully in electrified adoption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520512017.5U CN204794338U (en) | 2015-07-15 | 2015-07-15 | System for technology 10kV load transfer is hauled oneself willingly into fully in electrified adoption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794338U true CN204794338U (en) | 2015-11-18 |
Family
ID=54534316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520512017.5U Active CN204794338U (en) | 2015-07-15 | 2015-07-15 | System for technology 10kV load transfer is hauled oneself willingly into fully in electrified adoption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794338U (en) |
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2015
- 2015-07-15 CN CN201520512017.5U patent/CN204794338U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.1 yangxianpo, Wuhua District, Kunming, Yunnan 650033 Patentee after: Transmission branch of Yunnan Power Grid Co.,Ltd. Address before: No. 201, Baita Road, Panlong District, Kunming, Yunnan 650011 Patentee before: YUNNAN POWER GRID Co.,Ltd. CHARGED OPERATION BRANCH |