CN201134619Y - Loop-closed electricity switching device for 10KV distributing network - Google Patents
Loop-closed electricity switching device for 10KV distributing network Download PDFInfo
- Publication number
- CN201134619Y CN201134619Y CNU2007201887304U CN200720188730U CN201134619Y CN 201134619 Y CN201134619 Y CN 201134619Y CN U2007201887304 U CNU2007201887304 U CN U2007201887304U CN 200720188730 U CN200720188730 U CN 200720188730U CN 201134619 Y CN201134619 Y CN 201134619Y
- Authority
- CN
- China
- Prior art keywords
- switch
- distribution network
- control switch
- incoming line
- closing control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000005611 electricity Effects 0.000 title description 11
- 238000005259 measurement Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 7
- 238000007363 ring formation reaction Methods 0.000 description 16
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model relates to a switching closing control switch of a 1 # incoming line switching closing control switch, a 2 # incoming line switching closing control switch and a section switch in a 1# power supply incoming line switch, a 2 # power supply incoming line switch and a switching closing control switch of a section switch, which is arranged in a box body, and is respectively connected in a 10 KV distribution network unit through a control cable. The switching closing control switch also comprises a 1 section bus-bar voltage measuring terminal and a 2 section bus-bar voltage measuring terminal which are respectively connected on voltage measuring terminal rows of a 1 # voltage mutual inductor and a 2 # voltage mutual inductor in a 10KV distribution network unit through a secondary cable. The switching closing control switch not only achieves the switching of uninterrupted power supply, since switching control separates with the 10 KV distribution network unit, the switching closing control switch avoids the dangers which may occur on electrical isolated islands and the like, and therefore, the operation is safe.
Description
Technical field
The utility model relates to the control switch device, specifically be that a kind of 10KV distribution network closed loop changes electric installation, it and 10KV distribution network adapted, change electric mode by adopting safe cyclization, do not change thereby guaranteeing does not have a power failure, effectively improve the power supply reliability of distribution, reduce externally and have a power failure lifting distribution operation and management level.
Background technology
Current, the 10kV distribution network in many cities adopts looped network design, radial operational mode more.Each 10KV distribution network unit comprises two sections buses i.e. 1 section bus and 2 sections buses and the 1# service entrance switch, the 2# service entrance switch that are connected with 2 sections buses with 1 section bus respectively, the block switch that 1,2 section bus is connected, and the 1# voltage transformer and the 2# voltage transformer that are connected with 2 sections buses with 1 section bus respectively.Usually because the maintenance or the reason of fault need be changed the electricity operation, when changing the related circuit of electricity and belong to same 110kV power supply, this problem is very simple, can adopt cyclization to change electric mode in the distribution network, thereby guaranteeing not have a power failure does not change.When changing the related circuit of electricity and do not belong to same 110kV power supply, this problem if also adopt closed loop to change electric mode, will form the electromagnetic looped network of a plurality of electric pressures with regard to more complicated, might cause the overload of local line.Be apparatus overload or the protection tripping operation of avoiding the cyclization operation to cause, adopting has a power failure always changes the mode of electricity, after for example 1 section bus in the same 10KV distribution network unit being had a power failure, the block switch that connects between 1,2 section bus is closed again.But along with the develop rapidly of national economy, living standards of the people improve day by day, and the user is more and more higher to the requirement of power supply reliability, and having a power failure, it is more and more outstanding to change the problem that electricity brought.
Summary of the invention
The purpose of this utility model be to provide a kind of can realize not having a power failure change electricity, 10KV distribution network closed loop safe in utilization changes electric installation.
The technical scheme that adopts is so for achieving the above object: a kind of 10KV distribution network closed loop changes electric installation, comprise casing, it is characterized in that: in casing, be provided with the divide-shut brake control switch that is connected to 1# inlet wire divide-shut brake control switch, 2# inlet wire divide-shut brake control switch and block switch in the divide-shut brake control loop of 1# electric power incoming line switch, 2# electric power incoming line switch and block switch in the 10KV distribution network unit by control cable; Also comprise by secondary cable and be connected to 1 section bus voltage measurement terminal and 2 sections bus voltage measurement terminals on the 1# voltage transformer and 2# voltage transformer voltage measurement terminal board in the 10KV distribution network unit.
When stating device in the use, at first calculate after the cyclization is that the trend of whole loop after the block switch closure distributes, if the cyclization point voltage difference in magnitude obtained is not more than 0.3kV, and phase difference of voltage is not more than 3 ° and then can carries out cyclization at the scene and change the electricity operation, changes the electricity operation otherwise can not carry out cyclization.Before operating personnel operate at the scene, also need utilize the phase angle instrument on the voltage measurement terminal, to measure the voltage amplitude value difference and the phase difference of voltage of cyclization point both sides, result of calculation is checked, the cyclization condition is same as described above, be that cyclization point voltage difference in magnitude is not more than 0.3kV, and phase difference of voltage is not more than 3 °.
Adopt the utility model device, not only realized the switching of uninterrupted power supply, because switching controls separates with the 10KV distribution network unit, danger thereby the handling safety of having avoided electric isolated island etc. to occur.
Description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1-1# electric power incoming line switch; The 2-block switch; 3-2# electric power incoming line switch; 4-1 section bus; 5-2 section bus; The 6-1# voltage transformer; 7-2# voltage transformer, 8-2# electric power incoming line divide-shut brake control switch, 9-block switch divide-shut brake control switch; 10-1# electric power incoming line divide-shut brake control switch; 11-2 section bus voltage measurement terminal; 12-1 section bus voltage measurement terminal; 13-control cabinet casing.
Embodiment
Referring to accompanying drawing, 10KV distribution network closed loop among the figure changes electric installation and comprises control cabinet casing 13, it is characterized in that: be provided with in casing by control cable and be connected to 1# inlet wire divide-shut brake control switch 10,2# inlet wire divide-shut brake control switch 8 and block switch divide-shut brake control switch 9 in the divide-shut brake control loop of 1# electric power incoming line switch 1 in the 10KV distribution network unit, 2# electric power incoming line switch 3 and block switch 2; Also comprise by secondary cable and be connected to 1 section bus voltage measurement terminal 12 and 2 sections bus voltage measurement terminals 11 on the 1# voltage transformer 6 and 2# voltage transformer 7 voltage measurement terminal boards in the 10KV distribution network unit.
Described control cabinet casing 13 is wall-hanging.
When changing electricity when preparing not have a power failure, 1 section bus voltage measurement terminal 13 and 2 sections bus voltage measurement terminals 14 are measured the difference of cyclization preceding both sides power source voltage phase angles and amplitude, operating personnel can calculate the cyclization electric current according to real-time trend, affirmation can cyclization after, operating personnel arrive on-the-spot by the voltage measurement terminal, to the voltage amplitude value difference between two power supplys, phase angle difference is measured affirmation, after meeting the cyclization condition, operating personnel are promptly by the divide-shut brake button on the cyclization control cabinet: 1# electric power incoming line divide-shut brake control switch 10, block switch divide-shut brake control switch 9,2# electric power incoming line divide-shut brake control switch 8 carries out cyclization and changes the electricity operation, and realizing does not have a power failure changes; After cooperating the switch of use control far away simultaneously, separating closing locking device and voltage phase angle measurement mechanism, more can safe realization operate away from switch cubicle, avoid the danger that may occur.
Claims (2)
1. a 10KV distribution network closed loop changes electric installation, comprise control cabinet casing (13), it is characterized in that: in casing, be provided with by control cable and be connected to 1# inlet wire divide-shut brake control switch (10), 2# inlet wire divide-shut brake control switch (8) and block switch divide-shut brake control switch (9) in the divide-shut brake control loop of 1# electric power incoming line switch (1) in the 10KV distribution network unit, 2# electric power incoming line switch (3) and block switch (2); Also comprise by secondary cable and be connected to 1 section bus voltage measurement terminal (12) and the 2 sections bus voltage measurement terminals (11) on the 1# voltage transformer (6) and 2# voltage transformer (7) voltage measurement terminal board in the 10KV distribution network unit.
2,10KV distribution network closed loop according to claim 1 changes electric installation, it is characterized in that: described control cabinet casing (13) is for wall-hanging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201887304U CN201134619Y (en) | 2007-12-29 | 2007-12-29 | Loop-closed electricity switching device for 10KV distributing network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201887304U CN201134619Y (en) | 2007-12-29 | 2007-12-29 | Loop-closed electricity switching device for 10KV distributing network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134619Y true CN201134619Y (en) | 2008-10-15 |
Family
ID=40062888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201887304U Expired - Lifetime CN201134619Y (en) | 2007-12-29 | 2007-12-29 | Loop-closed electricity switching device for 10KV distributing network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134619Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800442A (en) * | 2010-03-29 | 2010-08-11 | 许继集团有限公司 | Intelligent transformer substation voltage switching and paralleling method and device |
| CN103928988A (en) * | 2014-04-29 | 2014-07-16 | 国家电网公司 | Loop closing electricity switching detection and control system |
| CN107492891A (en) * | 2017-08-25 | 2017-12-19 | 国网安徽省电力公司安庆供电公司 | Movable-type intelligent ring device and its application method |
| CN109149573A (en) * | 2018-09-26 | 2019-01-04 | 云南电网有限责任公司电力科学研究院 | A kind of intelligent power distribution ring device adjusted based on TCR |
| CN116979572A (en) * | 2023-09-25 | 2023-10-31 | 广东电网有限责任公司中山供电局 | Control method and system of electrochemical energy storage power station of anti-electromagnetic ring network |
-
2007
- 2007-12-29 CN CNU2007201887304U patent/CN201134619Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800442A (en) * | 2010-03-29 | 2010-08-11 | 许继集团有限公司 | Intelligent transformer substation voltage switching and paralleling method and device |
| CN101800442B (en) * | 2010-03-29 | 2013-09-04 | 许继集团有限公司 | Intelligent transformer substation voltage switching and paralleling method and device |
| CN103928988A (en) * | 2014-04-29 | 2014-07-16 | 国家电网公司 | Loop closing electricity switching detection and control system |
| CN103928988B (en) * | 2014-04-29 | 2017-03-15 | 国家电网公司 | Electric TT＆C system is changed in a kind of cyclization |
| CN107492891A (en) * | 2017-08-25 | 2017-12-19 | 国网安徽省电力公司安庆供电公司 | Movable-type intelligent ring device and its application method |
| CN109149573A (en) * | 2018-09-26 | 2019-01-04 | 云南电网有限责任公司电力科学研究院 | A kind of intelligent power distribution ring device adjusted based on TCR |
| CN116979572A (en) * | 2023-09-25 | 2023-10-31 | 广东电网有限责任公司中山供电局 | Control method and system of electrochemical energy storage power station of anti-electromagnetic ring network |
| CN116979572B (en) * | 2023-09-25 | 2024-01-26 | 广东电网有限责任公司中山供电局 | Control method and system of electrochemical energy storage power station of anti-electromagnetic ring network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121126 Owner name: CHONGQING ELECTRIC POWER CORP. CITY POWER SUPPLY B Free format text: FORMER OWNER: CHONGQING ELECTRIC POWER CORP. CHENGQU POWER SUPPLY BUREAU Effective date: 20121126 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121126 Address after: 400015 No. 26 Renmin Road, Yuzhong District, Chongqing Patentee after: Chongqing Electric Power Co., Ltd.Urban Power Supply Bureau Patentee after: State Grid Corporation of China Address before: 400015 No. 26 Renmin Road, Yuzhong District, Chongqing Patentee before: Chongqing Electric Power Corp. Chengqu Power Supply Bureau |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081015 |