CN104753046A - Distribution-circuit intermediate protection integrated device - Google Patents
Distribution-circuit intermediate protection integrated device Download PDFInfo
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- CN104753046A CN104753046A CN201510197743.7A CN201510197743A CN104753046A CN 104753046 A CN104753046 A CN 104753046A CN 201510197743 A CN201510197743 A CN 201510197743A CN 104753046 A CN104753046 A CN 104753046A
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Abstract
A distributed-circuit intermediate protection integrated device comprises an incoming line terminal, an incoming line side lightening arrester, a fuse protector, a multifunctional power meter, a current transformer, a current terminal row, a residual current operated circuit-breaker, a common-compensation capacitor switch, a self-healing power capacitor, an outgoing line side lightening arrester and an outgoing line terminal which are all installed in a stainless steel box in sequence. The distribution-circuit intermediate protection integrated device is installed on a low-voltage distribution circuit between distribution unit-area overall protection and household protection, the fault point can be isolated once ground fault occurs to a certain branch circuit, failure outage to other circuits never occurs, and power supply continuity and reliability of residential users is guaranteed; the device has a lightning protection function, an electric leakage protection function, and meter, voltage, current and power factor measurement and reactive local compensation functions; overlapping investment can be avoided, and the distribution-circuit intermediate protection integrated device is timesaving, laborsaving, safe and high in operation efficiency.
Description
Technical field
The present invention relates to a kind of electric power system distribution line middle rank protection integration unit.
Background technology
After reform of the rural electricty management system, because rural power service circuit property right and maintenance management responsibility transfer management in power supply enterprise to, very passive for Electrical Safety management.Along with the development of society, enterprise and resident it is also proposed more and more higher requirement to power supply continuity, power equipment safety managerial skills.Power supply enterprise makes great efforts in the safety management of reinforcement rural electricity consumption in recent years, such as implements the measures such as rural electricity consumption safety " strengthening foundation and body " engineering, first carries out how to ensure that user power utilization is safely the most important thing as power supply department.In order to better ensure Electrical Safety, just work must be done in distribution line protection at different levels.Current rural power distribution circuit has platform Qu and always protects and family guarantor (user side) two-stage earth leakage protective; once occur that family guarantor's Above Transmission Lines electric leakage directly impacts platform Qu and always protects; platform district is caused all to have a power failure; resident's power supply continuity and reliability can not be ensured; inconvenience is brought, if a kind of middle rank protection integration unit can be installed just seem extremely important between distribution line platform Qu always protects and family is protected to user.
Summary of the invention
The technical problem to be solved in the present invention is: design a kind of distribution line middle rank protection integration unit; installation site be in power distribution station always protect with family protect between low-voltage distributing line on; it can solve once certain branched line occurs that earth fault can isolate this fault point; other circuit can not cause fault outage, to ensure resident's power supply continuity and reliability.
Solving the technical scheme that problem of the present invention takes is: it comprises end of incoming cables, inlet wire side thunderbolt device, fuse, multi-function watt-hour meter, current transformer, current terminal row, residual current action breaker, mends capacitor switching switch and Self-healing power capacitor, outgoing line side lightning arrester, leading-out terminal altogether, and is arranged in a stainless steel casing; To connect the end of incoming cables in backbone and stainless steel casing through terminal board with insulated copper wire, end of incoming cables connect successively inlet wire side lightning arrester, fuse, one group of multi-function watt-hour meter, current transformer, current terminal row, residual current action breaker, one group mend capacitor switching switch and Self-healing power capacitor, outgoing line side lightning arrester, leading-out terminal altogether, finally draw for receiving on branched line with insulated copper wire.
Good effect of the present invention is: apply this device and can ensure resident's power supply continuity and power supply reliability, can isolated fault point; Device has lightning protection function, creepage protection function, metering, voltage, electric current, power-factor measurement and reactive power compensation on the spot function; Realize reactive power compensation on the spot, avoid the too low and idle long distance delivery of power factor and cause line loss abnormal conditions; Can be extracted by power information acquisition system background computer and analyze this branch for electricity consumption situation, provide important evidence to platform district Controlling line loss; Voltage measurement can transfer branches end voltage section magnitude of voltage situation of change any time, the application of platform district Voltage detector can be replaced completely, save a newly-built voltage detecting platform, by power information acquisition system integrated multifunction application platform, overlapping investment can be avoided, save time, laborsaving, safety, operating efficiency is high.One, order foreground partition Voltage detector needs 2000 yuan, adding wireless communication apparatus and annual communication fee etc., if public district of a power supply enterprise is in about 3000 Ge Tai districts, two Voltage detectors are installed in one Ge Tai district, need more than 6000 platform Voltage detectors (about 1,200 ten thousand), each year communication fee Voltage detector 30 yuan of calculating at present, so 6000 1 year communication fees are exactly 180,000, apply this device and can realize voltage detecting function completely, avoid the overlapping investment of this expense.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, it comprises end of incoming cables 1, HY1.5W-0.28/1.3 inlet wire side thunderbolt device 2, RTO-400 type fuse 3, WH multi-function watt-hour meter 4, current transformer 5, current terminal row 6, QLLT-400 residual current action breaker 7, BSWJ-0.45V-20kvar-3 mend capacitor switching switch and Self-healing power capacitor 8, HY1.5W-0.28/1.3 outgoing line side lightning arrester 9, leading-out terminal 10 altogether, and be arranged in a stainless steel casing, to connect the end of incoming cables 1 in backbone and stainless steel casing through terminal board with insulated copper wire BV-95, end of incoming cables 1 connects HY1.5W-0.28/1.3 inlet wire side lightning arrester 2 successively, RTO-400 type fuse, one group of WH multi-function watt-hour meter 4, current transformer 5, current terminal row 6, QLLT-400 residual current action breaker 7, one group of BSWJ-0.45V-20kvar-3 mends capacitor switching switch and Self-healing power capacitor 8 altogether, HY1.5W-0.28/1.3 outgoing line side lightning arrester 9, finally draw for receiving on branched line with insulated copper wire BV-95, other connecting terminal block distribution uses BV-4
This device can be applicable to low-voltage power distribution station area 400V lines branch circuit uses, and is applicable to the low voltage electric network of distribution transformer low-pressure side three-phase and four-line neutral-point solid ground (TT); Installation site be in power distribution station always protect with family protect between low-voltage distributing line on (i.e. low pressure backbone and branch line), there is the functions such as protection, measurement, reactive power compensator.
Claims (1)
1. a distribution line middle rank protection integration unit, it is characterized in that: it comprises end of incoming cables, inlet wire side thunderbolt device, fuse, multi-function watt-hour meter, current transformer, current terminal row, residual current action breaker, mends capacitor switching switch and Self-healing power capacitor, outgoing line side lightning arrester, leading-out terminal altogether, and is arranged in a stainless steel casing; To connect the end of incoming cables in backbone and stainless steel casing through terminal board with insulated copper wire, end of incoming cables connect successively inlet wire side lightning arrester, fuse, one group of multi-function watt-hour meter, current transformer, current terminal row, residual current action breaker, one group mend capacitor switching switch and Self-healing power capacitor, outgoing line side lightning arrester, leading-out terminal altogether, finally draw for receiving on branched line with insulated copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510197743.7A CN104753046A (en) | 2015-04-24 | 2015-04-24 | Distribution-circuit intermediate protection integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510197743.7A CN104753046A (en) | 2015-04-24 | 2015-04-24 | Distribution-circuit intermediate protection integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104753046A true CN104753046A (en) | 2015-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510197743.7A Pending CN104753046A (en) | 2015-04-24 | 2015-04-24 | Distribution-circuit intermediate protection integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104753046A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994568A (en) * | 2017-11-24 | 2018-05-04 | 国网北京市电力公司 | Low pressure wiring system, low pressure mode of connection and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826755A (en) * | 2010-05-11 | 2010-09-08 | 羿宝存 | Intelligent power distribution network and power-consumption real-time monitoring and managing system |
| CN201674122U (en) * | 2010-04-26 | 2010-12-15 | 南京业基电气设备有限公司 | Comprehensive distribution box |
| CN203180541U (en) * | 2013-04-08 | 2013-09-04 | 国家电网公司 | Pole-mounted automatic reactive power compensator |
| CN104485743A (en) * | 2014-12-22 | 2015-04-01 | 江苏创业信息科技有限公司 | Regional intelligent line loss refined distribution line |
| CN204517386U (en) * | 2015-04-24 | 2015-07-29 | 国网河南夏邑县供电公司 | Distribution line middle rank protection integration unit |
-
2015
- 2015-04-24 CN CN201510197743.7A patent/CN104753046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201674122U (en) * | 2010-04-26 | 2010-12-15 | 南京业基电气设备有限公司 | Comprehensive distribution box |
| CN101826755A (en) * | 2010-05-11 | 2010-09-08 | 羿宝存 | Intelligent power distribution network and power-consumption real-time monitoring and managing system |
| CN203180541U (en) * | 2013-04-08 | 2013-09-04 | 国家电网公司 | Pole-mounted automatic reactive power compensator |
| CN104485743A (en) * | 2014-12-22 | 2015-04-01 | 江苏创业信息科技有限公司 | Regional intelligent line loss refined distribution line |
| CN204517386U (en) * | 2015-04-24 | 2015-07-29 | 国网河南夏邑县供电公司 | Distribution line middle rank protection integration unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994568A (en) * | 2017-11-24 | 2018-05-04 | 国网北京市电力公司 | Low pressure wiring system, low pressure mode of connection and device |
| CN107994568B (en) * | 2017-11-24 | 2021-12-10 | 国网北京市电力公司 | Low-voltage wiring system, low-voltage wiring method and low-voltage wiring device |
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Application publication date: 20150701 |
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| WD01 | Invention patent application deemed withdrawn after publication |