CN204633303U - A kind of rural power grids that are used for leak electricity intelligent coincidence arrangement for radio area - Google Patents
A kind of rural power grids that are used for leak electricity intelligent coincidence arrangement for radio area Download PDFInfo
- Publication number
- CN204633303U CN204633303U CN201520174933.2U CN201520174933U CN204633303U CN 204633303 U CN204633303 U CN 204633303U CN 201520174933 U CN201520174933 U CN 201520174933U CN 204633303 U CN204633303 U CN 204633303U
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- Prior art keywords
- residual current
- circuit
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- model
- radio area
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Abstract
The utility model relates to and improves the reliability engineering field of residual current operated protective device, specifically refers to a kind ofly to leak electricity intelligent coincidence arrangement for radio area for rural power grids.Comprise the residual current detection circuit, MCU control module and the reclosing circuit that connect with residual current transformer, wherein current transformer is connected with residual current detection circuit by winding.The utility model has the advantage of, can to solve because thunderstorm weather, electrical network impact the up time fault such as unstable after causing switch trip equipment to have a power failure can not in time, the problem of automatic recovery of power supply, stable, reliable power supply can be provided for equipment, extend the power consumption equipment life-span, improve network service quality, reduce networking investment and reduce maintenance cost.
Description
Technical field
The utility model relates to raising
rural power grids are for radio areathe reliability engineering field of residual current operated protective device, specifically refers to and a kind of to leak electricity intelligent coincidence arrangement for radio area for rural power grids.
Background technology
Current solution is in low voltage electric network, install RCD (residual current operated protective device; i.e. RCD; hereinafter referred to as residual current operated protective device), be the effective safeguard procedures of one preventing person electric shock, electrical fire and electric equipment from damaging.Countries in the world and International Electrotechnical Commission vigorously promote the use RCD by the corresponding electrical install code of formulation and electricity consumption code in low voltage electric network.In the productive life of reality, cause the mistrip of switch because thunderstorm weather, electrical network impact the transient fault such as unstable, and equipment can not the problem of automatic recovery of power supply after having a power failure.Because line contact device after tripping cannot automatic reclosing, therefore bring very big inconvenience to productive life, reduce network service quality, too increase maintenance cost simultaneously.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, for transient fault, and provides a kind of and to leak electricity intelligent coincidence arrangement for radio area for rural power grids.
The technical solution of the utility model comprises residual current detection circuit and trip circuit, also comprises MCU control module and reclosing circuit, and described MCU control module is connected with residual current detection circuit, trip circuit and reclosing circuit respectively.
Described reclosing circuit comprises at least two line contact device circuit in parallel.
When residual current is greater than setting value, corresponding line contact device in time delay tripping reclosing circuit; Within the time period of setting, occur first time residual current protecting, then the line contact in reclosing circuit thinks highly of conjunction, and switch closes again.
The utility model has the advantage of; can to solve because thunderstorm weather, electrical network impact the transient fault such as unstable after causing switch trip equipment to have a power failure can not the problem of automatic recovery of power supply; and in rural power grids are powered; due to switching device and protective device quality uneven, can false tripping be caused.The problem of this device timely automatic recovery of power supply after solving mistrip, for equipment provides stable, reliable power supply, extends the power consumption equipment life-span, improves network service quality, reduces networking investment and reduction maintenance cost.
Accompanying drawing explanation
Accompanying drawing 1 is utility model works principle schematic.
Accompanying drawing 2 is reclosing circuit diagram.
Embodiment
Below in conjunction with the accompanying drawing 1 to 2 in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model bag residual current detection circuit 1 and trip circuit 3, also comprise MCU control module 2 and reclosing circuit 4, and described MCU control module 2 is connected with residual current detection circuit 1, trip circuit 3 and reclosing circuit 4 respectively.
Described reclosing circuit 4 comprises at least two line contact device circuit in parallel.
When residual current is greater than setting value, corresponding line contact device in time delay tripping reclosing circuit 4; Within the time period of setting, occur first time residual current protecting, then the line contact in reclosing circuit 4 thinks highly of conjunction, and switch closes again.
During use, when the residual current operated protective device of a certain outlet impacts the up time faults such as instability cause switch trip because of thunderstorm weather, electrical network, cause the residual current operated protective device switch trip of adjacent outlet, this tripping operation is false tripping simultaneously.Traditional method needs manual detection, confirms as false tripping and realizes manual reversion.And the utility model is for false tripping, can realize within the time period of setting, carry out line contact under the instruction that reclosing circuit 4 sends in MCU control module 2 and think highly of conjunction, thus realize restoring electricity in time, reduce human cost, for equipment provides stable, reliable power supply.
Claims (1)
1. one kind to leak electricity intelligent coincidence arrangement for radio area for rural power grids, comprise residual current detection circuit and trip circuit, it is characterized in that, also comprise MCU control module and reclosing circuit, described MCU control module is connected with residual current detection circuit, trip circuit and reclosing circuit respectively; Described reclosing circuit comprises at least two line contact device circuit in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520174933.2U CN204633303U (en) | 2015-03-27 | 2015-03-27 | A kind of rural power grids that are used for leak electricity intelligent coincidence arrangement for radio area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520174933.2U CN204633303U (en) | 2015-03-27 | 2015-03-27 | A kind of rural power grids that are used for leak electricity intelligent coincidence arrangement for radio area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204633303U true CN204633303U (en) | 2015-09-09 |
Family
ID=54052296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520174933.2U Expired - Fee Related CN204633303U (en) | 2015-03-27 | 2015-03-27 | A kind of rural power grids that are used for leak electricity intelligent coincidence arrangement for radio area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204633303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900758A (en) * | 2020-06-30 | 2020-11-06 | 国网山东省电力公司菏泽供电公司 | Distributed power source voltage-loss tripping switch |
-
2015
- 2015-03-27 CN CN201520174933.2U patent/CN204633303U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900758A (en) * | 2020-06-30 | 2020-11-06 | 国网山东省电力公司菏泽供电公司 | Distributed power source voltage-loss tripping switch |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20210327 |