CN203774862U - Power supplying circuit of power distribution automation terminal equipment - Google Patents
Power supplying circuit of power distribution automation terminal equipment Download PDFInfo
- Publication number
- CN203774862U CN203774862U CN201420171147.2U CN201420171147U CN203774862U CN 203774862 U CN203774862 U CN 203774862U CN 201420171147 U CN201420171147 U CN 201420171147U CN 203774862 U CN203774862 U CN 203774862U
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- Prior art keywords
- power supply
- power
- automation terminal
- module
- terminal equipment
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- 238000002955 isolation Methods 0.000 claims abstract description 13
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
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- Direct Current Feeding And Distribution (AREA)
Abstract
The utility model discloses a power supplying circuit of power distribution automation terminal equipment. The power supplying circuit comprises a dual-power supplying power source, a seamless switching device, an air switch, an externally-arranged one-stage power source module, an isolation module and a board-mounted two-stage power source module, wherein the board-mounted two-stage power source module is connected with a plurality of power utilization modules through a DC-DC isolation device, and the externally-arranged one-stage power source module is connected with a storage battery so as to be adopted as a standby power source. The power supplying circuit is advantageous in high reliability, convenient use as well as excellent anti-static, anti-surge and anti-pulse train properties and the like.
Description
Technical field
The utility model relates to a kind of distribution power automation terminal equipment, relates in particular to a kind of power supply circuits of distribution power automation terminal equipment.
Background technology
At present, mostly the power supply of distribution power automation terminal manufacturer generally adopts directly power taking from 10kV feeder line of voltage transformer, and coordinate storage battery in support power supply power, conventionally have three kinds of supply power modes:
1. directly power taking from feeder line of distribution power automation terminal, directly for equipment provides working power and operating power.This supply power mode requires to adopt the operating mechanism and the energy storage motor that exchange, does not need storage battery, easy to maintenance.
2. directly power taking from feeder line of distribution power automation terminal, for equipment provides working power, operating power is taken from storage battery.The electric energy-stored switch that can make of switch completes once tripping operation and once group photo operation, need to repeatedly divide, close a floodgate time, uses storage battery in the time breaking down, and the battery capacity therefore needing does not need too large.
3. the working power of distribution power automation terminal and operating power are all taken from storage battery, therefore need the storage battery of larger capacity.Its advantage is: even if feeder line has a power failure, distribution power automation terminal still can normally be worked.Under this mode, should adopt the on-pole switch of DC operation mechanism and DC energy storage motor, electric shock capacity and the current interruption Capability Requirement of the auxiliary relay of this on-pole switch to distribution power automation terminal are higher.
Distribution power automation terminal long-term work is out of doors in rugged environment, and power unit is maximum parts that go wrong, and is the key that affects its reliable and stable operation.Distribution power automation terminal power supply not only will, for self electricity consumption of equipment, also will be supplied with communication module, and control loop divides, combined floodgate etc.Particularly in the time that distribution feeder breaks down, feeder line loses alternating current, distribution power automation terminal must have power supply to ensure the normal work of self, and provides the operating power of switch, divide-shut brake and communication power supply to guarantee distribution power automation terminal reporting information and reception control command timely.
At least there is following shortcoming in above-mentioned prior art:
The problem that employing direct current supply exists is: electric pressure is low, and when dividing, closing a floodgate, the impulse current of moment is large, and voltage instantaneous reduces, and easily cause distribution power automation terminal deadlock, communicating interrupt, and battery service is more difficult; Adopt dedicated transformer to be arranged on outside equipment, difficulty is not only installed, take up room large, and be easily subject to the destructions such as thunderbolt, burn into external force, damage probability is high.
Utility model content
The purpose of this utility model is to provide the power supply circuits of a kind of power supply reliability distribution power automation terminal equipment high, easy to use.
The purpose of this utility model is achieved through the following technical solutions:
The power supply circuits of distribution power automation terminal equipment of the present utility model, comprise that the power supply, air switch, external one-level power module, isolation module, the plate that connect successively carry secondary power supply module, described plate carries secondary power supply module and is connected with one or more electricity consumption modules by spacer assembly.
The technical scheme being provided by above-mentioned the utility model can be found out, the power supply circuits of the distribution power automation terminal equipment that the utility model embodiment provides, owing to comprising that the power supply, air switch, external one-level power module, isolation module, the plate that connect successively carry secondary power supply module, plate carries secondary power supply module and is connected with one or more electricity consumption modules by spacer assembly, and power supply reliability is high, easy to use.
Brief description of the drawings
The structural representation of the power supply circuits of the distribution power automation terminal equipment that Fig. 1 provides for the utility model embodiment.
Embodiment
To be described in further detail the utility model embodiment below.
The power supply circuits of distribution power automation terminal equipment of the present utility model, its preferably embodiment be:
Comprise that the power supply, air switch, external one-level power module, isolation module, the plate that connect successively carry secondary power supply module, described plate carries secondary power supply module and is connected with one or more electricity consumption modules by spacer assembly.
Described power supply comprises the first power supply and the second power supply, and described the first power supply is connected with described air switch by seamless switching device with the second power supply.
Described external one-level power module is connected with stand-by power supply.
Described stand-by power supply is storage battery.
Described spacer assembly is DC-DC spacer assembly.
Specific embodiment, as shown in Figure 1:
Adopt dual power supply and seamless switching device; Be equipped with storage battery power supply in support; Air switch carries out physical isolation to duplicate supply; External one-level power module, connects duplicate supply and storage battery, and storage battery is managed; Isolation module is used for isolating external one-level power module and secondary power supply module; Plate carries secondary power supply module for changing the power module of each electricity consumption module required voltage on pcb board; Spacer assembly is mainly realized the physical isolation of high-pressure side and low-pressure side, and each electricity consumption intermodule adopts DC-DC isolation.
The power supply circuits of distribution power automation terminal equipment of the present utility model, can carry out seamless switching to duplicate supply, improve the reliability of system power supply; Adopt storage battery to make stand-by power supply, and manage by one-level electric power source pair of module storage battery, realize the seamless switching of storage battery and duplicate supply; Adopt air switch to improve overcurrent protection, if desired physical isolation duplicate supply; High and low pressure side adopts physical isolation, and each electricity consumption intermodule adopts DC-DC isolation; Possesses good EMC/EMI performance: by modes such as I and II power module, good wirings, obtained good antistatic, surge, impulse train etc.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (5)
1. the power supply circuits of a distribution power automation terminal equipment, it is characterized in that, comprise that the power supply, air switch, external one-level power module, isolation module, the plate that connect successively carry secondary power supply module, described plate carries secondary power supply module and is connected with one or more electricity consumption modules by spacer assembly.
2. the power supply circuits of distribution power automation terminal equipment according to claim 1, it is characterized in that, described power supply comprises the first power supply and the second power supply, and described the first power supply is connected with described air switch by seamless switching device with the second power supply.
3. the power supply circuits of distribution power automation terminal equipment according to claim 2, is characterized in that, described external one-level power module is connected with stand-by power supply.
4. the power supply circuits of distribution power automation terminal equipment according to claim 3, is characterized in that, described stand-by power supply is storage battery.
5. according to the power supply circuits of the distribution power automation terminal equipment described in claim 1 to 4 any one, it is characterized in that, described spacer assembly is DC-DC spacer assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171147.2U CN203774862U (en) | 2014-04-09 | 2014-04-09 | Power supplying circuit of power distribution automation terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171147.2U CN203774862U (en) | 2014-04-09 | 2014-04-09 | Power supplying circuit of power distribution automation terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774862U true CN203774862U (en) | 2014-08-13 |
Family
ID=51292012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420171147.2U Expired - Fee Related CN203774862U (en) | 2014-04-09 | 2014-04-09 | Power supplying circuit of power distribution automation terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774862U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226808A (en) * | 2015-09-01 | 2016-01-06 | 中国航空工业集团公司上海航空测控技术研究所 | Airborne electronic product intelligent emergent is powered secondary power supply |
| CN105811571A (en) * | 2016-03-22 | 2016-07-27 | 珠海博威智能电网有限公司 | Intelligent switching dual-power-supply apparatus and operating method therefor |
| WO2018000192A1 (en) * | 2016-06-28 | 2018-01-04 | 陈锡瑜 | Capacitor trip device having automatic power switching and method therefor |
-
2014
- 2014-04-09 CN CN201420171147.2U patent/CN203774862U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226808A (en) * | 2015-09-01 | 2016-01-06 | 中国航空工业集团公司上海航空测控技术研究所 | Airborne electronic product intelligent emergent is powered secondary power supply |
| CN105811571A (en) * | 2016-03-22 | 2016-07-27 | 珠海博威智能电网有限公司 | Intelligent switching dual-power-supply apparatus and operating method therefor |
| WO2018000192A1 (en) * | 2016-06-28 | 2018-01-04 | 陈锡瑜 | Capacitor trip device having automatic power switching and method therefor |
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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: 20140813 |