CN104201763B - AC distribution panel emergency power supply unit - Google Patents
AC distribution panel emergency power supply unit Download PDFInfo
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- CN104201763B CN104201763B CN201410483920.3A CN201410483920A CN104201763B CN 104201763 B CN104201763 B CN 104201763B CN 201410483920 A CN201410483920 A CN 201410483920A CN 104201763 B CN104201763 B CN 104201763B
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- inlet wire
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- 230000002159 abnormal effect Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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Abstract
The invention provides a kind of AC distribution panel emergency power supply unit, comprise contactor KM1 and KM2, the main contacts one side joint first via three-phase inlet wire of contactor KM1, busbar in another side joint AC distribution panel; The main contacts one side joint second road three-phase inlet wire of contactor KM2, busbar in another side joint AC distribution panel; Also comprise circuit breaker KK1 and KK2, three-phase voltage relay J Y1 and JY2 and PLC; First via three-phase inlet wire is by accessing three-phase voltage relay J Y1 after circuit breaker KK1, and the normally opened contact of three-phase voltage relay J Y1 connects an input of PLC; Second road three-phase inlet wire is by accessing three-phase voltage relay J Y2 after circuit breaker KK2, and the normally opened contact of three-phase voltage relay J Y2 connects another input of PLC.Two groups of PLC export dry contact and are connected two live wires again with after KM1 coil and KM2 coils connected in series respectively.This device when AC distribution panel two-way diverter switch breaks down by busbar in outside inlet wire access switchboard, can recover transformer station's in-line power in the short time.
Description
Technical field
The present invention relates to transformer station's Internal power system, especially a kind of AC distribution panel emergency power supply unit.
Background technology
At present, the transformer station that teams and groups are responsible for administering in Utilities Electric Co. usually has tens, and there is a set of AC system every power distribution station inside, for the power supply of power distribution station inside, such as provides air conditioner power source, power source of remote action, mains lighting supply etc.
Therefore be provided with AC distribution panel in each transformer station, AC distribution panel is configured with two-way diverter switch, for switching two-way three-phase inlet wire.Pick out multichannel loading loop from the busbar of AC distribution panel, the power supply in power distribution station is provided.
Current problems faced is, when AC distribution panel two-way diverter switch breaks down, and can not powering load in time during emergency disposal; And when AC distribution panel is transformed, be use generator for load mostly, if drop into load when generator operation is abnormal, load can be burnt out, cause unexpected even larger loss.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of AC distribution panel emergency power supply unit, when AC distribution panel two-way diverter switch breaks down, easily by the busbar in outside inlet wire access switchboard, thus can recover transformer station's in-line power in the short time.The technical solution used in the present invention is:
A kind of AC distribution panel emergency power supply unit, comprises contactor KM1 and KM2, the main contacts one side joint first via three-phase inlet wire of contactor KM1, busbar in another side joint AC distribution panel; The main contacts one side joint second road three-phase inlet wire of contactor KM2, busbar in another side joint AC distribution panel;
Also comprise circuit breaker KK1 and KK2, three-phase voltage relay J Y1 and JY2 and PLC; First via three-phase inlet wire is by accessing three-phase voltage relay J Y1 after circuit breaker KK1, and the normally opened contact of three-phase voltage relay J Y1 connects an input of PLC; Second road three-phase inlet wire is by accessing three-phase voltage relay J Y2 after circuit breaker KK2, and the normally opened contact of three-phase voltage relay J Y2 connects another input of PLC;
One group of PLC exports dry contact, a live wire in a termination first via three-phase inlet wire, one end of the coil of another termination contactor KM1, another root live wire in another termination first via three-phase inlet wire of contactor KM1 coil;
Another group of PLC exports dry contact, a live wire in a termination second road three-phase inlet wire, one end of the coil of another termination contactor KM2, another root live wire in another termination second road three-phase inlet wire of contactor KM2 coil.
Further, the three-phase inlet wire be connected also is in series with one group of fuse RD1 with the main contacts side of contactor KM1, the three-phase inlet wire be connected also is in series with another organizes fuse RD2 with the main contacts side of contactor KM2.
Further, a K switch 1 is also parallel with at one group of output dry contact two ends of PLC; Export dry contact two ends in another group of PLC and be also parallel with a K switch 2.
The invention has the advantages that: the invention provides a kind of simple and reliable AC distribution panel emergency power supply unit, can when original AC distribution panel two-way diverter switch breaks down, easily by the busbar in outside inlet wire access switchboard, replace the function of original two-way diverter switch, thus transformer station's in-line power can be recovered in the short time.
Accompanying drawing explanation
Fig. 1 is a part of electrical schematic diagram of the present invention.
Fig. 2 is another part electrical schematic diagram of the present invention.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
AC distribution panel emergency power supply unit proposed by the invention, as depicted in figs. 1 and 2, comprises contactor KM1 and KM2, the main contacts one side joint first via three-phase inlet wire of contactor KM1, busbar in another side joint AC distribution panel; The main contacts one side joint second road three-phase inlet wire of contactor KM2, busbar in another side joint AC distribution panel.
In Fig. 1, A1, B1, C1, N1 are first via three-phase inlet wire, and this road three-phase inlet wire is also in series with one group of fuse RD1; A2, B2, C2, N2 are the second road three-phase inlet wire, this road three-phase inlet wire are also in series with another group fuse RD2.A, B, C, N are the circuit of busbar in AC distribution panel.Multichannel loading loop is picked out from busbar place circuit A, B, C, N, that comprise three-phase with single-phase load circuit, be equipped with circuit breaker and indicator light (1HL ~ 10HL is indicator light) in each load circuit.
As shown in Figure 2, this AC distribution panel emergency power supply unit also comprises: circuit breaker KK1 and KK2, three-phase voltage relay J Y1 and JY2 and PLC; PLC and programmable logic controller (PLC) (ProgrammableLogicController).
The first via three-phase inlet wire A1, B1, C1 are by accessing three-phase voltage relay J Y1 after circuit breaker KK1, and the normally opened contact of three-phase voltage relay J Y1 connects an input of PLC; Second road three-phase inlet wire A2, B2, C2 is by accessing three-phase voltage relay J Y2 after circuit breaker KK2, and the normally opened contact of three-phase voltage relay J Y2 connects another input of PLC.
One group of PLC exports dry contact, namely the PLC control point 1 in Fig. 2, a live wire A1 in one termination first via three-phase inlet wire, one end of the coil of another termination contactor KM1, another root live wire C1 in another termination first via three-phase inlet wire of contactor KM1 coil.
Another group of PLC exports dry contact, namely the PLC control point 2 in Fig. 2, a live wire A2 in one termination second road three-phase inlet wire, one end of the coil of another termination contactor KM2, another root live wire C2 in another termination second road three-phase inlet wire of contactor KM2 coil.
For preventing PLC to lose efficacy, one group at PLC exports dry contact, and the two ends, PLC control point 1 namely in Fig. 2 are also parallel with a K switch 1; Export dry contact in another group of PLC, the two ends, PLC control point 2 namely in Fig. 2 are also parallel with a K switch 2.
When AC distribution panel two-way diverter switch original in transformer station breaks down, according to the circuit shown in Fig. 1 and Fig. 2, this AC distribution panel emergency power supply unit is connected busbar in two-way three-phase inlet wire and AC distribution panel respectively, just can substitute original AC distribution panel two-way diverter switch temporarily, thus ensure power supply.So just when load does not have a power failure, the fault of AC distribution panel can be got rid of.
Operation principle is: whether PLC is closed by the normally opened contact of three-phase voltage relay J Y1, JY2, can learn whether three-phase inlet wire has electricity.Can using first three-phase inlet wire in You electricity Na road is as primary supply line, another road three-phase inlet wire is as stand-by power supply circuit.
If A1, B1, C1, N1 first via three-phase inlet wire is primary supply line, then one group of PLC control point 1 exported in dry contact and Fig. 2 of PLC exports closure signal, contactor KM1 coil obtains electric, the main contacts of KM1 closes, and circuit A, B, C, N of A1, B1, C1, N1 first via three-phase inlet wire and AC distribution panel busbar is connected.Stand-by power supply line principle is identical with primary supply line principle.
K switch 1 and K2 play Non-follow control effect.When PLC breaks down inefficacy, can manually close a switch K1 or K2, and contactor KM1 coil or KM2 coil obtain electric, and connecting a road three-phase inlet wire is supply line.
Claims (3)
1. an AC distribution panel emergency power supply unit, is characterized in that: comprise contactor KM1 and contactor KM2, the main contacts one side joint first via three-phase inlet wire of contactor KM1, busbar in another side joint AC distribution panel; The main contacts one side joint second road three-phase inlet wire of contactor KM2, busbar in another side joint AC distribution panel;
Also comprise circuit breaker KK1 and circuit breaker KK2, three-phase voltage relay J Y1 and three-phase voltage relay J Y2 and PLC; First via three-phase inlet wire is by accessing three-phase voltage relay J Y1 after circuit breaker KK1, and the normally opened contact of three-phase voltage relay J Y1 connects an input of PLC; Second road three-phase inlet wire is by accessing three-phase voltage relay J Y2 after circuit breaker KK2, and the normally opened contact of three-phase voltage relay J Y2 connects another input of PLC;
One group of PLC exports dry contact, a live wire in a termination first via three-phase inlet wire, one end of the coil of another termination contactor KM1, another root live wire in another termination first via three-phase inlet wire of the coil of contactor KM1;
Another group of PLC exports dry contact, a live wire in a termination second road three-phase inlet wire, one end of the coil of another termination contactor KM2, another root live wire in another termination second road three-phase inlet wire of the coil of contactor KM2.
2. AC distribution panel emergency power supply unit as claimed in claim 1, is characterized in that:
The first via three-phase inlet wire be connected with the main contacts side of contactor KM1 is also in series with one group of fuse RD1, the second road three-phase inlet wire be connected also is in series with another organizes fuse RD2 with the main contacts side of contactor KM2.
3. AC distribution panel emergency power supply unit as claimed in claim 1, is characterized in that:
A K switch 1 is also parallel with at one group of output dry contact two ends of PLC; Export dry contact two ends in another group of PLC and be also parallel with a K switch 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483920.3A CN104201763B (en) | 2014-09-19 | 2014-09-19 | AC distribution panel emergency power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483920.3A CN104201763B (en) | 2014-09-19 | 2014-09-19 | AC distribution panel emergency power supply unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104201763A CN104201763A (en) | 2014-12-10 |
| CN104201763B true CN104201763B (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410483920.3A Expired - Fee Related CN104201763B (en) | 2014-09-19 | 2014-09-19 | AC distribution panel emergency power supply unit |
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| Country | Link |
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| CN (1) | CN104201763B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069933B (en) * | 2017-03-23 | 2023-07-25 | 山东钢铁股份有限公司 | Three-way power supply device |
| CN107181192A (en) * | 2017-06-23 | 2017-09-19 | 国网江苏省电力公司南京供电公司 | The method of AC load switching device and switching AC distribution panel in transformer station |
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| CN102931717A (en) * | 2012-11-07 | 2013-02-13 | 固铂成山(山东)轮胎有限公司 | Power supply device for control system of semi-steel NRM hydraulic vulcanizing machine |
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| CN103887874A (en) * | 2014-03-12 | 2014-06-25 | 国家电网公司 | Emergency lighting automatic switchover and alternating current default phase warning device for transformer substation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090179498A1 (en) * | 2008-01-14 | 2009-07-16 | Lathrop Todd M | Transfer switch controller providing an alternating current voltage to a generator and transfer switch including the same |
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2014
- 2014-09-19 CN CN201410483920.3A patent/CN104201763B/en not_active Expired - Fee Related
Patent Citations (9)
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| CN2305800Y (en) * | 1997-08-07 | 1999-01-27 | 何成吉 | Double electric power supply non-contact automatic changing-over arrangement |
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| CN101651358A (en) * | 2009-09-10 | 2010-02-17 | 安徽方兴科技股份有限公司 | Three-way power supply automatic switching line for improving service life of EPS system |
| CN101986510A (en) * | 2010-10-29 | 2011-03-16 | 莱芜钢铁股份有限公司 | Automatic emergency power supply |
| CN202586486U (en) * | 2012-04-05 | 2012-12-05 | 滁州利华电子有限公司 | Wiring circuit for two incoming wires with standby incoming wire power supply automatic switch-on and automatic recovery device |
| CN102931717A (en) * | 2012-11-07 | 2013-02-13 | 固铂成山(山东)轮胎有限公司 | Power supply device for control system of semi-steel NRM hydraulic vulcanizing machine |
| CN103311889A (en) * | 2013-06-29 | 2013-09-18 | 襄垣县树元电器有限公司 | Manual switching protection circuit for dual power supplies |
| CN103887874A (en) * | 2014-03-12 | 2014-06-25 | 国家电网公司 | Emergency lighting automatic switchover and alternating current default phase warning device for transformer substation |
| CN204156589U (en) * | 2014-09-19 | 2015-02-11 | 国家电网公司 | AC distribution panel emergency power supply unit |
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| 基于PLC控制的变频调速在矿井提升机中的应用;李金金;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑（月刊）》;20080415(第4期);第1-82页及附录1、附录2 * |
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| CN104201763A (en) | 2014-12-10 |
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Granted publication date: 20160210 Termination date: 20190919 |