CN2206512Y - Double-power-supply full-automatic switching device - Google Patents
Double-power-supply full-automatic switching device Download PDFInfo
- Publication number
- CN2206512Y CN2206512Y CN 94229815 CN94229815U CN2206512Y CN 2206512 Y CN2206512 Y CN 2206512Y CN 94229815 CN94229815 CN 94229815 CN 94229815 U CN94229815 U CN 94229815U CN 2206512 Y CN2206512 Y CN 2206512Y
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- mutually
- self
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- normally closed
- coil
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- 230000009977 dual effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 3
- 241001061264 Astragalus Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model provides a full automatic switching control equipment of dual supply, including two ac contactor, two auxiliary relay. The two intermediate relays are respectively connected with a large network power supply and a self-generating power supply, and the two power supplies are respectively connected with a load through an alternating current contactor and control a zero line of the large network power supply and a zero line of the self-generating power supply. The device utilizes the two intermediate relays to realize automatic power supply switching in a short time, is safe and reliable, and is suitable for equipment using double power supplies.
Description
The utility model relates to a kind of circuit emergency protective device, particularly relates to the full-automatic switching device shifter of a kind of duplicate supply.
Existing power supply switches the general manual switchover of adopting, and its shortcoming is that switching time is long, and misoperation easily, and dangerous can cause long-time power failure when especially unattended, especially to the quantity-produced operation as the employing manual switching, can cause damage to production.
But the purpose of this utility model is to provide a kind of full-automatic switching device shifter of duplicate supply of automatic conversioning power.
The full-automatic switching device shifter circuit of the utility model duplicate supply comprises two A.C. contactors and two auxiliary relays, and two voltmeters.Its connected mode is, an auxiliary relay is connected to big network source, another is connected to self-powered, two power supplys respectively are connected to load by an A.C. contactor, and control big network source and self-powered zero line, the normal big network source of a termination of making war of its two couple, two pairs of normally closed points of the A.C. contactor of another termination self-powered, the ac contactor coil of the big network source of this normally closed another termination of point.Equally, the auxiliary relay coil of self-powered connects self-powered, the normal termination self-powered of making war of its two couple, and normally closed point one end of two couple of the A.C. contactor of the big network source of another termination, the interchange of this normally closed another termination self-powered of point connects the device coil.
The advantage of the full-automatic switching device shifter of the utility model duplicate supply is to have realized the full-automatic fast switching of duplicate supply, is no more than 0.1 second switching time, and handover security is reliable, is suitable for having the equipment use of duplicate supply.
Describe the utility model embodiment in detail below in conjunction with accompanying drawing.
Fig. 1: the utility model circuit connection diagram
The circuit of the full-automatic switching device shifter of the utility model duplicate supply comprises two A.C. contactor KM1 and KM2, two auxiliary relay J1 and J2, two voltmeter V1 and V2.Its circuit is connected to, the big network source A of A.C. contactor KM1 input termination, B, C three-phase, A.C. contactor KM2 input termination self-powered A1, B1, C1 three-phase, the KM1 output is connected with the KM2 output, and be connected with load MS, two pairs of normal ends of making war of auxiliary relay J1 connect respectively big network source A mutually and C mutually, an end of two pairs of normally closed points of another termination KM2 of this two couple normal battle, another termination KM1 coil two ends of the normally closed point of this two couple, J1 astragal two ends connect respectively big network source B mutually with C mutually.The normal ends of making war of two couples of auxiliary relay J2 connect respectively self-powered A1 mutually with C1 mutually, this two couple normal battle of other end connects an end of two pairs of normally closed points of KM1 respectively, another termination KM2 coil two ends of the normally closed point of this two couple, J2 coil two ends connect respectively self-powered B1 mutually with C1 mutually.In addition, connect two pairs of normal ends of making war of KM1, KM2 respectively at the output of KM1, KM2, this two couple normal battle of other end inserts voltmeter V1 and V2 respectively.
The operation principle of the full-automatic switching device shifter of the utility model duplicate supply is, as long as power supply has electricity, auxiliary relay J1 and J2 get electric, and it is normal makes war closedly, and it is electric that A.C. contactor KM1 and KM2 coil are got, and KM1 and KM2 close.The mutual locking control of the normally closed point of two A.C. contactors, as long as any elder generation in the A.C. contactor gets electronic work, another promptly is lockable, and promptly is that input has electricity also can not move.After having only that A.C. contactor that obtains electricity in the ban to disconnect, another just can close.Auxiliary relay J1 and J2 are connected to power input respectively, and switching is finished automatically.
Claims (1)
1, the full-automatic switching device shifter of a kind of duplicate supply, it is characterized in that circuit is by A.C. contactor KM1 and KM2, auxiliary relay J1 and J2 constitute, its connected mode is, the big network source A of A.C. contactor MK1 input termination, B, the C three-phase, exchange contact KM2 input termination self-powered A1, B1, the C1 three-phase, the KM1 output is connected with the KM2 output, and be connected with load MS, the normal ends of making war of two couples of auxiliary relay J1 connect respectively big network source A mutually with C mutually, one end of the normal two pairs of normally closed points of another termination KM2 of making war of this two couple, another termination KM1 coil two ends of the normally closed point of this two couple, J1 coil two ends connect respectively big net current source B mutually with C mutually; The normal ends of making war of two couples of auxiliary relay J2 connect respectively self-powered A1 mutually with C1 mutually, this two couple normal battle of other end connects an end of two pairs of normally closed points of KM1 respectively, another termination KM2 coil two ends of the normally closed point of this two couple, J2 coil two ends meet self-powered B1 and C1 respectively mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94229815 CN2206512Y (en) | 1994-11-05 | 1994-11-05 | Double-power-supply full-automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94229815 CN2206512Y (en) | 1994-11-05 | 1994-11-05 | Double-power-supply full-automatic switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2206512Y true CN2206512Y (en) | 1995-08-30 |
Family
ID=33842058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94229815 Expired - Fee Related CN2206512Y (en) | 1994-11-05 | 1994-11-05 | Double-power-supply full-automatic switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2206512Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400900A (en) * | 2011-09-28 | 2012-04-04 | 上海高桥捷派克石化工程建设有限公司 | Automatic synchronizer control device based on distributed control system |
| CN103414241A (en) * | 2013-08-21 | 2013-11-27 | 山西汾西机电有限公司 | Automatic switching power supply circuit used in underground coal mine |
| CN106487091A (en) * | 2016-08-26 | 2017-03-08 | 国家电网公司客户服务中心南方分中心 | A kind of double loop power supply device of WMG |
-
1994
- 1994-11-05 CN CN 94229815 patent/CN2206512Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400900A (en) * | 2011-09-28 | 2012-04-04 | 上海高桥捷派克石化工程建设有限公司 | Automatic synchronizer control device based on distributed control system |
| CN102400900B (en) * | 2011-09-28 | 2014-07-09 | 上海高桥捷派克石化工程建设有限公司 | Automatic synchronizer control device based on distributed control system |
| CN103414241A (en) * | 2013-08-21 | 2013-11-27 | 山西汾西机电有限公司 | Automatic switching power supply circuit used in underground coal mine |
| CN106487091A (en) * | 2016-08-26 | 2017-03-08 | 国家电网公司客户服务中心南方分中心 | A kind of double loop power supply device of WMG |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |