CN204794337U - Interlock each other is thrown to double loop power supply - Google Patents
Interlock each other is thrown to double loop power supply Download PDFInfo
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- CN204794337U CN204794337U CN201520504358.8U CN201520504358U CN204794337U CN 204794337 U CN204794337 U CN 204794337U CN 201520504358 U CN201520504358 U CN 201520504358U CN 204794337 U CN204794337 U CN 204794337U
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Abstract
The utility model provides an interlock each other is thrown to double loop power supply, is including installing the interlock circuit that each other throws on mounting substrate, and the mutual interlock circuit that throws is including the main road power of the same kind and the auxiliary electrical power source that goes the same way at least, output current to load behind the series connection normally open switch on the power cord of main road power, output current to load behind the normally closed switch mouth of establishing ties respectively on auxiliary electrical power source's the power cord, it has the ac contactor who is used for controlling normally open switch and normally closed switch still to establish ties between the zero line of main road power and the live wire, normally during operation main road power is supplied power to the load, and when the outage of main road power, ac contactor outage, the normally open switch of main road power cuts off, and auxiliary electrical power source's normally closed switch closure is put through, and auxiliary electrical power source supplies power to the load, guarantees normal power consumption when having a power failure or safeguard the maintenance, has reduced UPS's use and has loaded, has lengthened its life, has reduced the maintenance cost, makes water supply system's continuity, reliability and economic benefits rise to a new height on the whole.
Description
Technical field
The utility model relates to power distribution equipment, especially a kind of for low-voltage distribution system PLC double loop power supply apparatus for fast switching.
Background technology
Energy supply run unit not only needs to ensure that the energy is uninterruptedly supplied, and when also will guarantee supply energy source, the auxiliary equipment facility such as supervisory control system runs without interruption simultaneously, thus guarantees that each link safety and steady of energy supply is reliable.
At present; operational outfit facility all can realize double loop power supply and switch supply; but such as supervisory control system, monitoring computer are most by a wherein road Energy control; when interruption maintenance, power distribution cabinet change according to the season repair and maintenance or this road power supply maintenance; operation supervise and control system just can only rely on UPS (UninterruptiblePowerSystem; uninterrupted power supply) carry out maintenance work; and UPS capacity is less; maintain System production time very limited, work when so just easily causing in stopping second road power supply, the repair and maintenance that change according to the season cleaning or overhaul not in place.In addition, the working life of UPS is not long, needs periodic maintenance and replacing, virtually too increases maintenance cost.
Utility model content
For above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of double loop power supply and throws interlock mutually, supervisory control system is powered by two-way and the above quick power switching of two-way, and the dependence breaking away from Liao Dui mono-road power supply saves the replacing maintenance cost of UPS simultaneously.
In order to solve the problems of the technologies described above, in the present invention, have employed following technical scheme:
A kind of double loop power supply throws interlock mutually, and comprise the mutual throwing interlock circuit be arranged on installation base plate, described mutual throwing interlock circuit comprises a road main road power supply and at least one road accessory power supply;
The power line of described main road power supply is connected after normal open switch and output current to load, after normally closed switch that the power line of described accessory power supply is connected respectively, output current to load;
The A.C. contactor for controlling described normal open switch and normally closed switch is also in series with between the zero line of described main road power supply and live wire.
The beneficial effect of this programme is: during normal work, main road power supply is powered to load, and when main road power cut-off, A.C. contactor power-off, the normal open switch of main road power supply cuts off, and the normally closed switch of accessory power supply is closed to be connected, and accessory power supply is powered to load.This device makes monitor operating system be completely free of dependence to main road power supply, normal electricity consumption is ensured when power failure or maintaining, conscientiously improve water supply security of operation assurance coefficient, and reduce the applied load of UPS, extend its useful life, reduce maintenance cost, make the continuity of water system, reliability and economic benefit rise to a new height on the whole.This device circuit structure is simple simultaneously, and with low cost, simple installation, effect is very remarkable.
Further, be connected with described normal open switch live wire input after the live wire serial connection main road power circuit breaker of described main road power supply, this normal open switch fire wire output end is used for being connected with load, line between described normal open switch live wire input and described main road power circuit breaker is provided with contactor node, and this contactor node is connected after described A.C. contactor and is connected with the zero line of described main road power supply.
The beneficial effect of further scheme is adopted to be: main road power circuit breaker is used for the overload protection of main road power supply.At main road power overload situation, after main road power circuit breaker disconnects, A.C. contactor quits work, and switches to accessory power supply and powers, and improves the fail safe of electricity consumption.
Further, be connected after the live wire of described accessory power supply being in series with all respectively the auxiliaries-supply circuit-breaker for overload protection with normally closed switch live wire input, this normally closed switch fire wire output end is used for being connected with load.
Adopt the beneficial effect of further scheme to be: auxiliaries-supply circuit-breaker is used for the overload protection of accessory power supply, comparatively large in accessory power supply load, namely auxiliaries-supply circuit-breaker electric current exceedes predetermined value, and auxiliaries-supply circuit-breaker disconnects and cuts off power supply.
Further, between the zero line of described main road power supply and live wire, and indicator light is in series with all respectively between the zero line of described accessory power supply and live wire.
Adopt the beneficial effect of further scheme to be: whether indicator light is used to indicate corresponding power circuit normal, this road power supply normal power supply that certain road indicator light operational representation is corresponding, if certain road indicator light extinguishes, represent this road power cut-off.
Further, described normal open switch fire wire output end is connected with the outlet terminal be arranged on described installation base plate all respectively with normally closed switch fire wire output end, described installation base plate is also provided with the PE terminal for ground connection.
Adopt the beneficial effect of further scheme to be: the device of this utility model is arranged in screen, therefore set out line terminals and PE terminal and equipment in screen and the circuit that shields external equipment are connected, play the effect of electric current, voltage transmission.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, double loop power supply throws interlock mutually, comprises the mutual throwing interlock circuit be arranged on installation base plate, and this is thrown interlock circuit mutually and comprises road main road power supply 1 and a road accessory power supply 2; The power line of main road power supply 1 is connected after normal open switch KM2 and output current to load, after normally closed switch KM1 that the power line of accessory power supply 2 is connected, output current to load; Be connected with normal open switch KM2 live wire input after the live wire serial connection main road power circuit breaker QF2 of main road power supply 1, this normal open switch KM2 fire wire output end is connected with outlet terminal, line between normal open switch KM2 live wire input and main road power circuit breaker QF2 is provided with contactor node, is connected with the zero line of main road power supply 1 after this contactor node series connection A.C. contactor KM.Be connected with normally closed switch KM1 live wire input after the live wire of accessory power supply being in series with all respectively the auxiliaries-supply circuit-breaker QF1 for overload protection; the fire wire output end of this normally closed switch KM1 is also connected with outlet terminal, installation base plate is also provided with the PE terminal for ground connection.
In this embodiment, the model of A.C. contactor is CJ10, and Selection of Circuit Breakers model is the miniature circuit breaker of DZ47-16.
Operation principle: main road power supply during normal work, namely the main road power supply (i.e. 2 road power supplys) in Fig. 1 is powered to load, disconnect when main road power cut-off or main road power circuit breaker QF2 transship, A.C. contactor KM power-off, normal open switch KM2 cuts off, and the normally closed switch KM1 rapid closing of accessory power supply 2 (1 road power supply) is connected accessory power supply and powered.Whether indicator light is used to indicate corresponding power circuit normal, this road power supply normal power supply that certain road indicator light operational representation is corresponding, if certain road indicator light extinguishes, represents this road power cut-off.For preventing overload, facility circuit breaker, exceedes predetermined value power-off at electric current.
Power supply circuits circuit of the present utility model makes monitor operating system be completely free of dependence to main road power supply, normal electricity consumption is ensured when power failure or maintaining, conscientiously improve water supply security of operation assurance coefficient, and reduce the applied load of UPS, extend its useful life, reduce maintenance cost, make the continuity of water system, reliability and economic benefit rise to a new height on the whole.This device circuit is with low cost simultaneously, simple installation, and effect is very remarkable.
This utility model circuit components is few, is convenient to mounting arrangements according to demand and uses.
Between the zero line of main road power supply 1 and live wire, and be in series with indicator light L all respectively between the zero line of described accessory power supply 2 and live wire.Whether indicator light L is used to indicate corresponding power circuit normal, this road power supply normal power supply that certain road indicator light operational representation is corresponding, if certain road indicator light extinguishes, represents this road power cut-off.
Based on above-described embodiment, for ensureing the reliability of power supply, accessory power supply can select 2 roads and more than, each road accessory power supply all adopts the circuit breaker of main road Power supply to carry out switching controls, guarantee when power-off appears in a certain road or several roads accessory power supply, other accessory power supplys can normally work, and carry the stability of power supply further.Load power source way is more, and power supply reliability is also higher, certainly in order to cost control, can select the way of accessory power supply according to the actual requirements flexibly.
Above content is in conjunction with the concrete preferred implementation further description novel done to this; to those of ordinary skill in the art; can also make again and suitably deduce and improve, but under the prerequisite not departing from this novel structure thinking, all should be included in protection scope of the present invention.
Claims (5)
1. double loop power supply throws an interlock mutually, comprises the mutual throwing interlock circuit be arranged on installation base plate, it is characterized in that, described mutual throwing interlock circuit comprises road main road power supply (1) and at least one road accessory power supply (2);
The power line of described main road power supply (1) is connected after normal open switch (KM2) and output current to load, after normally closed switch (KM1) that the power line of described accessory power supply (2) is connected respectively, output current to load;
The A.C. contactor (KM) for controlling described normal open switch (KM2) and normally closed switch (KM1) is also in series with between the zero line of described main road power supply (1) and live wire.
2. double loop power supply according to claim 1 throws interlock mutually, it is characterized in that, the live wire serial connection main road power circuit breaker (QF2) of described main road power supply (1) is connected with described normal open switch (KM2) live wire input afterwards, described normal open switch (KM2) fire wire output end is connected with load, line between described normal open switch (KM2) live wire input and described main road power circuit breaker (QF2) is provided with contactor node, described contactor node described A.C. contactor (KM) of connecting is connected with the zero line of described main road power supply (1) afterwards.
3. double loop power supply according to claim 1 throws interlock mutually; it is characterized in that; on the live wire of described accessory power supply (2), series connection is connected with normally closed switch (KM1) live wire input afterwards for the auxiliaries-supply circuit-breaker (QF1) of overload protection, and described normally closed switch (KM1) fire wire output end is connected with load.
4. the double loop power supply according to the arbitrary claim of claims 1 to 3 throws interlock mutually, it is characterized in that, between the zero line of described main road power supply (1) and live wire, and be in series with indicator light all respectively between the zero line of described accessory power supply (2) and live wire.
5. the double loop power supply according to Claims 2 or 3 throws interlock mutually, it is characterized in that, described normal open switch (KM2) fire wire output end is connected with the outlet terminal be arranged on described installation base plate all respectively with normally closed switch (KM1) fire wire output end, described installation base plate is also provided with the PE terminal for ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520504358.8U CN204794337U (en) | 2015-07-13 | 2015-07-13 | Interlock each other is thrown to double loop power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520504358.8U CN204794337U (en) | 2015-07-13 | 2015-07-13 | Interlock each other is thrown to double loop power supply |
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| CN204794337U true CN204794337U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520504358.8U Active CN204794337U (en) | 2015-07-13 | 2015-07-13 | Interlock each other is thrown to double loop power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947334A (en) * | 2017-11-21 | 2018-04-20 | 广州圣力电源实业有限公司 | A kind of two-supply circuit system |
| CN108711928A (en) * | 2018-04-25 | 2018-10-26 | 华为技术有限公司 | A kind of control circuit and control method |
-
2015
- 2015-07-13 CN CN201520504358.8U patent/CN204794337U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947334A (en) * | 2017-11-21 | 2018-04-20 | 广州圣力电源实业有限公司 | A kind of two-supply circuit system |
| CN108711928A (en) * | 2018-04-25 | 2018-10-26 | 华为技术有限公司 | A kind of control circuit and control method |
| CN108711928B (en) * | 2018-04-25 | 2020-10-23 | 华为技术有限公司 | Control circuit and control method |
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