CN204271746U - Automatic switching device of standby power supply - Google Patents
Automatic switching device of standby power supply Download PDFInfo
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- CN204271746U CN204271746U CN201420800419.0U CN201420800419U CN204271746U CN 204271746 U CN204271746 U CN 204271746U CN 201420800419 U CN201420800419 U CN 201420800419U CN 204271746 U CN204271746 U CN 204271746U
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Abstract
Automatic switching device of standby power supply, it is characterized in that: by two-way power supply, two power supply circuits are powered simultaneously, article two, after the head end of power supply circuits is connected with two-way power supply, it is all connected with contactor, circuit breaker and overload relay in turn, article two, power supply circuits end and be connected on binding post, the contactor effect mutual exclusion on two described power supply circuits.By the automatic switchover between simple logic circuit realiration duplicate supply.This standby self-closing function of power protection is complete, has short circuit, overcurrent and creepage protection function.The time that time delay for subsequent use is hauled oneself willingly into is adjustable.
Description
Technical field
The utility model belongs to the control device technical field of electrical power distribution electric installation, relates to a kind of multifunctional adaptive automatic throw-in equipment of emergency power supply.
Background technology
Automatic throw-in equipment of emergency power supply is as a kind of automatic safety device of station-service in electric power system, and the application in coal preparing plant automation control system is mainly for control system provides continual power supply guarantee system.In industrial processes, in order to ensure produce continue to carry out the normal operation with equipment, we must design a kind of way automatic switching device for standby of power supply.When circuit or power consumption equipment break down, can automatically rapidly, accurately in in-put of spare power supply power consumption equipment or equipment is switched on stand-by power supply, ensure the continuous service of industrial processes.
Utility model content
This utility model is automatic switching device of standby power supply, and it is applicable to rated operational voltage AC400V, 50Hz, the single-phase or three-phase double power-supply system of the two-way of rated current 6A-25A.Main employing circuit breaker, contactor as main element, by the automatic switchover between simple logic circuit realiration duplicate supply.This standby self-closing function of power protection is complete, has short circuit, overcurrent and creepage protection function.The time that time delay for subsequent use is hauled oneself willingly into is adjustable.
For realizing above-mentioned technical purpose, the technical scheme adopted is: automatic switching device of standby power supply, it is characterized in that: by two-way power supply, two power supply circuits are powered simultaneously, article two, after the head end of power supply circuits is connected with two-way power supply, it is all connected with contactor, circuit breaker and overload relay in turn, article two, power supply circuits end and be connected on binding post, the contactor effect mutual exclusion on two described power supply circuits.
The utility model beneficial effect is:
When wherein a road power supply occurs abnormal, the switching that another road power supply can be undertaken between power supply by a switching device, completes normal power supply to the pipeline equipment broken down, and ensure that reliability and the fail safe of power supply.When faulty line has keeped in repair, then recover normal power supply.When to there is supply line's fault next time, will again start automatic throw-in equipment of emergency power supply and complete continued power.This device has two kinds of versions, and one is power supply case structure, a kind of for installing format structure.
This utility model is provided with charged indicator light and power failure lamp etc. on the casing of device, is used for showing the operating state of duplicate supply, comprises charged, fault and input instruction for subsequent use etc.When wherein riches all the way raw fault, notify Field Force in time, to keep in repair timely faulty circuit by the instruction display of cabinet panel and alarm device.And the button of Non-follow control is provided, can handled easily personnel on site operation.
Accompanying drawing explanation
Fig. 1 is the panel schematic diagram of automatic switching device of standby power supply;
Fig. 2 is the internal structure schematic diagram of automatic switching device of standby power supply;
Fig. 3 is the circuit theory diagrams of automatic switching device of standby power supply;
In Fig. 1,1,2 is the charged indicator light of two-way power supply, and 3 is input indicator light for subsequent use, and 4 is manual operation knob.5,6 for manually booting the button of power supply.7,8 is the button manually stopping power supply.9, the 10 power failure lamps being respectively two circuits.11,12 is power supply input indicator light.
In Fig. 2,13,14 circuit breakers being respectively two-way power supply, 15,16 contactors being respectively two-way power supply, 17,18 overload relays being respectively two-way power supply.19,20 auxiliary relays being respectively two-way power supply, 21 is input relay for subsequent use, and 22 is the time-delay relay of input for subsequent use.X1 in figure, X2 are binding post.
In Fig. 3, the contactor of KM1 indication circuit 1, the contactor of KM2 indication circuit 2.SF1, SF2 are respectively the start button signal of two-way power supply, SS1, SS2 are respectively the stop button signal of two-way power supply, KH1, KH2 are respectively the trouble light signal of two-way power supply, and HR1, HR2 are respectively the charged signal of two-way power supply, and HG1, HG2 are respectively the input signal of two-way power supply.
Embodiment
as shown in Figure 1, be connected with the control structure of box house by the indicator light of panel and control button, running status, malfunction etc. that main reflection power supply is current.Meanwhile, manual ringing is transferred to box house, controls switching and the start and stop of power supply.By the index signal on panel, judge to site operation personnel intuitively, when in-put of spare power supply uses, warning Field Force keep in repair as early as possible, when maintenance completes, recovers the normal power supply pattern of power supply as early as possible.
As shown in Figure 2, this device is divided into manual mode and automated manner two kinds of modes to control, when manual mode, the contactor effect mutual exclusion of two-way power supply, then another disconnects in one of them work, the contactor then disconnected during the disconnection worked can close, thus achieves the input for subsequent use of circuit and the switching to main circuit for subsequent use.When automated manner, the time delay being controlled stand-by power supply by the time-delay relay 22 of input relay 21 for subsequent use and input for subsequent use is come into operation, and the function of automatic put-in spair power source.When a road disconnects, transmission of signal gives the time-delay relay of input relay for subsequent use and input for subsequent use, thus connects another road power supply guarantee power supply.Two kinds of modes can be operated by the front panel knob in Fig. 1.
As shown in Figure 3, when device gets to " manually " position, figure centre circle 1, circle 2 are communicated with (circle 3, circle 4 are communicated with), manually boot SF1(SF2), KM2, SS1, KH1(KM1, SS2, KH2) be normally closed node, KM1(KM2 in circuit) adhesive, circuit 1(circuit 2) normal power supply.KM1(KM2) after adhesive, HG1(HG2) indicator light is bright, indication circuit 1(circuit 2) come into operation.Charged relay K 1(K2) work, HR1(HR2) indicator light is bright, indication circuit 1(circuit 2) charged.When circuit 1(circuit 2) when breaking down, KH1(KH2) adhesive, KM1(KM2) disconnect, HY1(HY2) indicator light is bright, indication circuit 1(circuit 2) break down.As KM1(KM2) disconnect after, KM2(KM1) adhesive.Both one in order often to open node, one be normally closed node, and connects in circuit, think mutex relation, after the fault that manually boots of guarantee, another circuit normally can drop into power supply automatically.
When equipment is got to " 1 is standby with 2 ", indication circuit 1 is main circuit, and circuit 2 is stand-by circuit.When normal power supply, circle 9, circle 10 are communicated with, K1 adhesive, and SS1, KH1, KM2 are normally closed node, and KM1 works, and circuit 1 normally works, and HR1, HG1 indicator light is bright.When circuit 1 breaks down, KH1 adhesive, HY1 indicator light is bright, and indication circuit 1 breaks down.Figure centre circle 5, circle 6 are communicated with, and KM1 disconnects, and time-delay relay KT adhesive, hauls oneself willingly into relay K 3 and work, light from voted signal HG3.Circle 13, circle 14 are communicated with, and after K3 adhesive, SS2, KH2, KM1 are normally closed node, and KM2 works, and so far, circuit 2 time delay automatically starts and drops into power supply.After K2, KM2 adhesive, HR2, HG2 indicator light is bright, represents that now circuit 2 drops into power supply.
When equipment is got to " 1 uses for 2 ", indication circuit 2 is main circuit, and circuit 1 is stand-by circuit.When normal power supply, circle 15, circle 16 are communicated with, K2 adhesive, and SS2, KH2, KM1 are normally closed node, and KM2 works, and circuit 2 normally works, and HR2, HG2 indicator light is bright.When circuit 2 breaks down, KH2 adhesive, HY2 indicator light is bright, and indication circuit 2 breaks down.Figure centre circle 7, circle 8 are communicated with, and KM2 disconnects, and time-delay relay KT adhesive, hauls oneself willingly into relay K 3 and work, light from voted signal HG3.Circle 11, circle 12 are communicated with, and after K3 adhesive, SS1, KH1, KM2 are normally closed node, and KM1 works, and so far, circuit 1 time delay automatically starts and drops into power supply.After K1, KM1 adhesive, HR1, HG1 indicator light is bright, represents that now circuit 1 drops into power supply.
Claims (1)
1. automatic switching device of standby power supply, it is characterized in that: by two-way power supply, two power supply circuits are powered simultaneously, article two, after the head end of power supply circuits is connected with two-way power supply, it is all connected with contactor, circuit breaker and overload relay in turn, article two, power supply circuits end and be connected on binding post, the contactor effect mutual exclusion on two described power supply circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800419.0U CN204271746U (en) | 2014-12-18 | 2014-12-18 | Automatic switching device of standby power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800419.0U CN204271746U (en) | 2014-12-18 | 2014-12-18 | Automatic switching device of standby power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204271746U true CN204271746U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201420800419.0U Active CN204271746U (en) | 2014-12-18 | 2014-12-18 | Automatic switching device of standby power supply |
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| Country | Link |
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| CN (1) | CN204271746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571919A (en) * | 2019-10-11 | 2019-12-13 | 哈尔滨研拓科技发展有限公司 | Dual-power switching distributor |
| CN112332522A (en) * | 2020-09-09 | 2021-02-05 | 北京潞电电气设备有限公司 | Outdoor UPS running state display method and device |
-
2014
- 2014-12-18 CN CN201420800419.0U patent/CN204271746U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571919A (en) * | 2019-10-11 | 2019-12-13 | 哈尔滨研拓科技发展有限公司 | Dual-power switching distributor |
| CN112332522A (en) * | 2020-09-09 | 2021-02-05 | 北京潞电电气设备有限公司 | Outdoor UPS running state display method and device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |