CN202550659U - Change-over switch electrical device - Google Patents

Change-over switch electrical device Download PDF

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Publication number
CN202550659U
CN202550659U CN2011205391836U CN201120539183U CN202550659U CN 202550659 U CN202550659 U CN 202550659U CN 2011205391836 U CN2011205391836 U CN 2011205391836U CN 201120539183 U CN201120539183 U CN 201120539183U CN 202550659 U CN202550659 U CN 202550659U
Authority
CN
China
Prior art keywords
switching
power supply
power
controller
interlocker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011205391836U
Other languages
Chinese (zh)
Inventor
李菁钰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI FANGTONG ELECTRICAL TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
SHANGHAI FANGTONG ELECTRICAL TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI FANGTONG ELECTRICAL TECHNOLOGY DEVELOPMENT Co Ltd filed Critical SHANGHAI FANGTONG ELECTRICAL TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN2011205391836U priority Critical patent/CN202550659U/en
Application granted granted Critical
Publication of CN202550659U publication Critical patent/CN202550659U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a change-over switch electrical device which is characterized in that the device is composed of a controller, an interlocker, and at least two power supply circuits which are arranged in an electrical device box. The controller and the interlocker are connected with the two power supply circuits respectively. Each power supply circuit is composed of a switching device which is provided with a short circuit protector. One terminal of the switching device becomes an A input terminal of one power supply after being connected with one short circuit protector, and one terminal of the other switching device becomes a B input terminal of the other power supply after being connected with the other short circuit protector. The other terminals of the two switching devices are a D output terminal and an E output terminal respectively. The controller is connected with the mains sides of the two switching devices to acquire signals of the two power supply circuits, and then drives the switching devices to carry out the power supply conversion. The interlocker is connected with the two switching devices, so the two switching devices can not be closed at the same time. Compared with the prior art, the reliability of the power supply conversion is high, the main circuits are independent, so the change-over switch electrical device is suitable for the power supply of important loads in various power distribution systems.

Description

A kind of transfer switching equipment device
Technical field
The utility model relates to low-tension switch electric appliance, specifically a kind of transfer switching equipment device that is used for low voltage equipment.
Background technology
At present; Important power consumption equipment such as fire hydrant pump, spray pump, smoke exhaust fan, Fire lift, emergency lighting and data center server etc. need two power supply power supplies at least; So that these power consumption equipments continue to have the power supply guarantee, guarantee power consumption equipment safety, reliability service.
The transfer switching equipment of prior art (TSE) is generally two power inputs and an output, and two power inputs connect two independent current sources respectively, exports the termination load or connects load through distribution system for one.Under the normal condition: a power supply is the load power supply; Another power backup; When a supply voltage is below or above set point and frequency is higher or lower than set point, another power source voltage is normal with frequency simultaneously, and controller drives TSE automatically switches to another power supply with a power supply and supplies power for load.Because two power supplys of above-mentioned TSE have only used a public output port; And TSE is in a housing; Two power supplys can influence each other under bigger fault current; Be that fault, maintenance or maintenance all can cause load to have a power failure, safe and reliable power source conversion can not be provided, exist the hidden danger of safe power supply.
The utility model content
The purpose of the utility model is a kind of transfer switching equipment device that designs to the deficiency of prior art; Adopt at least two separate main circuits; Two independent current sources through controller and interlock will insert are received on the load respectively; Realize the reliable conversion of two power supplys, the continuity that high reliability is provided and important load is supplied power especially is fit to the power supply of important load in the various power supply-distribution systems.
The purpose of the utility model is achieved in that a kind of transfer switching equipment device; Be characterized in that this device is made up of controller, interlocker and two power circuits of being arranged in the electrical equipment box at least; Controller is connected with at least two power circuits respectively with interlocker; Power circuit by or the device for switching of establishing short-circuit protector constitute; One end of one device for switching be the A input of a power supply after a short-circuit protective device is connected, an end of another device for switching is connected the back and is the B input of another power supply with another short-circuit protective device, the other end of two device for switching is respectively D output and E output; Controller is connected with two device for switching mains sides, gathers two power circuit signals and carries out power source conversion with driving switch electrical equipment; Interlocker is connected with two device for switching, makes two device for switching closure simultaneously.
Said two power circuits are to be separately positioned in the individual compartment of electrical equipment box.
Said device for switching is circuit breaker, contactor, isolating switch or control and protection switch electrical equipment (CPS).
The A of said two power supplys, B input and D, E output are four Wiring ports that are separately positioned on the electrical equipment box.
It is high that the utility model compared with prior art has the power source conversion reliability, and separate main circuit is independent of each other, and especially is fit to the power supply of important load in the various power supply-distribution systems.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model circuit diagram
Embodiment
Consult accompanying drawing 1; The utility model is made up of controller 5, interlocker 6 and two power circuits 8 of being arranged in the electrical equipment box at least; Two power circuits 8 are for to be separately positioned in the individual compartment of electrical equipment box; Form separately compartment or passage, electric power and thermal effect are limited in the compartment during short circuit, prevent that fault from expanding another compartment or passage to; Controller 5 is connected with at least two power circuits 8 respectively with interlocker 6; Power circuit 8 by or the device for switching 4 of establishing short-circuit protector 3 constitute; Device for switching 4 is circuit breaker, contactor, isolating switch or control and protection switch electrical equipment (CPS); One end of one device for switching 4 be the A input 1 of a power supply after a short-circuit protector 3 is connected; The other end that after one end of another device for switching 4 is connected with another short-circuit protector 3 is B input 2, two device for switching 4 of another power supply is respectively D output 11 and E output 12; The A input 1 of two power supplys, B input 2 and D output 11, E output 12 are for being separately positioned on four Wiring ports on the electrical equipment box; Controller 5 is connected with two device for switching, 4 mains sides, gathers two power circuits, 8 signals and carries out power source conversion with driving switch electrical equipment 4; Interlocker 6 is connected with two device for switching 4, makes two device for switching 4 closure simultaneously.
Consult accompanying drawing 2; The utility model is work like this: this inserts A input 1 with main power source, and stand-by power supply inserts B input 2, and D output 11 is received load side respectively with E output 12; During operate as normal: two short-circuit protectors 3 are connected, and promptly QA1 and QA2 are closed; Two device for switching 4 make two device for switching 4 can only connect a power circuit 8 by interlocker 6 interlockings, and promptly MC1 and MC2 are by the LS interlocking, and MC1 connects, and MC2 just breaks off; Voltage or the frequency that collects main power source when controller 5 drives another switch 4 immediately when exceeding standard and carries out power source conversion, continues as the load power supply by stand-by power supply, and promptly MC1 breaks off; MC2 is closed, if stand-by power supply is undesired, then controller 5 can not drive another switch 4 and carries out power source conversion; Be that C does not allow MC2 closed; Otherwise MC2 connects, and MC1 is in stand-by state; Undesired and the main power source of stand-by power supply just often, controller 5 breaks off another device for switching 4, only connects a device for switching 4, promptly C breaks off MC2 and connects MC1 simultaneously, continues as the load power supply by MC1.For the TSE of CB level, MC1 and MC2 have short-circuit protection function, needn't add short-circuit protection QA1 and QA2 in addition.
More than just the utility model being further described, is not in order to the restriction this patent, and all is that the utility model equivalence is implemented, and all should be contained within the claim scope of this patent.

Claims (4)

1. transfer switching equipment device; It is characterized in that this device is made up of the controller (5), interlocker (6) and two power circuits (8) that are arranged in the electrical equipment box at least; Controller (5) is connected with at least two power circuits (8) respectively with interlocker (6); Power circuit (8) by or the device for switching (4) of establishing short-circuit protector (3) constitute; One end of one device for switching (4) be the A input (1) of a power supply after a short-circuit protective device (3) is connected; One end of another device for switching (4) is connected the back and is that the B input (2) of another power supply, the other end of two device for switching (4) are respectively D output (11) and E output (12) with another short-circuit protective device (3); Controller (5) is connected with two device for switching (4) mains side, gathers two power circuits (8) signal and carries out power source conversion with driving switch electrical equipment (4); Interlocker (6) is connected with two device for switching (4), makes two device for switching (4) closure simultaneously.
2. according to the said transfer switching equipment device of claim 1, it is characterized in that said two power circuits (8) are for to be separately positioned in the individual compartment of electrical equipment box.
3. according to the said transfer switching equipment device of claim 1, it is characterized in that said device for switching (4) is circuit breaker, contactor, isolating switch or control and protection switch electrical equipment.
4. according to the said transfer switching equipment device of claim 1, it is characterized in that A input (1), B input (2) and D output (11), the E output (12) of said two power supplys is to be separately positioned on four Wiring ports on the electrical equipment box.
CN2011205391836U 2011-12-21 2011-12-21 Change-over switch electrical device Expired - Fee Related CN202550659U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205391836U CN202550659U (en) 2011-12-21 2011-12-21 Change-over switch electrical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205391836U CN202550659U (en) 2011-12-21 2011-12-21 Change-over switch electrical device

Publications (1)

Publication Number Publication Date
CN202550659U true CN202550659U (en) 2012-11-21

Family

ID=47171227

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205391836U Expired - Fee Related CN202550659U (en) 2011-12-21 2011-12-21 Change-over switch electrical device

Country Status (1)

Country Link
CN (1) CN202550659U (en)

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121121

Termination date: 20171221