CN202918048U - Automatic transfer switching equipment - Google Patents

Automatic transfer switching equipment Download PDF

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Publication number
CN202918048U
CN202918048U CN2012205536897U CN201220553689U CN202918048U CN 202918048 U CN202918048 U CN 202918048U CN 2012205536897 U CN2012205536897 U CN 2012205536897U CN 201220553689 U CN201220553689 U CN 201220553689U CN 202918048 U CN202918048 U CN 202918048U
Authority
CN
China
Prior art keywords
power supply
contactor
switch
live wire
contacts
Prior art date
Application number
CN2012205536897U
Other languages
Chinese (zh)
Inventor
张岚
鲁贯仓
裵勇
Original Assignee
河南中烟工业有限责任公司
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Filing date
Publication date
Application filed by 河南中烟工业有限责任公司 filed Critical 河南中烟工业有限责任公司
Priority to CN2012205536897U priority Critical patent/CN202918048U/en
Application granted granted Critical
Publication of CN202918048U publication Critical patent/CN202918048U/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems

Abstract

The utility model discloses an automatic transfer switching equipment. The automatic transfer switching equipment comprises a contactor, a relay, a switch and a resistor. The contactor comprises three sets of contacts. Each set of contacts comprises a movable contact and two stationary contacts, wherein the two stationary contacts in each set of contacts are used to connect the live wire end of a frequently-used power supply and the live wire end of a standby power supply respectively, and the movable contact in each set of contacts is used to connect one end of the live wire end of a load power supply. One end of the coil of the contactor is connected with the live wire end of the standby power supply through the switch, and the other end of the coil of the contactor is connected at the null line end of the frequently-used power supply through the resistor. One end of the coil of the relay is connected at the live wire end of the frequently-used power supply, the other end of the coil of the relay is connected at the null line end of the frequently-used power supply, and the normally-closed contact of the contactor is connected in parallel at two ends of the switch. According to the utility model, advantages of simple circuit structure, low failure rate and low cost can be realized, wherein the cost is only 30% of the cost of existing automatic transfer switching equipment. The three electrical components have the advantage of long service life, and the contactor only has two states including the switch-on state and the switch-off state, so the advantage of high reliability can be realized.

Description

A kind of double power supply automatic transfer switch
Technical field
The utility model relates to a kind of change over switch, relates in particular to a kind of double power supply automatic transfer switch.
Background technology
Double power supply automatic transfer switch is called for short ATSE, has experienced four developing stage in China at present, i.e. two contact types, two circuit breaker types, excitation-type dedicated convert switch and electrodynamic type dedicated convert switch.The shortcomings such as two contact type change over switches are the first generation, are the dual-power transfer switchs that China produces the earliest, and it is the simple and easy power supply that is formed by two contactor overlap joints, and this device is unreliable because of mechanical interlocking, power consumption is large, thereby fewer and feweri employing in engineering.
Two breaker type change over switches are the second generation; the CB level ATSE that namely mentions in China's national standard and the IEC standard, it is to be formed by two the Circuit-Breaker Reformations, other joins mechanical interlocks; can have short circuit or excess current protective function, but have equally the insecure problem of mechanical interlocking.
The special-purpose conversion of excitation-type switch is the third generation, and it is to add the single unit system that controller consists of by the excitation-type contactor, and mechanical interlocking is reliable, and conversion produces attraction by solenoid and comes driving switch, and speed is fast.But this transducer is the circuit board controller, and the long-time running of electronic circuit is easily aging, the measured normal use of matter 5 or six years, poor use three or five months.So reliability is low, and maintenance cost is high.
Electrodynamic type dedicated convert switch was the 4th generation, was PC level ATSE, and its main body is composite isolating switch, is the electromechanical device for switching, and conversion is by motor-driven, and conversion is steady and speed is fast, and has 0 bit function.But its complex structure, cost is high, thus range of application is limited to.
The utility model content
The purpose of this utility model provides a kind of double power supply automatic transfer switch, makes to load under the duplicate supply pattern automatically to have selected electric power supply.And when duplicate supply has electricity, also can manually carry out the switching of power supply.
The utility model adopts following technical proposals:
The utility model discloses a kind of double power supply automatic transfer switch, comprise contactor, relay and switch, described contactor includes three groups of contacts, described every group of contact comprises a moving contact and two fixed contacts, two fixed contacts in described every group are respectively applied to connect an end of the live wire end of the end of live wire end of power supply commonly used and stand-by power supply, described moving contact is used for an end of the live wire end of connection load power source, one end of described contactor coil connects the live wire end of stand-by power supply by switch, the other end is connected to the zero line side of power supply commonly used, one end of described relay coil is connected to power firestreak end commonly used, the other end is connected to the zero line side of power supply commonly used, and the normally-closed contact of described contactor is connected in parallel on the two ends of switch.
Be connected with resistance between the other end of described contactor coil and the zero-power line end commonly used.
Described contactor is three-phase contactor.
The utility model is by a relay, a switch and a contactor consist of, do manual selection by switch, form automatic switch-over circuit by relay and contactor, make system automatically select have circuit to power, the utility model is simple in structure, cost performance is high, be widely used in skyscraper, the residential quarter, hospital, the airport, harbour, fire-fighting, metallurgical, chemical industry, weaving waits and not to allow the important place that has a power failure, realize that unattended operation is powered continuously and cost is very low, only has 30% of existing duplicate supply price, three electric elements life-spans are very long, contactor and only have the break-make two states, and reliability is very high.
Description of drawings
Fig. 1 is the utility model electrical block diagram.
Embodiment
As shown in Figure 1, the utility model comprises contactor KM, relay K A, switch S B and resistance R 1, described contactor includes three groups of contacts, described every group of contact comprises a moving contact and two fixed contacts, namely first group of contact comprises moving contact KM1, the first fixed contact KM11, the second fixed contact KM12, second group of contact comprises moving contact KM2, the 3rd fixed contact KM21, the 4th fixed contact KM22, the 3rd group of contact comprises moving contact KM3, the 5th fixed contact KM31, the 6th fixed contact KM32, two fixed contacts in described every group are respectively applied to connect an end of the live wire end of the end of live wire end of power supply commonly used and stand-by power supply, namely the first fixed contact KM11l connects power firestreak end A1 commonly used, the second fixed contact KM12 connects power firestreak end A2 commonly used, the 3rd fixed contact KM21 connects power firestreak end B1 commonly used, the 4th fixed contact KM22 connects stand-by power supply live wire end B2, the 5th fixed contact KM31 connects power firestreak end C1 commonly used, the 6th fixed contact KM32 connects stand-by power supply live wire end C2, described moving contact be used for to connect an end of the live wire end of load power source, and namely first, second, the 3rd moving contact connects respectively the live wire end A of load power source, B, C.Coil one end of contactor KM connects the live wire end A2 of stand-by power supply power supply by switch S B, the other end is connected to the zero line side N1 of power supply commonly used by resistance R 1, one end of described relay K A coil is connected to power firestreak end A1 commonly used, the other end is connected to the zero line side N1 of power supply commonly used, and the normally-closed contact KA1 of described relay K A is connected in parallel on switch S B two ends.Described contactor KM is three-phase contactor.
During use, the zero line side N1 of power supply commonly used and the zero line side N2 of stand-by power supply are connected the zero line side N of load circuit simultaneously.
Which in the normal operation, when two groups of power supplys have electricity, can power by manual adjustments switch S B choice for use group power supply;
When switch S B is closed, the coil conducting of contactor KM, then three moving contacts are then closed simultaneously, and namely the first moving contact KM1 connects the second fixed contact KM12, and the second moving contact KM2 connects the 4th fixed contact KM22, and the 3rd moving contact connects the 6th fixed contact KM32.This timer uses stand-by power supply A2, B2, C2 that load circuit is powered,
When switch S B disconnects, the coil blackout of contactor KM, then three moving contacts are then opened simultaneously, and namely the first moving contact KM1 connects the first fixed contact KM11, and the second moving contact KM2 connects the 3rd fixed contact KM21, and the 3rd moving contact connects the 5th fixed contact KM31.Then use power supply A2, B2 commonly used, C2 that load circuit is powered.
When only having power supply A1 commonly used, B1, when C1 has electricity, because the coil of relay K A gets electric, the normally-closed contact KA1 of relay K A disconnects, this moment is not because contactor KM coil has current lead-through, no matter the state of switch S B is (switch S B is equivalent to be open) how, the circle of contactor KM must not be electric, so the normally-closed contact of contactor KM all can flick, be the moving contact KM1 of contactor KM, KM2, KM3 is connected to respectively the first fixed contact KM11 simultaneously, the 3rd fixed contact KM21, the 5th fixed contact KM31, this moment, dual power automatic transfer switching equipment used power supply commonly used that load circuit is powered.
When only have stand-by power supply A2, B2, when C2 has electricity, because relay K A coil does not have current lead-through, so the normally-closed contact KA1 of relay K A is closed, this moment, stand-by power supply had electricity, no matter the state of switch S B is (switch S B is equivalent to by short circuit) how, the coil of contactor KM gets electric, the normally-closed contact of contactor KM is closed, moving contact KM1, the KM2, the KM3 that are contactor KM are connected to respectively the second fixed contact KM12, the 4th fixed contact KM22, the 6th fixed contact KM32 simultaneously, so dual power automatic transfer switching equipment uses stand-by power supply that load circuit is powered.
Resistance R 1 described in the utility model plays metering function, and protection contactor KM and switch S B are not burnt by High Level AC Voltage.

Claims (3)

1. double power supply automatic transfer switch, it is characterized in that: comprise contactor, relay and switch, described contactor includes three groups of contacts, described every group of contact comprises a moving contact and two fixed contacts, two fixed contacts in described every group are respectively applied to connect an end of the live wire end of the end of live wire end of power supply commonly used and stand-by power supply, described moving contact is used for an end of the live wire end of connection load power source, one end of described contactor coil connects the live wire end of stand-by power supply by switch, the other end is connected to the zero line side of power supply commonly used, one end of described relay coil is connected to power firestreak end commonly used, the other end is connected to the zero line side of power supply commonly used, and the normally-closed contact of described contactor is connected in parallel on the two ends of switch.
2. double power supply automatic transfer switch according to claim 1 is characterized in that: be connected with resistance between the described contactor other end and the zero-power line end commonly used.
3. double power supply automatic transfer switch according to claim 1, it is characterized in that: described contactor is three-phase contactor.
CN2012205536897U 2012-10-26 2012-10-26 Automatic transfer switching equipment CN202918048U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012205536897U CN202918048U (en) 2012-10-26 2012-10-26 Automatic transfer switching equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012205536897U CN202918048U (en) 2012-10-26 2012-10-26 Automatic transfer switching equipment

Publications (1)

Publication Number Publication Date
CN202918048U true CN202918048U (en) 2013-05-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012205536897U CN202918048U (en) 2012-10-26 2012-10-26 Automatic transfer switching equipment

Country Status (1)

Country Link
CN (1) CN202918048U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106059055A (en) * 2016-07-01 2016-10-26 无锡韩光电器股份有限公司 Control circuit of automatic changeover switch device
CN106130165A (en) * 2016-07-01 2016-11-16 无锡韩光电器股份有限公司 The control circuit of automatic transfer switching electric appliance
CN106787143A (en) * 2016-12-29 2017-05-31 施耐德万高(天津)电气设备有限公司 Excitation-type automatic transfer switching electric appliance controller
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106059055A (en) * 2016-07-01 2016-10-26 无锡韩光电器股份有限公司 Control circuit of automatic changeover switch device
CN106130165A (en) * 2016-07-01 2016-11-16 无锡韩光电器股份有限公司 The control circuit of automatic transfer switching electric appliance
CN106130165B (en) * 2016-07-01 2018-10-23 无锡韩光电器股份有限公司 The control circuit of automatic transfer switching electric appliance
CN106787143A (en) * 2016-12-29 2017-05-31 施耐德万高(天津)电气设备有限公司 Excitation-type automatic transfer switching electric appliance controller
CN106787143B (en) * 2016-12-29 2019-10-29 施耐德万高(天津)电气设备有限公司 Excitation-type automatic transfer switching electric appliance controller
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

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C56 Change in the name or address of the patentee
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Address after: 450000 Yulin South Road, Henan, Zheng Dong, No. 16 South Road, Zhengzhou

Patentee after: China Tobacco Henan Industrial Co., Ltd.

Address before: 450000, No. 29, agricultural East Road, Jinshui District, Henan, Zhengzhou

Patentee before: China Tobacco Henan Industrial Co., Ltd.