CN202679059U - 交直流电源自动投切装置 - Google Patents

交直流电源自动投切装置 Download PDF

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Publication number
CN202679059U
CN202679059U CN2012202176372U CN201220217637U CN202679059U CN 202679059 U CN202679059 U CN 202679059U CN 2012202176372 U CN2012202176372 U CN 2012202176372U CN 201220217637 U CN201220217637 U CN 201220217637U CN 202679059 U CN202679059 U CN 202679059U
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China
Prior art keywords
contactor
power supply
power
switching device
automatic switching
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Expired - Fee Related
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CN2012202176372U
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English (en)
Inventor
赵全胜
康少华
王辉
王志红
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State Grid Corp of China SGCC
Zhengzhou Power Supply Co of Henan Electric Power Co
Zhengzhou Huali Information Technology Co Ltd
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Zhengzhou Power Supply Co of Henan Electric Power Co
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems 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
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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  • Keying Circuit Devices (AREA)

Abstract

本实用新型公开了一种交直流电源自动投切装置，它含有交流空气开关Q1、直流空气开关Q2，交流熔断器RD1、直流熔断器RD2，交流控制开关K1、直流控制开关K2，交流接触器KM1、直流接触器KM2，所述交流接触器KM1的常闭接点KM1-2设置在所述直流接触器KM2的电路上，所述直流接触器KM2的常闭接点KM2-2设置在所述交流接触器KM1的电路上，所述交流接触器KM1的常开接点KM1-1以及所述直流接触器KM2的常开接点KM2-1分别与照明电路连接。本实用新型采用双路电源供电，当一路电源出现故障时，另一路电源自动投入，其投切速度快，有效降低停电时间。

Description

交直流电源自动投切装置
技术领域：
本实用新型涉及一种电力照明电供电装置，特别是涉及一种交直流电源自动投切装置。 
背景技术：
随着经济的飞速发展，我国电力建设也与时俱进，在发电厂、变电站等重要场合，需要时刻保证照明电源不能中断，若交流照明电源失去，需手动切换投入直流照明电源供电，由于采用手动切换，因此需要中断一定的照明供电时间，这给生产带来一些不便。
实用新型内容：
本实用新型所要解决的技术问题是：克服现有技术的不足，提供一种结构简单、使用方便且能够自动切换电源的交直流电源自动投切装置。
本实用新型的技术方案是：交直流电源自动投切装置含有交流空气开关Q1、直流空气开关Q2，交流熔断器RD1、直流熔断器RD2，交流控制开关K1、直流控制开关K2，交流接触器KM1、直流接触器KM2，所述交流接触器KM1的常闭接点KM1-2设置在所述直流接触器KM2的电路上，所述直流接触器KM2的常闭接点KM2-2设置在所述交流接触器KM1的电路上，所述交流接触器KM1的常开接点KM1-1以及所述直流接触器KM2的常开接点KM2-1分别与照明电路连接。
使用时将空开Q1、Q2接通，然后接通K1、K2。若先接通K1，则KM1先通电吸合，其常开接点KM1-1接通，常闭接点KM1-2断开，交流电源为负载供电。此时由于KM1-2触点已断开，故KM2无法吸合，直流作为备用电源。若先接通K2，则KM2先通电吸合，其常开接点KM2-1接通，常闭接点KM2-2断开，直流电源为负载供电。此时由于KM1-1触点已断开，故KM1无法吸合，交流作为备用电源。
使用交流供电因故停电时，KM1释放，常开接点KM1-1断开，常闭接点KM1-2接通，KM2通电吸合，常开接点KM2-1接通，常闭接点KM2-2断开，由直流供电。
使用直流供电因故停电时，KM2释放，KM1通电吸合，由交流供电。该电路使用简单，可靠控制，维修方便。
KM1*、KM2*为防止KM1-1、KM2-1接点粘连，交直流电源串到一起，特串联一个接点。交流电源和直流电源上分别设置有电源指示灯。
本实用新型的有益效果是：
1、本实用新型采用双路电源供电，当一路电源出现故障时，另一路电源自动投入，其投切速度快，有效降低停电时间。
2、本实用新型双路电源上均设置电源指示灯，能够清晰的显示哪一路电在供电，便于工作人员及时对另一路电进行相应处理。
3、本实用新型设置KM1*、KM2*，能够有效防止KM1-1、KM2-1接点粘连，提高投切的准确率。
4、本实用新型结构简单、使用方便且能够自动切换电源，其适用范围广，易于推广实施，具有良好的经济效益。
附图说明：
图1为交直流电源自动投切装置的电路原理图。
具体实施方式：
实施例：参见图1，图中，1-电源指示灯，2-照明灯。
交直流电源自动投切装置含有交流空气开关Q1、直流空气开关Q2，熔断器RD1、RD2，控制开关K1、K2，交流接触器KM1、直流接触器KM2，所述交流接触器KM1的常闭接点KM1-2设置在所述直流接触器KM2的电路上，所述直流接触器KM2的常闭接点KM2-2设置在所述交流接触器KM1的电路上，所述交流接触器KM1的常开接点KM1-1以及所述直流接触器KM2的常开接点KM2-1分别与照明电路连接。
交流电源上设置有辅助交流接触器KM1*，直流电源上设置有辅助直流接触器KM2*。交流电源和直流电源上分别设置有电源指示灯1。
使用时，将Q1、Q2接通，然后接通K1、K2。若先接通K1，则KM1先通电吸合，其常开接点KM1-1接通，常闭接点KM1-2断开，交流电源为负载供电。此时由于KM1-2触点已断开，故KM2无法吸合，直流作为备用电源。若先接通K2，则KM2先通电吸合，其常开接点KM2-1接通，常闭接点KM2-2断开，直流电源为负载供电。此时由于KM1-1触点已断开，故KM1无法吸合，交流作为备用电源。
使用交流供电因故停电时，KM1释放，常开接点KM1-1断开，常闭接点KM1-2接通，KM2通电吸合，常开接点KM2-1接通，常闭接点KM2-2断开，由直流供电。
使用直流供电因故停电时，KM2释放，KM1通电吸合，由交流供电。该电路使用简单，可靠控制，维修方便。
    KM1*、KM2*为防止KM1-1、KM2-1接点粘连，交直流电源串到一起，特串联一
个接点。

Claims (3)

1.一种交直流电源自动投切装置，含有交流空气开关Q1、直流空气开关Q2，交流熔断器RD1、直流熔断器RD2，交流控制开关K1、直流控制开关K2，交流接触器KM1、直流接触器KM2，其特征是：所述交流接触器KM1的常闭接点KM1-2设置在所述直流接触器KM2的电路上，所述直流接触器KM2的常闭接点KM2-2设置在所述交流接触器KM1的电路上，所述交流接触器KM1的常开接点KM1-1以及所述直流接触器KM2的常开接点KM2-1分别与照明电路连接。
2.根据权利要求1所述的交直流电源自动投切装置，其特征是：交流电源上设置有辅助交流接触器KM1*，直流电源上设置有辅助直流接触器KM2*。
3.根据权利要求2所述的交直流电源自动投切装置，其特征是：所述交流电源和直流电源上分别设置有电源指示灯。
CN2012202176372U 2012-05-16 2012-05-16 交直流电源自动投切装置 Expired - Fee Related CN202679059U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103401305A (zh) * 2013-07-31 2013-11-20 成都电业局双流供电局 具有直流接触器的智能型通信电源切换组网系统
CN105391098A (zh) * 2015-12-11 2016-03-09 天津市威匡电气设备有限公司 一种交直流电源切换装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103401305A (zh) * 2013-07-31 2013-11-20 成都电业局双流供电局 具有直流接触器的智能型通信电源切换组网系统
CN105391098A (zh) * 2015-12-11 2016-03-09 天津市威匡电气设备有限公司 一种交直流电源切换装置

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Owner name: ZHENGZHOU HUALI INFORMATION TECHNOLOGY CO., LTD. H

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Effective date of registration: 20130814

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee after: State Grid Corporation of China

Patentee after: Zhengzhou Huali Information Technology Co., Ltd.

Patentee after: Henan Electric Power Company Zhengzhou Power Supply Branch

Address before: 450006 Huaihe Road, Henan, China, No. 9, No.

Patentee before: Henan Electric Power Company Zhengzhou Power Supply Branch

CF01 Termination of patent right due to non-payment of annual fee

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CF01 Termination of patent right due to non-payment of annual fee