CN202189095U - 三相电相序和缺相检测电路 - Google Patents

三相电相序和缺相检测电路 Download PDF

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Publication number
CN202189095U
CN202189095U CN2011203128545U CN201120312854U CN202189095U CN 202189095 U CN202189095 U CN 202189095U CN 2011203128545 U CN2011203128545 U CN 2011203128545U CN 201120312854 U CN201120312854 U CN 201120312854U CN 202189095 U CN202189095 U CN 202189095U
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China
Prior art keywords
phase
detection circuit
sequence
electricity
circuit
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Expired - Lifetime
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CN2011203128545U
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English (en)
Inventor
张暑冰
张艳军
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Jiangxi Samsung Alan Technology Co., Ltd.
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JIANGXI THREE-STAR ALAND ELECTRICAL APPARATUS Co Ltd
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Abstract

本实用新型涉及一种检测电路,尤其涉及一种三相电相序和缺相检测电路。它包括三组二极管、电阻、光耦串联而成,光耦的输出端接至微处理器。微处理器通过对光耦端的输出波形分析即可完成相序和缺相的检测。本实用新型的有益效果是,本实用新型可以实现三相电的相序和缺相的检测,并可以实现本电路的自检,电路结构简单,制造方便。

Description

三相电相序和缺相检测电路
技术领域
[0001 ] 本实用新型涉及一种检测电路,尤其涉及一种三相电相序和缺相检测电路。 背景技术
[0002] 电力的应用在工业生产和日常生活中已经占据不可缺少的地位,设备依靠三相电工作时往往要求三相电源接入的相序正确性和完整性,在很多实际应用中,人们会在使用设备前进行人工测试相序以及检查是否缺相,现有的电路复杂而且不稳定,成本高,不适宜推广应用。
发明内容
[0003] 为了克服上述缺陷,本实用新型的目的在于提供一种电路简单,制作方便、并可以实现本电路自检的三相电相序和缺相检测电路。
[0004] 为了实现上述目的,本实用新型采用如下技术方案:一种三相电相序和缺相检测电路,它包括三组二极管、电阻、光耦串联而成,光耦的输出端接至微处理器。微处理器通过对光耦端的输出波形分析即可完成相序和缺相的检测。
[0005] 本实用新型的有益效果是,本实用新型可以实现三相电的相序和缺相的检测,并可以实现本电路的自检,电路结构简单,制造方便。
附图说明
[0006] 图1为本实用新型的电路原理图。 具体实施方式
[0007] 如图1所示,一种三相电相序和缺相检测电路,它包括三组二极管1、电阻2、光耦 3串联而成,光耦3的输出端接至微处理器4。
[0008] 三相电相序检测电路由于三相电的特性,三相电接入正确后,会在光耦输出端产生有规律的方波,根据三组方波的相位差,即可判断出此时的相序;如果三相电缺相或电路中元件故障时,光耦输出端将会出现持续的高电平,而不会出现有规律的方波,微处器通过对波形的分析即可完成对三相电相序和缺相的检测。

Claims (1)

1. 一种三相电相序和缺相检测电路,其特征在于:它包括三组二极管(1)、电阻(2)、光耦(3)串联而成,光耦(3)的输出端接至微处理器(4)。
CN2011203128545U 2011-08-25 2011-08-25 三相电相序和缺相检测电路 Expired - Lifetime CN202189095U (zh)

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CN2011203128545U CN202189095U (zh) 2011-08-25 2011-08-25 三相电相序和缺相检测电路

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CN2011203128545U CN202189095U (zh) 2011-08-25 2011-08-25 三相电相序和缺相检测电路

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102739085A (zh) * 2012-06-20 2012-10-17 陕西煤业化工技术研究院有限责任公司 逆变器相序检测锁相装置及锁相和相序识别的方法
CN103308816A (zh) * 2013-05-24 2013-09-18 康力电梯股份有限公司 一种三相交流电错、断相检测电路及其检测方法
CN106018985A (zh) * 2016-05-17 2016-10-12 深圳市思达仪表有限公司 三相电能表电压逆相序的检测方法及其系统
CN106199225A (zh) * 2016-06-28 2016-12-07 苏州汇川技术有限公司 缺相检测电路

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102739085A (zh) * 2012-06-20 2012-10-17 陕西煤业化工技术研究院有限责任公司 逆变器相序检测锁相装置及锁相和相序识别的方法
CN102739085B (zh) * 2012-06-20 2014-07-02 陕西煤业化工技术研究院有限责任公司 逆变器锁相和相序识别的方法
CN103308816A (zh) * 2013-05-24 2013-09-18 康力电梯股份有限公司 一种三相交流电错、断相检测电路及其检测方法
CN106018985A (zh) * 2016-05-17 2016-10-12 深圳市思达仪表有限公司 三相电能表电压逆相序的检测方法及其系统
CN106018985B (zh) * 2016-05-17 2019-04-02 深圳市思达仪表有限公司 三相电能表电压逆相序的检测方法及其系统
CN106199225A (zh) * 2016-06-28 2016-12-07 苏州汇川技术有限公司 缺相检测电路
CN106199225B (zh) * 2016-06-28 2019-03-22 苏州汇川技术有限公司 缺相检测电路

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Assignee: JIANGXI THREE-STAR ALAND ELECTRIC APPLIANCE CO., LTD.

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Denomination of utility model: Circuit for detecting three-phase electricity phase sequence and open phase

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Address after: 330096 Nanchang high tech Development Zone, Jiangxi high tech Road, No. 18, high tech Venture Park, building, room 603,

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