CN1815252A - 接地故障断路器寿命终止检测保护方法及其电路 - Google Patents
接地故障断路器寿命终止检测保护方法及其电路 Download PDFInfo
- Publication number
- CN1815252A CN1815252A CNA2005101327721A CN200510132772A CN1815252A CN 1815252 A CN1815252 A CN 1815252A CN A2005101327721 A CNA2005101327721 A CN A2005101327721A CN 200510132772 A CN200510132772 A CN 200510132772A CN 1815252 A CN1815252 A CN 1815252A
- Authority
- CN
- China
- Prior art keywords
- dropout
- fault
- resistance
- ground
- square
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
- H02H3/334—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control
- H02H3/335—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control the main function being self testing of the device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
Abstract
Description
Claims (12)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2005101327721A CN1328591C (zh) | 2005-12-26 | 2005-12-26 | 接地故障断路器寿命终止检测保护方法及其电路 |
US11/588,046 US7268559B1 (en) | 2005-12-26 | 2006-10-26 | Intelligent life testing methods and apparatus for leakage current protection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2005101327721A CN1328591C (zh) | 2005-12-26 | 2005-12-26 | 接地故障断路器寿命终止检测保护方法及其电路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1815252A true CN1815252A (zh) | 2006-08-09 |
CN1328591C CN1328591C (zh) | 2007-07-25 |
Family
ID=36907533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2005101327721A Active CN1328591C (zh) | 2005-12-26 | 2005-12-26 | 接地故障断路器寿命终止检测保护方法及其电路 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7268559B1 (zh) |
CN (1) | CN1328591C (zh) |
Cited By (4)
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CN101144848B (zh) * | 2007-06-28 | 2010-09-29 | 天津市百利电气有限公司 | 多功能综合寿命试验台及其控制方法 |
CN103630831A (zh) * | 2012-08-29 | 2014-03-12 | 上海宝钢工业技术服务有限公司 | 接地方向保护继电器的校验系统 |
CN104655919A (zh) * | 2015-01-14 | 2015-05-27 | 中国计量科学研究院 | 一种单磁芯准数字式直流大电流传感器 |
CN106932711A (zh) * | 2015-12-30 | 2017-07-07 | 无锡市晶源微电子有限公司 | 自测接地故障断路器及双向接地故障模拟方法 |
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CN101144848B (zh) * | 2007-06-28 | 2010-09-29 | 天津市百利电气有限公司 | 多功能综合寿命试验台及其控制方法 |
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CN104655919A (zh) * | 2015-01-14 | 2015-05-27 | 中国计量科学研究院 | 一种单磁芯准数字式直流大电流传感器 |
CN106932711A (zh) * | 2015-12-30 | 2017-07-07 | 无锡市晶源微电子有限公司 | 自测接地故障断路器及双向接地故障模拟方法 |
CN106932711B (zh) * | 2015-12-30 | 2019-07-26 | 无锡市晶源微电子有限公司 | 自测接地故障断路器及双向接地故障模拟方法 |
Also Published As
Publication number | Publication date |
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CN1328591C (zh) | 2007-07-25 |
US20070164750A1 (en) | 2007-07-19 |
US7268559B1 (en) | 2007-09-11 |
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