CN105429096A - 一种电表过流保护方法及过流保护电路 - Google Patents
一种电表过流保护方法及过流保护电路 Download PDFInfo
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- CN105429096A CN105429096A CN201510956849.0A CN201510956849A CN105429096A CN 105429096 A CN105429096 A CN 105429096A CN 201510956849 A CN201510956849 A CN 201510956849A CN 105429096 A CN105429096 A CN 105429096A
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- Prior art keywords
- ammeter
- current
- load
- resistance
- sampling resistor
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- 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
- H02H3/08—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 excess current
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- Measurement Of Current Or Voltage (AREA)
Abstract
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Claims (9)
Priority Applications (1)
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CN201510956849.0A CN105429096B (zh) | 2015-12-18 | 2015-12-18 | 一种电表过流保护方法及过流保护电路 |
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CN201510956849.0A CN105429096B (zh) | 2015-12-18 | 2015-12-18 | 一种电表过流保护方法及过流保护电路 |
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CN105429096A true CN105429096A (zh) | 2016-03-23 |
CN105429096B CN105429096B (zh) | 2018-05-15 |
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CN201510956849.0A Active CN105429096B (zh) | 2015-12-18 | 2015-12-18 | 一种电表过流保护方法及过流保护电路 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109149514A (zh) * | 2018-08-21 | 2019-01-04 | 广东安居宝数码科技股份有限公司 | 电源的输出保护电路及控制方法、楼宇对讲机 |
CN109217272A (zh) * | 2018-11-07 | 2019-01-15 | 东莞铭普光磁股份有限公司 | 一种apd光模块及其保护电路与保护方法 |
CN110275058A (zh) * | 2019-06-20 | 2019-09-24 | 华立科技股份有限公司 | 智能电能表的通信模块过载识别防护电路和方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101598746A (zh) * | 2008-06-05 | 2009-12-09 | 上海复旦微电子股份有限公司 | 用于电能表的防窃电计量电路 |
CN103904611A (zh) * | 2012-12-26 | 2014-07-02 | 苏州工业园区新宏博通讯科技有限公司 | 多路电能表及其过流保护电路 |
CN204188680U (zh) * | 2014-11-05 | 2015-03-04 | 国电南瑞三能电力仪表(南京)有限公司 | 一种具有用电安全保护功能的电能表 |
CN104569520A (zh) * | 2013-10-11 | 2015-04-29 | 南京欧格节能科技有限公司 | 一种基于单片机的多功能电能表 |
CN204514991U (zh) * | 2015-03-30 | 2015-07-29 | 杭州力控科技有限公司 | 一种智能电表 |
-
2015
- 2015-12-18 CN CN201510956849.0A patent/CN105429096B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101598746A (zh) * | 2008-06-05 | 2009-12-09 | 上海复旦微电子股份有限公司 | 用于电能表的防窃电计量电路 |
CN103904611A (zh) * | 2012-12-26 | 2014-07-02 | 苏州工业园区新宏博通讯科技有限公司 | 多路电能表及其过流保护电路 |
CN104569520A (zh) * | 2013-10-11 | 2015-04-29 | 南京欧格节能科技有限公司 | 一种基于单片机的多功能电能表 |
CN204188680U (zh) * | 2014-11-05 | 2015-03-04 | 国电南瑞三能电力仪表(南京)有限公司 | 一种具有用电安全保护功能的电能表 |
CN204514991U (zh) * | 2015-03-30 | 2015-07-29 | 杭州力控科技有限公司 | 一种智能电表 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109149514A (zh) * | 2018-08-21 | 2019-01-04 | 广东安居宝数码科技股份有限公司 | 电源的输出保护电路及控制方法、楼宇对讲机 |
CN109217272A (zh) * | 2018-11-07 | 2019-01-15 | 东莞铭普光磁股份有限公司 | 一种apd光模块及其保护电路与保护方法 |
CN110275058A (zh) * | 2019-06-20 | 2019-09-24 | 华立科技股份有限公司 | 智能电能表的通信模块过载识别防护电路和方法 |
Also Published As
Publication number | Publication date |
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CN105429096B (zh) | 2018-05-15 |
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CB03 | Change of inventor or designer information |
Inventor after: Yang Zhi Inventor before: Yang Zhi Inventor before: Ma Hong Inventor before: Chen Aihua |
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CB03 | Change of inventor or designer information | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20180329 Address after: HOLLEY Technology Park No. 181 310023 Hangzhou city Zhejiang District of Yuhang province Wuchang Street Wuchang Avenue Applicant after: HOLLEY METERING LIMITED Address before: Green Ting Road Yuhang District Cang Qian street of Hangzhou city Zhejiang province 310023 No. 1 Building 1 room 179 Applicant before: HANGZHOU YIJU ELECTRONIC TECHNOLOGY CO., LTD. |
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Effective date of registration: 20210707 Address after: No.258 longfengqiao, Beibei District, Chongqing 400799 Patentee after: CHONGQING HUAHONG INSTRUMENT Co.,Ltd. Address before: Huali science and Technology Park, 181 Wuchang Avenue, Wuchang Street, Yuhang District, Hangzhou City, Zhejiang Province, 310023 Patentee before: Holley Technology Co.,Ltd. |
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