CN1025581C - 反限时性过流继电器 - Google Patents

反限时性过流继电器 Download PDF

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Publication number
CN1025581C
CN1025581C CN90101854A CN90101854A CN1025581C CN 1025581 C CN1025581 C CN 1025581C CN 90101854 A CN90101854 A CN 90101854A CN 90101854 A CN90101854 A CN 90101854A CN 1025581 C CN1025581 C CN 1025581C
Authority
CN
China
Prior art keywords
circuit
mentioned
relay
resistance
operational amplifier
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.)
Expired - Lifetime
Application number
CN90101854A
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English (en)
Chinese (zh)
Other versions
CN1047766A (zh
Inventor
金仁锡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Three and electron overcurrent relay Co., Ltd.
Original Assignee
SAMWHA ENGINEERING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SAMWHA ENGINEERING Co Ltd filed Critical SAMWHA ENGINEERING Co Ltd
Publication of CN1047766A publication Critical patent/CN1047766A/zh
Application granted granted Critical
Publication of CN1025581C publication Critical patent/CN1025581C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H02H3/08—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

Landscapes

  • Relay Circuits (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
CN90101854A 1989-05-30 1990-04-06 反限时性过流继电器 Expired - Lifetime CN1025581C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1989-7270 1989-05-30
KR7270/89 1989-05-30
KR1019890007270A KR910007540B1 (ko) 1989-05-30 1989-05-30 반 한시성 과전류 릴레이

Publications (2)

Publication Number Publication Date
CN1047766A CN1047766A (zh) 1990-12-12
CN1025581C true CN1025581C (zh) 1994-08-03

Family

ID=19286581

Family Applications (1)

Application Number Title Priority Date Filing Date
CN90101854A Expired - Lifetime CN1025581C (zh) 1989-05-30 1990-04-06 反限时性过流继电器

Country Status (2)

Country Link
KR (1) KR910007540B1 (ko)
CN (1) CN1025581C (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102255294B (zh) * 2011-07-26 2013-10-30 天津大学 用于微电网的电压加速反时限过电流保护方法

Also Published As

Publication number Publication date
KR900019093A (ko) 1990-12-24
CN1047766A (zh) 1990-12-12
KR910007540B1 (ko) 1991-09-27

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
OR01 Other related matters
ASS Succession or assignment of patent right

Owner name: SANHE ELECTRON OVERCURRENT RELAY CO., LTD.

Free format text: FORMER OWNER: SAMWHA ENGINEERING CO., LTD.

Effective date: 20021018

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20021018

Address after: Seoul

Patentee after: Three and electron overcurrent relay Co., Ltd.

Address before: South Korea Gyeonggi Do

Patentee before: Samwha Engineering Co., Ltd.