EP1107274A4 - Circuit breaker with live-state information measuring instrument - Google Patents

Circuit breaker with live-state information measuring instrument

Info

Publication number
EP1107274A4
EP1107274A4 EP99925416A EP99925416A EP1107274A4 EP 1107274 A4 EP1107274 A4 EP 1107274A4 EP 99925416 A EP99925416 A EP 99925416A EP 99925416 A EP99925416 A EP 99925416A EP 1107274 A4 EP1107274 A4 EP 1107274A4
Authority
EP
European Patent Office
Prior art keywords
live
state information
circuit breaker
measuring instrument
information measuring
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.)
Withdrawn
Application number
EP99925416A
Other languages
German (de)
French (fr)
Other versions
EP1107274A1 (en
Inventor
Shigeru Kanao
Yoshihiro Hatakeyama
Takashi Kuitani
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1107274A1 publication Critical patent/EP1107274A1/en
Publication of EP1107274A4 publication Critical patent/EP1107274A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
    • H01H71/125—Automatic release mechanisms with or without manual release using a solid-state trip unit characterised by sensing elements, e.g. current transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0062—Testing or measuring non-electrical properties of switches, e.g. contact velocity
    • H01H2011/0068—Testing or measuring non-electrical properties of switches, e.g. contact velocity measuring the temperature of the switch or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

A conductor (34) is fastened to a terminal part (33) of the body (1) of a circuit breaker by means of a fastening member (35). A live-state information measuring instrument (30) includes a Hall device (38) for sensing the magnetic flux generated by the current flowing through the conductor (34) and converting it to an electric signal, a contact piece (41) provided in contact with the conductor (34) and adapted to measure the phase voltage, an electronic circuit unit (43) for arithmetically operating the phase voltage signal and the electric signal outputted from the Hall device (38), and output means (40) for outputting the results of the arithmetic operation. The live-state information measuring instrument (30) is detachably provided to the terminal part (33). Even a circuit breaker not incorporating any current transformer (18) can allow live-state information fed to a load protected by the body (1) of the circuit breaker to be indicated.
EP99925416A 1999-06-22 1999-06-22 Circuit breaker with live-state information measuring instrument Withdrawn EP1107274A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1999/003322 WO2000079554A1 (en) 1999-06-22 1999-06-22 Circuit breaker with live-state information measuring instrument

Publications (2)

Publication Number Publication Date
EP1107274A1 EP1107274A1 (en) 2001-06-13
EP1107274A4 true EP1107274A4 (en) 2004-03-03

Family

ID=14236037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99925416A Withdrawn EP1107274A4 (en) 1999-06-22 1999-06-22 Circuit breaker with live-state information measuring instrument

Country Status (5)

Country Link
EP (1) EP1107274A4 (en)
KR (1) KR20010106451A (en)
CN (1) CN1312950A (en)
TW (1) TW421811B (en)
WO (1) WO2000079554A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459213B1 (en) * 2001-12-04 2004-12-03 엘지산전 주식회사 structure combined with auxiliary divice in electric MCCB
JP2008547155A (en) * 2005-02-18 2008-12-25 エアパックス コーポレーション Device including circuit breaker with attached sensor unit
US7612972B2 (en) * 2005-09-30 2009-11-03 Rockwell Automation Technologies, Inc. Electrical contractor current sensing system and method
MY158119A (en) 2007-08-20 2016-08-30 Ls Ind Systems Co Ltd Circuit breaker with temperature sensor
KR100883042B1 (en) * 2007-08-20 2009-02-09 엘에스산전 주식회사 Air circuit breaker having temperture sensor
US7822578B2 (en) * 2008-06-17 2010-10-26 General Electric Company Systems and methods for predicting maintenance of intelligent electronic devices
CN101459018B (en) * 2008-06-20 2010-09-29 扬州新菱电器有限公司 Control and protection switch electric appliance
KR100902684B1 (en) * 2008-10-27 2009-06-15 주식회사 대륙 The electrical device with sensor for temperature
EP2282321B1 (en) * 2009-08-06 2015-10-14 ABB Schweiz AG Module for measuring the current in a conductor of a low voltage distributor
JP2011185647A (en) * 2010-03-05 2011-09-22 Keihin Corp Current sensor
ITMI20121139A1 (en) * 2012-06-28 2013-12-29 Energy Team S P A MEASUREMENT DEVICE FOR STRING CURRENTS, IN PARTICULAR IN PHOTOVOLTAIC PLANTS
BR112014032888A2 (en) * 2012-07-02 2017-06-27 Siemens Ag current transformer assembly and electrical protection device
JP6056014B2 (en) * 2012-07-24 2017-01-11 日東工業株式会社 Power distribution equipment
JP6019423B2 (en) * 2012-07-24 2016-11-02 日東工業株式会社 Adapter for current measurement
JP2014229413A (en) * 2013-05-21 2014-12-08 河村電器産業株式会社 Circuit breaker, or distribution board
US9852851B2 (en) * 2014-10-21 2017-12-26 General Electric Company Molded case circuit breaker with current sensing unit
US9658264B2 (en) 2014-12-30 2017-05-23 Energybox Ltd. Energy metering system with self-powered sensors
US9995815B2 (en) * 2014-12-30 2018-06-12 Energybox Ltd. Energy metering system and method for its calibration
US10467354B2 (en) 2014-12-30 2019-11-05 Energybox Ltd. Visualization of electrical loads
US10177542B2 (en) * 2017-02-10 2019-01-08 Hamilton Sundstrand Corporation Contactor health monitoring systems and methods
CN108802467B (en) * 2018-05-04 2023-12-29 国网浙江省电力有限公司宁波市奉化区供电公司 Iron core coil type current transformer with high detection precision and electric leakage detection device
US11129237B1 (en) * 2019-10-29 2021-09-21 Nodesimple Llc System for controlling assets via smart power switching devices
KR102269380B1 (en) * 2020-08-03 2021-06-25 (주)메티스 Thermometer for MC and temperature-monitoring system therewith

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218331A (en) * 1991-10-07 1993-06-08 General Electric Company Molded case circuit breaker with interchangeable trip circuits
WO1994027157A1 (en) * 1993-05-11 1994-11-24 Abb Strömberg Kojeet Oy Current measurement transducer based on magnetic flux density measurement

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121146A (en) * 1977-03-31 1978-10-23 Meidensha Electric Mfg Co Ltd Over current protective relay
JPS5438573A (en) * 1977-08-31 1979-03-23 Matsushita Electric Works Ltd Terminal device in circuit breaker
JPH0526683Y2 (en) * 1987-03-03 1993-07-06
JPH0216460A (en) * 1988-07-04 1990-01-19 Chubu Electric Power Co Inc Electronic watt-hour meter
JPH02121224A (en) * 1988-10-31 1990-05-09 Energy Support Corp Switch with overcurrent and earth detecting function
US5107396A (en) * 1991-06-03 1992-04-21 General Electric Company Circuit breaker combined terminal lug and connector
DE9113081U1 (en) * 1991-10-21 1991-12-12 Siemens Ag, 8000 Muenchen, De
JP2600339Y2 (en) * 1993-05-10 1999-10-12 大崎電気工業株式会社 Circuit breaker and watt-hour meter
JPH08194016A (en) * 1995-01-19 1996-07-30 Fuji Electric Co Ltd Electric current sensing device
JP3106977B2 (en) * 1995-11-14 2000-11-06 富士電機株式会社 Circuit breaker

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218331A (en) * 1991-10-07 1993-06-08 General Electric Company Molded case circuit breaker with interchangeable trip circuits
WO1994027157A1 (en) * 1993-05-11 1994-11-24 Abb Strömberg Kojeet Oy Current measurement transducer based on magnetic flux density measurement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0079554A1 *

Also Published As

Publication number Publication date
WO2000079554A1 (en) 2000-12-28
KR20010106451A (en) 2001-11-29
TW421811B (en) 2001-02-11
EP1107274A1 (en) 2001-06-13
CN1312950A (en) 2001-09-12

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010221

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KUITANI, TAKASHI

Inventor name: HATAKEYAMA, YOSHIHIRO

Inventor name: KANAO, SHIGERU

A4 Supplementary search report drawn up and despatched

Effective date: 20040121

RIC1 Information provided on ipc code assigned before grant

Ipc: 7H 01H 71/02 B

Ipc: 7H 01H 71/12 B

Ipc: 7H 01H 83/02 B

Ipc: 7H 01H 73/12 B

Ipc: 7H 01H 73/00 A

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MITSUBISHI DENKI KABUSHIKI KAISHA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20060314