GB0820415D0 - Improvements in or relating to industrial circuit breakers (MCB) - Google Patents

Improvements in or relating to industrial circuit breakers (MCB)

Info

Publication number
GB0820415D0
GB0820415D0 GBGB0820415.8A GB0820415A GB0820415D0 GB 0820415 D0 GB0820415 D0 GB 0820415D0 GB 0820415 A GB0820415 A GB 0820415A GB 0820415 D0 GB0820415 D0 GB 0820415D0
Authority
GB
United Kingdom
Prior art keywords
mcb
relating
circuit breakers
industrial circuit
industrial
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.)
Ceased
Application number
GBGB0820415.8A
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.)
EA Technology Ltd
Original Assignee
EA Technology 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 EA Technology Ltd filed Critical EA Technology Ltd
Priority to GBGB0820415.8A priority Critical patent/GB0820415D0/en
Publication of GB0820415D0 publication Critical patent/GB0820415D0/en
Priority to GB0919271A priority patent/GB2465068A/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/18—Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0057—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to spring-shaped elements
    • 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
    • G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
    • G01R31/3272—Apparatus, systems or circuits therefor
    • G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Measuring Leads Or Probes (AREA)
GBGB0820415.8A 2008-11-07 2008-11-07 Improvements in or relating to industrial circuit breakers (MCB) Ceased GB0820415D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB0820415.8A GB0820415D0 (en) 2008-11-07 2008-11-07 Improvements in or relating to industrial circuit breakers (MCB)
GB0919271A GB2465068A (en) 2008-11-07 2009-11-03 Testing circuit breaker contact deterioration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0820415.8A GB0820415D0 (en) 2008-11-07 2008-11-07 Improvements in or relating to industrial circuit breakers (MCB)

Publications (1)

Publication Number Publication Date
GB0820415D0 true GB0820415D0 (en) 2008-12-17

Family

ID=40139567

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0820415.8A Ceased GB0820415D0 (en) 2008-11-07 2008-11-07 Improvements in or relating to industrial circuit breakers (MCB)
GB0919271A Withdrawn GB2465068A (en) 2008-11-07 2009-11-03 Testing circuit breaker contact deterioration

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0919271A Withdrawn GB2465068A (en) 2008-11-07 2009-11-03 Testing circuit breaker contact deterioration

Country Status (1)

Country Link
GB (2) GB0820415D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102645293A (en) * 2012-04-25 2012-08-22 无锡商业职业技术学院 Intelligent pressure transmitter
CN102890239B (en) * 2012-09-29 2015-12-16 上海市电力公司 A kind of detection device of mutation pressure relay
CH711007A1 (en) * 2015-04-30 2016-10-31 Kistler Holding Ag Contact force testing apparatus, use of such a contact force testing apparatus, and a method of manufacturing such a contact force testing apparatus.
CH711008A1 (en) * 2015-04-30 2016-10-31 Kistler Holding Ag Contact force testing apparatus, use of such a contact force testing apparatus, and a method of manufacturing such a contact force testing apparatus.
CN106323530B (en) * 2016-11-11 2022-02-15 江苏洛凯机电股份有限公司 Device for testing opening and closing bite force of circuit breaker
CN106679861A (en) * 2016-12-28 2017-05-17 天津汇誉丰机电科技有限公司 Intelligent pressure transmitter
EP3929604B1 (en) 2020-06-25 2024-07-31 ABB Schweiz AG A contact measurement system and method for measuring a parameter of a contact of a switchgear

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2773396B1 (en) * 1998-01-06 2000-04-07 Gec Alsthom T & D Sa TEST TOOL FOR DETERMINING THE PRESSURE OF THE CONTACT FINGERS IN A CIRCUIT BREAKER
US7616013B2 (en) * 2004-11-11 2009-11-10 Brigham Young University Micromechanical positional state sensing apparatus method and system
KR100892519B1 (en) * 2007-06-27 2009-04-10 현대자동차주식회사 Audio capacity testing apparatus for vehicle

Also Published As

Publication number Publication date
GB0919271D0 (en) 2009-12-16
GB2465068A (en) 2010-05-12

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)