GB2244396B - Electrical protection devices - Google Patents

Electrical protection devices

Info

Publication number: GB2244396B
Authority: GB; United Kingdom
Prior art keywords: protection devices; electrical protection; electrical; devices; protection
Prior art date: 1990-05-25
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 - Fee Related

Application number

GB9011795A

Other versions

GB2244396A (en

GB9011795D0 (en

Inventor

Joginder Sikka

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.)

Novar ED&S Ltd

Original Assignee

MK Electric 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.)

1990-05-25

Filing date

1990-05-25

Publication date

1994-02-23

1990-05-25 Application filed by MK Electric Ltd filed Critical MK Electric Ltd

1990-05-25 Priority to GB9011795A priority Critical patent/GB2244396B/en

1990-07-18 Publication of GB9011795D0 publication Critical patent/GB9011795D0/en

1991-05-22 Priority to PCT/GB1991/000805 priority patent/WO1991019339A1/en

1991-05-22 Priority to AU78676/91A priority patent/AU7867691A/en

1991-11-27 Publication of GB2244396A publication Critical patent/GB2244396A/en

1994-02-23 Application granted granted Critical

1994-02-23 Publication of GB2244396B publication Critical patent/GB2244396B/en

2010-05-25 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
- 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
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Emergency Protection Circuit Devices (AREA)

GB9011795A 1990-05-25 1990-05-25 Electrical protection devices Expired - Fee Related GB2244396B (en)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
GB9011795A GB2244396B (en)	1990-05-25	1990-05-25	Electrical protection devices
PCT/GB1991/000805 WO1991019339A1 (en)	1990-05-25	1991-05-22	Electrical protection devices
AU78676/91A AU7867691A (en)	1990-05-25	1991-05-22	Electrical protection devices

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB9011795A GB2244396B (en)	1990-05-25	1990-05-25	Electrical protection devices

Publications (3)

Publication Number	Publication Date
GB9011795D0 GB9011795D0 (en)	1990-07-18
GB2244396A GB2244396A (en)	1991-11-27
GB2244396B true GB2244396B (en)	1994-02-23

Family

ID=10676600

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB9011795A Expired - Fee Related GB2244396B (en)	1990-05-25	1990-05-25	Electrical protection devices

Country Status (3)

Country	Link
AU (1)	AU7867691A (en)
GB (1)	GB2244396B (en)
WO (1)	WO1991019339A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT410735B (en) *	2001-06-12	2003-07-25	Moeller Gebaeudeautomation Kg	CIRCUIT ARRANGEMENT FOR A FAULT CURRENT CIRCUIT BREAKER
US7190124B2 (en)	2005-05-16	2007-03-13	Lutron Electronics Co., Inc.	Two-wire dimmer with power supply and load protection circuit in the event of switch failure
KR101068718B1 (en) *	2009-05-21	2011-09-28	엘에스산전 주식회사	Abnormal current detection circuit for circuit breaker

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2047994A (en) *	1979-02-23	1980-12-03	Thorn Television Rentals Ltd	Current balance earth leakage circuit breaker
US4271447A (en) *	1979-07-31	1981-06-02	General Electric Company	Power supply for circuit breaker static trip unit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3555359A (en) *	1967-08-07	1971-01-12	Hubbell Inc Harvey	Circuit protective device
DE3888243D1 (en) *	1987-06-19	1994-04-14	Festo Kg	Circuit arrangement for protection against fault currents.
US4833564A (en) *	1987-09-24	1989-05-23	Siemens Energy & Automation, Inc.	Current sensing relay circuit with adjustable sensitivity and tracking test circuit
US4901219A (en) *	1987-12-22	1990-02-13	Square D Company	Plug-in power supply
US4860157A (en) *	1988-04-25	1989-08-22	General Electric Company	Molded case circuit breaker actuator-accessory module

1990
- 1990-05-25 GB GB9011795A patent/GB2244396B/en not_active Expired - Fee Related
1991
- 1991-05-22 WO PCT/GB1991/000805 patent/WO1991019339A1/en unknown
- 1991-05-22 AU AU78676/91A patent/AU7867691A/en not_active Abandoned

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2047994A (en) *	1979-02-23	1980-12-03	Thorn Television Rentals Ltd	Current balance earth leakage circuit breaker
US4271447A (en) *	1979-07-31	1981-06-02	General Electric Company	Power supply for circuit breaker static trip unit

Also Published As

Publication number	Publication date
WO1991019339A1 (en)	1991-12-12
GB2244396A (en)	1991-11-27
AU7867691A (en)	1991-12-31
GB9011795D0 (en)	1990-07-18

Publication	Publication Date	Title
GB2244398B (en)	1994-03-16	Electrical protection devices
GB2244397B (en)	1994-02-16	Electrical protection devices
EP0489287A3 (en)	1992-08-12	Protection devices for vehiculs
GB9002094D0 (en)	1990-03-28	Circuit protection arrangement
GB2244396B (en)	1994-02-23	Electrical protection devices
GB2246673B (en)	1994-11-23	Electrical cable protection
GB9006905D0 (en)	1990-05-23	Electrical plugs
EP0453729A3 (en)	1992-04-08	Electrical line
GB2255456B (en)	1995-02-01	Electrical protection devices
GB9007872D0 (en)	1990-06-06	Electric circuit protection provision
GB9001863D0 (en)	1990-03-28	Electrical devices
GB9001862D0 (en)	1990-03-28	Electrical devices
GB9021591D0 (en)	1990-11-21	Electrical cable protection
ZA947576B (en)	1995-05-15	An electrical protection device
GB9022237D0 (en)	1990-11-28	Circuit protection arrangement
GB9022236D0 (en)	1990-11-28	Circuit protection arrangement
GB9208850D0 (en)	1992-06-10	Preactive electrical circuit protection device
GB9208019D0 (en)	1992-05-27	Circuit protection devices
GR910200218U (en)	1992-10-08	Anode protection device
GB8813871D0 (en)	1988-07-13	Electrical protection device
CS250890A3 (en)	1992-02-19	Over-voltage protection circuit
ZA918349B (en)	1992-07-29	Protection device
IL100781A0 (en)	1992-09-06	Protector for electric devices
GB9217015D0 (en)	1992-09-23	Protection devices
GB9026518D0 (en)	1991-01-23	Overcurrent protection device

Legal Events

Date	Code	Title	Description
2000-04-19	746	Register noted 'licences of right' (sect. 46/1977)	Effective date: 20000328
2003-01-15	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20020525