GB2326780B - Electrical power supply circuits - Google Patents

Electrical power supply circuits

Info

Publication number
GB2326780B
GB2326780B GB9813196A GB9813196A GB2326780B GB 2326780 B GB2326780 B GB 2326780B GB 9813196 A GB9813196 A GB 9813196A GB 9813196 A GB9813196 A GB 9813196A GB 2326780 B GB2326780 B GB 2326780B
Authority
GB
United Kingdom
Prior art keywords
power supply
electrical power
supply circuits
circuits
electrical
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 - Fee Related
Application number
GB9813196A
Other versions
GB2326780A (en
GB9813196D0 (en
Inventor
Harry Stanley May
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.)
NORTHERN ELECTRIC DISTRIB Ltd
GE Grid Solutions UK Ltd
Original Assignee
NORTHERN ELECTRIC DISTRIB Ltd
Kelman 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 NORTHERN ELECTRIC DISTRIB Ltd, Kelman Ltd filed Critical NORTHERN ELECTRIC DISTRIB Ltd
Publication of GB9813196D0 publication Critical patent/GB9813196D0/en
Publication of GB2326780A publication Critical patent/GB2326780A/en
Application granted granted Critical
Publication of GB2326780B publication Critical patent/GB2326780B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/30—Staggered disconnection
    • 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
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
GB9813196A 1997-06-23 1998-06-18 Electrical power supply circuits Expired - Fee Related GB2326780B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9713230.2A GB9713230D0 (en) 1997-06-23 1997-06-23 Electrical power supply circuits

Publications (3)

Publication Number Publication Date
GB9813196D0 GB9813196D0 (en) 1998-08-19
GB2326780A GB2326780A (en) 1998-12-30
GB2326780B true GB2326780B (en) 2001-07-11

Family

ID=10814792

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9713230.2A Pending GB9713230D0 (en) 1997-06-23 1997-06-23 Electrical power supply circuits
GB9813196A Expired - Fee Related GB2326780B (en) 1997-06-23 1998-06-18 Electrical power supply circuits

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9713230.2A Pending GB9713230D0 (en) 1997-06-23 1997-06-23 Electrical power supply circuits

Country Status (1)

Country Link
GB (2) GB9713230D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105810283A (en) * 2014-10-15 2016-07-27 谢春梅 High-strength low-electrical-resistivity high-voltage transmission power cable

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2375242A (en) * 2001-05-03 2002-11-06 Alstom Protecting a section of an electrical power line
US6985784B2 (en) * 2002-02-25 2006-01-10 General Electric Company Configuring a centrally controlled circuit breaker protection system
CN105609207A (en) * 2014-11-03 2016-05-25 谢安军 High voltage transmission power cable system
ES2916348T3 (en) 2017-08-11 2022-06-30 Carrier Corp Earth Fault Location

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1446937A (en) * 1972-11-09 1976-08-18 Electricite De France Automatic systems for locating a defective portion of a feeder line of a medium voltage electrical power distribution network and for isolating the defective portion from the network
GB1537841A (en) * 1974-11-22 1979-01-04 Sprecher & Schuh Ag System for switching out a short-circuited section from a closed electrical ring distribution system
GB2135541A (en) * 1983-01-17 1984-08-30 Linjebyggnad Ab Automatic blocking of a load disconnecting switch close to a fault
GB2198001A (en) * 1986-11-12 1988-06-02 Mitsubishi Electric Corp Fault section locating apparatus
US5574611A (en) * 1993-03-01 1996-11-12 Hitachi, Ltd. Service interruption minimizing system for power distribution line
US5631795A (en) * 1993-05-25 1997-05-20 Hochiki Corporation Line fault monitoring apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1446937A (en) * 1972-11-09 1976-08-18 Electricite De France Automatic systems for locating a defective portion of a feeder line of a medium voltage electrical power distribution network and for isolating the defective portion from the network
GB1537841A (en) * 1974-11-22 1979-01-04 Sprecher & Schuh Ag System for switching out a short-circuited section from a closed electrical ring distribution system
GB2135541A (en) * 1983-01-17 1984-08-30 Linjebyggnad Ab Automatic blocking of a load disconnecting switch close to a fault
GB2198001A (en) * 1986-11-12 1988-06-02 Mitsubishi Electric Corp Fault section locating apparatus
US5574611A (en) * 1993-03-01 1996-11-12 Hitachi, Ltd. Service interruption minimizing system for power distribution line
US5631795A (en) * 1993-05-25 1997-05-20 Hochiki Corporation Line fault monitoring apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105810283A (en) * 2014-10-15 2016-07-27 谢春梅 High-strength low-electrical-resistivity high-voltage transmission power cable

Also Published As

Publication number Publication date
GB2326780A (en) 1998-12-30
GB9813196D0 (en) 1998-08-19
GB9713230D0 (en) 1997-08-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030618