GB2292490A - Protection against lightning surges on power lines - Google Patents

Protection against lightning surges on power lines

Info

Publication number
GB2292490A
GB2292490A GB9523216A GB9523216A GB2292490A GB 2292490 A GB2292490 A GB 2292490A GB 9523216 A GB9523216 A GB 9523216A GB 9523216 A GB9523216 A GB 9523216A GB 2292490 A GB2292490 A GB 2292490A
Authority
GB
United Kingdom
Prior art keywords
inductor
transient
voltage
filter
impulse
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Withdrawn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
GB9523216A
Other versions
GB9523216D0 (en
Inventor
John Richard Gumley
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.)
INT PROTECTION CONSULT Pty Ltd
Original Assignee
INT PROTECTION CONSULT Pty 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 INT PROTECTION CONSULT Pty Ltd filed Critical INT PROTECTION CONSULT Pty Ltd
Publication of GB9523216D0 publication Critical patent/GB9523216D0/en
Publication of GB2292490A publication Critical patent/GB2292490A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
    • H02H9/047—Free-wheeling circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

An arrangement for protecting electrical equipment from the effects of lightning strike-induced surges on power lines is provided in which a protective device (10; 12; 20 or 30) is connected across the inductor (L) of an L/C filter, the device being arranged to remain inactive and present a high impedance to an electrical impulse or transient applied to the filter and to shore circuit the inductor (L) when a voltage polarity reversal on the inductor (L) occurs upon completion of the impulse or transient, so that magnetic energy stored in the inductor (L) during the impulse or transient is subsequently dissipated in the form of heat instead of being passed forward to the protected equipment. The device may comprise or include a bridge rectifier arrangement (12 or 20) either with the inductor (L) located within the rectifier bridge (12) or with a switching device (18) located within the bridge (20) to be triggered by a voltage reversal sensing device (16). Alternatively, the device (10; 30) may include an arrestor (14; 31) and at least one capacitor (C1, C2; 38, 39) adapted to be charged as a result of the transient applied to the filter, and the voltage in the capacitor is added to the post-transient voltage in the inductor (L) of the filter so that the combined voltage causes the arrestor (14; 31) to operate. <IMAGE>
GB9523216A 1993-05-14 1994-05-13 Protection against lightning surges on power lines Withdrawn GB2292490A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPL881793 1993-05-14
PCT/AU1994/000249 WO1994027350A1 (en) 1993-05-14 1994-05-13 Protection against lightning surges on power lines

Publications (2)

Publication Number Publication Date
GB9523216D0 GB9523216D0 (en) 1996-01-17
GB2292490A true GB2292490A (en) 1996-02-21

Family

ID=3776893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9523216A Withdrawn GB2292490A (en) 1993-05-14 1994-05-13 Protection against lightning surges on power lines

Country Status (3)

Country Link
DE (1) DE4492963T1 (en)
GB (1) GB2292490A (en)
WO (1) WO1994027350A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5995352A (en) * 1994-11-29 1999-11-30 Erico Lightning Technologies Pty. Ltd. Ignition apparatus and method
CN103078307B (en) * 2013-01-27 2016-02-03 黄永捷 Lightning protection track switch signal indication rectifier

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660719A (en) * 1970-08-26 1972-05-02 Texas Instruments Inc Transient suppression system
EP0046408A1 (en) * 1980-08-20 1982-02-24 Power Integrity Corporation Transient energy control and suppression circuit
US4328523A (en) * 1979-12-28 1982-05-04 Home Oil Company Limited Method and apparatus for the protection of electrical equipment from high voltage transients
US4434396A (en) * 1981-11-02 1984-02-28 Montague Herbert R Power line transient suppression circuit
FR2563058A1 (en) * 1984-04-17 1985-10-18 Commissariat Energie Atomique Device for protecting electrical equipment connected to a low-voltage network from strong electromagnetic pulses, in particular due to lightning
US4616286A (en) * 1982-08-02 1986-10-07 Puroflow Corporation Power line filter
US4698721A (en) * 1983-11-07 1987-10-06 Puroflow Corp. Power line filter for transient and continuous noise suppression

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660719A (en) * 1970-08-26 1972-05-02 Texas Instruments Inc Transient suppression system
US4328523A (en) * 1979-12-28 1982-05-04 Home Oil Company Limited Method and apparatus for the protection of electrical equipment from high voltage transients
EP0046408A1 (en) * 1980-08-20 1982-02-24 Power Integrity Corporation Transient energy control and suppression circuit
US4434396A (en) * 1981-11-02 1984-02-28 Montague Herbert R Power line transient suppression circuit
US4616286A (en) * 1982-08-02 1986-10-07 Puroflow Corporation Power line filter
US4698721A (en) * 1983-11-07 1987-10-06 Puroflow Corp. Power line filter for transient and continuous noise suppression
FR2563058A1 (en) * 1984-04-17 1985-10-18 Commissariat Energie Atomique Device for protecting electrical equipment connected to a low-voltage network from strong electromagnetic pulses, in particular due to lightning

Also Published As

Publication number Publication date
DE4492963T1 (en) 1996-12-19
WO1994027350A1 (en) 1994-11-24
GB9523216D0 (en) 1996-01-17

Similar Documents

Publication Publication Date Title
US4571656A (en) Electrical circuit for protection against surge overvoltage of transients
CA2110020A1 (en) Isolator surge protector for dc isolation and ac grounding of cathodically protected systems
FR2583590B1 (en) DEVICE FOR PROTECTING AN ELECTRICAL ENERGY LINE AGAINST HIGH TRANSIENT OVERVOLTAGES
FI68488C (en) SPAENNINGSSTYRT TRANSIENTSKYDD
CA2425901A1 (en) Fault tolerant power supply circuit
RU93004841A (en) DEVICE OF PROTECTION OF ELECTRICAL CIRCUITS OF TELECOMMUNICATION EQUIPMENT FROM TRANSITION PROCESSES
MY107457A (en) Overcurrent protection device
SE8106947L (en) DEVICE FOR OVERHEATING AND OVERVOLTAGE IN A VOLTAGE LIMIT CIRCUIT
RU95110754A (en) Method and device for protecting long-distance communication units
CA2023605A1 (en) Protection circuit protected from overvoltage and overcurrent
CA2063654A1 (en) Surge absorber for protection of communication equipment connected to communication lines
CA2056228A1 (en) Protection structure for a surge absorber
GB2292490A (en) Protection against lightning surges on power lines
SE8107348L (en) Protective circuit
CA2146941A1 (en) Overvoltage Protection
GB1242673A (en) Overvoltage protection circuit
ATE152553T1 (en) ARRESTER DISCONNECTOR
KR0141649B1 (en) A circuit for protecting irregular impulsive voltage influx
AU679985B2 (en) Protection against lightning surges on power lines
SE7608045L (en) OVERVOLTAGE PROTECTION DEVICE FOR LOW VOLTAGE SYSTEMS
ES2120227T3 (en) DIFFERENTIAL CURRENT PROTECTION SWITCH WITH SPECIAL CORE MATERIAL.
RU2022437C1 (en) Overvoltage protection device for dc systems
SU1714748A1 (en) Method to bring direct current transformer to no-load operation
SU1728923A1 (en) Device for protecting dc networks against overload
JPH06245372A (en) Lightning surge protecting circuit

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)