GB1208642A - Means for selectively indicating a pylon where insulator failure has occurred - Google Patents

Means for selectively indicating a pylon where insulator failure has occurred

Info

Publication number
GB1208642A
GB1208642A GB3955568A GB3955568A GB1208642A GB 1208642 A GB1208642 A GB 1208642A GB 3955568 A GB3955568 A GB 3955568A GB 3955568 A GB3955568 A GB 3955568A GB 1208642 A GB1208642 A GB 1208642A
Authority
GB
United Kingdom
Prior art keywords
coils
pylon
earth
indicator
conductor
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
Application number
GB3955568A
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.)
Kronprinz GmbH
Original Assignee
Kronprinz GmbH
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
Priority claimed from DE19671640715 external-priority patent/DE1640715B1/en
Application filed by Kronprinz GmbH filed Critical Kronprinz GmbH
Publication of GB1208642A publication Critical patent/GB1208642A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1245—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Locating Faults (AREA)

Abstract

1,208,642. Protective arrangements. KRONPRINZ A.G. 19 Aug., 1968 [17 Aug., 1967], No. 39555/68. Heading H2K. In an overhead power transmission system having high voltage lines 5 carried by respective insulators 4 mounted on pylons 1, two induction coils 9, 10 are mounted on each pylon so as to be in the path of earth leakage current, e.g. resulting from a flash-over, and an indicator 12 is connected to the two coils. The pylons are interconnected by an earth conductor 6 and the induction coils 9, 10 are provided both below and above the cross arms 2, 3. These coils are mounted on iron rings 7, 8 surrounding the pylon or one leg of the pylon and are connected in series or in parallel with each other. The polarities of the voltages induced in the coils is such that when earth leakage currents J 1 , J 2 flow in opposite directions through the coils to the ground and the conductor 6, the indicator is operated by the sum of the voltages. If the fault is on an adjacent pylon then any earth leakage currents would flow from the earth conductor 6 to earth in the same direction through the coils and the voltages induced in the coils 9, 10 would cancel out. Each indicator 12 may have a flag which is released on the energization of an electromagnet or on the ignition of an explosive charge, Figs. 4 and 5 (not shown).
GB3955568A 1967-08-17 1968-08-19 Means for selectively indicating a pylon where insulator failure has occurred Expired GB1208642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671640715 DE1640715B1 (en) 1967-08-17 1967-08-17 DISPLAY DEVICE OF ARC FLASH ON INSULATORS OF HIGH VOLTAGE LINES

Publications (1)

Publication Number Publication Date
GB1208642A true GB1208642A (en) 1970-10-14

Family

ID=5684104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3955568A Expired GB1208642A (en) 1967-08-17 1968-08-19 Means for selectively indicating a pylon where insulator failure has occurred

Country Status (4)

Country Link
AT (1) AT287101B (en)
CH (1) CH480638A (en)
FR (1) FR1578398A (en)
GB (1) GB1208642A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991011727A1 (en) * 1990-01-29 1991-08-08 Niagara Mohawk Power Corporation Method and detector for identifying insulator flashover
CN100356181C (en) * 2004-07-02 2007-12-19 武汉奋进电力技术有限公司 AC-DC high-voltage insulator passive tester

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991011727A1 (en) * 1990-01-29 1991-08-08 Niagara Mohawk Power Corporation Method and detector for identifying insulator flashover
US5136248A (en) * 1990-01-29 1992-08-04 Niagara Mohawk Power Corporation Method and detector for identifying insulator flashover
CN100356181C (en) * 2004-07-02 2007-12-19 武汉奋进电力技术有限公司 AC-DC high-voltage insulator passive tester

Also Published As

Publication number Publication date
FR1578398A (en) 1969-08-14
CH480638A (en) 1969-10-31
AT287101B (en) 1971-01-11

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees