JPS56100366A - Monitor for dirt - Google Patents

Monitor for dirt

Info

Publication number
JPS56100366A
JPS56100366A JP303680A JP303680A JPS56100366A JP S56100366 A JPS56100366 A JP S56100366A JP 303680 A JP303680 A JP 303680A JP 303680 A JP303680 A JP 303680A JP S56100366 A JPS56100366 A JP S56100366A
Authority
JP
Japan
Prior art keywords
dirt
current
constitution
amount
insulator
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.)
Pending
Application number
JP303680A
Other languages
Japanese (ja)
Inventor
Kenji Wada
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP303680A priority Critical patent/JPS56100366A/en
Publication of JPS56100366A publication Critical patent/JPS56100366A/en
Pending 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)
  • Testing Relating To Insulation (AREA)

Abstract

PURPOSE:To enable sure and suitable maintenance, by a constitution that an object to be monitored for dirt is installed with a penetration-type current transformer and the amount of dirt can continuously be monitored. CONSTITUTION:On a ring shape iron core 5a, a sample insulator 1 is provided with a penetration-type current transformer 5 in which secondary windings 5b are uniformly wound. The leakage current I1 flowing to the surface of the sample insulator 1 is changed with a surface leakage resistor R. If the dirt of the surface of the insulator 1 is less, the current is at most several milli-amps, but if the amount of dirt is increased to be just before flashover, it amounts to several hundreds of milli- amps to several amperes. When the leakage current I1 before the flashover for the sample insulator 1 is <=200mA, the secondary winding 5b is wound so that the secondary current of the current transformer 5 corresponding to the leakage current I1=200mA is, e.g., 1.5mA, and a protective relay 10 is set so that it is operated at the secondary current of >=1.5mA. With the constitution like this, the amount of dirt of insulators is continuously monitored for sure maintenance.
JP303680A 1980-01-17 1980-01-17 Monitor for dirt Pending JPS56100366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP303680A JPS56100366A (en) 1980-01-17 1980-01-17 Monitor for dirt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP303680A JPS56100366A (en) 1980-01-17 1980-01-17 Monitor for dirt

Publications (1)

Publication Number Publication Date
JPS56100366A true JPS56100366A (en) 1981-08-12

Family

ID=11546078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP303680A Pending JPS56100366A (en) 1980-01-17 1980-01-17 Monitor for dirt

Country Status (1)

Country Link
JP (1) JPS56100366A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS612082A (en) * 1984-06-15 1986-01-08 Shikoku Electric Power Co Inc Display device of deterioration of insulator insulation
CN107631964A (en) * 2017-09-28 2018-01-26 江苏省电力试验研究院有限公司 Haze filth fallout monitoring system and monitoring method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS612082A (en) * 1984-06-15 1986-01-08 Shikoku Electric Power Co Inc Display device of deterioration of insulator insulation
CN107631964A (en) * 2017-09-28 2018-01-26 江苏省电力试验研究院有限公司 Haze filth fallout monitoring system and monitoring method

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