JPS5546181A - Measuring method of dielectric loss tangent for power cable - Google Patents

Measuring method of dielectric loss tangent for power cable

Info

Publication number
JPS5546181A
JPS5546181A JP12058278A JP12058278A JPS5546181A JP S5546181 A JPS5546181 A JP S5546181A JP 12058278 A JP12058278 A JP 12058278A JP 12058278 A JP12058278 A JP 12058278A JP S5546181 A JPS5546181 A JP S5546181A
Authority
JP
Japan
Prior art keywords
dielectric loss
loss tangent
measuring unit
measuring method
power cable
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
JP12058278A
Other languages
Japanese (ja)
Inventor
Osamu Tanda
Mitsugi Aihara
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.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
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 Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP12058278A priority Critical patent/JPS5546181A/en
Publication of JPS5546181A publication Critical patent/JPS5546181A/en
Pending legal-status Critical Current

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  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

PURPOSE: To enable the dielectric loss tangent measurement with high accuracy for measuring personnel with safe condition, by performing the dial operation of inverse Shearing bridge from the point isolated to the measuring unit.
CONSTITUTION: The operation side 1 and the measuring unit 2 are sectioned in isolation, and the electric coupling with these is made by the light guide 3a such as optical fiber. When the switch S1 is depressed at the operation side 1, LED 4a illuminates and emitted on the guide 3a. The photo transistor 5a of the measuring unit 2 is operated to activate the relay A. Thus, the unit 6a driving and controlling the step motors M1, M2,...,Mn for dial operation is activated. As a result, the dielectric loss tangent with high accuracy can be measured safely.
COPYRIGHT: (C)1980,JPO&Japio
JP12058278A 1978-09-29 1978-09-29 Measuring method of dielectric loss tangent for power cable Pending JPS5546181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12058278A JPS5546181A (en) 1978-09-29 1978-09-29 Measuring method of dielectric loss tangent for power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12058278A JPS5546181A (en) 1978-09-29 1978-09-29 Measuring method of dielectric loss tangent for power cable

Publications (1)

Publication Number Publication Date
JPS5546181A true JPS5546181A (en) 1980-03-31

Family

ID=14789838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12058278A Pending JPS5546181A (en) 1978-09-29 1978-09-29 Measuring method of dielectric loss tangent for power cable

Country Status (1)

Country Link
JP (1) JPS5546181A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127180A (en) * 1982-01-25 1983-07-28 Nippon Telegr & Teleph Corp <Ntt> Electron tube life tester
JPS58142266A (en) * 1982-02-19 1983-08-24 Nippon Telegr & Teleph Corp <Ntt> Power source unit for measuring electron tube
JPS6136621U (en) * 1984-08-10 1986-03-06 木村寝台工業株式会社 Drive mechanism for raising and lowering the floor in a supine table
JPH0624312U (en) * 1992-08-28 1994-03-29 古河電気工業株式会社 Prefabricated overhead wire for drum winding

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127180A (en) * 1982-01-25 1983-07-28 Nippon Telegr & Teleph Corp <Ntt> Electron tube life tester
JPS58142266A (en) * 1982-02-19 1983-08-24 Nippon Telegr & Teleph Corp <Ntt> Power source unit for measuring electron tube
JPS6136621U (en) * 1984-08-10 1986-03-06 木村寝台工業株式会社 Drive mechanism for raising and lowering the floor in a supine table
JPH0624312U (en) * 1992-08-28 1994-03-29 古河電気工業株式会社 Prefabricated overhead wire for drum winding

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