JPS51122739A - System for grounding disconnection detection impedance - Google Patents

System for grounding disconnection detection impedance

Info

Publication number
JPS51122739A
JPS51122739A JP50038434A JP3843475A JPS51122739A JP S51122739 A JPS51122739 A JP S51122739A JP 50038434 A JP50038434 A JP 50038434A JP 3843475 A JP3843475 A JP 3843475A JP S51122739 A JPS51122739 A JP S51122739A
Authority
JP
Japan
Prior art keywords
disconnection detection
detection impedance
grounding disconnection
grounding
impedance
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
JP50038434A
Other languages
Japanese (ja)
Inventor
Atsuhiro Yoshizaki
Mitsuo Watai
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50038434A priority Critical patent/JPS51122739A/en
Publication of JPS51122739A publication Critical patent/JPS51122739A/en
Pending legal-status Critical Current

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  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To provide a system for grounding disconnection detection impedance, which does not require considerations about heat and requires a comparatively simple end equipment.
COPYRIGHT: (C)1976,JPO&Japio
JP50038434A 1975-03-28 1975-03-28 System for grounding disconnection detection impedance Pending JPS51122739A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50038434A JPS51122739A (en) 1975-03-28 1975-03-28 System for grounding disconnection detection impedance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50038434A JPS51122739A (en) 1975-03-28 1975-03-28 System for grounding disconnection detection impedance

Publications (1)

Publication Number Publication Date
JPS51122739A true JPS51122739A (en) 1976-10-27

Family

ID=12525193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50038434A Pending JPS51122739A (en) 1975-03-28 1975-03-28 System for grounding disconnection detection impedance

Country Status (1)

Country Link
JP (1) JPS51122739A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5787283A (en) * 1980-09-12 1982-05-31 Rca Corp Power supplying method
US7772857B2 (en) * 2006-12-22 2010-08-10 Abb Research Ltd. System and method to determine the impedance of a disconnected electrical facility

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5016844A (en) * 1973-06-21 1975-02-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5016844A (en) * 1973-06-21 1975-02-21

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5787283A (en) * 1980-09-12 1982-05-31 Rca Corp Power supplying method
JPH0320106B2 (en) * 1980-09-12 1991-03-18 Rca Corp
US7772857B2 (en) * 2006-12-22 2010-08-10 Abb Research Ltd. System and method to determine the impedance of a disconnected electrical facility

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