JPS5254932A - Relay system of detecting one line grounding accident - Google Patents

Relay system of detecting one line grounding accident

Info

Publication number
JPS5254932A
JPS5254932A JP13039275A JP13039275A JPS5254932A JP S5254932 A JPS5254932 A JP S5254932A JP 13039275 A JP13039275 A JP 13039275A JP 13039275 A JP13039275 A JP 13039275A JP S5254932 A JPS5254932 A JP S5254932A
Authority
JP
Japan
Prior art keywords
detecting
accident
relay system
line grounding
grounding accident
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
JP13039275A
Other languages
Japanese (ja)
Inventor
Yoshiaki Matsui
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 JP13039275A priority Critical patent/JPS5254932A/en
Publication of JPS5254932A publication Critical patent/JPS5254932A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: Mapping out the capability of securely detecting the one line grounding accident even if the accident point resistance is larger in the design that the accident judgment may be done taking notice of zero-phase voltage, antiphase voltage and phase difference of line voltage.
COPYRIGHT: (C)1977,JPO&Japio
JP13039275A 1975-10-31 1975-10-31 Relay system of detecting one line grounding accident Pending JPS5254932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13039275A JPS5254932A (en) 1975-10-31 1975-10-31 Relay system of detecting one line grounding accident

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13039275A JPS5254932A (en) 1975-10-31 1975-10-31 Relay system of detecting one line grounding accident

Publications (1)

Publication Number Publication Date
JPS5254932A true JPS5254932A (en) 1977-05-04

Family

ID=15033208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13039275A Pending JPS5254932A (en) 1975-10-31 1975-10-31 Relay system of detecting one line grounding accident

Country Status (1)

Country Link
JP (1) JPS5254932A (en)

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