JPS54103524A - Electrical route insulation resistance supervising device - Google Patents

Electrical route insulation resistance supervising device

Info

Publication number
JPS54103524A
JPS54103524A JP1099978A JP1099978A JPS54103524A JP S54103524 A JPS54103524 A JP S54103524A JP 1099978 A JP1099978 A JP 1099978A JP 1099978 A JP1099978 A JP 1099978A JP S54103524 A JPS54103524 A JP S54103524A
Authority
JP
Japan
Prior art keywords
direct current
supervising
voltage
value
electrical route
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
JP1099978A
Other languages
Japanese (ja)
Inventor
Nobuo Tatemura
Hidenori Oda
Kiyomi Yamamoto
Kazuhiro Ishii
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.)
Mitsubishi Electric Corp
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Electric Corp
Mitsubishi Heavy Industries 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 Mitsubishi Electric Corp, Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Electric Corp
Priority to JP1099978A priority Critical patent/JPS54103524A/en
Publication of JPS54103524A publication Critical patent/JPS54103524A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

PURPOSE: To supervise an insulation lowering of an electrical route discriminating an alternating current component and a direct current component by applying a direct current voltage to a circuit flowing a charging current, supervising an insulation state of the electrical route with this direct current voltage and by flowing a current flown through a stray capacitance through a condenser.
CONSTITUTION: Making an insulation resistance supervising value of an electrical route to be RA, a supervising voltage of a direct current power source 20 of a constant voltage E, a resistance value of a detecting resistor 6 R6, a sum of series resistance looking from an above mentioned direct current power source 20 such as current limitting resistors 5 and 14, a grounding resistance value at a "B" point etc. to be RB, then a voltage E6 appearing at both ends of the detecting resistor 6 becomes to be E6=R6.E/(RA+RB+R6), supervising a value of E6 corresponding with a variation of RA, detecting after comparing with a determined value at a comparator 72, only when reaching to a determined value a time limitting circuit 73 and a switching circuit 74 are operated and an electromagnetic device 8 is driven.
COPYRIGHT: (C)1979,JPO&Japio
JP1099978A 1978-02-02 1978-02-02 Electrical route insulation resistance supervising device Pending JPS54103524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1099978A JPS54103524A (en) 1978-02-02 1978-02-02 Electrical route insulation resistance supervising device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1099978A JPS54103524A (en) 1978-02-02 1978-02-02 Electrical route insulation resistance supervising device

Publications (1)

Publication Number Publication Date
JPS54103524A true JPS54103524A (en) 1979-08-15

Family

ID=11765824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1099978A Pending JPS54103524A (en) 1978-02-02 1978-02-02 Electrical route insulation resistance supervising device

Country Status (1)

Country Link
JP (1) JPS54103524A (en)

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