JPS54105582A - Growunding detecting device - Google Patents

Growunding detecting device

Info

Publication number
JPS54105582A
JPS54105582A JP1309678A JP1309678A JPS54105582A JP S54105582 A JPS54105582 A JP S54105582A JP 1309678 A JP1309678 A JP 1309678A JP 1309678 A JP1309678 A JP 1309678A JP S54105582 A JPS54105582 A JP S54105582A
Authority
JP
Japan
Prior art keywords
battery
current
terminal
voltage drop
dividing point
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
JP1309678A
Other languages
Japanese (ja)
Inventor
Minoru Kita
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
Original Assignee
Mitsubishi Electric Corp
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 filed Critical Mitsubishi Electric Corp
Priority to JP1309678A priority Critical patent/JPS54105582A/en
Publication of JPS54105582A publication Critical patent/JPS54105582A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

PURPOSE: To detect fault current either on the higher potential side or on the lower potential side of the dividing point, by providing a rectifier, from which fault current flows out or into which fault current flows in with respect to the dividing point of direct-current power source divided to a certain value, between the dividing point and the grounding member by way of an operational amplifier.
CONSTITUTION: From terminal Tc of a battery B, each one end of each parallel circuit of R1 and R2, diode D1 and R3, and diode D2 and R4 is connected, while the other ends are grounded. When the positive side circuit of the battery B leaks current, the current flows from the ground to R3, diodes, R1 and terminal Tc of the battery B, and a voltage drop of Ebc is generated between both terminals (b) and (c) of R3. When the negative side circuit of the battery B leaks current, the current flow from terminal Tc to R1, D1, R2, and to the ground, and a voltage drop of Eac is generated between both terminals (a) and (c) of R2. Such voltage drop is supplied into an amplifier AP. After amplification, when exceeding a certain input value, a comparator LM operates, finally actuating a relay Ry. In this constitution, meanwhile, an operational amplifier CAP is made up of the amplifier AP and comparator LM.
COPYRIGHT: (C)1979,JPO&Japio
JP1309678A 1978-02-07 1978-02-07 Growunding detecting device Pending JPS54105582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1309678A JPS54105582A (en) 1978-02-07 1978-02-07 Growunding detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1309678A JPS54105582A (en) 1978-02-07 1978-02-07 Growunding detecting device

Publications (1)

Publication Number Publication Date
JPS54105582A true JPS54105582A (en) 1979-08-18

Family

ID=11823613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1309678A Pending JPS54105582A (en) 1978-02-07 1978-02-07 Growunding detecting device

Country Status (1)

Country Link
JP (1) JPS54105582A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016506028A (en) * 2012-12-03 2016-02-25 エルジー・ケム・リミテッド High voltage supply interruption assembly and battery pack insulation resistance breakdown judgment method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016506028A (en) * 2012-12-03 2016-02-25 エルジー・ケム・リミテッド High voltage supply interruption assembly and battery pack insulation resistance breakdown judgment method

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