JPS52125737A - Alternating current and direct current mixture detecting device - Google Patents

Alternating current and direct current mixture detecting device

Info

Publication number
JPS52125737A
JPS52125737A JP4225776A JP4225776A JPS52125737A JP S52125737 A JPS52125737 A JP S52125737A JP 4225776 A JP4225776 A JP 4225776A JP 4225776 A JP4225776 A JP 4225776A JP S52125737 A JPS52125737 A JP S52125737A
Authority
JP
Japan
Prior art keywords
direct current
current
detecting device
alternating current
mixture detecting
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
JP4225776A
Other languages
Japanese (ja)
Inventor
Takayoshi Nakagawa
Hiroaki Inagaki
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 JP4225776A priority Critical patent/JPS52125737A/en
Publication of JPS52125737A publication Critical patent/JPS52125737A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To detect surely mixing trouble of alternating current and direct current circuits by earthing neutral point of alternating current circuit provided near earthed direct current, and providing direct current relay corresponded to this current in the circuit.
COPYRIGHT: (C)1977,JPO&Japio
JP4225776A 1976-04-13 1976-04-13 Alternating current and direct current mixture detecting device Pending JPS52125737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4225776A JPS52125737A (en) 1976-04-13 1976-04-13 Alternating current and direct current mixture detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4225776A JPS52125737A (en) 1976-04-13 1976-04-13 Alternating current and direct current mixture detecting device

Publications (1)

Publication Number Publication Date
JPS52125737A true JPS52125737A (en) 1977-10-21

Family

ID=12630965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4225776A Pending JPS52125737A (en) 1976-04-13 1976-04-13 Alternating current and direct current mixture detecting device

Country Status (1)

Country Link
JP (1) JPS52125737A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122245A (en) * 1974-08-17 1976-02-21 Fuji Satsushi Kogyo Kk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122245A (en) * 1974-08-17 1976-02-21 Fuji Satsushi Kogyo Kk

Similar Documents

Publication Publication Date Title
JPS527699A (en) Alarm inspection device
JPS52125737A (en) Alternating current and direct current mixture detecting device
JPS51112193A (en) Processing method of semiconductor equipment
JPS5217693A (en) Electric wiring equipment installation process and the relative instru ments
JPS51147734A (en) Leak detecting apparatus
JPS51121154A (en) Disconnection detection system for d-c transmission line
JPS526100A (en) Operation indication device for switch
JPS5259829A (en) Central controller for electric devices
JPS5228637A (en) Grounding protection method
JPS5314320A (en) Detector of inverter operating condition
JPS5333342A (en) Discharge detector for electrical equipment
JPS5330756A (en) Protection system for dc transmission line
JPS5240730A (en) Control rectifier device
JPS5292470A (en) Duplicated system timer device
JPS53130079A (en) Disconnection detecting relay
JPS51132756A (en) Switch circuit
JPS5217643A (en) 1 line grounding accident detecting relay apparatus
JPS51149543A (en) System separating apparatus with the inspection devices
JPS525443A (en) Wire disconnection detecting process
JPS5352959A (en) Direct current earthed relay
JPS5441643A (en) M/n inspection circuit system
JPS5236777A (en) Inspection adapter for electric circuit
JPS5220248A (en) Converter circuit proteceive relay means
JPS5220247A (en) Converter circuit protective relay means
JPS51150044A (en) Wiring of breaker and branched switch