JPS51119944A - Field ground-fault protect relay - Google Patents

Field ground-fault protect relay

Info

Publication number
JPS51119944A
JPS51119944A JP4430575A JP4430575A JPS51119944A JP S51119944 A JPS51119944 A JP S51119944A JP 4430575 A JP4430575 A JP 4430575A JP 4430575 A JP4430575 A JP 4430575A JP S51119944 A JPS51119944 A JP S51119944A
Authority
JP
Japan
Prior art keywords
field ground
protect relay
relay
fault protect
fault
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
JP4430575A
Other languages
English (en)
Inventor
Yuzuru Imamura
Satoru Kitamura
Yoshiyuki Nagasawa
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 JP4430575A priority Critical patent/JPS51119944A/ja
Publication of JPS51119944A publication Critical patent/JPS51119944A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)
JP4430575A 1975-04-14 1975-04-14 Field ground-fault protect relay Pending JPS51119944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4430575A JPS51119944A (en) 1975-04-14 1975-04-14 Field ground-fault protect relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4430575A JPS51119944A (en) 1975-04-14 1975-04-14 Field ground-fault protect relay

Publications (1)

Publication Number Publication Date
JPS51119944A true JPS51119944A (en) 1976-10-20

Family

ID=12687771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4430575A Pending JPS51119944A (en) 1975-04-14 1975-04-14 Field ground-fault protect relay

Country Status (1)

Country Link
JP (1) JPS51119944A (ja)

Similar Documents

Publication Publication Date Title
JPS51131389A (en) Device for uniform polarized magnetic field
JPS5237413A (en) Magnetic recorder
JPS526073A (en) Magnetic field type electronic lens
JPS51119944A (en) Field ground-fault protect relay
JPS5281544A (en) Trip circuit of circuit breaker
JPS51134823A (en) Synchronous dynamotor
JPS5232557A (en) Supply control device
JPS5219216A (en) Overcurrent limiting circuit
JPS5219217A (en) Overcurrent limiting device
JPS5233443A (en) System down restoring system
JPS5233717A (en) Device for fixing tape
JPS51131964A (en) Filter device
JPS5370405A (en) Mode switching unit in record-reproducing apparatus
JPS51146961A (en) Hair-keeper for hair-curler
JPS51134826A (en) Core fastening device for inductive electric instrument
JPS5320782A (en) Hall element
JPS51147288A (en) Semiconductor device
JPS5272092A (en) Nuclear fusion device
JPS51145840A (en) Synchronous machine field system ground fault relay device
JPS5261962A (en) Semiconductor device
JPS5379317A (en) Chrominance components processing unit
JPS5241849A (en) Protecting circuit for electric circuit element
JPS5227322A (en) Card reader device
JPS5248958A (en) Constant current relay
JPS51122742A (en) Input circuit for prothctive relay