JPS51130851A - Electric motor protective device - Google Patents

Electric motor protective device

Info

Publication number
JPS51130851A
JPS51130851A JP5453675A JP5453675A JPS51130851A JP S51130851 A JPS51130851 A JP S51130851A JP 5453675 A JP5453675 A JP 5453675A JP 5453675 A JP5453675 A JP 5453675A JP S51130851 A JPS51130851 A JP S51130851A
Authority
JP
Japan
Prior art keywords
electric motor
protective device
motor protective
variation
little
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
JP5453675A
Other languages
Japanese (ja)
Inventor
Nobunori Matsudaira
Daisaku Morinaga
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 JP5453675A priority Critical patent/JPS51130851A/en
Publication of JPS51130851A publication Critical patent/JPS51130851A/en
Pending legal-status Critical Current

Links

Landscapes

  • Protection Of Generators And Motors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE: A protection device of an electric motor capable of surely protecting the motor even if the variation of the current between a normal operation and abnormal operation time may be little.
COPYRIGHT: (C)1976,JPO&Japio
JP5453675A 1975-05-12 1975-05-12 Electric motor protective device Pending JPS51130851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5453675A JPS51130851A (en) 1975-05-12 1975-05-12 Electric motor protective device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5453675A JPS51130851A (en) 1975-05-12 1975-05-12 Electric motor protective device

Publications (1)

Publication Number Publication Date
JPS51130851A true JPS51130851A (en) 1976-11-13

Family

ID=12973375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5453675A Pending JPS51130851A (en) 1975-05-12 1975-05-12 Electric motor protective device

Country Status (1)

Country Link
JP (1) JPS51130851A (en)

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