JPS5214848A - Start delay protective device in ward-leonard system - Google Patents

Start delay protective device in ward-leonard system

Info

Publication number
JPS5214848A
JPS5214848A JP50090094A JP9009475A JPS5214848A JP S5214848 A JPS5214848 A JP S5214848A JP 50090094 A JP50090094 A JP 50090094A JP 9009475 A JP9009475 A JP 9009475A JP S5214848 A JPS5214848 A JP S5214848A
Authority
JP
Japan
Prior art keywords
ward
protective device
start delay
leonard system
delay protective
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
JP50090094A
Other languages
Japanese (ja)
Inventor
Harumi Haneishi
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 JP50090094A priority Critical patent/JPS5214848A/en
Publication of JPS5214848A publication Critical patent/JPS5214848A/en
Pending legal-status Critical Current

Links

Landscapes

  • Protection Of Generators And Motors (AREA)
  • Motor And Converter Starters (AREA)

Abstract

PURPOSE:A start delay protective device in Ward-Leonard System which can protect surely a DC motor that is locked mechanically.
JP50090094A 1975-07-25 1975-07-25 Start delay protective device in ward-leonard system Pending JPS5214848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50090094A JPS5214848A (en) 1975-07-25 1975-07-25 Start delay protective device in ward-leonard system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50090094A JPS5214848A (en) 1975-07-25 1975-07-25 Start delay protective device in ward-leonard system

Publications (1)

Publication Number Publication Date
JPS5214848A true JPS5214848A (en) 1977-02-04

Family

ID=13988919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50090094A Pending JPS5214848A (en) 1975-07-25 1975-07-25 Start delay protective device in ward-leonard system

Country Status (1)

Country Link
JP (1) JPS5214848A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120386A (en) * 1979-03-06 1980-09-16 Fuji Electric Co Ltd Control system for dc commutatorless motor
JPS5680572A (en) * 1979-12-06 1981-07-01 Toho Gas Kk Operating device of rotary valve
JPS58154387A (en) * 1982-03-09 1983-09-13 Matsushita Electric Ind Co Ltd Brushless dc motor
JPH01316571A (en) * 1988-03-03 1989-12-21 Metalpraecis Berchem & Schaberg G Fuer Metallformgebung Mbh Adjusting ball cock with casing, flow path, cock ball and adjusting spindle
JPH0281975U (en) * 1988-12-13 1990-06-25
JPH07119847A (en) * 1993-10-22 1995-05-12 Kitz Corp Valve seat ring structure

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120386A (en) * 1979-03-06 1980-09-16 Fuji Electric Co Ltd Control system for dc commutatorless motor
JPS626438B2 (en) * 1979-03-06 1987-02-10 Fuji Electric Co Ltd
JPS5680572A (en) * 1979-12-06 1981-07-01 Toho Gas Kk Operating device of rotary valve
JPH0215748B2 (en) * 1979-12-06 1990-04-13 Toho Gasu Kk
JPS58154387A (en) * 1982-03-09 1983-09-13 Matsushita Electric Ind Co Ltd Brushless dc motor
JPH01316571A (en) * 1988-03-03 1989-12-21 Metalpraecis Berchem & Schaberg G Fuer Metallformgebung Mbh Adjusting ball cock with casing, flow path, cock ball and adjusting spindle
JPH0281975U (en) * 1988-12-13 1990-06-25
JPH07119847A (en) * 1993-10-22 1995-05-12 Kitz Corp Valve seat ring structure

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