JPS5418055A - Protective relay - Google Patents

Protective relay

Info

Publication number
JPS5418055A
JPS5418055A JP8251377A JP8251377A JPS5418055A JP S5418055 A JPS5418055 A JP S5418055A JP 8251377 A JP8251377 A JP 8251377A JP 8251377 A JP8251377 A JP 8251377A JP S5418055 A JPS5418055 A JP S5418055A
Authority
JP
Japan
Prior art keywords
protective relay
current
voltage
cancellating
malfunction
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
JP8251377A
Other languages
Japanese (ja)
Inventor
Makio Watabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8251377A priority Critical patent/JPS5418055A/en
Publication of JPS5418055A publication Critical patent/JPS5418055A/en
Pending legal-status Critical Current

Links

Landscapes

  • Protection Of Generators And Motors (AREA)

Abstract

PURPOSE: To prevent the malfunction of protective relay for three-phase induction motor due to the start-up current by applying the voltage cancellating the voltage detected by the unbalanced current of a current transformer at the time of start-up to the comparator.
COPYRIGHT: (C)1979,JPO&Japio
JP8251377A 1977-07-12 1977-07-12 Protective relay Pending JPS5418055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8251377A JPS5418055A (en) 1977-07-12 1977-07-12 Protective relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8251377A JPS5418055A (en) 1977-07-12 1977-07-12 Protective relay

Publications (1)

Publication Number Publication Date
JPS5418055A true JPS5418055A (en) 1979-02-09

Family

ID=13776594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8251377A Pending JPS5418055A (en) 1977-07-12 1977-07-12 Protective relay

Country Status (1)

Country Link
JP (1) JPS5418055A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6096430U (en) * 1983-12-08 1985-07-01 株式会社　丸島水門製作所 dust remover
JPS6178909A (en) * 1984-09-26 1986-04-22 Marusei Jukogyo Kk Multistage type rack dust remover
JPS627425U (en) * 1985-06-27 1987-01-17
JPS6431125U (en) * 1987-08-17 1989-02-27

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6096430U (en) * 1983-12-08 1985-07-01 株式会社　丸島水門製作所 dust remover
JPS6178909A (en) * 1984-09-26 1986-04-22 Marusei Jukogyo Kk Multistage type rack dust remover
JPH0311322B2 (en) * 1984-09-26 1991-02-15 Marusei Jukogyo
JPS627425U (en) * 1985-06-27 1987-01-17
JPH0444661Y2 (en) * 1985-06-27 1992-10-21
JPS6431125U (en) * 1987-08-17 1989-02-27

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