JPS54148251A - Bus protective system - Google Patents

Bus protective system

Info

Publication number
JPS54148251A
JPS54148251A JP5625278A JP5625278A JPS54148251A JP S54148251 A JPS54148251 A JP S54148251A JP 5625278 A JP5625278 A JP 5625278A JP 5625278 A JP5625278 A JP 5625278A JP S54148251 A JPS54148251 A JP S54148251A
Authority
JP
Japan
Prior art keywords
bus
disconnector
current transformer
divided protection
relay
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.)
Granted
Application number
JP5625278A
Other languages
Japanese (ja)
Other versions
JPS5818863B2 (en
Inventor
Eiichi Okamoto
Yutaka Yamada
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.)
Meidensha Electric Manufacturing Co Ltd
Tokyo Electric Power Company Holdings Inc
Original Assignee
Tokyo Electric Power Co Inc
Meidensha Electric Manufacturing 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 Tokyo Electric Power Co Inc, Meidensha Electric Manufacturing Co Ltd filed Critical Tokyo Electric Power Co Inc
Priority to JP53056252A priority Critical patent/JPS5818863B2/en
Publication of JPS54148251A publication Critical patent/JPS54148251A/en
Publication of JPS5818863B2 publication Critical patent/JPS5818863B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To digitally effect the divided protection of plural buses, by synchronously digitizing the currents of circuits and the opening or closing signals of bus selecting disconnectors and making calculations to produce signals to control the input data to a divided protection relay.
CONSTITUTION: The opening or closing signals of the bus selecting disconnectors 1A, 1B and the circuit currents detected by a current transformer 3 are entered into a coding unit 11 and synchronously sampled at a prescribed period so that digital quantities are obtained. If a digital protective relay 12 performs the divided protection of a bus A, current information obtained from the current transformer 3 is controlled by using the digital-coded condition of the disconnector 1A. When the disconnector 1A is open, the current information is not used. If the relay 12 performs the divided protection of a bus B, information obtained from the current transformer 3 is controlled by using the condition of the disconnector 1B.
COPYRIGHT: (C)1979,JPO&Japio
JP53056252A 1978-05-12 1978-05-12 Bus bar protection method Expired JPS5818863B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53056252A JPS5818863B2 (en) 1978-05-12 1978-05-12 Bus bar protection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53056252A JPS5818863B2 (en) 1978-05-12 1978-05-12 Bus bar protection method

Publications (2)

Publication Number Publication Date
JPS54148251A true JPS54148251A (en) 1979-11-20
JPS5818863B2 JPS5818863B2 (en) 1983-04-15

Family

ID=13021882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53056252A Expired JPS5818863B2 (en) 1978-05-12 1978-05-12 Bus bar protection method

Country Status (1)

Country Link
JP (1) JPS5818863B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5875424A (en) * 1981-10-30 1983-05-07 株式会社明電舎 Digital bus protecting device
JPS62210832A (en) * 1986-03-10 1987-09-16 日新電機株式会社 Transforming equipment for distribution

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5875424A (en) * 1981-10-30 1983-05-07 株式会社明電舎 Digital bus protecting device
JPH0232851B2 (en) * 1981-10-30 1990-07-24 Meidensha Electric Mfg Co Ltd
JPS62210832A (en) * 1986-03-10 1987-09-16 日新電機株式会社 Transforming equipment for distribution

Also Published As

Publication number Publication date
JPS5818863B2 (en) 1983-04-15

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