JPS5454255A - Protective relay device - Google Patents

Protective relay device

Info

Publication number
JPS5454255A
JPS5454255A JP11944477A JP11944477A JPS5454255A JP S5454255 A JPS5454255 A JP S5454255A JP 11944477 A JP11944477 A JP 11944477A JP 11944477 A JP11944477 A JP 11944477A JP S5454255 A JPS5454255 A JP S5454255A
Authority
JP
Japan
Prior art keywords
output
relay
adder
converter
relay device
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
JP11944477A
Other languages
Japanese (ja)
Other versions
JPS611976B2 (en
Inventor
Fumio Ando
Ryotaro Kondo
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 JP11944477A priority Critical patent/JPS5454255A/en
Publication of JPS5454255A publication Critical patent/JPS5454255A/en
Publication of JPS611976B2 publication Critical patent/JPS611976B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To enhance reliability by preventing the operation of relay alone deemed to be making maloperation, but not excessibely, by detecting exactly error due to noise, etc. of converter.
CONSTITUTION: The converter 1 which converts current flowing in the transmission line L to be protected into a predetermined value consists of the converters TA to TC, the adder AD1 which calculates and outputs input sum, and the converter TZ which converts the output from the adder. The converters contain filter, etc. by which higher harmonic wave contained in input is removed. The relay device 2 consists of the relay devices RAB to RCA which operate in response to the output of the device 1, and the monitoring device 3 consists of the subtracting circuit SU which uses as input the output of the device 1 and calculates the difference between the output of the adder AD2 and one of the outputs of the device 1 and the comparators AB CPAB to CPCA which compare the output of the substacting circuit and according to the value compared, send a rejection signal to the relay device. Thus, exact rejection to the relay device is made possible
COPYRIGHT: (C)1979,JPO&Japio
JP11944477A 1977-10-06 1977-10-06 Protective relay device Granted JPS5454255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11944477A JPS5454255A (en) 1977-10-06 1977-10-06 Protective relay device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11944477A JPS5454255A (en) 1977-10-06 1977-10-06 Protective relay device

Publications (2)

Publication Number Publication Date
JPS5454255A true JPS5454255A (en) 1979-04-28
JPS611976B2 JPS611976B2 (en) 1986-01-21

Family

ID=14761548

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11944477A Granted JPS5454255A (en) 1977-10-06 1977-10-06 Protective relay device

Country Status (1)

Country Link
JP (1) JPS5454255A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6118311A (en) * 1984-07-04 1986-01-27 三菱電機株式会社 Digital protective relaying device
JPH06169529A (en) * 1992-12-01 1994-06-14 Tokyo Electric Power Co Inc:The Protection circuit in system interconnection inverter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6118311A (en) * 1984-07-04 1986-01-27 三菱電機株式会社 Digital protective relaying device
JPH06169529A (en) * 1992-12-01 1994-06-14 Tokyo Electric Power Co Inc:The Protection circuit in system interconnection inverter

Also Published As

Publication number Publication date
JPS611976B2 (en) 1986-01-21

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