JPS6477415A - Digital protecting relay - Google Patents

Digital protecting relay

Info

Publication number
JPS6477415A
JPS6477415A JP62229751A JP22975187A JPS6477415A JP S6477415 A JPS6477415 A JP S6477415A JP 62229751 A JP62229751 A JP 62229751A JP 22975187 A JP22975187 A JP 22975187A JP S6477415 A JPS6477415 A JP S6477415A
Authority
JP
Japan
Prior art keywords
setting
effective value
unit
function
area
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
JP62229751A
Other languages
Japanese (ja)
Inventor
Masatoshi Noro
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.)
Takaoka Toko Co Ltd
Original Assignee
Takaoka Electric Mfg 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 Takaoka Electric Mfg Co Ltd filed Critical Takaoka Electric Mfg Co Ltd
Priority to JP62229751A priority Critical patent/JPS6477415A/en
Publication of JPS6477415A publication Critical patent/JPS6477415A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To obtain a multifunction protective relay unlimited by the scale of a function, by increasing the number of CPU units according to the scale of a function. CONSTITUTION:The function processed by a CPU unit 11 is to take in the digital value of an A/D converter 6, to extract a fundamental wave component, to convert it into an effective value, and to write it in the effective value area of a common memory unit 7. A CPU unit 12 inputs a setting from a panel 8, converts it into a format used internally, and thereafter writes it in the setting area of the common memory unit 7. A CPU unit 13 conducts a protective relay processing. That is, it reads the effective value from the effective value area of the common memory unit 7 and the setting from the setting area. Then, said unit 13 decides whether the value of the effective value area exceeds the setting and conducts a trip output via an output port 9 if it is connected for a certain period of time. When a function is added to increase a relay element, such relay element added to the program of the CPU unit 13 is to be added to an apparatus.
JP62229751A 1987-09-16 1987-09-16 Digital protecting relay Pending JPS6477415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62229751A JPS6477415A (en) 1987-09-16 1987-09-16 Digital protecting relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62229751A JPS6477415A (en) 1987-09-16 1987-09-16 Digital protecting relay

Publications (1)

Publication Number Publication Date
JPS6477415A true JPS6477415A (en) 1989-03-23

Family

ID=16897113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62229751A Pending JPS6477415A (en) 1987-09-16 1987-09-16 Digital protecting relay

Country Status (1)

Country Link
JP (1) JPS6477415A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0487523A (en) * 1990-07-26 1992-03-19 Nissin Electric Co Ltd Overload detector for ac filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0487523A (en) * 1990-07-26 1992-03-19 Nissin Electric Co Ltd Overload detector for ac filter

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