JPS54121945A - Inspection circuit for carrier protective relay - Google Patents

Inspection circuit for carrier protective relay

Info

Publication number
JPS54121945A
JPS54121945A JP3005478A JP3005478A JPS54121945A JP S54121945 A JPS54121945 A JP S54121945A JP 3005478 A JP3005478 A JP 3005478A JP 3005478 A JP3005478 A JP 3005478A JP S54121945 A JPS54121945 A JP S54121945A
Authority
JP
Japan
Prior art keywords
inspection
transmission line
circuit
electric station
anomaly
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
JP3005478A
Other languages
Japanese (ja)
Inventor
Shiro Furusawa
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 JP3005478A priority Critical patent/JPS54121945A/en
Publication of JPS54121945A publication Critical patent/JPS54121945A/en
Pending legal-status Critical Current

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Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To eliminate unnecessary inspection by the procedure in which the first electric station is provided with a transmission line anomaly detection circuit, and when an anomaly occurs on transmission line, inspection starting signal from inspection device is locked to interrupt back inspection.
CONSTITUTION: The first electric station A is provided with the phase comparative relay 5a, the signal terminal device 6A, and inspection device 7A, the wireless device 8A, and the inspection result decision circuit 9. And, the signal terminal device is provided with the transmission line anomaly detection circuit 63A, the output of which is sent to the AND circuit 72A through the constantly closed contact 64A which opens when an anomaly is detected on transmission line, along with inspection starting signal for the inspection device 7A. And, the output of the AND circuit is connected to the inspection starting channel 62A of the signal terminal device 6A. Thus, in cases where transmission line anomaly occurs, such as facing, etc., the transmission line enomaly detection circuit 63A operates to open the constantly closed contact 64A, and thereby inspection starting signal from the electric station A is locked and back inspection to the electric station B is interruped.
COPYRIGHT: (C)1979,JPO&Japio
JP3005478A 1978-03-16 1978-03-16 Inspection circuit for carrier protective relay Pending JPS54121945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3005478A JPS54121945A (en) 1978-03-16 1978-03-16 Inspection circuit for carrier protective relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3005478A JPS54121945A (en) 1978-03-16 1978-03-16 Inspection circuit for carrier protective relay

Publications (1)

Publication Number Publication Date
JPS54121945A true JPS54121945A (en) 1979-09-21

Family

ID=12293102

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3005478A Pending JPS54121945A (en) 1978-03-16 1978-03-16 Inspection circuit for carrier protective relay

Country Status (1)

Country Link
JP (1) JPS54121945A (en)

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