JPS5253248A - Directional relay - Google Patents

Directional relay

Info

Publication number
JPS5253248A
JPS5253248A JP12893175A JP12893175A JPS5253248A JP S5253248 A JPS5253248 A JP S5253248A JP 12893175 A JP12893175 A JP 12893175A JP 12893175 A JP12893175 A JP 12893175A JP S5253248 A JPS5253248 A JP S5253248A
Authority
JP
Japan
Prior art keywords
directional relay
senstivity
circit
miss
multiplier
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
JP12893175A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6222331B2 (cs
Inventor
Takayuki Kobayashi
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 JP12893175A priority Critical patent/JPS5253248A/ja
Publication of JPS5253248A publication Critical patent/JPS5253248A/ja
Publication of JPS6222331B2 publication Critical patent/JPS6222331B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
JP12893175A 1975-10-28 1975-10-28 Directional relay Granted JPS5253248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12893175A JPS5253248A (en) 1975-10-28 1975-10-28 Directional relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12893175A JPS5253248A (en) 1975-10-28 1975-10-28 Directional relay

Publications (2)

Publication Number Publication Date
JPS5253248A true JPS5253248A (en) 1977-04-28
JPS6222331B2 JPS6222331B2 (cs) 1987-05-18

Family

ID=14996925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12893175A Granted JPS5253248A (en) 1975-10-28 1975-10-28 Directional relay

Country Status (1)

Country Link
JP (1) JPS5253248A (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5346648A (en) * 1976-10-12 1978-04-26 Kyushu Electric Power Differentiation product type protective relay

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48101539A (cs) * 1972-04-07 1973-12-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48101539A (cs) * 1972-04-07 1973-12-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5346648A (en) * 1976-10-12 1978-04-26 Kyushu Electric Power Differentiation product type protective relay

Also Published As

Publication number Publication date
JPS6222331B2 (cs) 1987-05-18

Similar Documents

Publication Publication Date Title
JPS5253248A (en) Directional relay
JPS5221630A (en) Anti-overcurrent and starting device of dc power transmission system
JPS51147734A (en) Leak detecting apparatus
JPS5217643A (en) 1 line grounding accident detecting relay apparatus
JPS5240748A (en) Tester for relay device
JPS51111493A (en) Separation of oil and water
JPS5371056A (en) Steroid derivs.
JPS5213647A (en) Field loss detector
JPS51119154A (en) Floor heating system
JPS51143483A (en) Method of deoxidizing disposal of foods and to preserve the same
JPS51127357A (en) Protecting relay system
JPS5217648A (en) Dc stabilizing power source system
JPS5213239A (en) Elevation path assembly device for elevator of industrial use
JPS5226417A (en) Control system for ac motor
JPS5314320A (en) Detector of inverter operating condition
JPS51127320A (en) Faces-confrontation type synchronous motor
JPS51124046A (en) Sewage disposal device
JPS5370355A (en) Power source apparatus
JPS5233058A (en) Power factor-voltage control device
JPS5225965A (en) Sealing screw
JPS51150048A (en) Overload prevention device
JPS5214856A (en) Overcurrent protective device
JPS51147735A (en) Grounding detecting system
JPS5240750A (en) Phase comparison relay device
JPS529489A (en) Element for electrochemically measuring oxidized substance or reduced substance in water solution