JPS5467655A - Distribution line shortage protector - Google Patents

Distribution line shortage protector

Info

Publication number
JPS5467655A
JPS5467655A JP13380677A JP13380677A JPS5467655A JP S5467655 A JPS5467655 A JP S5467655A JP 13380677 A JP13380677 A JP 13380677A JP 13380677 A JP13380677 A JP 13380677A JP S5467655 A JPS5467655 A JP S5467655A
Authority
JP
Japan
Prior art keywords
distribution line
circuit
switch
electrode
control circuit
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
JP13380677A
Other languages
Japanese (ja)
Other versions
JPS611978B2 (en
Inventor
Yoshitaka Moriyama
Original Assignee
Toshiba Corp
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 filed Critical Toshiba Corp
Priority to JP13380677A priority Critical patent/JPS611978B2/ja
Publication of JPS5467655A publication Critical patent/JPS5467655A/en
Publication of JPS611978B2 publication Critical patent/JPS611978B2/ja
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To provide an inexpensive distribution line shortage protector by combining a normally exciting no-voltage open type switch with a controller having an overcurrent detector and control circuit to thus construct a cmpact and convenient switch.
CONSTITUTION: A switch 30 is always operated to close a circuit of an electrode 31 by the exciting power "ON" operation of a control circuit 42. When a shortage fault occurs at the load side, a fault current is supplied via a current transformer 3 to an overcurrent detector 23. When the fault current becomes over predetermined level, a signal is fed to the circuit 42, which has function for limiting time in response to the necessity to deenergize the coil 32 when predetermined conditions are satisfied to thereby open the electrode 31.
COPYRIGHT: (C)1979,JPO&Japio
JP13380677A 1977-11-08 1977-11-08 Expired JPS611978B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13380677A JPS611978B2 (en) 1977-11-08 1977-11-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13380677A JPS611978B2 (en) 1977-11-08 1977-11-08

Publications (2)

Publication Number Publication Date
JPS5467655A true JPS5467655A (en) 1979-05-31
JPS611978B2 JPS611978B2 (en) 1986-01-21

Family

ID=15113463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13380677A Expired JPS611978B2 (en) 1977-11-08 1977-11-08

Country Status (1)

Country Link
JP (1) JPS611978B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS571040U (en) * 1980-06-02 1982-01-06
JPS571041U (en) * 1980-06-02 1982-01-06
JPS573332U (en) * 1980-06-03 1982-01-08

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS571040U (en) * 1980-06-02 1982-01-06
JPS571041U (en) * 1980-06-02 1982-01-06
JPS573332U (en) * 1980-06-03 1982-01-08

Also Published As

Publication number Publication date
JPS611978B2 (en) 1986-01-21

Similar Documents

Publication Publication Date Title
JPH02250670A (en) Switching power supply
JPS5467655A (en) Distribution line shortage protector
JPS5467651A (en) No interruption power supply apparatus
JPS54144922A (en) Control system for switching power
JPS5576578A (en) Overdischarge-preventing circuit for battery
JPS5680373A (en) Controlling device for arc welding machine
JPH02246702A (en) Controller for rolling stock current collector
JPS5484225A (en) Switching power source circuit
JPS5537681A (en) Automatic stop unit for transformer
JPS5816310A (en) Static type automatic voltage controller
JPS5472439A (en) Uniform-pressure underwater switchboard
JPS5317948A (en) Protective circuit for overcurrent
JPS5384138A (en) Over currenct protective circuit
JPS6149661A (en) Power unit
JPS5478450A (en) Operating circuit for circuit breaker
JPS63202265A (en) Overcurrent detecting circuit
JPS5395562A (en) Switch
JPH01209927A (en) Bypass circuit for ground-fault trip type zone switch
JPH04105600A (en) Field controller
JPS5458843A (en) Prevention of overvoltage in no-break power unit
JPH0249321A (en) Switch device
JPH02168807A (en) Automatic switchgear provided with overcurrent opening preventer
JPH01315220A (en) Protective circuit for overcurrent
JPH0254815A (en) Electromagnetic contactor
JPH03241624A (en) Vacuum circuit-breaker