GB1527962A - Electrical protection apparatus - Google Patents

Electrical protection apparatus

Info

Publication number
GB1527962A
GB1527962A GB10634/77A GB1063477A GB1527962A GB 1527962 A GB1527962 A GB 1527962A GB 10634/77 A GB10634/77 A GB 10634/77A GB 1063477 A GB1063477 A GB 1063477A GB 1527962 A GB1527962 A GB 1527962A
Authority
GB
United Kingdom
Prior art keywords
electrical protection
protection apparatus
discharge path
march
supply voltage
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.)
Expired
Application number
GB10634/77A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1527962A publication Critical patent/GB1527962A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/093—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Liquid Crystal Substances (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Relay Circuits (AREA)

Abstract

1527962 Electrical protection apparatus SIEMENS AG 14 March 1977 [12 March 1976] 10634/77 Heading H2K Electrical protection apparatus, e.g. an overcurrent relay comprises an integration circuit 41-49 which includes an integration capacitor 43 and a discharge path (resistor 49, transistor 46) therefor, the discharge path including an electronic switch 46 arranged to respond to the supply voltage to the apparatus so as to block the discharge path in the absence of supply voltage.
GB10634/77A 1976-03-13 1977-03-14 Electrical protection apparatus Expired GB1527962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762611014 DE2611014B2 (en) 1976-03-13 1976-03-13 ELECTRONIC OVERCURRENT RELAY

Publications (1)

Publication Number Publication Date
GB1527962A true GB1527962A (en) 1978-10-11

Family

ID=5972604

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10634/77A Expired GB1527962A (en) 1976-03-13 1977-03-14 Electrical protection apparatus

Country Status (9)

Country Link
JP (1) JPS52111645A (en)
AT (1) AT346415B (en)
BE (1) BE852315A (en)
CH (1) CH604402A5 (en)
DE (1) DE2611014B2 (en)
FR (1) FR2343349B1 (en)
GB (1) GB1527962A (en)
NO (1) NO145179C (en)
SE (1) SE7702715L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271895A (en) * 1992-10-23 1994-04-27 Smiths Industries Plc Relay operating system.

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2911797C2 (en) * 1979-03-26 1985-04-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Electronic overcurrent release
IT1193453B (en) * 1979-09-03 1988-06-22 Puntimatic Snc D Musiani Franc OVERCURRENT AND LACK OF PHASE DETECTOR DEVICE
US4331998A (en) * 1980-04-15 1982-05-25 Westinghouse Electric Corp. Circuit interrupter with digital trip unit and style designator circuit
US4513342A (en) * 1983-01-31 1985-04-23 General Electric Company Current-squared-time (i2 t) protection system
JPS6185008A (en) * 1984-10-01 1986-04-30 光商工株式会社 Current alarm appliance
CH672039A5 (en) * 1986-10-31 1989-10-13 Sprecher & Schuh Ag
JP2007167044A (en) * 2005-12-26 2007-07-05 Meiwa Kk Tray for pot

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271895A (en) * 1992-10-23 1994-04-27 Smiths Industries Plc Relay operating system.

Also Published As

Publication number Publication date
FR2343349B1 (en) 1981-10-02
NO770879L (en) 1977-09-13
SE7702715L (en) 1977-09-13
BE852315A (en) 1977-07-01
JPS52111645A (en) 1977-09-19
NO145179C (en) 1982-01-27
ATA140777A (en) 1978-03-15
DE2611014A1 (en) 1977-09-15
FR2343349A1 (en) 1977-09-30
DE2611014B2 (en) 1977-12-29
NO145179B (en) 1981-10-19
CH604402A5 (en) 1978-09-15
AT346415B (en) 1978-11-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee