SE8201412L - OVERVOLTAGE PROTECTION FOR ELECTRICAL INSTALLATIONS - Google Patents

OVERVOLTAGE PROTECTION FOR ELECTRICAL INSTALLATIONS

Info

Publication number
SE8201412L
SE8201412L SE8201412A SE8201412A SE8201412L SE 8201412 L SE8201412 L SE 8201412L SE 8201412 A SE8201412 A SE 8201412A SE 8201412 A SE8201412 A SE 8201412A SE 8201412 L SE8201412 L SE 8201412L
Authority
SE
Sweden
Prior art keywords
wires
event
varistor
overvoltage protection
voltage
Prior art date
Application number
SE8201412A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE447856B (en
Inventor
W Dickmann
Original Assignee
Bettermann Obo Ohg
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 Bettermann Obo Ohg filed Critical Bettermann Obo Ohg
Publication of SE8201412L publication Critical patent/SE8201412L/en
Publication of SE447856B publication Critical patent/SE447856B/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Thermistors And Varistors (AREA)

Abstract

In the case of overvoltage protection circuit for electrical systems, especially for electronic measurement, control and regulating systems, having a voltage-dependent resistor, especially a varistor, the current surges and voltage spikes which occur on pairs of wires in the event of atmospheric disturbances being limited, in order that said current surges or voltage spikes which occur on pairs of wires in the event of atmospheric disturbances are limited to values which are safe for electrical loads, it being ensured at the same time however, that the operating voltage does not fall below the value necessary to maintain the operation of the electrical apparatus in the event of any disturbance, it is proposed that a varistor (V1) be connected between the two wires (a, b) of a cable and that the two wires (a, b) be connected to chassis or to earth (E) via in each case one further varistor (V2 or V3 respectively). <IMAGE>
SE8201412A 1981-03-14 1982-03-08 OVERVOLTAGE PROTECTION CONNECTION FOR ELECTRICAL INSTALLATIONS, SEPARATELY FOR ELECTRONIC MET, CONTROL AND CONTROL SYSTEMS SE447856B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813109883 DE3109883C2 (en) 1981-03-14 1981-03-14 Surge protection circuit for electrical systems

Publications (2)

Publication Number Publication Date
SE8201412L true SE8201412L (en) 1982-09-15
SE447856B SE447856B (en) 1986-12-15

Family

ID=6127271

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8201412A SE447856B (en) 1981-03-14 1982-03-08 OVERVOLTAGE PROTECTION CONNECTION FOR ELECTRICAL INSTALLATIONS, SEPARATELY FOR ELECTRONIC MET, CONTROL AND CONTROL SYSTEMS

Country Status (3)

Country Link
CH (1) CH655620B (en)
DE (1) DE3109883C2 (en)
SE (1) SE447856B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632224A1 (en) * 1986-09-23 1988-04-07 Bettermann Obo Ohg Device for monitoring varistors which are integrated in a circuit
KR100580248B1 (en) * 2003-09-20 2006-05-16 삼성전자주식회사 Surge protector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038990A (en) * 1975-11-19 1977-08-02 Medtronic, Inc. Cautery protection circuit for a heart pacemaker
US4089032A (en) * 1976-09-08 1978-05-09 William Dell Orfano Plug-type transient surge suppressor
DE2714411A1 (en) * 1977-03-31 1978-10-05 Siemens Ag OVERVOLTAGE PROTECTION DEVICE

Also Published As

Publication number Publication date
CH655620B (en) 1986-04-30
DE3109883A1 (en) 1982-09-23
DE3109883C2 (en) 1985-05-30
SE447856B (en) 1986-12-15

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