ZA89779B - Protection device against excess voltages - Google Patents

Protection device against excess voltages

Info

Publication number
ZA89779B
ZA89779B ZA89779A ZA89779A ZA89779B ZA 89779 B ZA89779 B ZA 89779B ZA 89779 A ZA89779 A ZA 89779A ZA 89779 A ZA89779 A ZA 89779A ZA 89779 B ZA89779 B ZA 89779B
Authority
ZA
South Africa
Prior art keywords
trip signal
device against
protection device
exceeded
leakage current
Prior art date
Application number
ZA89779A
Inventor
Reinhard Solleder
Solleder Reinhard
Reinhard Schmid
Schmid Reinhard
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 ZA89779B publication Critical patent/ZA89779B/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
    • H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

A protective device against overvoltages in electrical installations, using varistors in a shunt path, which for their part are monitored by a monitoring device for an increase in the leakage current which is not consistent with correct operation and, if necessary, are switched off. It is provided according to the invention that, in addition to producing a trip signal if a specific leakage current is exceeded, the monitoring device (6) also produces a trip signal if a specific predetermined time duration is exceeded in this case and that these two events are processed in an AND-gate, at whose output the actual trip signal is emitted. <IMAGE>
ZA89779A 1988-02-04 1989-02-01 Protection device against excess voltages ZA89779B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3803328 1988-02-04

Publications (1)

Publication Number Publication Date
ZA89779B true ZA89779B (en) 1989-09-27

Family

ID=6346622

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA89779A ZA89779B (en) 1988-02-04 1989-02-01 Protection device against excess voltages

Country Status (5)

Country Link
EP (1) EP0326903B1 (en)
AT (1) ATE103428T1 (en)
DE (1) DE58907258D1 (en)
ES (1) ES2050726T3 (en)
ZA (1) ZA89779B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT405777B (en) * 1991-01-31 1999-11-25 Biegelmeier Gottfried DISCONNECTING DEVICE FOR SURGE PROTECTORS
FR2902580B1 (en) * 2006-06-20 2008-10-17 Soule Prot Surtensions Sa OVERCURRENT PROTECTION DEVICE WITH IMPROVED DISCONNECTION SAFETY CAPABILITY AND CORRESPONDING METHOD
DE102008016589A1 (en) * 2008-03-31 2009-10-01 Weidmüller Interface GmbH & Co. KG guard
GB0919699D0 (en) * 2009-11-11 2009-12-30 Kitchener Renato Fault diagnostics, surge detection and failure prediction method
DE102016000355A1 (en) * 2015-09-11 2017-03-16 DEHN + SÖHNE GmbH + Co. KG. Arrangement for the safe, independent of switchgear or fuses, mains-side separation of overvoltage protection devices in the case of critical operating conditions
CN113708336A (en) * 2020-05-21 2021-11-26 菲尼克斯电气公司 Overvoltage protection device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029453C2 (en) * 1980-08-02 1984-03-08 Dehn + Söhne GmbH + Co KG, 8500 Nürnberg Device arrangement for network connection
AT372224B (en) * 1981-08-06 1983-09-12 Biegelmeier Gottfried OVERVOLTAGE ARRESTER WITH SHORT-DELAYED DISCONNECTING DEVICE
DE3522260A1 (en) * 1984-08-27 1986-02-27 Siemens AG, 1000 Berlin und 8000 München Electrical installation system for supplying loads from a network
EP0173016A3 (en) * 1984-08-27 1987-04-22 Siemens Aktiengesellschaft Electric installation system with overvoltage arresters

Also Published As

Publication number Publication date
EP0326903A1 (en) 1989-08-09
ATE103428T1 (en) 1994-04-15
ES2050726T3 (en) 1994-06-01
EP0326903B1 (en) 1994-03-23
DE58907258D1 (en) 1994-04-28

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