ZA89779B - Protection device against excess voltages - Google Patents
Protection device against excess voltagesInfo
- 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
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>
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)
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)
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 |
-
1989
- 1989-01-23 EP EP89101139A patent/EP0326903B1/en not_active Expired - Lifetime
- 1989-01-23 DE DE89101139T patent/DE58907258D1/en not_active Expired - Fee Related
- 1989-01-23 ES ES89101139T patent/ES2050726T3/en not_active Expired - Lifetime
- 1989-01-23 AT AT89101139T patent/ATE103428T1/en not_active IP Right Cessation
- 1989-02-01 ZA ZA89779A patent/ZA89779B/en unknown
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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