ZA791814B - Small device for differential switches of high and ultra-high sensitivity and operated by triggers which are very sensitive mechanically - Google Patents
Small device for differential switches of high and ultra-high sensitivity and operated by triggers which are very sensitive mechanicallyInfo
- Publication number
- ZA791814B ZA791814B ZA791814A ZA791814A ZA791814B ZA 791814 B ZA791814 B ZA 791814B ZA 791814 A ZA791814 A ZA 791814A ZA 791814 A ZA791814 A ZA 791814A ZA 791814 B ZA791814 B ZA 791814B
- Authority
- ZA
- South Africa
- Prior art keywords
- triggers
- ultra
- operated
- small device
- differential switches
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
- H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
- H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
- H01H2083/045—Auxiliary switch opening testing circuit in synchronism with the main circuit
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT22387/78A IT1094409B (it) | 1978-04-17 | 1978-04-17 | Meccanismo particolarmente adatto per realizzare interruttori differenziali miniaturizzati ad elevata ed elevatissima sensibilita',e per essere azionato da sganciatori molto sensibili e meccanicamente delicati |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA791814B true ZA791814B (en) | 1980-05-28 |
Family
ID=11195584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA791814A ZA791814B (en) | 1978-04-17 | 1979-04-17 | Small device for differential switches of high and ultra-high sensitivity and operated by triggers which are very sensitive mechanically |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2914743C2 (xx) |
IT (1) | IT1094409B (xx) |
ZA (1) | ZA791814B (xx) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2915091C2 (de) * | 1979-04-12 | 1981-07-30 | Siemens AG, 1000 Berlin und 8000 München | Fehlerstromschutzschalter |
DE3007243C2 (de) * | 1980-02-27 | 1984-10-18 | Brown, Boveri & Cie Ag, 6800 Mannheim | Fehlerstromschutzschalter |
DE3032826C2 (de) * | 1980-08-30 | 1985-11-07 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Fehlerstromschutzschalter mit einer Prüftaste zum Einschalten eines Widerstandes in einen Prüfstromkreis |
DE3643511A1 (de) * | 1986-12-19 | 1988-06-30 | Felten & Guilleaume Energie | Mechanismus fuer einen mit einem leitungsschutzschalter kombinierten fehlerstromschutzschalter |
US5179364A (en) * | 1990-08-02 | 1993-01-12 | Terry Marquardt | Overload relay |
DE19735413B4 (de) * | 1997-08-14 | 2007-11-29 | Siemens Ag | Auslösevorrichtung für einen Schutzschalter |
CN107833804B (zh) * | 2017-10-26 | 2019-08-20 | 上海良信电器股份有限公司 | 一种断路器操作装置的锁定装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1259447B (de) * | 1963-09-19 | 1968-01-25 | Schutzapp Ges Paris & Co M B H | Fehlerstrom-Schutzschalter mit einem Doppelkniehebelschaltschloss, einem Ausloesehebel und einem elektromagnetischen Ausloeser |
DE2220558C3 (de) * | 1972-04-26 | 1975-07-24 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Fehler strom schutzschalter |
-
1978
- 1978-04-17 IT IT22387/78A patent/IT1094409B/it active
-
1979
- 1979-04-11 DE DE2914743A patent/DE2914743C2/de not_active Expired
- 1979-04-17 ZA ZA791814A patent/ZA791814B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2914743C2 (de) | 1984-04-26 |
IT7822387A0 (it) | 1978-04-17 |
IT1094409B (it) | 1985-08-02 |
DE2914743A1 (de) | 1979-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5440660A (en) | Device of inspecting position of moving portion material | |
IT7949327A0 (it) | Dispositivo commutatore sensibile apressione | |
NO151642C (no) | Fotoelektrisk anordning til avfoeling av gjenstander | |
SE7610420L (sv) | Signalbehandlingsanordning for samplingsfrekvensmodifiering | |
SE7800729L (sv) | Transport av partikelformigt material | |
SE7807322L (sv) | Forfarande och anordning for elektrisk signalbehandling | |
NO783220L (no) | Fjernsynsinnretning for fremvisning og registrering av bevegelsesbaner | |
FI803325L (fi) | Signalprocessor foer hastighetsmodulering av en avsoekningsstraole | |
ZA791814B (en) | Small device for differential switches of high and ultra-high sensitivity and operated by triggers which are very sensitive mechanically | |
JPS55102961A (en) | Multiifrequency signal detector | |
GB2026836B (en) | Sensitivity adjusting apparatus | |
JPS54136908A (en) | Device for development and etching | |
JPS54159855A (en) | Device for confirming sensitivity set value of photoelectric switch | |
SU687427A1 (ru) | Устройство дл цифрового анализа сигналов | |
NL178921C (nl) | Voor versnellingen en/of vertragingen gevoelige elektrische schakelaar. | |
JPS54124785A (en) | Sensitivity setting assistant device for nonndestructive tester | |
DK415077A (da) | Fremgangsmaade til forgasning af et organsisk fibroest materiale og produkt deraf | |
DE2962777D1 (en) | Device for the dry-development of photosensitive material | |
JPS5254281A (en) | Alarm device for indicating physically actuating potential increase | |
SE7705105L (sv) | Anordning for hantering av styckegods | |
JPS53100224A (en) | Radiation sensitive positive regist material | |
JPS5417080A (en) | Preparation of standard material for mercury analysis | |
JPS5316875A (en) | Fault detection device of actuation device | |
SE7702566L (sv) | Anordning for transport av kornformigt material | |
JPS53112468A (en) | Device for measuring degree of vacuum of vacuum switch |