An electronic method for detecting an earth fault on a fully insulated battery system that fails to safety in the event ofs upply, component or connection failure, is described. The particular application to battery-driven coal-mine locomotives is discussed, and a device recently built and tested by the authors for this purpose is described in detail. The device is such that intrinsic safety for methane-air mixtures may be achieved.
Fail-safe earth-fault-detection devices for battery supplies
Fehlersichere Erdschlussanzeige fuer Batteriestromversorgung
Proceedings of the Institution of Electrical Engineers ; 121 , 8 ; 829-830
1974
2 Seiten, 2 Bilder, 5 Quellen
Aufsatz (Zeitschrift)
Englisch
Kraftfahrwesen | 1988
|Self Latching Indicators for Fail-Safe Fault Display
Emerald Group Publishing | 1990
|FAIL-SAFE CONTROL DEVICE AND FAIL-SAFE CONTROL METHOD
Europäisches Patentamt | 2019
|