| 摘要 |
FIELD: railway transport; car supply means. ^ SUBSTANCE: proposed set includes additional system for diagnosing operation of high-voltage unit, checking dc voltage in 110 V mains and voltages across outputs of step-up voltage converters in static frequency converter, and static frequency converter interface module. Proposed diagnostic system contains two series interfaces, one of which makes it possible to reduce number of signals transmitted from static frequency converter, and the other provides diagnosing and control of cars in common information network. ^ EFFECT: facilitated operation of set, improved safety, reliability and quick response in control. ^ 2 cl, 3 dwg |
