Starting or switching on no-break current supply - carried out in asynchronous method of operation current supply of auxiliary system realised across inverter output

摘要

The mains voltage (UN) is supplied to the auxiliary system for the starting of the rectifier (GR) of the static non-break current supply across the sec. side of the no-break supply current (safety rail), which following the loading of the intermediate circuit (ZK), is isolated from the mains voltage again, to a determined min. voltage. The inverter (WR) is then operated, whereby the user up to the operating of the inverter (WR) is isolated form the safety rail. The rectifier (GR) and the inverter (WR) up to the operating starting are first operated in full blocking control. The voltage supply of the auxiliary system is supported by capacitors. USE/ADVANTAGE - Gives non-problematic starting using mains voltage.