Badania przemysłowe przekształtnikowego prostownika górniczego typu NTP 54A 250/6/0,25DC

In the paper presented descriptions of control protections and diagnostics circuits of the mining converter rectifier type: NTP 54A 250/6/0,25DC. One described of control procedures of thyristor rectifier in normal operating conditions and in damage states, during galvanic short-circuits and "short rail" of the trolley wire with the rail. In paper introduced results of laboratory and industrial investigations of the mine rectifier for typical bootable tests exploitive normal and for states of the damage (the short-circuit, short rail) work conditions. Exploitaition investigations were realized on two mines: The Katowice Coal-Holding Company: Mine Murcki-Staszic, and the Coal-Company S.A.: Mine Ziemowit. Results of exploitive confirmed the rightness of worked out procedures control system and diagnostics procedures of mine rectifier.