Ore mine belt incline of the 2nd Mining Department has the longest haul in the underground mining workings among all ore minings of Belaruskali. It is more than 2 kilometres. Ore comes from all crop places to pit shaft on this incline. The angle of incline on the average is 6 degrees.
There was a straight start of electric drive motor before the dispatch of equipment. Sometimes there were situations when the conveyors stopped because of the overweight. And it is a well-known fact that it is very difficult to start out an overweight conveyor. In these situations both: electric motor drives and motor starters were burning.
The use of own-produced frequency converter station SPCH together with water cooling installation UVH made on the base of frequency converters of the company Siemens Sinamics S120 и Simovert MasterDrive provided a regular continuous work of conveyor transport, reduce discharge intensity of power on the ore delivery at 37% and also increase the productivity at 20%.