Switching power systems

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fotka 1
fotka 1
fotka 1


An integral part of each mining complex is the electrical equipment necessary for powering and controlling individual devices. In this area, T Machinery a.s. offers APK9U contactor set for switching up to nine independent MFK400 frequency inverter drives for powering and regulation of the travel equipment of shearers and auxiliary voltage transformation. All of these devices have outputs that allow the transfer of traffic information to both the other devices in the complex and to the dispatching station on the mine surface.

All the electrical devices supplied by us are manufactured in accordance with the requirements of Directive 2014/34/EU (ATEX) and in accordance with the equivalent directives of the Russian Federation and Ukraine.


Voltage 1 140/660 V Input voltage 3 AC 500/660 V Rated powe 120 kVA
Frequency 50, 60 Hz Output voltage 3 AC 500/660 V Rated input voltage 1 000/1 140 V/AC
Maximun currency 1 200 A Input frequency 50 Hz Rated output voltage 400/500/660 V/AC
Dielectric strength 25 kA Output frequency 5 - 120 Hz Rated output current 104 A
Number of contactors 9 ks Input current 150 A Losses due to short circuits (ΔPCu) 955 W
Dimension (lenght, height, width) 2 812 x 971 x 916 mm Output current 200 A Losses when running idle (ΔPFe) 605 W
Weight 2 600 kg Dimension (length, height, width)  2 674 x 971 x 916 mm Transformer efficiency 99 %
Ambient temperature 0-40 °C Weight 2 400 kg Weight 2 630 kg


Take a look at the map below - there are points where Switching power systems have been delivered.

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