To ensure the power supply of mining equipment with three-phase current, it is necessary to install special substations in the mines. They lower the voltage to the required values and protect against leakage currents. The whole difficulty of using transformer installations in underground mines lies in the explosion hazard, which is present due to the presence of methane and conductive dust in the air. That is why it is necessary to use only special explosion-proof installations.
Power
160 kV.A
Rated voltage HV
6.0 kV
Rated voltage LV
0.4 / 0.69 kV
Scheme and group of connection of windings
U / D-11; U / U-0
Method, voltage regulation range
PBV ± 5%
Short circuit voltage,%
3.6
length
2930 mm
height
1170
width
990 mm
Weight, t, no more
1.9