HIGH VOLTAGE FACILITY COMPRISING ELECTRIC MOTOR

摘要

PURPOSE: The invention enables more than one electric motor to be used in a facility connected directly to a high voltage supply network and it is unnecessary to install an oil charge transformer whose reactance consumes a void power. CONSTITUTION: The facility comprises an insulated wire and one or more than one electric machines connected for an overcurrent via the insulated wire. At least one magnetic circuit among these electric machines is connected directly to a high voltage supply voltage over 36 kV. An insulation part of the electric machine is constructed by a cable arranged in a winding part, and the cable comprises one or more than one current-carrying wire(31) which is surrounded by an inner semi-conducting layer(32), an outer semi-conducting layer(34) and a middle insulation layer(33) and which has a number of small wires(36). The wires are connected in parallel group-wisely.