No halo testing transformer

No halo testing transformer is mainly used to produce no partial discharge of high voltage AC power supply, characterized by a low voltage winding with last unit voltage regulator, from zero make a smooth continuous adjustment to any scheduled voltage. In the use of various occasions, running time is not the same, the running time changes between short time operation and long time operation, rated output capacity of short time operation mode is much bigger than continuous operation. No halo testing transformer using glass filament winding epoxy-resin insulation tube as shell, the results of this transformer under the rated voltage will generate almost no partial discharge, so it is ideal equipment for partial discharge measurement.