1.according to your test to connect the work line. The shell of the oil-immersed transformer and the housing of the operating system must be reliably grounded. The X-side of the high-voltage winding of the test transformer and the F-side of the measuring winding must be reliably grounded.
2.when operating cascade test, the second and third test transformer low-voltage winding into the X-side, measuring the F-side winding and high-voltage winding X-side are connected to the test transformer shell. The enclosure of the second and third stage test transformers must be grounded through the insulation bracket.
3.Before connecting to the power supply, the operating system regulator must be transferred to zero, turn on the power, and begin to boost.
4.Rotary Regulator Handwheel boost at constant speed from zero, until test voltage, and pay close attention to the measurement and the test case., If the test instrument found that the measurement instrument is abnormal, should immediately buck, cut off the power to identify the situation.
5.after the test is completed, should return to zero regulator within a few seconds, then cut off the power.
6. this product shall not exceed the rated parameters.
