How to use dry test transformer:

⒈Before use, you must read the instruction manual of the transformer and the instruction manual of the matching control box (set) in detail. Connect the connecting wire according to the manual, and the grounding wire should be well grounded.

⒉The power supply of the dry-type transformer control box (set) is AC 220V and 380V respectively, and the dry-type test transformer is output to the low-voltage side input end of the transformer through the voltage regulator. The output is continuously adjustable to the rated voltage after the variable ratio.

⒊Considering the safety of dry-type test transformers and the rigor of high-voltage test, to avoid damage to equipment or test products, our factory can provide a complete set of equipment as shown in the figure below to satisfy users:

The complete set of equipment includes: high voltage test transformer, transformer control box (set), voltage divider, ball gap protector, discharge rod, high voltage oil cup, high voltage silicon stack (for DC test), digital microammeter (for DC test) .

⒋When doing DC withstand voltage or leakage current test, you can first spin the high-voltage silicon stack, micro-ammeter, on the high-voltage output end of the high-voltage test transformer, and then gradually boost the voltage to perform the DC test.

⒌When two test transformers are connected in series (the schematic diagram is as follows), the rated output voltages of the first and second transformers are equal, and the ratio of their capacities is 2:1. The second transformer must be placed on an insulating support. To ensure insulation to the ground. When connecting in series, pay attention to the mark on the transformer (refer to the connection diagram) to make the polarity connection correct to ensure that the predetermined voltage is output. Otherwise, the output voltage is zero.