PD-Free Test Transformer  is a power frequency test transformer designed, developed, and manufactured by our company by introducing and absorbing advanced foreign technology. It is widely used in manufacturers of electrical appliances, cables, motors, transformers, instrument transformers, insulation materials, and related high-voltage components, as well as in high-voltage laboratories of power, research, and universities. It can perform partial discharge and power frequency withstand voltage tests on their products.

1. Rated capacity: 30-1000kVA (customizable)

2. Rated voltage: AC 100-1200kV

3. Operating time: <5min

4. No-load loss: <4%

5. Load loss: <9%

6. Partial discharge quantity: <5PC

Product Features:

1. Strong arc extinguishing ability and strong insulation performance
2. Fireproof, non-flammable gas, intrinsically safe
3. Lightweight and highly integrated structure, integrating a gas-filled test transformer, coupling capacitor, current-limiting resistor, and voltage divider into one unit
4. Convenient transportation and installation, small footprint
5. Clean, oil-free, and maintenance-free (only requires periodic monitoring of gas pressure and density)
6. Unaffected by environmental factors, fully sealed within a metallic environment.

Traditional systems, with current-limiting resistors, coupling capacitors, and voltage dividers, have a total discharge of approximately 10pC;

Integrated systems, with built-in current-limiting resistors, coupling capacitors, and voltage dividers, have a total discharge of approximately 5pC.