1.Power frequency test transformer

Now we have two types of test transformer:
YD-Relative humidity of HV component(Non condensing)
Voltage 5kV ~ 500kV/Capacity 5kVA ~ 1000kVA

YDT-Series modular type(epoxy barrel) test transformer
Voltage 10kV ~ 1500kV/capacity 1.0kVA ~ 1500kVA

2.Environment

• Maximum Altitude 1000 m 
• Altitude increases 100m, and rated voltage lowers 1%
• Operation temperature of HV component 3ºC~ + 45ºC
• Relative humidity of HV component(Non condensing) 95 %
• Operation temperature of electrical component 10ºC~ + 45ºC
• Relative humidity of electrical components (Non condensing) 80 %
• Storage and transport temperature 20ºC~ + 60ºC
• Anti-seismic 8 grade
• Grounding resistance <1.0 
• No dust

3.Main technical parameter

• Rated voltage:1.0kV ~ 1500kV(and above)
• Rated capacity: 1.0kVA ~ 1500kVA(and above)
• Noise:65dB(2m away from equipment)
• PD level: 80% of rated voltage, PD2pC(or smaller as users required)
• Operation duty : at rated capacity, 1 hour on, 1hour off, 3-6 times one day; Continuously working at 50% of rated capacity(Or other duration according to test requirement)