HCTT 50kV/250kVA Test Transformer

Mode: HCTT 50KV/250KVA
Cylinder type                                                                                  
Noise:≤60db
Rated capacity:250kVA                                                                
Waveform deviation factor:≤3%
Input voltage: 0-400V (Can be customized according to User's feeding power)                           
No-load current: IO<8%
Output voltage: 50kV                                                                      
Measurement winding voltage:100V
Output current: 5A                                                                          
PD Level: :<2pC at 100%UH of complete test system
Frequency:50Hz / 60Hz                            
Insulation level: withstand 5kV/min (Low voltage input ending to ground
Single phase                                                                                   
Cooling methods: ONAN
Dimension: L1200mm*W1200mm*H1250mm
Dielectric loss <0.5%                                                                      
Weight: 1130 kg

Transformer Oil: 
25# transformer oil is from Karamay Refinery. The oil indicator can reach the oil level for 500KV transformers. Factory test of test transformer should use new transformer oil supplying with transformers and perform oil inspection before or after factory test. Oil inspection report should be provided when the transformer delivered filled with oil. Quality of transformer oil should meet the requirements of SH0040-91, GB2536-90, GB7595-87, SD187-86, Class II A of IEC-296 standards. Components PCB are prohibited in the oil. When doing acceptance test on-site, the oil performance should satisfy the following requirements: DGA analysis of total hydrocarbons less than 10 mg/L, the breakdown voltage of the oil should not be less than 65kV/2.5mm, dielectric loss (90°C) is not more than 0.3%, water content is not more than 10mg/L, the gas content is not more than 1%.

Principle Diagram: