HCTT 150KV/350KVA Test Transformer

Mode: HCTT 150KV/350KVA
Cylinder type                                       Cooling methods: ONAN
Single phase                                          Dielectric loss: <0.5%
Frequency: 50Hz                                  No-load current ≤10%
Rated Capacity: 350kVA                      Noise level: <60db
Rated input voltage: 0.8kV                  Waveform deviation ≤3%
Rated output voltage: 150kV              Impedance voltage ≤8%
Rated output current: 4.8A                  Measuring winding voltage: 100V

Working for 60 minutes allowed at 100% rated current & voltage;
Continuous working allowed at 80% rated current & voltage; and temperature rise of transformer winding is less than 65K, temperature rise of oil surface is less than 55K.
Dimension: 1200mm*1800mm*1850mm            
Weight: 2800kg

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: