Mode: HCTT 300KV/300KVA
Cylinder Type Cooling methods: ONAN
Single phase No-load current ≤10%
Frequency: 50Hz Waveform deviation ≤3%
Rated Capacity: 300kVA Impedance voltage ≤8%
Rated voltage: 0.6kV 300kV Noise level < 60dB (Full load at 4 meter distance)
Rated Current: 500A 1A Measuring winding voltage ratio: 1000/1
PD Level: <10pC at 100%UH
Running time and temperature raise: continuous running 1 hour at 100% UH and 100%IH; Transformer winding temperature raise less than 65K, oil surface temperature raise less than 55K.
Over-current capability: withstand 60s at 120%(1.2A)IH, no damage to transformer winding.
Over-voltage capability: withstand 60s at 110%(330kV)UH, no damage to transformer insulation.
Insulation Level: 5kV/1min (measurement winding to earth; HV terminal to earth; LV winding to earth)
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%.
HIMALAYAL provides innovative products that comprise high voltage test equipment, full-set high voltage test instruments, on-site test systems and on-line monitoring systems, and services regarding tests, diagnostics and asset monitoring for clients in power industry. We help to ensure safety and reliability in the power generation, transmission and distribution.