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Products Description
The HMYDQW-150KVA/280KV Power-Frequency Partial Discharge-Free Test Transformer System is primarily used for power-frequency withstand voltage tests and partial discharge detection of power equipment. It is suitable for preventive testing of power generation, transmission, and transformation equipment (such as transformers, switches, and cables). Structurally, it features a single-phase insulated cylindrical enclosure, making it suitable for applications requiring high partial discharge performance, high voltage, and fixed installation.
product Parameters
Rated Capacity: 150 kVA
Input Voltage/Current: 0.4 kV / 375 A
High-Voltage Output: 0 ~ 280 kV (continuously adjustable)
High-Voltage Current :0.53 A
Measurement Winding Ratio 1000 : 1
Partial Discharge Level ≤1–3 pC (≤250 kV); ≤3–5 pC (≤280 kV)
Waveform Distortion Rate ≤3%
Impedance 3%–12%
Operating Time 30 min under rated conditions; continuous operation possible at 2/3 rated conditions
Control Console (including voltage regulator) Rated Capacity 150 kVA
Input/Output 0.4 kV / 375 A; Output 0–400 V
Protection Functions Overcurrent, zero-position start, gate switch, emergency stop, automatic zero-return after withstand voltage test
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