Description
Technical Parameters
Products overview
The HMDBF is specifically designed for induction withstand voltage tests on power equipment such as transformers and voltage transformers, and is used to evaluate the longitudinal insulation of windings (turn-to-turn, layer-to-layer, section-to-section, and phase-to-phase insulation). It employs DSP digital control technology to output pure sine-wave multi-harmonic voltages (50/100/150/200 Hz or user-defined frequencies between 30 and 300 Hz). As a versatile, all-in-one unit, it can also perform voltage-current characteristic (excitation) tests and no-load current tests, making it an intelligent, multifunctional on-site testing device.
Products Parameters
- Rated Capacity 3 kVA
- Maximum Output Voltage 0–500 V (can be boosted using an external step-up transformer)
- Input Voltage Three-phase 380 V ±10% or single-phase 220 V (capacity halved)
- Power Frequency 50 Hz
- Output Frequency 50 Hz, 100 Hz, 150 Hz, 200 Hz, or continuously adjustable from 30 to 300 Hz (customizable)
- Waveform Distortion ≤2% (pure sine wave)
- Voltage Resolution 0.01 V
- Current Resolution 0.001 A
- Voltage/Current Accuracy ±0.5%
- Continuous Operating Time at Rated Load 60 minutes
- Frequency Adjustment Increment Minimum 0.1 Hz
- Voltage Adjustment Increment 1 V, 2 V, 5 V, 10 V (selectable in real time)
- Protection Functions Multiple protections including overvoltage, overcurrent, overload, overtemperature, flashover, zero-point, and undervoltage
- Operating Noise ≤40 dB
- Operating Temperature 0°C–45°C
- Relative Humidity 0–90% (non-condensing)
Products Parts
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