Products Description
Product description
- HMCXZ-3680KVA/500KV series resonant test set is specifically designed and manufactured for AC withstand voltage testing of 110kV and 220kV high-voltage power cables, as well as circuit breakers, GIS, insulators, wall-penetrating busbars, power transformers, and current transformers.
Products Parameters
- Rated Capacity 3680 kVA
- Rated Voltage 230 kV / 500 kV (two output options)
- Rated Current 16 A (for 230 kV); 7.36 A (for 500 kV)
- Input Power Single-phase 220 V or three-phase 380 V, 50 Hz
- Operating Frequency 30–300 Hz
- Output Voltage Waveform Distortion ≤1%
- Continuous Operating Time at Rated Load 60 min
- Temperature Rise (after 60 min) ≤65 K
- Quality Factor (Internal Q) ≥30 (f=45 Hz)
- Measurement Accuracy System RMS Class 1.5
- Protection Functions Overcurrent, overvoltage, and test specimen flashover protection
- Ambient Temperature -15°C to 45°C
- Relative Humidity ≤90% RH
FAQs
Q: What are the capacitance, voltage, test duration, and frequency for a 110 kV/630 mm² cable with a length of 3 km?
A: Capacitance ≤ 0.603 μF, maximum test voltage 128 kV, test duration 60 min, frequency 30–300 Hz
Q: What is the maximum continuous withstand time?
A: Continuous operation for 60 minutes under rated load; short-term withstand time of 1 minute for 500 kV equipment.
Q: What smart features does the variable-frequency power supply have?
A: 7-inch true-color touchscreen; automatic frequency scanning to find resonance points, automatic resonance tracking, and automatic voltage ramp-up for withstand testing; real-time display of waveforms and electrical parameter data; automatic saving of test data with historical query capability; status prompts throughout the process, and audible and visual alarms for out-of-limit conditions.
Products Details
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