HUAC-22/22-10kV
10 kV Variable Frequency Series Resonant Test System
AC withstand testing of 10 kV cables, switchgear and transformers, tuning to resonance anywhere from 30 to 300 Hz.
IEC 60060-1DL/T 849.6
MODEL HUAC-1500kVA/500kV
1500 kVA / 500 kV Variable Frequency Series Resonant Test System
1500 kVA series resonant test system with up to 500 kV output for AC withstand tests on GIS, switchgear and transformers up to 220 kV, in the lab or on site.
- Manual and automatic modes on a large touch screen
- Automatic voltage regulation, stable to within 1.0 %
- Coarse and fine frequency tuning with automatic resonance search
- Protection against overvoltage, overcurrent, flashover, detuning and discharge, with zero-start interlock and emergency stop
- Stores up to 200 test records; export by USB or print on the built-in printer
- All main components designed and manufactured in-house
IEC 60060-1DL/T 849.6
Compare all 9 series resonant test systems and sizing guide →
Overview
The HUAC-1500kVA/500kV is a high-capacity variable frequency series resonant test system for AC withstand voltage tests on gas-insulated switchgear (GIS), switchgear and power transformers rated up to 220 kV. With an output of up to 500 kV and a rated capacity of 1500 kVA, it is built for high-voltage laboratories as well as on-site acceptance testing.
All main components are designed and manufactured by HUAC: the variable frequency power source, the excitation transformer, the resin-cast high-voltage reactor and the high-accuracy capacitive voltage divider. The control unit tunes between 30 and 300 Hz in coarse and fine steps, finds the resonant point automatically and holds the test voltage stable to within 1.0 %.
System components
- Variable frequency power source: 75 kW, three-phase 380 V input, 0–400 V / 180 A output, 30–300 Hz
- Excitation transformer: 75 kVA, output taps 5 kV, 10 kV and 25 kV
- Resin-cast high-voltage reactor: 1500 kVA, 500 kV / 6 A, 589 H, with corona ring
- Capacitive voltage divider: 500 kV, 1000 pF, measurement error below 1.0 %
For lower test voltages, see the 110 kV / 220 kV and 75 kVA / 75 kV series resonant test systems, or the full range.
Technical specifications
| General | |
|---|---|
| Model | HUAC-1500kVA/500kV |
| Rated capacity | 1500 kVA |
| Max. test voltage | 500 kV r.m.s. |
| Frequency range | 30 – 300 Hz |
| Variable frequency power source | |
| Input | Three-phase 380 V ±5 %, 50 Hz |
| Output | 0 – 400 V, max. 180 A |
| Rated power | 75 kW |
| Frequency resolution / stability | 0.1 Hz / < 0.05 % |
| Dimensions / weight | 850 × 500 × 600 mm, 160 kg |
| Excitation transformer | |
| Rated capacity | 75 kVA |
| Input / output | 0 – 400 V / 5, 10, 25 kV |
| Continuous operation | 15 min |
| Dimensions / weight | 900 × 750 × 800 mm, 400 kg |
| High-voltage reactor | |
| Rated voltage / current | 500 kV / 6 A r.m.s. |
| Rated capacity | 1500 kVA |
| Rated inductance | 589 H |
| Continuous operation | 60 min |
| Dimensions / weight | Ø 800 × 1950 mm, 1500 kg |
| Capacitive voltage divider | |
| Rated voltage | 500 kV r.m.s. |
| Capacitance | 1000 pF |
| Measurement error | < 1.0 % |
| Dimensions / weight | Ø 160 × 1950 mm, 20 kg |
| Control and protection | |
| Voltage regulation | Automatic, within 1.0 % |
| Protection | Overvoltage, overcurrent, flashover, detuning, discharge, zero-start, emergency stop |
| Data | Up to 200 test records; USB export and built-in printer |
Specifications may change without notice. Contact us for the latest datasheet.
Applications
Gas-insulated switchgear (GIS)Switchgear up to 220 kVPower transformers up to 220 kVHigh-voltage test laboratoriesOn-site acceptance testing
Downloads
The datasheet and user manual for this instrument are sent on request, usually within one business day.
Frequently asked questions
What can the 1500 kVA / 500 kV system test?
It is designed for AC withstand voltage tests on GIS, switchgear and power transformers rated up to 220 kV, in high-voltage laboratories and on site. Send us the capacitance of your test objects and the required test voltage and duration, and we will confirm the configuration.
What power supply does it need?
The variable frequency power source needs a three-phase 380 V ±5 %, 50 Hz supply and is rated at 75 kW. Because the circuit is resonant, the supply only covers the losses, not the full 1500 kVA.
How long can it run at full load?
The high-voltage reactor is rated for 60 minutes of continuous operation and the excitation transformer for 15 minutes, which covers the test durations in typical GIS and transformer withstand test procedures.
How heavy is the system?
The reactor weighs about 1500 kg, the excitation transformer about 400 kg, the power source 160 kg and the voltage divider 20 kg. Plan for lifting equipment and a suitable vehicle when testing on site.
Are the test records saved?
Yes. The control unit stores up to 200 test records, which can be exported by USB or printed on the built-in printer.
Have another question? Ask our application engineers.
Request a quote
Get pricing for the 1500 kVA / 500 kV Variable Frequency Series Resonant Test System
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- You get a recommendationThe right model and options, with a datasheet and quotation.
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Variable Frequency Series Resonant Test System, XB Series
XB series resonant test system, 20–300 Hz, Q > 50, distortion < 1 %, units under 40 kg, for AC withstand tests on cables, transformers, GIS and generators.