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-22/22-216kVA/108kV
216 kVA / 108 kV Variable Frequency Series Resonant Test System
216 kVA series resonant test system with up to 108 kV output for AC withstand tests on cables, transformers, GIS and generators, tuning from 30 to 300 Hz.
- Real-time display of the frequency sweep curve
- Overcurrent and flashover protection
- Colour touch-screen LCD control
- Multiple operating modes
- Automatic frequency sweep and resonance calculation
- Modular reactors for flexible capacity matching
IEC 60060-1DL/T 849.6
Compare all 9 series resonant test systems and sizing guide →
Overview
The HUAC-22/22-216kVA/108kV is a variable frequency series resonant test system for AC withstand voltage and insulation tests on high-voltage power cables, transformers, gas-insulated switchgear (GIS) and generators in power plants, substations and electrical laboratories. Its 216 kVA rating suits high-capacitance test objects that need more power than a compact system can deliver.
A variable frequency power source drives an excitation transformer and a set of modular high-voltage reactors in series with the test object. The control unit sweeps the frequency between 30 and 300 Hz and calculates the resonant point automatically, so the power source only supplies the circuit losses.
The reactor sections can be connected in series for the full 108 kV, or in parallel for more test current at a lower voltage, matching the system to the voltage and capacitance of each test object. The capacitive voltage divider measures the test voltage and also acts as compensation capacitance for low-capacitance objects.
Typical system components
- Variable frequency power source with touch-screen control unit
- Excitation transformer
- Four modular high-voltage reactor sections
- Capacitive voltage divider (measurement and compensation)
See also the 75 kVA / 75 kV and 110 kV / 220 kV systems, or compare the full range.
Technical specifications
| General | |
|---|---|
| Model | HUAC-22/22-216kVA/108kV |
| Rated capacity | 216 kVA |
| Output | |
| Rated voltage | 108 kV |
| Rated current at 108 kV | 2 A |
| Frequency range | 30 – 300 Hz |
| Configuration | |
| Reactors | Modular, multi-stage, series or parallel connection |
| Voltage divider | Dual function: measurement and compensation |
| Protection | |
| Protection functions | Overcurrent, flashover discharge |
| Control | |
| Display | Colour touch-screen LCD |
| Operating modes | Multiple selectable modes |
| Frequency tuning | Automatic sweep and resonance calculation |
Specifications may change without notice. Contact us for the latest datasheet.
Applications
High-voltage power cablesPower transformersGISGeneratorsPower plants and substationsElectrical test laboratories
Downloads
The datasheet and user manual for this instrument are sent on request, usually within one business day.
Frequently asked questions
What is the rated current?
At the full 108 kV with all reactor sections in series, the rated current is 2 A (216 kVA ÷ 108 kV). Connecting reactor sections in parallel gives more current at a lower test voltage for high-capacitance objects such as long cables; we confirm the configuration for your test objects in the quotation.
What can the 216 kVA / 108 kV system test?
AC withstand and insulation tests on high-voltage power cables, power transformers, GIS and generators, in power plants, substations and electrical laboratories.
Is a test frequency between 30 and 300 Hz accepted?
Yes. Cable standards such as IEC 60502-2 and IEC 60840 allow after-installation AC voltage tests at 20 to 300 Hz. The system finds the resonant frequency for each test object automatically within its 30–300 Hz range.
How do I know if 216 kVA is enough for my cable?
The required capacity depends on the cable capacitance, the test voltage and the test frequency. Send us the cable type, cross-section, length and the required test voltage, and our engineers will calculate it. See our sizing guide on the series resonant test system page.
What protection does the system have?
The control unit trips on overcurrent and on flashover of the test object, so a breakdown is detected and the output is switched off immediately.
Have another question? Ask our application engineers.
Request a quote
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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.