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-30kV/35kV
HUAC Variable Frequency Series Resonant Test System for 10 kV & 35 kV Cable
Variable frequency series resonant test system, 30–300 Hz, with multi-stage reactors for AC withstand tests on 10 kV and 35 kV cables, transformers and GIS.
- Displays the frequency curve during tuning
- Overcurrent protection
- Touch-screen colour LCD
- Multiple operating modes
- Flashover discharge protection
- Calculates the resonant frequency for the test object
IEC 60060-1DL/T 849.6
Compare all 9 series resonant test systems and sizing guide →
Overview
The HUAC-30kV/35kV is a variable frequency series resonant test system for AC withstand voltage tests on power cables, transformers, generators, gas-insulated switchgear (GIS) and other high-voltage equipment in substations, power plants and electrical laboratories. It resonates between 30 and 300 Hz, so it meets insulation test requirements under a wide range of site conditions.
The system uses multi-stage high-voltage reactors that can be connected in series or in parallel, and a capacitive voltage divider that serves both for voltage measurement and as compensation capacitance. Together they reach resonance in the 30–300 Hz range to complete AC withstand tests on many kinds of electrical equipment.
Configuration guide: 10 kV cable withstand test
Maximum cable length per configuration, by conductor cross-section.
| Cable cross-section | 75 kVA / 75 kV | 88 kVA / 44 kV | 132 kVA / 22 kV | 176 kVA / 22 kV | 220 kVA / 22 kV | 264 kVA / 22 kV |
|---|---|---|---|---|---|---|
| 630 mm² | 0.4 km | 1.5 km | 2 km | 2.5 km | 3.5 km | 4 km |
| 300 mm² | 1.6 km | 2 km | 3 km | 4 km | 5 km | 6.5 km |
| 120 mm² | 2 km | 2.5 km | 4.5 km | 5.5 km | 7 km | 7.5 km |
| 25 mm² | 3.5 km | 4.5 km | 7 km | 9 km | 11.5 km | 14 km |
| Reactor sections | 2 or 3 | 2 | 3 | 4 | 5 | 6 |
Configuration guide: 35 kV cable withstand test
Maximum cable length per configuration, by conductor cross-section and cable voltage.
| Cable cross-section | Cable voltage | 108 kVA / 54 kV | 108 kVA / 108 kV | 135 kVA / 108 kV | 216 kVA / 108 kV | 270 kVA / 270 kV |
|---|---|---|---|---|---|---|
| 630 mm² | 35 kV | – | 0.4 km | 0.6 km | 1.0 km | 0.8 km |
| 10 kV | – | 1.5 km | 1.8 km | 3 km | 2 km | |
| 300 mm² | 35 kV | 0.6 km | 0.7 km | 1 km | 1.6 km | 1 km |
| 10 kV | 2 km | 2.2 km | 3 km | 4 km | 3.5 km | |
| 120 mm² | 35 kV | 0.7 km | 1 km | 1.2 km | 2.5 km | 1.5 km |
| 10 kV | 1.5 km | 2.5 km | 3.5 km | 5 km | 4.5 km | |
| 25 mm² | 35 kV | 1 km | 1.5 km | 2 km | 3 km | 2 km |
| 10 kV | 3 km | 4 km | 5.5 km | 8 km | 7 km | |
| Reactor sections | 4 | 4 | 4 | 4 | 6 | |
| Suitable for | Electrical equipment rated 10 kV and below | Electrical equipment rated 10 kV and below; electrical equipment rated 35 kV and below | Electrical equipment rated 35 kV and below | Electrical equipment rated 35 kV and below | Withstand voltage test of 110 kV cable, 300 mm², 0.3 km; withstand voltage tests of electrical equipment | |
Lengths are typical values; the actual length depends on the cable capacitance, test voltage and test frequency. Send us your cable data and we will confirm the configuration. See also the 35 kV and 216 kVA / 108 kV systems, or the full range.
Technical specifications
| General | |
|---|---|
| Model | HUAC-30kV/35kV |
| Frequency range | 30 – 300 Hz |
| Reactor configuration | Multi-stage, series or parallel |
| Voltage divider | Dual function: measurement and compensation |
| Protection | Overcurrent, flashover discharge |
| Display | Touch-screen colour LCD |
| Operating modes | Multiple, selectable |
Specifications may change without notice. Contact us for the latest datasheet.
Applications
Power cablesPower transformersGeneratorsGas-insulated switchgear (GIS)Substations and power plantsElectrical test laboratories
Downloads
The datasheet and user manual for this instrument are sent on request, usually within one business day.
Frequently asked questions
What can the HUAC series resonant test system test?
AC withstand voltage tests on power cables, transformers, generators, GIS and other high-voltage equipment in substations, power plants and electrical laboratories.
How long a cable can it test?
It depends on the configuration, cable cross-section and voltage. The configuration guide above lists typical lengths, for example 3 km of 35 kV, 25 mm² cable with the 216 kVA / 108 kV configuration. Send us your cable data and we will confirm it.
Why are the reactors multi-stage?
Reactor sections can be connected in series for higher test voltage or in parallel for higher test current, so the resonant frequency stays in the 30–300 Hz range for different test objects.
What does the voltage divider do?
It measures the test voltage and, for low-capacitance test objects, adds compensation capacitance to bring the resonant frequency back into range.
Which protection functions are included?
Overcurrent protection and flashover discharge protection, which shut down the output if the test object breaks down.
Have another question? Ask our application engineers.
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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.