Megavar delivered HV testing and protection system commissioning for the Bluegrass BESS (Blue Grass) project in Queensland's Western Downs, working in partnership with
The SUTE ST3598Z Series offers versatile configurations for high-voltage resonant testing of capacitive loads, with frequency adjustment from 25–300 Hz and maximum test voltages up to 300 kV. Reactors can be wired in series or parallel to accommodate varying capacitance and voltage requirements, with emphasis on proper grounding to minimise impedance and protect electronic components during flashover events.
Key components and capabilities include:
Performance capabilities are application-specific, as illustrated by the following example load configurations derived from the system’s test range (all at 60-minute test duration; capacitance values include per-unit-length estimates for XLPE cables, scaled for higher voltage operation).
Load Example 1: 110 kV XLPE Cable (Cross-Section 240 mm², Capacitance 0.129 µF/km)
|
Frequency Range (Hz) |
Max Test Voltage (kV) |
Max Length (m) |
Max Capacitance (µF) |
|
30–300 |
132 |
3148 |
0.4 |
Load Example 2: 220 kV XLPE Cable (Cross-Section 400 mm², Capacitance 0.118 µF/km)
|
Frequency Range (Hz) |
Max Test Voltage (kV) |
Max Length (m) |
Max Capacitance (µF) |
|
25–300 |
216 |
1287 |
0.15 |
Additional reference capacitances for other equipment (e.g., transformers, generators) are provided in the system manual for estimation purposes, enabling adaptation to non-tabulated products up to the rated 300 kV output.
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Megavar engineers use this unit on commissioning projects across Australia. Hire it from a team that knows it inside out.
It is used for high-voltage AC withstand testing on long-length cables, GIS, and transformer windings. It validates insulation performance under stress conditions as per international standards.
Resonant systems require far less input power to reach high voltages because they rely on resonance between inductive and capacitive elements. This makes them compact and efficient, ideal for testing very long or high-capacitance loads.
It complies with IEC 62067, IEC 60840, IEC 60060-3, and IEEE 400.4, depending on configuration and application.
Typical systems can output 100–600 kV AC RMS continuously, with test durations of up to 60 minutes. Duration and voltage depend on the application and the system configuration.
• Extra-high-voltage cable systems (HV and EHV)
• GIS switchgear assemblies
• Large power transformers
• Shunt reactors, cable terminations, and insulators
Yes. Resonant test sets are often skid-mounted or containerised and configured for transport to substations, wind farms, or industrial test yards.
Yes. You can connect MPD 600 system to monitor PD during the withstand test.
• HV resonant test system: control unit, excitation transformer, reactor(s), HV divider
• Interconnect cables and earthing system
• Technical drawings and connection guide
• (Optional) MPD 600 for PD testing
Yes, due to the specialist knowledge required, this set will only be wet hired along with Megavar’s testing resources to operate it.
Typically 3–5 days, depending on mobilisation and demobilisation requirements. Weekly and monthly hire rates are available.
Submit your rental request online, and our team will respond promptly with availability, pricing, and expert advice.
Once confirmed, we’ll quickly process your booking and dispatch the equipment. Delivery and collection can be arranged to suit your schedule.
Get to work with reliable, industry-grade test equipment. Our technical team is available to support you every step of the way.
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