Turnkey High Voltage Resonant Test Set Variable Frequency AC Withstand Equipment for GIS, Transformers & XLPE Cables

The Turnkey High Voltage Resonant Test Set is a comprehensive, factory-tested diagnostic package engineered for heavy-duty electrical commissioning and preventive maintenance. Whether you are testing 110kV, 220kV, or 500kV long-distance power cables or 1000kV GIS substations, this equipment provides unmatched reliability and precision. As a complete turnkey setup—comprising variable frequency power sources, excitation transformers, high-voltage reactors, capacitive voltage dividers, and optional isolation transformers—it eliminates compatibility issues and guarantees plug-and-play field deployment for international electric power bureaus and testing laboratories.

• Full-Spectrum Insulation Diagnosis: Ideal for detecting latent insulation defects, manufacturing flaws, and installation damage in heavy electrical assets.

• Resonant Frequency Auto-Tuning: Intelligent digital controller automatically sweeps and locks onto the resonance point within seconds.

• Low Noise & Thermal Stability: Operates at noise levels under 65dB with a continuous 60-minute thermal rating (winding temp rise ≤ 65K).

• Comprehensive Component Architecture: Integrates protective damping resistors, surge arresters, and compensation capacitors for ultimate system protection.

• Q1: Can this system be customized for containerized mobile testing vehicles?

  • A1: Yes! We offer custom containerized or trailer-mounted solutions for on-site utility testing, allowing rapid transport and deployment across remote substation sites.

• Q2: What maintenance is required for the epoxy-cast high-voltage reactors?

  • A2: The epoxy-cast reactors are maintenance-free, featuring moisture-resistant, high-mechanical-strength insulation that requires only periodic visual inspection and dust cleaning before field use.

Established in 2005, Sansion Power Electric comprises technical experts with over 20 years of experience in R&D, manufacturing, and marketing of power electrical testing products. Our solutions are widely applied across power electric, railroad, energy conservation and environment protection, water conservancy, petrochemical industry, aerospace, and other sectors.

Sansion Power Electric includes R&D department, instruments manufacturing workshop, HV workshop, sample exhibition room, HV testing laboratory, quality control department, general office, sales departments, and information office. We currently employ over 80 staff members, including 20 technical engineers.

We have obtained ISO9001 quality system certification, and all products strictly conform to international IEC and Chinese state standards.