UHV Series Resonant Test System for High-Voltage AC Withstand Testing

The UHV Series Resonant System is engineered for precision AC withstand voltage testing of critical power infrastructure including cross-linked cables, hydro generators, main transformers, and GIS equipment. Certified for municipal and county-level high-voltage test departments, this system sets the standard for electrical safety verification.

Product Parameters

The work environment

Main technical parameters and functions of the device

Exciter transformer

Variable frequency power supply

High voltage reactor

Capacitor divider

Key Applications

• Cross-linked cable commissioning tests

• Transformer routine maintenance

• Gas-insulated switchgear (GIS) diagnostics

• Busbar insulation verification

• Hydroelectric generator acceptance testing

System Configuration

Complete test solution includes:

• Frequency conversion control power supply - Precision 0.1Hz stepping

• Excitation transformer - Multiple tap configurations

• High-voltage reactor - Modular design for flexible combinations

• Capacitive voltage divider - ±1% measurement accuracy

• Compensation capacitor (optional) - For extended range testing

Technical Advantages

Advanced Protection System

• Multi-stage overvoltage protection (adjustable trip points)

• Zero-start interlock safety circuit

• Real-time system detuning detection

• Sample flashover protection (≤1ms response)

Operational Features

• Three test modes:

1. Fully automatic - One-touch test sequencing

2. Manual mode - Complete operator control

3. Auto-tune with manual boost - Optimal balance

• DSP-based platform with upgradeable firmware

• 10.4" LCD with real-time sweep curve display

• 500-test data storage with alphanumeric coding

Field Performance Benefits

• 55% lighter than conventional test sets

• Resonance point identification within 30 seconds

• Customizable frequency sweep range (20-300Hz)

• Industrial-grade IP52 enclosure for site durability

Compliance Standards

Meets or exceeds requirements of:

• IEC 60270 Partial Discharge Measurement

• GB/T 16927.1-2011 HV Test Techniques

• DL/T 849.1-2019 Power Equipment Test Regulations

The UHV Series Resonant System represents the next generation of high-voltage test technology, combining advanced DSP control with practical field operation features for power utilities and electrical contractors.