
Reliable 3km Series Resonant Tester for Voltage Cables. 1-Year Warranty Coverage: Covers all quality problems free of charge during the warranty period. Lifetime Technical Support: Provides lifetime technical consulting and spare parts provision. Rapid Response Time: Professional advice provided within 2 hours (working time) or 12 hours (non-working time). High Stability & Reliability: System remains functional after high voltage to earth short circuits with strong overload ability. Powerful Auto Tuning: Auto scans 30-300Hz, finds resonant point, and locks frequency with 0.01Hz resolution. Comprehensive Protection: Features zero position, over-voltage, over-current, and flashover protection. Flexible Test Modes: Supports automatic/manual tuning and voltage regulation for safe operation. User-Friendly Interface: Full touch screen with integrated parameter setting, control, and data storage.