The Wuhan UHV Power Technology XC and TC series are control consoles designed as the operator interface and protection unit for high-voltage test transformers. They are used in power utilities, industrial plants, metallurgy, railways, and electrical maintenance for AC power frequency withstand voltage testing and leakage current measurement on switchgear, cables, transformers, and insulation systems.

What distinguishes the XC and TC series?

The XC series are compact single-phase manual control boxes for smaller test transformers: XC-2 (2 kVA), XC-3 (3 kVA), and XC-5 (5 kVA), all operating from 220 V single-phase supply and weighing 14-18 kg. The TC series covers larger capacities from TC-10 (10 kVA, 50 kg) through TC-300 (300 kVA, 120 kg). TC models up to TC-50 offer manual operation with an optional motor-driven upgrade. TC-100 and above are motor-driven as standard, using an external voltage regulator for smooth, repeatable high-voltage ramping at a recommended rate of approximately 3 kV per second.

What protection and monitoring features are integrated?

Each console includes an overcurrent protection relay factory-preset to 80% of the test transformer rated current — adjustable for low-load testing scenarios. A next-generation digital timing relay provides a 0-999 second programmable range (extending to 9,999 hours on advanced models) for timed withstand tests with automatic shutdown. Real-time displays show output current, applied voltage, zero-position indicator, closing indicator, and timing status. Synchronized audible and visual alarms activate on overcurrent trip or timer expiration. All components are mounted on an internal frame within a sandblasted aluminum alloy enclosure for durability and portability.