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Megger MVCT – Medium Voltage CT Analyzer (CT-Only Version)

Megger MVCT – Medium Voltage CT Analyzer (CT-Only Version)
Megger MVCT – Medium Voltage CT Analyzer (CT-Only Version)

Make/Model: Megger MVCT
 

Product Overview
The Megger MVCT is a portable, robust test set engineered for high-precision testing of current transformers (CTs) up to 30 kV knee point. Despite its lightweight design (<10 kg), it performs a full range of CT diagnostics—saturation, ratio, polarity, phase, winding resistance, and insulation testing—across multiple taps with a single lead configuration. Ideal for modern MV substation environments, it automates complex test sequences for fast and reliable results. 
 

Included Equipment

  • MVCT test unit (CT testing enabled)
  • Connection leads and grounding accessories
  • High-visibility color TFT touch display (or configured without display for remote PC control via PowerDB/STVI) 
  • PowerDB Lite software for report generation and saturation curve plotting
  • Rugged case for field deployment and storage capability (1000+ test records) 

Technical Specifications

  • Output (CT Testing): 0–300 V AC/DC; output current up to 1 A; power capacity 300 VA 
  • Ratio Test Accuracy:
  • oCT ratios up to 2000:1: ±0.02% typical / ±0.05% max
  • 2000–5000: ±0.03% / ±0.10% max
  • 5000–20 000: ±0.05% / ±0.20% max 
  • Phase Angle Accuracy: ±3 minutes typical; ±6 minutes max; resolution 1 minute 
  • Winding Resistance: Range 0–30 Ω; accuracy ±0.5% + 3 mΩ typical (±1% + 10 mΩ max) 
  • Saturation (Knee Point): Supports testing up to 30 kV using patented multi-tap technology 
  • Insulation Resistance Test: Integrated 1 kV DC test for CT secondary conductors 
  • Interface & Memory: Sunlight-readable TFT display; can store and upload >1000 results and saturation curves for PC-based reporting 
  • Weight & Portability: <20 lb (≈9 kg); compact and rugged for field use 

Applications

  • Field and factory validation of CTs—ratio, knee point, polarity, winding resistance, and insulation metrics.
  • Automated testing across multiple taps without lead changes; ideal for multi-ratio CTs.
  • Fast commissioning and periodic verification of CT performance in substations.
  • Integrated reporting and trend tracking through PowerDB/STVI software.