Three-Phase Through-Type Current Isolating Transformer 100A Version

Meter Testing Accessory
November 13, 2025
Category Connection: Meter Testing Accessory
Brief: Discover the Three-Phase Through-Type Current Isolating Transformer 200A Version, designed for high-accuracy, wide-range current isolation in energy meter testing. Ideal for closed-link meters, it features 1:1 current isolation with electronic error compensation, ensuring precise calibration under equipotential conditions.
Related Product Features:
  • Ultra-wide range: 0.1-200 A primary and secondary with a 1:1 ratio.
  • Single-turn through-type structure minimizes loss and maximizes efficiency.
  • High output capacity: up to 140 VA at 200 A for robust performance.
  • Electronic error compensation ensures 0.01% class accuracy across the full range.
  • Secondary open-circuit and overload indication with alarm and automatic protection.
  • External status indicators and control buttons for easy operation.
  • Supports multi-ICT series primary connection with isolated secondary outputs.
  • High insulation strength (2500 V/1 min) for safety and stability.
Faqs:
  • What is the primary application of the Three-Phase Through-Type Current Isolating Transformer?
    It is primarily used for calibrating three-phase and single-phase energy meters with non-separated voltage and current circuits, as well as multi-position meter test benches requiring equipotential current supply.
  • How does the transformer ensure high accuracy?
    The transformer uses electronic error compensation and a 1:1 current isolation ratio, maintaining 0.01% class accuracy across the full range of 0.1-200 A.
  • What safety features does the transformer include?
    It features secondary open-circuit/overload detection with visual indication and alarm, automatic short-circuit protection, and high insulation strength (2500 V/1 min) between primary, secondary, and enclosure.