MI 7202A, 7203A precision, multi-ratio reference, current transformer with carrying handle

7202A, 7203A Precision Current Transformers

  • Precision CT calibration reference standard, replaces MI Model 7020
  • Currents to 10,000 A
  • Portable: carrying handle for smaller CTs; wheels on heavier CTs
  • Passive or electronically-aided compensation
  • Large division ratio (switchable from 1000:1 to 2000:1, lower on smaller CTs)
  • Accuracy:
    • Magnitude: < 0.0015%
    • Phase: < 0.0015%
MI 7023/4000 compensated current transformer rated for 300 kV and 4000 A with minimal current division errors.

7023 Compensated Current Transformer

  • High-voltage bushing
  • Operating voltage: up to 300 kV (line to neutral)
  • Partial discharge: < 10 pC @ rated voltage
  • Rated current: up to 4000 A
  • Wide measurement range
  • Negligible current division errors
  • Burden compensation
7022/4000 compensated current transformer with burden compensation, wide measurement range

7022 Compensated Current Transformer

  • Operating voltage: to 200 kV line to neutral
  • Partial discharge: < 10 pC @ rated voltage
  • Rated current: up to 6000 A
  • Wide measurement range
  • Negligible current division errors
  • Burden compensation
MI 7021U compensated current transformer rated for 100 kV and 4000 A with burden compensation.

7021U Compensated Current Transformer

  • High-voltage bushing
  • Operating voltage: 100 kV line to neutral
  • Partial discharge: < 10 pC @ rated voltage
  • Current: up to 4000 A
  • Wide measurement mange
  • Negligible current division errors
  • Burden compensation
7021H horizontal bushing current transformer 4000 A rating

7021/4000 Horizontal Bushing

  • Voltage rating: 58 kV (up to 100 kV line to neutral)
  • Current: to 4000 A
  • Partial discharge: < 10 pC at rated voltage
  • Error control: negligible current division errors
  • Wide measurement range
7021H horizontal bushing current transformer 1000 A rating. For transformer measurements.

7021/1000 Horizontal Bushing

  • Voltage rating: 58 kV (up to 100 kV line to neutral)
  • Current: to 1000 A
  • Partial discharge: < 10 pC at rated voltage
  • Error control: negligible current division errors
  • Wide measurement range
MI 7020H/5053 two–stage–compensated current transformer for high-voltage transformer calibration

7020H 2-Stage Compensated Current Transformer

  • Passive two-stage compensation design means no lead length or resistance issues
  • Standard units feature a 50% over-range capacity for robust testing operations 
  • Current: 100 A to 5000 A 
  • Linearity: < a few ppm, allowing accurate measurements down to 1 A