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
Features & Benefits
Feature Benefit
Operating voltage: to 200 kV and 6000 A The wide operating range for voltage and current gives test facilities the flexibility for testing all sizes of power transformers with a single setup.
Wide measurement range
  • Provides continuous testing capability
  • No need for changing taps during the test
  • High accuracy is maintained throughout the entire range
Burden compensation
  • Minimizes CT ratio errors to virtually zero.
  • No need to compensate the lead lengths.
Partial discharge: < 10 pC Low discharge levels ensure the test setup has a negligible impact on any measurement, or those where partial discharge is tested.
Specifications

 

Model 7022 7022/4000 7022/6000
Operating current rating

(at 50/60 Hz)

 2000 A 4000 A 6000 A
Operating voltage (max)

(line to neutral @ 50/60 Hz)

 200 kV 200 kV 200 kV
Withstand voltage

(line to neutral @ 50/60 Hz)

 240 kV 240 kV 240 kV
Partial discharge < 10 pC @ 200 kV < 10 pC @ 200 kV < 10 pC @ 200 kV
CT nominal ratio 2000:1 2000:1 2000:1
Magnitude and phase shift ratio error ≤ 20 ppm ≤ 20 ppm ≤ 20 ppm
Operating temperature range – 5 °C to 40 °C – 5 °C to 40 °C – 5 °C to 40 °C
Operating Humidity Range (non-condensing) 5 % to 80 % RH 5 % to 80 % RH 5 % to 80 % RH
Environmental Conditions Indoor Use Only Indoor Use Only Indoor Use Only
Overall Height: mm (in) 2752 (108.4) 2752 (108.4) 2822 (111.1)

 

Information Request