7022 Compensated Current Transformer

  • Compensated Current Transformer
  • Operating Voltage up 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 up 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 one setup.
Wide Measurement Range Provides continuous testing capability, no need for changing taps during the test. The high accuracy is maintained in the entire range.
Burden Compensation Minimizes CT ratio errors to almost zero or negligible level. No need to compensate the leads length.
Partial Discharge < 10 pC Such low levels ensures the test setup has no or 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
Ratio Error

(for magnitude and phase shift)

 ≤ 20 ppm ≤ 20 ppm ≤ 20 ppm
Temperature Range

(Operating)

 – 5 °C to 40 °C – 5 °C to 40 °C – 5 °C to 40 °C
Relative Humidity Range

(Operating)

 5 % to 80 % RH (non-condensing) 5 % to 80 % RH (non-condensing) 5 % to 80 % RH (non-condensing)
Environmental Conditions Indoor Use Only Indoor Use Only Indoor Use Only
Overall Height: mm (in) 2752 (108.4) 2752 (108.4) 2822 (111.1)

 

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