GF106T Portable CT PT analyzer

ct pt analyzer

GF106T CT analyzer is mainly used for field testing of Protection class CT and PT. This current transformer tester of test items mainly include excitation characteristic, CT ratio, polarity, degauss, ratio & phase error, 5% and 10% error curves, secondary winding resistance check, withstand test of power frequency alternating current and secondary load. Adopting LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to download data, with simple and convenient operation. It is a ideal current transformer test equipment for power engineering service company and electricity power utilities.



  • Power plant;
  • Oil, Gas company;
  • Electrical laboratory;
  • Railway electric company;
  • Current transformer factory;
  • Distribution cabinet company;
  • Voltage transformer manufacturer;
  • Power engineering commissioning company;
  • Electricity power bureau & power company;
  • Electrical Department of industrial and mining enterprises;


  • CT excitation curve;
  • Download data by U disk;
  • Data storage 3000groups;
  • Automatic demagnetization;
  • Electrical loop burden testing;
  • 10% error curve, 5% error curve;
  • Ratio and Phase accuracy testing;
  • Primary voltage output max 2500V;
  • Easy to operate, auto test error;
  • Auto check knee point voltage value;
  • Testing of various types of protection ct;
  • Primary current injection from 0 to 1000A;
  • Adopted the principle of increasing voltage and current;

Main functions

I. Current Transformer (CT) II. Voltage Transformer (PT)
1. Excitation curve 1. Excitation characteristic test
2. CT ratio test 2. PT ratio test
3. Polarity 3. Polarity  
4. 5% and 10% error curve 4. Withstand test of power frequency alternating current
5. Current Injecting 5. Degauss
6. Degauss 6. Ratio error, phase error
7. Ratio error, phase error 7. Calculation of knee point value 
8. Withstand test of power frequency AC 8. Actual secondary load test(Burden test)
9. Auto calculation of excitation knee point value  9. Resistance test
10. Actual secondary load test(Burden test)
11. Resistance test


Electrical parameters
Accuracy 0.2%, 0.5%
Power supply AC 220V±10% or AC 110V±10%, 50/60Hz
Excitation voltage output 0-2500Vrms 
Excitation current output 0-5Arms (20A peak-value)
Large current output 0-1000A
Large current cable length 4m, 95mm²
Accuracy ≤0.2%
Frequency 50Hz or 60Hz optional
Secondary winding DC resistance measurement Range 0.1-300Ω
Accuracy ≤0.2%
Secondary actual load measurement Range 0.1VA-1000VA
Accuracy ≤0.2%
CT/PT phase error measurement Accuracy ±4min
Resolution 0.01min
CT ratio error measurement Range ≤25000A/5A(5000A/1A)
Accuracy ≤0.2%
PT ratio error measurement Range 1-500KV
Accuracy ≤0.2%
PT secondary voltage 100,110,120,220,380, 100√3,110√3,120√3,220√3, 100/3,110/3,120/3,220/3
LCD display 5.6' inch blacklight LCD
Cable Length Primary 4m; Secondary 5m; others customized
PC control software Yes, Optional
Printer Yes, Thermal printer
Reference standards GB1207-2006, GB1208-2006, GB16847-1997
IEC60044-1, IEC60044-6, IEC61869-1,2,3, ANSI/IEEE C57.13
Safety standards GB 4793.1-2007
EMC EMC standard 89/336/EEC
FCC Subpart B of Part 15 Class A
IEC 1000-4-2 /3 /4 /6
Mechanical parameters 
Overall dimension (L x W x H) (mm) 400 x 250 x 250 
Weight (kg)   ≤22
Environmental conditions 
Operating Temperature   -10°C to 50°C
Storage Temperature -40°C to 70°C
Relative humidity ≤95%, on-condensing
Altitude ≤2000m

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