GF1061PT Portable Voltage transformer tester

voltage transformer Tester

GF1061PT voltage transformer tester is the first portable test equipment (4.8 kg) which offers highly accurate voltage transformer tests. This allows to use GF1061PT not only for electrical performance checks, but also for class verification and calibration. It performs quick tests of all kinds of inductive voltage transformers (VTs or PTs) and capacitive voltage transformers (CVTs) for both protection and metering purposes. Its lightweight design makes it ideal for on-site tests and calibration tasks in power system grids. As a manufacturer or testing lab you can use GF1061PT in your production facilities and test/development labs.



GF106PT voltage transformer test equipment can finish the measurements (M) and protection (P) class PT. Adopt 7 inch touch TFT color LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to download data. The GF1061PT portable PT test equipment is the most complete and easy-to-use testing system for PTs according to IEEEC57.13 and IEC60044 & IEC61869 standards.


  • Multi secondary winding test optional;
  • Produce a word or PDF file test report;
  • With battery optional, working one week;
  • Parameters such as knee point current and voltage;
  • Parameters such as 10% error curve, 5% error curve;
  • PT test, easy to test, all the tests result quickly;
  • Portability: weight 4.8kg, the best light pt analyzer;
  • Tests such as ratio, phase, polarity, capacitive ratio;
  • With thermal printer, printing test results in the field;
  • The data can be displayed and analyzed after transferred to PC;
  • Tests of various types of measurement and protection VTs and CVTs;
  • Using of advanced power technology, the test knee point reaches up to 80kV;
  • No external other auxiliary equipment, stand-alone to complete all test items;
  • Storage 10000 groups of test data which would not be lost if the device is power off;


  • Power plant;
  • Oil, Gas company;
  • Electrical laboratory;
  • Railway electric company;
  • Metrological service center;
  • Voltage transformer factory;
  • Power engineering commissioning company;
  • Electricity power bureau & power company;
  • National Metrology and testing department;
  • Electrical Department of industrial and mining enterprises;

Main functions

II. Voltage Transformer (PT)
1. Excitation characteristic test
2.  Transformation ratio test
3.  Polarity
4.  Ratio error, phase error
5.  Degauss
6.  Calculation of knee point value
7. burden test
8. Resistance test


Electrical parameters
Accuracy 0.02% or 0.05%
Power supply AC 220V±10% or AC 120V±10%, 50/60Hz or Battery
Output voltage 0-100Vrms
Output current 0-5Arms (20A peak-value)
Output power 0-400 VA (1500 VApeak)
Automatic frequency variation range 0.1-60Hz
Equivalent excitation voltage ≤5000V/80KV
Accuracy ≤0.02% or 0.05%
PT voltage level ≤800KV
Secondary winding DC resistance measurement Range 0.1-1000Ω
Accuracy ≤0.05%
Secondary actual load measurement Range 0.1VA-1000VA
Accuracy ≤0.02%±0.1VA
PT phase error measurement Accuracy ±1min (typical) / 3 min (guaranteed)
Resolution 0.1min
PT ratio error measurement Range 1-30000
Accuracy ≤0.05%
LCD display 7' inch TFT touch color LCD
Cable Length Primary 5m; Secondary 5m; others customized
Communication port USB, RS232, WIFI
PC control software Yes, Optional
Printer Yes, Thermal printer
Reference standards GB1207-2006, GB1208-2006, GB16847-1997, GB/T 20840.3/4/5, IEC60044-6, IEC61869-1,3, 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) 280 x 250 x 160  
Weight (kg)   ≤4.8
Environmental conditions
Relative humidity Relative humidity 5%-95% not condensing
Operating temperature -10°C to +50°C
Storage temperature -20°C to +70°C
Altitude ≤2000m; If the altitude is greater than 2500m, the instrument needs to be customized

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