GF3031 500V 120A Portable Three Phase Electrical Power Calibrator

Three Phase Electrical Power Calibrator

The GF3031programmable electrical power calibrator is a powerful and high precision 0.05% portable three phase current and voltage source. All test values are generated absolutely synthetically with a high degree of accuracy and stability. The source is available in 6A, 12A, 20A or 120A version. Voltage and current phase shift can be adjusted from 0.000°to 360.000°, stability 0.01%/min.
The GF3031 three phase portable power calibrator is a lightweight and portable current and voltage source based on newest technology and serves for solving this problem by simulating the required load conditions. Operation is performed by integrated 7" touch screen or via keyboards. It is a high precision test equipment as AMI R & D or energy meter manufacturer factory. This model three phase power calibrator can test energy meter, power meter, ammeter, voltmeter, phase angle meter, power factor meter & frequency meter etc.



  • Weight light 15Kg;
  • With USB or RS232;
  • 7 inch TFT touch LCD;
  • Portable design IP54;
  • Distortion of waveform display;
  • Accuracy class 0.05, 0.1 or 0.2;
  • Programmable controlled by RS232 port;
  • U & I setting 2nd-63rd harmonics output;
  • 3P4W, 3P3W, 1P3W, 1P2W wiring mode setting;
  • Three phase voltage generation up to 500 V;
  • Phase shift 0.000°-359.999°, accuracy 0.02°;
  • All test values are generated synthetically;
  • One screen displays all electrical parameters;
  • Overload, short circuit, open circuit protection;
  • Three phase current generation up to 120 A (AC) ;


  • Individual load point settings;
  • User friendly menu guided operation;
  • Programmable frequency 40.000-70.000Hz;
  • Color display with graphical interface;
  • Operation without need of an external PC;
  • Programmable phase shift control from 0-360.000°;
  • Programmable power factors from -1.00000 to 1.00000;
  • Configuration of balanced and unbalanced load points;
  • Indication of load values, vector diagram and waveform;
  • Programmable wave form generation for voltage and current;
  • All the load testing point output continuously for any time;
  • Generation of up to the 63rd harmonic in voltage and current;
  • Current, voltage and phase shift are adjustable to high accuracy individual per phase;


Electrical parameters 
Accuracy class  0.05%, 0.1%, 0.2%
Power supply Single phase AC 100-265 V, frequency 50/60 Hz
AC Voltage output 
Range (U1, U2, U3 phase) 57.7V, 100V, 220V, 380V(Max 500V); range switch automatically
Adjust fineness 0.01% RG
Accuracy 0.05% RG
Stability <0.01% RG/120s
Distortion degree <0.3% (not capacitive load)
Output power 30VA
Full load regulation rate 0.01% RG
Full load regulation time Less than 1mS
Long-term stability ± 60 PPM/year
AC Current output 
Range (I1, I2, I3 phase) 0.2A, 1A, 5A, 20A, 100A(Max 120A); range switch automatically
Adjustment range (0-120)%RG
Adjustment fineness 0.01%RG
Accuracy 0.05% RG
Stability <0.01% RG/120s
Distortion degree <0.3% (not capacitive load)
Output power 20VA, 50VA, 100VA, 200VA
Full load regulation rate 0.01% RG
Full load regulation time Less than 1mS
Long-term stability ± 60 PPM/year
Power output 
Accuracy 0.05% RG
Stability 0.01% RG/120s
Phase angle
Adjusting range 0°-359.99°
Output adjustment fineness 10°, 1°, 0.1°, 0.01° as optional.
Resolution 0.001°
Accuracy 0.02° or 0.05°
Power factor
Adjusting range -1.00000 ~ 0 ~ +1.00000
Resolution 0.0001
Accuracy 0.0005
Adjustment range 40.000-70.000 Hz
Output adjustment fineness 5Hz, 1Hz, 0.1Hz, 0.01Hz as optional.
Resolution 0.001Hz
Accuracy 0.002 Hz
Temperature drift ± 0.5 PPM/°C
Long-term stability ± 4 PPM/year
Voltage/Current/Harmonic Setting
Harmonic number 2-63times
Harmonic content 0-40%
Harmonic phase 0-359.99
Harmonic setting accuracy (10%±0.1%)RD(2)
Communication Port RS232, USB2.0
Programmable controlled Yes
Harmonic Yes
Wiring mode 3P4W, 3P3W, 1P3W, 1P2W
Key 30pcs
LCD 7 inch TFT color touch display
PC control software Optional
Standard IEC 62053-21,22, 23; IEC 60736; ANSI C12.20-2002;
JJG 597-2005; JJG596-2012; JJG 1085-2013; JJF 68-2019;
DL/T 826-2002; DL/T 1478-2015; DL/T 448-2016; JJG 51-1999;
DL/T 2213.1-2021; GJB J 5857-2006; JJG6-2011; JJG70-2015;
Isolation protection IEC 61010-1:2001
Measurement Category 300 V CAT III, 600 V CAT II
Degree of protection IP20
Declaration of conformity CE & CNAS certified
Mechanical parameters
Dimensions (W×D×H) (mm) 495x390x195
Weight (kg) 8, 12, 15, 20, 22
Environmental conditions
Working temperature 0°C to 50°C
Storage condition -30°C to -60°C
Relative humidity ≤ 85%

Selection guide

No. Accuracy Voltage range Current range Weight
303162 0.2% 0-300V 0-6A 8KG
303161 0.1% 0-500V 0-6A 8KG
3031605 0.05% 0-500V 0-6A 8KG
3031122 0.2% 0-300V 0-12A 12KG
3031121 0.1% 0-500V 0-12A 12KG
30311205 0.05% 0-500V 0-12A 12KG
3031202 0.2% 0-380V 0-20A 15KG
3031201 0.1% 0-500V 0-20A 15KG
30312005 0.05% 0-500V 0-20A 15KG
3031502 0.2% 0-380V 0-50A 20KG
3031501 0.1% 0-500V 0-50A 20KG
30315005 0.05% 0-500V 0-50A 20KG
30311202 0.2% 0-380V 0-120A 22KG
30311201 0.1% 0-500V 0-120A 22KG
303112005 0.05% 0-500V 0-120A 22KG

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