GF303D portable 3 phase ac Electrical Power Calibrator is suitable for power department, measuring department, quality control department, research units, and institutions of higher learning, and electric energy meter, power distribution terminals, power supply management, load control, power quality, reactive power compensation device and the production of enterprise etc.

GF303D is electric AC/DC power and energy calibrator for calibration of power meters, power transducers, power quality analysers and generally all kinds of power measuring devices. AC voltage, current, power and energy functions have calibrated phase shift in frequency range from 40 Hz to 70Hz with resolution as good as 0.001 Hz.

The GF303 AC Power Calibrator is equipped with RS232 PORT as standard communication interface to control external devices remotely. Power Factor Validation Power factor is an important element when users judge the efficiency of a device.

In the Power Calibration mode, the GF303D can be used as a source to calibrate DC and single-phase AC watt meters, power analyzers, and energy meters. In this mode, the output voltage can be set up to 500V, the output current up to 120A, and the power factor from -1.0 to +1.0 lead/lag in the frequency band from 40Hz to 70Hz.

FEATURES

To set up and take the load regulation of voltage, current, phase angle ,frequency and power factor etc; as a large current source, voltage source and power source
To set 2 ~ 51 times of the amplitude and phase harmonics, and it can be added to the base wave in every harmonic output
Voltage, current output a wide range, big power, high stability, waveform distortion degree is small
Strong with load ability, but it can take capacitive, sensibility, resistance of composite type load or load and load regulation is higher than 0.01%
To apply the 32 bit MPU + DSP + CPLD, powerful flexible
To use hardware PID, fast response, the change of load will not cause output volatility
Industrial frequency waves as high as 5000 points a week of the wave kneading, signal output without filter, precise output waveform, the harmonic output precision, harmonic distortion degree is small
Range switching automatically
To use software calibration, simple operation, stable and reliable
Display of vector diagram, adjustable to IEC387 OR DIN410
Big touch screen, 7-inch TFT color LCD display, English interface, operating simply
To have perfect over-current, over-voltage, heat, a shorts-and-opens, overload protection, failure detection automatically
With RS232 interface, and PC connection
To take place machine software, it can be output through the PC software program

PARAMETERS

Electrical parameters
Accuracy class	0.02%, 0.05%, 0.1%
Power supply	Single phase AC 85-265 V, frequency 50/60 Hz
AC Voltage output
Range (U1, U2, U3 phase)	57.7V/100V/220V/380V; range switch automatically(Max 600V)
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; range switch automatically
Adjustment range	(0-120)%RG
Adjust fineness	0.01% RG
Accuracy	0.05% RG
Stability	<0.01% RG/120s
Distortion degree	<0.3% (not capacitive load)
Output power	100VA
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°
Resolution	0.001°
Accuracy	0.02°
Power factor
Adjusting range	-1 ~ 0 ~ +1
Resolution	0.0001
Accuracy	0.0005
Frequency
Adjusting range	40-70 Hz
Resolution	0.001 Hz
Accuracy	0.002 Hz
Temperature drift	± 0.5 PPM/°C
Long-term stability	± 4 PPM/year
Harmonic accuracy
Harmonic phase	0°-359.99°
Harmonic phase accuracy	< 0.01°
Harmonic set accuracy	0.1% (relative to the base wave ratings)
Mechanical parameters
Dimensions (W×D×H) (mm)	500x600x175
Weight (kg)	25
Environmental conditions
Working temperature	0°C to 40°C
Storage condition	-30°C to -60°C
Relative humidity	≤ 85%

SELECTION GUIDE

NO.	Accuracy	Voltage range	Current Range	Weight
303D1201	0.10%	0-500V	0-120A	25KG
303D12005	0.05%	0-500V	0-120A	25KG
303D1201	0.10%	0-380V	0-12A	18KG
303D1205	0.05%	0-380V	0-12A	18KG
303D2401	0.10%	0-500V	0-24A	20KG
303D2405	0.05%	0-500V	0-24A	20KG

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