GF303D 100A portable three phase AC programmable current source
The Model GF303D is a programmable current source that provides an output current that stays constant with changes in load impedance. The output voltage will vary as necessary to maintain the desired value of constant current through the load. Output current of the Model GF303D can be set by means of an external potentiometer or by a ac voltage.
Programmable current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it. A current source is the dual of a voltage source. The term current sink is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source driving a resistive load. There are two types. An independent current source delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.
The GF303D is a powerful and portable three phase programmable current and voltage source. All test values are generated absolutely synthetically with a high degree of accuracy and stability. The source is available in 12 A, 24A or 120 A.
The GF303D three phase portable programmable power source 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.
- Accuracy class 0.05%
- Power supply AC 85-265 V,50/60 Hz
- 0-120A, 0-500V accuracy 0.05%
- Phase angle 0°-359.99° accuracy 0.05°
- Frequency range 40-70 Hz
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 ~ 31 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 |
0.05%, 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 500V) |
| Adjust fineness |
0.01% RG |
| Accuracy |
0.05% RG |
| Stability |
<0.01% RG/120s |
| Distortion degree |
<0.3% (not capacitive load) |
| Output power |
25VA |
| 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 |
45VA |
| 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 |
0.05° |
| Power factor |
| Adjusting range |
-1 ~ 0 ~ +1 |
| Resolution |
0.0001 |
| Accuracy |
0.0005 |
| Frequency |
| Adjusting range |
40-65 Hz |
| Resolution |
0.001 Hz |
| Accuracy |
0.005 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 |
Photo
https://guangfuhui.en.made-in-china.com
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