GF303 portable 3 phase ac voltage and current standard Electrical
Power Calibrator with 63th harmonics output
GF303 portable 3 phase ac voltage and current standard Electrical
Power Calibrator with 63th harmonics output 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.
Power calibrators and power quality calibrators GF333V2 -
Three-phase Fully Automatic Test System with Reference Standard and
Integrated Current and Voltage Source The Calmet GF303P portable
test system consists of a three-phase reference meter of accuracy
class 0.04% (or 0.1%) and an integrated three-phase current and
voltage source up to 3x120A/600V
Split-phase power systems achieve their high conductor efficiency
and low safety risk by splitting up the total voltage into lesser
parts and powering multiple loads at those lesser voltages while
drawing currents at levels typical of a full-voltage system. This
technique, by the way, works just as well for DC power systems as
it does for single-phase AC systems. Such systems are usually
referred to as three-wire systems rather than split-phase because
“phase” is a concept restricted to AC.
GF303 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 45 Hz to 65Hz with resolution as good as 0.001
Hz.
As power grids get bigger and carry more power, the need for quick,
reliable disconnection when faults occur becomes more urgent. The
purpose of protective relay equipment is to sense fault states and
trip circuit breakers. If a fault isn’t corrected early, personal
injuries and damage can occur. Megger’s next generation of
programmable secondary relay test systems are designed specifically
to test microprocessor, solid state and electromechanical relays.
New generation single phase and three phase test systems with
remote control facilities and analytics software can make life much
easier for protection test engineers.
FEATURES
- To set up and take the load regulation of voltage, current, phase
angle, frequency and power factor, also can be used as AC current
source, AC voltage source or power source.
- To set 2-128 times of the amplitude and phase harmonics, and it can
be added to the base wave in every harmonic output.
- Frequency value is adjustable (AB and phase C).
- 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 + FPGA, powerful flexible.
- To use hardware PID, fast response, the change of load will not
cause output volatility.
- Industrial frequency waves as high as 50000 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.
- To have big screen, 320 x 240 LCD display, Chinese or 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 85V-265V, 50/60 Hz |
| AC Voltage output |
|---|
| Range (U1, U2, U3 phase) | 57.7V/100V/220V/380V, switch automatically (max 420V) |
| Adjustment resolution | 0.01%, 0.1%, 1%, 10%, |
| Accuracy | 0.05% RG |
| Stability | 0.005% RG/1min |
| Distortion degree | better than 0.1% (not capacitive load) |
| Load Capacity | 25VA |
| Full load regulation rate | Less than 0.01% RG |
| Full load regulation time | Less than 1mS |
| Temperature drift | 8 PPM / °C |
| Long-term stability | 60 PPM/year |
| AC Current output |
|---|
| Range (I1, I2, I3 phase) | 0.1/0.25A/0.5A/1A/5A/10A/20A, switch automatically |
| Adjustment resolution | 0.01%, 0.1%, 1%, 10%, |
| Accuracy | 0.05% RG |
| Stability | 0.005% RG/1min |
| Distortion degree | better than 0.1% (not capacitive load) |
| Load capacity | 25VA |
| Full load regulation rate | Less than 0.01% RG |
| Full load regulation time | Less than 1mS |
| Temperature drift | 8 PPM/°C |
| Long-term stability | 60 PPM/year |
| Power output |
|---|
| Active power accuracy | 0.05% |
| Reactive power accuracy | 0.1% |
| Stability | 0.005% RG/1min |
| Phase |
|---|
| Range | 0°-359.99° |
| Adjustment resolution | 0.01°, 0.1°, 1°, 10° |
| Accuracy | 0.03° |
| Power factor |
|---|
| Adjusting range | -1 to 0 to +1 |
| Resolution | 0.0001 |
| Accuracy | 0.0005 |
| Frequency |
|---|
| Range | 40-65Hz or 40-400Hz (option) |
| Adjustment resolution | 0.001Hz, 0.01Hz, 0.1Hz, 1Hz |
| Accuracy | 0.002Hz |
| Temperature drift | 0.5PPM/°C |
| Long-term stability | 4 PPM/year |
| Harmonic |
|---|
| Harmonic times | 2-128 |
| Adjustment resolution | 0.1% (compared with fundamental wave) |
| Harmonic content (compared with fundamental wave) |
|---|
| Voltage | ≤40% |
| Current | ≤40% |
| Phase | 0°-360° |
| Capacitive load capacity |
|---|
| 0 - 280 V | 1uF |
| 280 - 420 V | 0.6uF |
| Mechanical parameters |
|---|
| Dimensions (W×D×H) (mm) | 450x380x160 |
| Weight (kg) | 18 |
| Environmental conditions |
|---|
| Working temperature | 0°C to 40°C |
| Storage conditions | -30°C to 60°C |
| Relative humidity | ≤85% |
SELECTION GUIDE
| No. | Accuracy | Voltage range | Current range | Weight | Remark |
|---|
| 3030601 | 0.10% | 0-264V | 0-6A | 12KG |
| 3030605 | 0.05% | 0-264V | 0-6A | 12KG |
| 3031201 | 0.10% | 0-420V | 0-12A | 13.5KG |
| 3031205 | 0.05% | 0-420V | 0-12A | 13.5KG |
| 3032001 | 0.10% | 0-420V | 0-20A | 18KG |
| 3032005 | 0.05% | 0-420V | 0-20A | 18KG |
| 303H0601 | 0.10% | 0-300V | 0-6A | 15KG | XP system |
| 303H0605 | 0.05% | 0-300V | 0-6A | 15KG | XP system |
| 303H1201 | 0.10% | 0-420V | 0-12A | 18KG | XP system |
| 303H1205 | 0.05% | 0-420V | 0-12A | 18KG | XP system |
| 303H2001 | 0.10% | 0-420V | 0-20A | 20KG | XP system |
| 303H2005 | 0.05% | 0-420V | 0-20A | 20KG | XP system |
