Three Phase Multifunction Digital Phase Angle Meter High Accuracy
Electronic Testing Equipment
GF311 Portable Electronic Testing Equipment of Three Phase
multifunction digital phase angle Meter with accuracy 0.1°
(Accuracy 0.5%)
Application
It can be applied to electric power dispatching center, relay
protection department or relay protection in power plant. Its
metric division class makes it suitable for petroleum, railways and
the iron and steel industries also.
GF311 multifunction phase angle meter is suited for checking polyphase metering installations, testing
protective relays, make comparative test in electrical substations,
and verifying the phase angle deviation on power transformers
Direct digital reading to tenths of a degree (0.1°) – does not
require calculation or interpretation. Designed for use in
substation or industrial environments – transport case provided for
rugged protection. Phase angle calculated from of any combination
of two power signals to be measured giving broad application
capability. Timer with high accuracy for contact or voltage trig.
Local calibration.
Main Functions and Features
1. Simultaneously measuring three-phase voltages, current, power,
frequency, power factor, phase, etc.
2. Display vector map for the use of user directly.
3. Horizontal liquid crystal big screen TFT displays all electric
parameters;
4. The smallest current it can measure is 1 mA, 2 mA above can
display vector diagram;
5. Small volume, light weight and the operation is simple,
convenient;
6. DSP digital signal processing chip, wide measuring range, high
accuracy, good stability;
7. It can store data; data can be using computer software to upload
for management;
8. Range switches automatically, software for be calibrated.
| Electrical parameters | |
| Accuracy class | 0.5% |
| Power supply | AC 85-265V 50/60Hz or Li-battery 5000mAh |
| Communication Port | RS232 |
| Warming-up time | < 5min |
| Power consumption | ≤5VA |
| Voltage measurement | |
| U1, U2, U3 Range | 0-480V |
| Resolution | 0.001V |
| Accuracy | 0.2% |
| Current measurement | |
| I1, I2, I3 Range | 1mA-10A or 50mA-200A or 50mA-500A |
| Resolution | 0.5mA |
| Accuracy | 0.5% |
| Active power measurement | |
| Active accuracy | 0.5% |
| Reactive power measurement | |
| Accuracy | 1% |
| Phase measurement | |
| Range | 0°-359.9° |
| Resolution | 0.001° |
| Accuracy | 0.1° |
| Frequency measurement | |
| Range | 45-65Hz |
| Resolution | 0. 001Hz |
| Accuracy | 0.01Hz |
| Power factor measurement | |
| Range | -1 to 0 to +1 |
| Resolution | 0.0001 |
| Accuracy | 0.01 |
| Mechanical parameters | |
| Dimensions (W×D×H) (mm) | 245×162×60 |
| Weight (kg) | 1 (mains)
6.5 (appendix and box) |
| Environmental conditions | |
| Working temperature | -10°C to 55°C |
| Working humidity | 15%-85%RHD |
| Storage temperature | -25°C to 70°C |
| Storage humidity | 5%-95%RHD |
