Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd.
Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd. an exclusive current transformer, split core current transformer, current clamp & voltage transformer manufacturer.
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GF311 Handheld Multifunction Protection Relay Test, phase angle meter for measuring 0° to 360°
The GF311 is specifically designed for measurements on electrical power systems. It is capable of displaying the phase angle relationship between three power signals, which can be three currents, three voltages or any combination. Currents up to 10 A and voltages up to 500 V can be applied directly to the instrument. The current input range can be extended by new clamp on cts.
GF311 Phase-Angle Meter an instrument used to measure the cosine of the phase-shift angle, or the power factor, between voltage and current in electric AC circuits at frequencies specified for mains used by industry or to measure the phase difference of electric oscillations.
GF311 multifunction phase angle meter 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. it can be suitable for checking polyphase metering installations, testing protective relays, make comparative test in electrical substations, and verifying the phase angle deviation on power transformers.
Phase Angle Meter Applications
Calibration laboratories
Phase meter
Single phase angle indicators V-A
Three phase angle indicators V-A
Three phase angle indicators A-A
Cos Phi indicators
Power factor meters
Watt meters
Multifunction watt transducers
Phase protection relays
Power meters
Energy meters
Current transformer calibration
Current probe phase delay
Transformer phasing
Synchro
Resolver Angle indicators
| Electrical parameters | |
|---|---|
| Accuracy class | 0.1% |
| 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 | 0.1% |
| Current measurement | |
| I1, I2, I3 Range | 1mA-10A or 50mA-200A or 50mA-500A |
| Resolution | 0.5mA |
| Accuracy | 0.2% |
| Active power measurement | |
| Active accuracy | 0.2% |
| 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 |
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