10A Clamp Handheld Protection Relay Test Equipment 45-65Hz Frequency
GF311 10A clamp Handheld Multifunction phase angle meter for Protection Relay Test
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.
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 20 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.
FEATURES
- Simultaneously measuring three-phase voltages, current, power, frequency, power factor, phase, etc.
- Display vector map for the use of user directly.
- Horizontal liquid crystal big screen TFT displays all electric parameters;
- The smallest current it can measure is 1 mA, 2 mA above can display vector diagram;
- Small volume, light weight and the operation is simple, convenient;
- DSP digital signal processing chip, wide measuring range, high accuracy, good stability;
- It can store data; data can be using computer software to upload for management;
- Range switches automatically, software for be calibrated.
PARAMETERS
| 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 |
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