PREZIOHM TFR 73HF
An innovative product of TAURUS
PREZIOHM TFR 73HF is an innovative product of TAURUS designed to measure impedance along with resistance, impedance and Inductance of transmission line tower footing without disconnecting the overhead earth wire. Automatic compensation of Soil resistivity is provided.
The tower Earthing has important role in
- Reducing the number of faults in power system.
- Dealing with effects of proximity between power system and railway or telecommunication systems
- Ensuring the safety of people near tower.
- Minimize the losses due to lightning
Now Available on GEM Portal
Validations
The guide IEEE 81-1983 in their numeral 12.6 suggests that the transmission lines tower footing measurement should be implemented with a high frequency ground resistance meter, which operates at 25 KHz.
Features
- Measures impedance along with inductance & resistance of the transmission line tower footing without isolating the overhead earth wire.
- Automatic suppression of all noise and leakage currents.
- Metallic shielding to suppress EMI interference and EMC compliance.
- Time tested to withstand long hours of testing
- Simple user interface and instant tests to save time
- Designed to operate in a highly induced environment and to give highly stable, reliable, repeatable readings with its strong capability of noise & leakage current/voltage suppression.
- High capacity battery for long and continuous operation.
Technical Specifications
- Principle of operation : Fall of potential (3-point method) with high frequency and soil resistivity compensation
- Application : Soil resistivity and tower footing ground resistance measurement.
- Range : 0.01Ω to 2 k-Ω
- Voltage output : 250V
- Frequency : 25 kHz as per IEEE 81-1983
- Short circuit current : 20mA
- Measurement Accuracy : +/- 2%
- LED display with high resolution
- Li-Ion rechargeable maintenance free battery for long and continuous operation.
- IP 67 pelican casing
- Operating and storage temperature: -10º to + 50ºC
- Memory: automatic storing of 2000 results
- Download to PC with GPS
- GAMA Software for real time data capturing and GPS location
