29 May 2014
In 2014 RUSAL Krasnoyarsk Aluminium Smelter will install 4 flexible electronic fibre optic current transformers (FEFOCT) for measuring the current in the potlines, transmitting and storing the data. RUSAL Krasnoyarsk is the second largest aluminium smelter in the world. Profotech has already supplied this equipment to this company before. On May 1, 2012 Profotech’s flexible fibre optic current transformers were introduced as the main direct current gauges in potlines.
Flexible electronic fibre optic current transformers ensure that the sensor gauging the amount of current flowing through it operates reliable in extremely dusty conditions with air containing carbon particles, to measure current pulsations of up to 15% at a frequency of 60 HZ. The power supply of the device can withstand voltage fluctuations and short circuits and can also operate in strong electromagnetic fields.
FEFOCT do not have to be calibrated after being installed and put into operation.
The design allows the sensor to be installed and removed from the current bus without having to dismantle the bus, as many times as possible. FEFOCT can operate in a broad range of temperatures: from – 30 C to + 40 C for the measuring module and from -40 C to + 40 C for the sensor.
Profotech technicians will install and launch the units on site.