• Signals and Systems (I) Private Limited

Distribution transformer controller-cum-Data logger

This system was developed by Sands for electricity utilities. This is developed around a micro-controller and DSP (digital signal processor). They monitors energy, frequency, voltage and current in 3 phase and tripps single or more phases in the event of any over load, over voltage or any other malfunction. It also gives out power factor, phase angle, power and energy consumed per phase (active, reactive and apparent) .In can also be programmed to give out records of any tampering, wilful or otherwise. It can store data for a period of forty five to 90 days for downloading and further processing.