Rtcc Avr Relay

The Microcontroller based automatic voltage regulating relay type RTCC AVR Relay is used for regulating The secondary voltage of power transformer with on load taps changer. The required dead band, Setting are set by low voltage and high voltage parameter. The delay parameter use for momentary fluctuations of the regulated voltage. Thus reducing the number of operations of the Tap changer.
When the regulated voltage falls below the under voltage limit, the control relay are automatically blocked i.e.. There is no voltage correction and under voltage relay is open contact position and display message a under". The two digit display provided for tap position Indication. When the regulated voltage high than over voltage parameter value that time system by pass delay parameter & quickly change tap up to normal condition.
*a 2a digit display : for tap position.
* 4a digit display : for pt voltage.
* control relay : two really @ 220v/5A contact provided
* 5a digit tap position change counter provided.
* under voltage message display.
* Over voltage message display
* Auto/ manual mode selectable
* one under voltage relay : normally NC, contact5A@220 voltage