Novatek Electro India Pvt. Ltd.

Delhi, Russian Federation

We are offering programmable multifunctional voltage monitoring relay. the relay is a multifunctional programmable controller providing protection in ac 240/415 or 220/380 volt, 50hz circuits. The relay repeats all rnpp-301 functions including the magnetic starter/contactor full phase terminals monitoring. In eachoperation mode the user selects the set of parameters to be monitored on the front panel. Besides, the relay is equipped with a digital input that locks the relay in case of a fault. An additional feature: three-phase digital voltmeter that displays actual phase/line voltage rms value. rnpp-302 protects the power load from the following alarm situations and power faults:- over and under voltage, voltage surges and fluctuations, - phase loss, - phase coincidence, - wrong phase sequence, - phase imbalance in the ac power circuits- control over the full phase switching of the contactor- remote control input signal to operate with the power load as per requirement the rnpp-302 operates with the magnetic coil of the external contactor which in its turn operates with the power load. It constantly checks (before and after turning on) the condition of the power contacts of magnetic contactor and detects the stuck together and burned contacts. When the power parameters return back to normal after the interruption or when the reason of the tripping is eliminated the rnpp-302 performs automatic reclosing and thus restart the equipment. It does so following a time delay (0-600 sec), set previously by the user.