RISH Relay - AR monitors AC current of a system/equipment and protects it from overcurrent, undercurrent and current unbalance. As well as it indicates the occurrence of faults with help of LED indications. It is a potentiometer based relay thus it is easy to programme trip points and time delays
The Temperature trip relay has been designed to monitor three separate temperature zones in large electric motors, transformer winding or any temperature conscious equipment such as process lines gas turbines or engine driven generating sets, using Resistance Temperature Detectors (RTDs).
The protector de-energizes a relay should any one of the above faults occur. It is fitted with an adjustable time delay to eliminate premature operation on short duration supply fluctuations. A red LED indicates that the supply is within limits & that the output relay is energised.
The AC Current provides continuous surveillance of the monitored circuit. When the measured current moves outside the set point limit, the relay will operate. An adjustable time delay is provided to prevent the relay from tripping for a predetermined period to prevent nuisance tripping.