In motors or other loads due to various reasons voltage and current can go above or below optimum values. This situation may cause damage to motor or load. To prevent this, Flex Engineering has introduced a 3-phase voltmeter and protector. The unit senses phase sequences and indicates. Single phasing prevention also is in action. Required under voltage or over voltage protection values can be set. Beyond these values the unit cuts off supply giving indication of the cause. Checking to find out which phase has trouble is possible. Individual phase voltages can be read (R, Y ,B). R-Y, Y-B, B-R, can also be read by selection. In auto mode in every five seconds the above mentioned voltages keep changing, showing the next. Single phase and three phase protectors give extreme safety to the equipment and reduces after sales service cost.
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