Under Over Voltage Protection Relay

Increase in the amount of loading loss of an incoming transformer etc.

Under over voltage protection relay. Apart from its well established product range selec is also rapidly growing in the area of digital panel meters plcs. Under and over voltage protection circuit using timers. Which cut off currents with power relay. As long as the monitored voltage remains below the maximum voltage the equipment can withstand the relay remains de energized and remains closed keeping the load energized.

Under voltage wave form. The following protection functions are used in this relay. I e the output from the generator s lavt potential transformer will be given to the under voltage coil typically 110 volts relay coil. Is an indian manufacturer of electrical measurement electrical protection time relays process control and automation components.

Under voltage protection 27 over voltage protection 59 voltage transformer supervision 60vts 1. We use electronics circuits high accurate work is fast lm393 an6780 and more. Reason under voltage protection. I ve presented this way it is over under voltage protection circuit.

The components required for the block diagram of the comparator circuit is the power supply step down transformer bridge rectifier two preset pins comparators voltage regulator relay buzzer and ac current this circuit is planned to expand a low voltage and high voltage tripping mechanism to protect the load from the damage. Under voltages occur due to several reasons like any faults on the system. Over and under voltage protection of electrical appliances this is an over and under voltage protection to all electrical appliances are safe. Since its foundation in 2000 selec has become the market leader for timers counters and temperature controllers in india.

Similarly for under voltage protection lower comparator energizes the relay when the supply voltage falls below 180 v by maintaining 6v at the inverting terminal. Our under over voltage relay have indications the green indicator. Geya under over voltage relay provides protection to equipment that cannot handle excess voltages. Over voltage and under voltage circuit using comparator.

The trainer need a few set of associated relay testing current voltage injection etc panels 7 8 nos. These under and overvoltage settings can be changed by varying the respective potentiometers.