High Voltage Cutoff Circuit Diagram

The ac mains high and low voltage cut off circuit explained in this article is very easy to build and yet very reliable and accurate.

High voltage cutoff circuit diagram.

When the input voltage goes high then the relay will be activated and also when the input voltage is below then required level then relay activated. Over voltage and under voltage protection circuit for high and low voltage cutoff. Juliet 8 years ago plzzzzz tell me the size of the auto transformer to be used and i didnt get what is no n where exactly the appliance to be checked should be kept kind request to you to send me all the details of working. Parts list for the proposed high low mains voltage protector circuit.

R1 r2 r3 r4 r5 r6 r7 r8 4k7. Before using this circuit set the preset and check the relay or output to at which input voltage level relay gets activated. This voltage sensor circuit can be used to protects any appliance to voltage fluctuation. When supply voltage is high the dc voltage at the cathode of zener diode d4 becomes greater than 5 6v.

High and low voltage cutoff with delay and alarm principle. The following circuit utilizes a transformer for powering the circuit. Plzz tell me the high low voltage cutoff with delay and alarm with some modification and advancement in circuit diagram. So it helps to protect the circuit damage by the high voltage.