details for spike arrestor ( for home use)?

Question

can anybody provide me details of spike arrestor ( high voltage)
please provide details like circuit dig as i have to implement it in real as my project

guuuuys plz i need more help

Answer 1

The most common surge arresters used are MOV arresters. Metal Oxide Varistors can be thought of as a high-speed switch that begins conducting when the voltage exceeds a certain level. When the voltage drops below that value, the MOV opens up again.

You purchase an MOV based on the desired voltage threshold, and the amount of energy it can handle. (measured in joules) In general, the larger the diameter of the MOV arrester, the more energy it can handle.

Another rating of the arrester is the MCOV - Maximum Continuous Operating Voltage. This is the highest voltage it can handle under steady-state conditions. If you buy an arrester with too low an MCOV, it may begin to operate when the supply voltage is near its upper limit. Since the arresters are designed for very brief spikes, the continuous operation of the MOV (at a voltage above the MCOV) will cause it to fail.

Arresters are connected between the phase conductors (hot leg) and the neutral/ground conductors in your electrical service.

You can install a large arrester at the service entrance panel, and another one at the equipment you're looking to protect.