The primary defense to protect electrical equipment from over-voltages is surge arresters. These necessary devices hold metal oxide varistors (MOVs) and are rapid response protectors against voltage ...

SURGE ARRESTERS ARE OFTEN OVERLOOKED WHEN PERFORMING POWER FACTOR TESTS on transformers, breakers and other apparatus in a substation. Oftentimes, the testers are aware of how a transformer or a ...

Thomas & Betts’ metal-oxide surge arrestors include the following features: IEEE 386 interfaces provide convenient energized connection with other 200A loadbreak or deadbreak components EPDM molded ...

Provide transient overvoltage protection for outdoor and commercial LED lighting Two models Constructed with thermally protected metal oxide varistors The LSP Series of surge protection device (SPD) ...

In just milliseconds, a voltage surge can destroy valuable equipment or even bring an entire facility down; thus, protection against transient voltage spikes is important. Hard-wired transient ...

What is a metal oxide varistor? The Metal Oxide Varistor or MOV is a voltage dependent, nonlinear device that provides excellent transient voltage suppression. The Metal Oxide Varistor is designed to ...

If you have paid close attention to power lines, you might have noticed metal spring-like structures close to the transmission towers. These spring-like structures are known as lightning arresters, ...