SPD – Working, Construction and Which voltage to select (280V or 320V)?
Contributed by: Suraj Kumar HS 280V Vs 320V AC SPD Introduction Surge Protection Devices (SPDs) are devices that are used to protect electrical equipment against transient over voltage (TOV). TOVs often come from one of three places: the grid side (like in a load-shedding situation or switching at the local substation), or the load [...]
