Transformers Magazine, Vol. 9 No. SE1, 2022.
Izvorni znanstveni članak
Silicon carbide varistors
Dr. Tom Galvin
Dominic Coll
Sažetak
Current transformers are used to monitor large currents within power grids and power stations, producing a current in the device’s secondary winding that is proportional to the current flowing in its primary winding. Varistors are used to protect current transformers by preventing an open circuit condition if the secondary is disconnected, which can cause high voltages and arcing. Silicon carbide varistors are a superior solution for protecting current transformers due to their ability to limit voltages even in sustained high ambient temperature conditions. IEEE-compliant
silicone carbide varistors form the basis of robust and reliable current transformer protection units capable of operating for decades in situ.
Ključne riječi
Varistor, silicon carbide varistor, current transformer, current transformer protection unit 68
Hrčak ID:
277836
URI
Datum izdavanja:
9.5.2022.
Posjeta: 363 *