Definition of Switch Gear
Solution:
The device used for switching, controlling and protecting the electrical circuits and equipments.
Example:
1.Fuse
2.Circuit breaker
3.Relay
4.Switches
Surge Impedance and Surge Impedance Loading
Solution: Surge Impedance: Impedance of the transmission line without losses is called Surge Impedance. Zs = √(L/C). Surge Impedance Loading: The power delivered by the line to a purely resistive load equal to it's surge impedance or the load at which inductive and capacitive,reactive volte amphere are equal and opposite this is called surge impedance loading. SIL = VsVr / Zs
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