Describe The Features of HV Switchgear Flashcards
1
Q
HV switches are rated for which three primary electrical quantities?
A
- Voltage
- Current
- Frequency
2
Q
What type of switch might be operated using a hotstick?
A
Isolating switch
3
Q
Where is a horn-gap switch normally located?
A
Pole top
4
Q
What level of HV system normally uses load-break switches?
A
Medium-voltage
5
Q
What feature in a disconnect switch provides information about its open status?
A
Provides visible separation between contacts
6
Q
What advantage does a load-break switch have over a circuit breaker?
A
Lower cost
7
Q
What is one difference between a metal-clad switch and a metal-enclosed switch?
A
A metal-clad switch has the draw out feature
8
Q
From what material is a hotstick normally made?
A
Fibreglass
