What does the above symbol indicate in an electrical drawing?

What does the above symbol indicate in an electrical drawing?
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What does the above symbol indicate in an electrical drawing?

A. Lightning arrestor

B. Isolator 

C. Exhaust fan

D. Current transformer

Please scroll down to see the correct answer and solution guide.

Right Answer is: A

SOLUTION

Circuit Elements

Symbols

Earthing

Circuit Breaker

Current Transformer

Bus Bar

Potential Transformer

Lightning Arrestor

Fuse

Transformer

Isolator

 

Tandem Isolator

Auto Transformer