Overhead Protection Transformer Type, High Frequency Transformer, Battery Storage Types

1. For overhead protection we use which transformer?
a) current transformer
b) Power Transformer
c) Power transformer
d) Voltage transformer

2. For high frequency application we use which transformer?

3. Batteries used for electrical energy storage are
a. Laclanche cells
b. Edison cells
c. Lead acid cells
d.any of the above

4-.If we have two nodes A and B and Vab is the potential difference between these nodes then which node is called reference node
a.node A
b.node B
c. Ground node

For a SUPPLY - that is power (energy - electricity) coming to your property - you need a transformer called a POWER TRANSFORMER. It will deliver voltage and current.

It is also called a general-purpose transformer or POLE TRANSFORMER or DISTRIBUTION TRANSFORMER

For high frequency you usually specify an AIR CORE TRANSFORMER or FERRITE CORE TRANSFORMER.

All the above batteries will store electrical energy

You are specifying that the black lead of a piece of test gear is connected to "a" and the red lead is connected to "b"

thnx alot peter white