Question

Calculate the primary voltage and current of a step-down

transformer having 2500 primary turns, 500 secondary turns,

secondary voltage is 40v and secondary current is 5A?​

Answer 1

Answer:

Just see.

Explanation:

The formula of transformers is

Vp/Vs = Np/Ns = Is/Ip

or, Vp/40 = 2500/500 = 5/Ip

or, Vp = 200 v & Ip = 1 A

So, the primary voltage is 200 v & the primary current is 1 A  of a step-down.

Step Down Transformer

A step-down transformer is a type of transformer that converts the high voltage (HV) and low current from the primary side of the transformer to the low voltage (LV) and high current value on the secondary side of the transformer. The reverse of this is known as a step up transformer.

Answer 2

Answer:

So, the primary voltage is 200 v & the primary current is 1 A  of a step-down.

Explanation:

Transformer winding calculations are simply an exercise in mathematical ratios. If your students are not strong in their ratio skills, this question provides an application to sharpen them!

The formula of transformers is

Vp/Vs = Np/Ns = Is/Ip

or, Vp/40 = 2500/500 = 5/Ip

or, Vp = 200 v & Ip = 1 A

For similar questions refer-https://brainly.in/question/15146776

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