What are the disadvantage of step-down transformer?

 Hey guys,

 I know your time is precious, So I am coming straight to the answer.

A step-down transformer is a transformer that consists of less windings on its secondary side while comparing with the primary side.

While talking about the step-down transformer, there are two types of transformer that play an important role.

1. Distribution transformer.
2. Potential transformer.

Distribution transformer - steps down the medium voltage to  low voltage (11 Kv to 240 or 440 V)

Potential transformer - Steps down the medium voltage to measurable voltage (11 kV to 110V)

Disadvantages of Step down transformer.

The topic starts here.............👇

1. A large size step-down transformer requires efficient insulation and cooling system because operating power can generate Such heat.
2. Windings of the step-down transformer are made up of copper or aluminium, which may increase the cost of the transformer.
3. The output voltage of the step-down transformer cannot be transmitted for long-distance due to the occurrence voltage drop.
4. The step-down transformer requires proper maintenance and should be tested periodically.
5. Secondary windings of the transformer do not have the capacity to limit the short-circuit current due to transmission of voltage in low impedance.
6. For better efficiency, we have to always monitor the Voltage regulation and it should be always kept at less unit.
7. The core of the step-down transformers should be made up of high permeability material to reduce the eddy current.  

What are the things you consider as disadvantages of distribution transformer and potential transformer?---------Post a comment.

Thank You...