Which current does a transformer work with?
Alternating current
What type of current is required in a transformer and why?
A transformer needs an alternating current that will create a changing magnetic field. A changing magnetic field also induces a changing voltage in a coil. This is the basis of how a transformer works: The primary coil is connected to an AC supply.
How do you find the current in a transformer?
If for some reason you need a larger transformer to operate appliances, you still divide the wattage by the voltage to find the current. For a 120-volt primary, 2000-watt transformer, divide 2000 by 120 for the current (2000 Watts /120 volts =16.67 amps). For a 240-volt, 3000-watt transformer, the current is 12.5 amps.
How does current flow in a transformer?
a transformer (two windings) is a kind of transducer in which current flowing through the primary winding creates a magnetic flux that passing through secondary winding results in current flowing through the load. Shortly current in primary winding produces current and voltage in the secondary winding.
What are the three parts of a transformer?
There are three basic parts of a transformer: an iron core which serves as a magnetic conductor, a primary winding or coil of wire and. a secondary winding or coil of wire.
What is the main purpose of transformer?
A transformer is an electrical device designed and manufactured to step voltage up or step down. Electrical transformers operate on the principle of magnetic induction and have no moving parts.
What is the working of transformer?
A transformer is an electrical apparatus designed to convert alternating current from one voltage to another. It can be designed to “step up” or “step down” voltages and works on the magnetic induction principle.
What is the price of transformer?
Questions & Answers on Distribution Transformer
| Power Rating | Min Price | Max Price |
|---|---|---|
| 25 kVA | Rs 60,000 | Rs 75,000 |
| 63 kVA | Rs 1.1 Lakhs | Rs 1.4 Lakhs |
| 100 kVA | Rs 1.45 Lakhs | Rs 1.75 Lakhs |
| 250 kVA | Rs 2.5 Lakhs | Rs 3 Lakhs |
What is a transformer simple definition?
Transformer, device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage. …
What are the advantages of transformer?
Advantages of transformers
- Simple working principle and construction.
- Stepping up / down voltage and current.
- Isolation and efficiency.
- Transmitting and distributing power.
- Cost efficiency.
- Various types and wide usage areas.
- No moving parts and starting time.
- Reverse connected.