• Product
  • Suppliers
  • Manufacturers
  • Solutions
  • Free tools
  • Knowledges
  • Experts
  • Communities
Search


What is a Transformer?

Encyclopedia
Field: Encyclopedia
0
China

What is a  Transformer?

Transformer Definition

A transformer is a passive device that transfers electrical energy from one circuit to another using electromagnetic induction.

ec6a5db6-56f2-4723-892d-b2a7abf77f4d.jpg

Transformer Parts And Construction

  • Primary Winding of Transformer

  • Magnetic Core of Transformer

  • Secondary Winding of Transformer

Working Principle

The working principle of a transformer involves mutual induction between coils to transfer electrical energy.

dde2f9f8-649e-49d9-bf05-db94bc4ad6bf.jpg

Core Function

The core of a transformer provides a path with low reluctance, essential for efficient flux linkage between the windings.

Voltage Conversion

Depending on the turns ratio between the primary and secondary windings, a transformer can either step up or step down the voltage.

  • If the primary coil has more turns than the secondary coil, the voltage decreases, known as step down.

  • If the primary coil has fewer turns than the secondary coil, the voltage increases, known as step up.

Inrush Current Impact

The inrush current is the initial surge of electricity experienced when a transformer is switched on, affecting its immediate performance.

Give a tip and encourage the author!

Recommended

Why Must a Transformer Core Be Grounded at Only One Point? Isn't Multi-Point Grounding More Reliable?
Why Does the Transformer Core Need to Be Grounded?During operation, the transformer core, along with the metal structures, parts, and components that fix the core and windings, are all situated in a strong electric field. Under the influence of this electric field, they acquire a relatively high potential with respect to ground. If the core is not grounded, a potential difference will exist between the core and the grounded clamping structures and tank, which may lead to intermittent discharge.I
01/29/2026
What’s the Difference Between Rectifier Transformers and Power Transformers?
What is a Rectifier Transformer?"Power conversion" is a general term encompassing rectification, inversion, and frequency conversion, with rectification being the most widely used among them. Rectifier equipment converts input AC power into DC output through rectification and filtering. A rectifier transformer serves as the power supply transformer for such rectifier equipment. In industrial applications, most DC power supplies are obtained by combining a rectifier transformer with rectifier equ
01/29/2026
How to Judge, Detect and Troubleshoot Transformer Core Faults
1. Hazards, Causes, and Types of Multi-Point Grounding Faults in Transformer Cores1.1 Hazards of Multi-Point Grounding Faults in the CoreUnder normal operation, a transformer core must be grounded at only one point. During operation, alternating magnetic fields surround the windings. Due to electromagnetic induction, parasitic capacitances exist between the high-voltage and low-voltage windings, between the low-voltage winding and the core, and between the core and the tank. The energized windin
01/27/2026
A Brief Discussion on the Selection of Grounding Transformers in Boost Stations
A Brief Discussion on the Selection of Grounding Transformers in Boost StationsThe grounding transformer, commonly referred to as "grounding transformer," operates under the condition of being no-load during normal grid operation and overloaded during short-circuit faults. According to the difference in filling medium, common types can be divided into oil-immersed and dry-type; according to phase number, they can be classified into three-phase and single-phase grounding transformers. The groundi
01/27/2026
Related Products
Send inquiry
+86
Click to upload file
Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.