What Is a 100 kVA Transformer and How Does It Work?

Transformers are an important part of our electrical world. They help us move electricity from one place to another safely and efficiently. One common type is the 100 kVA transformer. But what exactly is this transformer? How does it work? And why might someone need it?

In this article, PRABHA POWER, a trusted name in power and energy solutions, will explain everything you need to know about a 100 kva transformer in very simple words.

What Is a Transformer?

Before we talk about a 100 kVA transformer, let’s first understand what a transformer is.

A transformer is a device that changes the voltage of electricity. It can either increase (step-up) or decrease (step-down) the voltage. This is useful because different devices and systems need different voltages to work properly.

For example:

• Power stations generate high voltage electricity.

• But homes and offices need lower voltage to be safe.

So, a transformer helps to change the voltage from high to low or low to high depending on the need.

What Does kVA Mean?

Now, let’s understand the term kVA.

• kVA stands for kilo-Volt-Amps.

• 1 kVA = 1,000 Volt-Amps.

It is a unit used to measure apparent power in an electrical system.

Apparent power means the total power used by both:

• Real power (kW) – the actual power that does useful work.

• Reactive power (kVAR) – the power used to maintain the electric and magnetic fields in the system.

So, a 100 kVA transformer means the transformer can handle 100,000 Volt-Amps of electrical load.

What Is a 100 kVA Transformer?

A 100 kVA transformer is a type of electrical transformer that can manage a maximum load of 100 kilo-Volt-Amps. This kind of transformer is commonly used in:

• Industrial buildings

• Commercial spaces

• Large residential complexes

• Schools and hospitals

It helps to transfer electrical power safely and efficiently from the source to the place where it is needed.

At PRABHA POWER, we offer high-quality 100 kVA transformers that are reliable, durable, and safe for various applications.

How Does a Transformer Work?

Let’s break it down in simple steps:

1. Two Sets of Coils

A transformer has two main parts:

• Primary coil (input) – where the electricity enters.

• Secondary coil (output) – where the electricity exits.

These coils are wound around a magnetic core.

2. Magnetic Field

When electricity flows into the primary coil, it creates a magnetic field. This magnetic field passes through the core and reaches the secondary coil.

3. Voltage Change

The number of windings in each coil determines whether the voltage goes up or down.

• If the secondary coil has more windings than the primary – the voltage goes up (step-up transformer).

• If the secondary coil has fewer windings – the voltage goes down (step-down transformer).

The 100 kVA transformer can be either step-up or step-down, depending on your needs.

Types of 100 kVA Transformers

There are several types of 100 kVA transformers available at PRABHA POWER. Some common ones include:

1. Dry-Type Transformer

• No oil used for cooling.

• Air is used to cool the system.

• Safer and used indoors.

• Ideal for hospitals, offices, and schools.

2. Oil-Cooled Transformer

• Uses oil for cooling.

• Efficient for high loads.

• Mostly used outdoors or in industrial areas.

3. Single-Phase Transformer

• Has one input and one output line.

• Used in small to medium power needs.

• Great for homes and light commercial areas.

4. Three-Phase Transformer

• Has three input and three output lines.

• Used for heavy-duty power supply.

• Perfect for factories and large buildings.

At PRABHA POWER, we help customers choose the right transformer based on their needs.

Where Is a 100 kVA Transformer Used?

A 100 kVA transformer can be used in many places, such as:

1. Factories

Machinery in factories needs a steady power supply. A 100 kVA transformer ensures safe and continuous operation.

2. Commercial Buildings

Offices, malls, and shopping centers use these transformers to power lighting, AC systems, elevators, etc.

3. Hospitals

Hospitals need reliable electricity for equipment like ventilators, X-ray machines, and surgical tools.

4. Schools and Colleges

They use it to run lights, fans, computers, and lab instruments.

5. Residential Complexes

Large apartments use 100 kVA transformers to supply power to all flats and common areas.

Why Choose PRABHA POWER’s 100 kVA Transformers?

At PRABHA POWER, we make sure our 100 kVA transformers are of top quality. Here’s why you should choose us:

✔ High Efficiency

Our transformers are designed to reduce energy loss and save electricity.

✔ Long Life

We use the best materials, so our transformers last for many years with minimal maintenance.

✔ Safety

We follow all safety standards to protect your people and equipment.

✔ Custom Design

We offer custom-built transformers to match your exact voltage and load requirements.

✔ Technical Support

Our expert team helps with installation, service, and support at every step.

How to Choose the Right 100 kVA Transformer?

Before buying a transformer, here are a few things to consider:

1. Voltage Requirement

Know the input and output voltage levels needed for your building or machinery.

2. Phase Type

Decide if you need a single-phase or three-phase transformer based on your load.

3. Location

Choose dry-type for indoor use and oil-cooled for outdoor use or heavy loads.

4. Efficiency

Look for transformers with low energy loss for better savings.

5. Brand and Service

Always go for trusted brands like PRABHA POWER, which offer excellent after-sales service.

Installation and Maintenance

At PRABHA POWER, we also guide you in the proper installation and maintenance of your 100 kVA transformer. Here are some tips:

Installation Tips:

• Place it in a clean, dry, and well-ventilated area.

• Use proper cables and connectors.

• Ensure grounding and earthing are done correctly.

Maintenance Tips:

• Check oil levels regularly (for oil-cooled transformers).

• Inspect for dust, dirt, or moisture.

• Schedule routine inspections by trained professionals.

• Fix small issues before they become big problems.

Good maintenance increases the life of your transformer and avoids sudden failures.

Benefits of Using a 100 kVA Transformer

✅ Stable Power Supply

Keeps voltage levels safe and steady for all your equipment.

✅ Cost-Effective

A 100 kVA transformer is powerful enough for medium loads, yet economical to install and run.

✅ Scalable

Perfect for growing businesses and facilities that may expand their power needs.

✅ Reliable Performance

With high-quality models from PRABHA POWER, you get years of smooth performance.

Common Questions (FAQs)

Q1. Is 100 kVA enough for my building?

If your total load is around 80-90 kW, then a 100 kVA transformer should be enough. It's always best to get an expert opinion from PRABHA POWER.

Q2. How much does a 100 kVA transformer cost?

The cost depends on the type (oil or dry), brand, and features. PRABHA POWER offers competitive pricing with top quality.

Q3. Can I use a 100 kVA transformer for solar power systems?

Yes, many solar systems use transformers to adjust voltage. Just make sure it matches your solar system's output.

Final Words

A 100 kVA transformer is a powerful and reliable device used to manage electrical energy safely in buildings, factories, and homes. Whether you need to step up or step down voltage, a transformer helps keep your systems safe and running smoothly.

Choosing the right transformer is important. With PRABHA POWER, you get not only a quality product but also expert advice, custom designs, and full support.

So, if you are looking for a trusted 100 kVA transformer for your home, office, or industrial project, PRABHA POWER is here to help.

Reliable. Efficient. Trusted. That’s PRABHA POWER.