
📊 KATOY Reactor Transformers
A reactor transformer (sometimes called a transformer with a reactor, or series reactor transformer) is a specialized transformer that includes or works in conjunction with a reactor (inductor) to control current, voltage, or power quality in an electrical system.
Katoy can manufacturer Reactor Transformers to any specification required for your application.
⚡ What Is a Reactor?
A reactor is essentially a coil of wire with inductance that resists changes in current. It limits fault current, filters harmonics, or helps manage voltage fluctuations.
🧩 What Is a Reactor Transformer?
A reactor transformer combines the functions of both:
- A transformer — to change voltage levels.
- A reactor — to limit or smooth current.
This can be done by:
- Integrating a reactor into the transformer windings or core.
- Connecting a reactor in series with the transformer in the system.
🧲 Types and Uses
1. Series Reactor Transformer
- A reactor is connected in series with the transformer’s output.
- Use: Limits inrush or short-circuit current; protects equipment.
2. Shunt Reactor Transformer
- A reactor is connected across (parallel) the power line.
- Use: Absorbs reactive power in long transmission lines; stabilizes voltage.
3. Load Balancing Reactor Transformer
- Helps balance uneven loads across a three-phase system.
4. Harmonic Filtering Transformer
- Reactor included to block or reduce harmonics in power systems.
🏭 Where It’s Used
- Electrical substations
- High-voltage transmission lines
- Power plants
- Industrial motor drives
- Reactive power compensation systems
- Renewable energy systems (wind/solar inverters)
🔧 Benefits
Protects downstream equipment
Limits fault current
Improves voltage regulation
Reduces harmonics
Enhances power factor