On-Load Tap-Changer TYPE XT
External Mounted OLTC
Reliable • Compact • Easy Maintenance

On-Load Tap-Changer TYPE XT

External Mounted OLTC
Reliable • Compact • Easy Maintenance

Why XT Matters

The XT External Mounted On-Load Tap-Changer is designed for uninterrupted voltage adjustment in oil-type transformers under load
Its compact three-phase modular structure allows easy transformer integration while ensuring reliable operation, easy servicing, and reduced installation complexity
  • Compact. Smart. Cost-effective.
  • Salient Features
  • Technical Highlights
  • Applications
  • Support & After Sales

Compact Design.intelligent Control.lower Cost

Compact, service and installation-friendly design.

Full local/remote control with operating position and end-limit indication.

Equipped with a standard step by step motor drive.

Reduced oil volume lowers costs.

Salient Features

XT offers operational flexibility with:

High-speed resistor type tap change operation

Step-by-step switching principle

Built-in motor drive unit

Electrical & mechanical end position limits

Local and remote control capability

Remote operating position indication

Side windows for easy lead connection

Technical Highlights

Specifications: 

Model: XT III 300

Number of poles: 3

Max rated through-current: 300 A

Rated short-time withstand current: 17 kA

Peak withstand current: 35 kA

Max rated step voltage: 1,200 V

Max operating positions: 10

Frequency: 50/60 Hz

Cooling medium: Oil

Installation type: Outdoor

Applications

Ideal For: 

Oil-type power transformers

Outdoor transformer installations

Industrial power systems

Grid voltage regulation applications

Compact transformer setups

Support & After Sales

EMR Provides: 

Technical assistance

Spare parts support

Installation guidance

Maintenance support

Reliable customer service

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