• Used for testing single phase power and distribution transformers
• Design based on precision bridge measuring technique
• Available in hand-cranked or line-operated models
• Unmatched accuracy (±0.1%) in a portable design
  

The single-phase TTR measures the turns ratio and exciting current of windings in power, potential and current transformers. Deviations in turns ratio readings indicate problems in one or both windings or the magnetic core circuit.

The TTR aids in identifying:

• Shorted coils
• Open circuits
• Incorrect connections
• Intenral faults or tap-changer defects in step regulators as well as in transformes