This is a 3-phase transformer turns ratio meter. It will automatically check out and display winding polarity and phase angle, turns ratio and percentage error. It is portable, light weight, less than 8Kg.

• High turns ratio range: 1-10,000
• Built-in large-size thermal printer.
• Phase angle and winding polarity measuring.
• Name-plate turns ratio calculation.
• Computer interface RS232.
• Auto transformer turns ratio meter has automatic phase switching.
• Automatic measures range switching.
• Automatic calibrates each measurement.
• When one time measuring finished, automatic shuts off testing voltage.
• Automatic saves measured result; history data can be viewed.
• When measuring loaded transformer, only input turn ratio one time.