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TRS1

Transformer ratio standard

The TRS1 transformer ratio standard has been designed to be used with ratio meters as a high accuracy reference ratio standard. This unique standard is able to provide ratios in both step-down (traditional ratio test instruments) and step-up (Biddle Hand Crank TTR) test modes. The standard is designed for use as a laboratory calibration standard, or as a portable check standard for field ratio and phase verification of any ratio instrument.

The TRS1 can be used with any single-phase and three-phase ratio meter. Combining three TRS1 units together enables you to test a Wye-Wye configuration with three-phase ratio meters. When testing three-phase ratio meters with the TRS1, you need to use the instrument’s single-phase or three-phase excitation. This is meant as a time saving feature or to validate TTRU3 phase ratio meter models.

The TRS1 is primarily designed to be used in calibration facilities where accurate ratio transformation is required. In addition, The TRS1 is designed for rugged and easy use as a field ratio test kit. The connections are meant to handle large test clips and when ratio results of complex transformers are not as expected, the TRS1 provides you with field confirmation that the test instrument is working as intended and reporting ratio accurately.

  • Replaces PN 550050 and 550055
  • High accuracy 0.01 %
  • Rugged design for field use
  • Versatile, step-down and step-up ratio
  • Designed to be used with large test clips or banana jack inputs
  • Four-terminal Kelvin - no lead compensation required
  • Universal standard for use with all ratiometers

TRS1 Datasheet

 

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