Measurements International Model 7070A-U AC Ratio Bridge with touchscreen measurement display.

7070A-UI AC Ratio Bridge

  • Calibrate voltage and current transformers with a single instrument
  • Calibrate instrument transformers with differently-rated ratios using a single reference standard
  • Calibrate voltage transformers (VT) up to 800 kV (when used with MI 2500 Series of HV dividers and standard capacitors)
  • Calibrate current transformers (CT) up to 10,000 A (when used With MI 7020 / 72XX series of precision current transformers/current comparators
  • Test frequency: 15 Hz – 100 Hz
Measurements International Model 7070A-U AC Ratio Bridge with touchscreen measurement display.

7070A-U AC Voltage Ratio Bridge

  • Calibrate voltage transformers from a single instrument
  • Calibrate instrument transformers with differently-rated ratios using a single reference standard
  • Calibrate voltage transformers (VT) up to 800 kV when used with MI 2500 Series of HV dividers and standard capacitors
  • Shorter measurement times with high-accuracy and low-inherent burdens
  • Instrument applications are valid for single-phase measurements
  • 3-phase transformer measurements are performed by testing each phase separately
  • Test frequency: 15 Hz – 100 Hz
AC Current Ratio Bridge | current ratio measurement | NM | current transformer | AC current ratio bridge

7070A-I AC Current Ratio Bridge

  • Calibrate current transformers from a single instrument
  • Calibrate instrument transformers with differently-rated ratios using a single reference standard
  • Calibrate current transformers (CT) up to 10,000 A when used with MI 7020 and/or 7200 series of precision current transformers and/or current comparators
  • Shorter measurement times with high-accuracy and low-inherent burdens
  • Instrument applications are valid for single-phase measurements. 3-phase transformer measurements are tested individually
  • Test Frequency: 15 Hz – 100 Hz