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AEMC 8510 DTR Digital Transformer Ratiometer - 110/220V
AEMC 8510 DTR Digital Transformer Ratiometer - 110/220V

AEMC 8510 DTR Digital Transformer Ratiometer - 110/220V

Part Number:2136.5
temporarily out of stock - back in stock in 5 to 10 days

AEMC 8510 DTR Digital Transformer Ratiometer - 110/220V

When connected to a non-energized transformer, the AEMC DTR 8510 accurately measures primary to secondary turns ratio, while simultaneously displaying polarity and excitation current. The DTR is fully automatic and uses an ANSI/IEEE compliant test method.

The AEMC DTR 8510 Digital Transformer Ratiometer is a portable digital transformer ratiometer designed for on-site testing of power, potential and current transformers. No user calibration, range selection, hand cranking or tedious balancing is required. At each measurement, the DTR automatically self-calibrates and checks for open windings/connections/circuit breakers, short circuits (excess excitation current), incorrect test lead placement, and reverse polarity. Measurements are displayed quickly and accurately.


  • Ratio Testing: PT/VT from 0.8000:1 to 8000:1 and CT from 0.8000 to 1000.0 (Auto-Ranging) 
  • Tests performed by exciting the primary and reading the secondary; provides safer conditions for the operator on step-down transformers
  • Continuity test indicates open or loose (high resistance) terminal connections
  • DC test mode eliminates errors due to magnetic build up
  • Stores up to 10 primary/secondary nameplate voltages to use in comparing test results
  • Displays ratio, test current, winding polarity, and deviation from nameplate voltage or ratio
  • Stores up to 10,000 test results
  • DataView software included which allows configuring the instrument, downloading stored measurements and printing of test results in a report format
  • Display warns of incorrect lead connection, reverse polarity, open and short circuits


  • Power transformers
  • Potential transformers
  • Current transformers

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