Digital Transformer Ratiometer -- 8500
from Duncan Instruments Canada, Ltd.

Features: Designed for power transformers, VTs, PTs and CTs. Direct readings from 0.8000:1 to 1500.0:1. Display turns ratio, polarity and excitation current simultaneously. Dual power supply and operation: integrated rechargeable NiCD battery and AC supply. Display warnings of incorrect lead... [See More]

  • Standards / Compliance: ANSI
  • Test Parameters: Excitation Current; True Ratio and Polarity
  • Form Factor: Mobile
  • Protection: Output Short Circuit
Handheld TTR with 6ft (1.8m) test leads -- ME/TTR20
from Weschler Instruments

Single- and three-phase transformer testing. Fully automatic; fast; easy-to-use; robust; lightweight. Battery powered. Tests turns ratio, excitation current and polarity. Simple, one-button operation. Quick-start guide on front panel [See More]

  • Standards / Compliance: ANSI
  • Operating Temperature: -20 to 55
  • Features: Battery Powered; Graphic Results
Digital Transformer Ratiometer -- Model 8500 [Model 8500 from AEMC Instruments]
from Fotronic Corporation / Test Equipment Depot

The DTR-8500 is a portable digital transformer ratiometer designed for on-site testing of power, potential and current transformers. When connected to a non-energized transformer, the DTR-8500 accurately measures primary to secondary turns ratio, while simultaneously displaying polarity and... [See More]

  • Standards / Compliance: ANSI
  • Form Factor: Mobile
  • Phase: SIngle Phase; Three Phase
  • Test Parameters: Excitation Current; Turn Ratio; Winding Polarity