Transformer Turns Ratio Tester -- TTR™20
from Megger

The Megger TTR20 is an automatic, hand-held, battery operated transformer turns ratio test set. It is used to measure the turns ratio, excitation current and polarity of windings in single- and three-phase distribution and power transformers (tested phase by phase), potential & current... [See More]

  • Features: Battery Powered; Graphic Results
  • Form Factor: Hand-Held
  • Phase: SIngle Phase; Three Phase
  • Test Parameters: Excitation Current; Turn Ratio; Winding Polarity
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]

  • Features: Battery Powered; Graphic Results
  • Operating Temperature: -20 to 55
  • Standards / Compliance: ANSI