Automatic Transformer Ratiometer -- TR-SPY
from Duncan Instruments Canada, Ltd.

Top performance with single button operation: Fully automatic. Housed in rugged, lightweight and waterproof case. Laboratory accuracy of measurements: Voltage and Turns ratios. Phase displacement. Internal storage for test results. Single hookup to the transformer. Three voltage ranges: 10, 40 and... [See More]

  • Form Factor: Mobile
  • Test Parameters: Impedance Phase Angle; Phasing; Turn Ratio
  • Phase: Three Phase
  • Testing Voltage: 1 to 100
CTER Test Set -- CTER-91-115
from Megger

With Model CTER-91 current transformers can be tested while mounted in transformers, oil circuit breakers breakers or switchgear - without moving bushings and CTs. Using the voltage-comparison method, Model CTER-91 provides a variable-voltage output up to 1000 volts and precision instrumentation for... [See More]

  • Form Factor: Mobile
  • Test Parameters: Excitation Current; Winding Polarity; Ratio
  • Phase: SIngle Phase
  • Input Voltage: 120
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]

  • Form Factor: Mobile
  • Test Parameters: Excitation Current; Turn Ratio; Winding Polarity
  • Phase: SIngle Phase; Three Phase
  • Testing Voltage: 44
Sweep Frequency Response Analyzer -- FRAnalyzer
from OMICRON electronics Corp. USA

OMICRON's FRAnalyzer detects mechanical and electrical changes of the core and the winding assembly of power transformers by using the SFRA method. SFRA stands for Sweep Frequency Response Analysis, a worldwide proven technique for measurements in frequency domain that allows examining transformers... [See More]

  • Form Factor: Stand Alone / Bench; Mobile
  • Test Parameters: Winding Or Core Defects
  • Phase: SIngle Phase
  • Features: Battery Powered; Computer Interface