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]

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

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

The most important aging indicator of transformers is the water content in the solid part of the insulation (paper, pressboard). An accurate knowledge about the actual moisture concentration is thus required in order to decide if further corrective action, such as on-site drying, is necessary. [See More]

  • Phase: SIngle Phase
  • Test Parameters: Capacitance; Dielectric Response
  • Form Factor: Stand Alone / Bench
  • Features: Computer Interface