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]

  • Test Parameters: Excitation Current; True Ratio and Polarity
  • Protection: Output Short Circuit
  • Form Factor: Mobile
  • Features: Battery Powered
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]

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

  • Test Parameters: Excitation Current; Turn Ratio; Winding Polarity
  • Form Factor: Mobile
  • Phase: SIngle Phase; Three Phase
  • Testing Voltage: 44
Test System For Predictive Maintenance In Power Transformers -- ETP
from SMC International

ETP SYSTEM is a complete predictive maintenance instrument to detect the problems before unexpected failures appear in power transformers, autotransformers, and instrument transformers, reducing non-programmed shutdowns, transport, and catastrophic costs. The main objective of the ETP system, is to... [See More]

  • Test Parameters: DC Resistance Match; Excitation Current; Impedance; Insulation Resistance; Turn Ratio; Time Constant, Recovery Voltage, Short Circuit Voltage Meter, Short Circuit Impedance
  • Form Factor: Rack Mount
  • Phase: Three Phase
  • Input Voltage: 115 to 230