winding Resistance

Equipment to Measure Transformer Winding Resistance

RAYTECH WR14

Pure, filtered DC power source for the highest accuracy readings
Charges inductive loads up to 1,500 Henry
Battery-operated
2 independent measuring channels
Fully automatic cooling curve analysis (option AHRT-01)
Fast discharge with discharge indicator – visible and audible indicator for discharge status

RAYTECH WR50-12

Pure, Filtered DC Power Source For The Highest Accuracy Readings
Complete, Automatic Calibration System And System Diagnostics
Automatic Measurements Of Resistance From 0.00μΩ To 100kΩ
Demagnetizing Circuit And Fastest Discharge Time On The Market
Internal Printer And Data Storage Of Over 10,000 Measurements
Simple To Operate Color LCD Touch Screen With Back Light

Raytech mini-ATOS

Built-in Fully Automatic Multiplexer
Winding Resistance Measurements, Dual Power Supply
Turns Ratio, Excitation Current and Phase Displacement Measurements
Transformer Winding Connection and Vector Group Detection
Demagnetization With the Raytech SPP (Smart Pattern Predictor) Method
Core Magnetic Balance Measurement
DRM (Dynamic Resistance Measurement)
FRSL (Frequency Response of Stray Losses)
Tap Changer Motor Current Measurement

VANGUARD TRM-403

Performs three phase testing on a transformer without the need to switch cables
Can provide individual Delta winding resistance values
Can provide individual Wye (with no neutral) winding resistance values
Demagnetize transformer after test
Selectable test current from 1A to 40A
Computer control via RS-232C, USB, or Bluetooth interface

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