The LTCA-40 is Vanguard’s winding resistance meter and load tap changer contact analyzer. The Vanguard LTCA-40 Load Tap Changer Analyzer is designed to accurately measure the… Read More »Vanguard LTCA-40 Designed to Accurately Measure Winding Resistance
Transformer winding resistance can help you determine the condition of transformers. When a transformer develops defects like coil to core or coil to coil shorts, opens and corroded connectors, the resistance of the windings change. It is a good idea to regularly test transformer components because a defect can cause severe power losses, electrical instability and eventual failure.
Read More »Transformer Winding Resistance Measurement with Raytech Winding Resistance Meters
The Megger MWA330A 3-Phase Transformer Turns Ratio and Winding Resistance Analyzer is an advanced 3-phase transformer test system that provides complete ratio, phase and winding resistance measurements with only one 3-phase lead-set connection.
Once connected, the Megger MWA330A performs DC resistance measurements on all high- and low-side windings without reconnection. It has an 8-terminal/6-winding resistance measurement capability and doesn’t need any inter-connected boxes, allowing for testing on all 6 windings without having to disconnect and reconnect leads.
Read More »Rent the Megger MWA330A 3-Phase TTR, Winding Resistance Analyzer
When it comes to testing transformers and rotating machine windings, the Raytech WR14 15 Amp Winding Resistance Meter performs low-current resistance measurements on connections, contacts and control circuits.
The WR14 is a battery or line-operated, field-portable instrument designed specifically to securely and precisely measure the DC resistance of all types of magnetic windings.
Read More »Rent the Raytech WR14 to Test Transformers, Rotating Machine Windings
Transformer configuration designations like “Delta” and “Wye” originate from the way the windings are connected inside the transformer. These connections determine the way the transformer will perform, and they also determine the methods of calculation required for properly applying a given transformer.
Read More »To Test Delta or Wye Transformers Consider Renting a Vanguard TRM-403
The Raytech WR50-12 Two Channel Winding Resistance Test Set is a 50 Amp, 2 Channel Winding Resistance Meter with Demagnetization and Discharge. The unit features a pure, filtered DC power source for the highest accuracy readings of any high current test system.
Read More »Rent the Raytech WR50-12 for Winding Resistance Measurement
In the past, winding resistance measurements were taken using the Kelvin Bridge, an arrangement of resistors which enables the measurement of very low resistances. Winding Measurement Kits work by injecting known current through the winding and measuring the voltage drop across the winding.
Read More »Collect Data for Up to 90 Minutes with the Vanguard TRM-403