Transformer Overhaul and Refurbishment

Transformers and Generators

Transformers and Generators

A transformer is a static electrical device that transfers electrical energy between two or more circuits. A varying current in one coil of the transformer produces a varying magnetic flux which, in turn, induces a varying electromotive force across a second coil wound around the same core. Electrical energy can be transferred between the two coils, without a metallic connection between the two circuits. Transformers are used for increasing or decreasing the alternating voltages in electric power applications, and for coupling the stages of signal processing circuits.

Protech PAS has substantial experience in servicing, repairing and refurbishing power transformers of any size including:

· Gasket Replacement

· General Modifications

· Fitting Protective Devices

· Oven Drying of Windings

· Oil Testing and Paper Sample

· Oil Filtering

· Repair Tanks

· Bushing Replacement

· Testing and Calibration of Protection Devices

Protech PAS also has various testing services available, some common Tests that can be performed include:

· Vacuum and Pressure Testing

· Insulation Resistance

· Polarity Testing

· Dielectric Loss Analysis

· Ratio

· Winding Resistance

· Sweep Frequency response tests

· Transformer Turns Ratio

· Partial Discharge