Transformer Testing

Transformer Field Testing

Native American Transformer Services, Inc. highly trained testing crew can test most any kind of field substation transformer.

We have vast knowledge on several different manufactures of transformers. Wether commissioning a new or relocated transformer, as a part of our routine maintenance or condition assessments, NATS wants to establish benchmarks for base comparisons of your transformer.

Tests available include the following:

DOBLE® POWER FACTOR TEST OF WINDINGS

DOBLE® POWER FACTOR TEST OF BUSHINGS

DOBLE® SURGE ARRESTER TEST

CORE RESISTANCE (MEGGER)

TTR (TRANSFORMER TURNS RATIO)

WINDING INSULATION RESISTANCE

WINDING EXCITATION

WINDING RESISTANCE

CT (CURRENT TRANSFORMER) RATIO, POLARITY AND SATURATION

OPERATIONAL CHECK OF CONTROLS

CALIBRATION OF GAUGES

THERMAL SCANS

DOBLE® SWEEP FREQUENCY RESPONSE ANALYSIS

PHASE RELATION

MATERIALS & OIL TESTING

OIL GENERAL CHEMISTRY

DGA (DISSOLVED GAS ANALYSIS)

FURFURAL ANALYSIS

PARTICLE COUNT

METALS-IN-OIL ANALYSIS

OUR WORKS

NATS has the equipment, experience and capability to complete repairs, upgrades, insulation dryouts, bushing replacements, LTC repairs/upgrades, and FR3™ retrofills.

These are but a few services we perform, please call or email for a complete list.