Testing & Maintenance
Transformer Testing & Maintenance
Field testing and maintenance of liquid-filled and dry-type transformers. Insulation, turns ratio, winding resistance, power factor, and oil sampling, performed and documented to ANSI/NETA and IEEE practices.
Scope
Liquid-filled and dry-type transformers
Deliverable
Detailed report with baseline comparisons
Standards
ANSI/NETA ATS · MTS · IEEE C57.152
Service Overview
Core, windings, and insulation. Measured, not assumed.
Transformer deterioration develops long before it causes an outage. The evidence is in the insulation, the windings, and the oil. NewEra Testing field teams perform acceptance and maintenance testing on power and distribution transformers, combining electrical diagnostics with visual and mechanical inspection. Results are compared against nameplate, factory, and prior field data, so developing problems surface early and condition is documented before return to service.
Equipment covered
Liquid-filled power transformers
Pad-mounted distribution transformers
Unit substation transformers
Dry-type and cast-coil transformers
Generator step-up transformers
Grounding transformers and reactors
Load and de-energized tap changers
Transformer bushings
Current and voltage transformers
Testing & Capabilities
Electrical diagnostics and fluid sampling, performed on site
Each test examines a different part of the transformer: core, windings, solid insulation, bushings, and fluid. Read together, they give a clear picture of condition.
Applicable Standards
Performed to recognized industry standards.
ANSI/NETA ATS
Acceptance Testing Specifications for Electrical Power Equipment and Systems
ANSI/NETA MTS
Maintenance Testing Specifications for Electrical Power Equipment and Systems
IEEE C57.152
Guide for Diagnostic Field Testing of Fluid-Filled Power Transformers, Regulators, and Reactors
NFPA 70B
Standard for Electrical Equipment Maintenance
NFPA 70E
Standard for Electrical Safety in the Workplace
From the Field
Methodology
How every job runs.
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FAQs
