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OLTC Service Sample Report
Sample report from an on-load tap-changer service engagement.
Original file: OLTC-SERVICE-SAMPLE-REPORT1.pdf
Transformer maintenance testing
OLTC service
Testing for power transformers equipped with on-load tap-changers, before and after service.
Precision for every decision
SPAJ brings methodical testing, practical field experience, and clear communication to each engagement. We scope the work around the asset and the decision you need to make.
01
Insulation resistance, turns ratio, and winding resistance
02
Dynamic resistance, tangent delta, and excitation current
03
Typical testing duration: 1–2 days
Reference library
Downloads and sample reports
Review representative SPAJ datasheets, service records, and sample reports before you plan your next testing or maintenance scope.
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