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Transformer Inspection Checklist: Section A - Customer Data

This document is a transformer inspection checklist used to record inspection results. It contains sections for customer data, equipment data, a visual and mechanical inspection, and electrical tests. The inspection checks things like the exterior condition, proper grounding and connections, insulation levels, turns ratios, and auxiliary device operation. Any issues found are noted and conditions are marked as acceptable, needing repair, or corrected.

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Lokesh Kumar
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386 views1 page

Transformer Inspection Checklist: Section A - Customer Data

This document is a transformer inspection checklist used to record inspection results. It contains sections for customer data, equipment data, a visual and mechanical inspection, and electrical tests. The inspection checks things like the exterior condition, proper grounding and connections, insulation levels, turns ratios, and auxiliary device operation. Any issues found are noted and conditions are marked as acceptable, needing repair, or corrected.

Uploaded by

Lokesh Kumar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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TRANSFORMER INSPECTION CHECKLIST

For use of this form see TM 5-694; the proponent agency is COE.

SECTION A - CUSTOMER DATA


1. PLANT/BUILDING 2. LOCATION 3. JOB NUMBER

4. EQUIPMENT 5. CIRCUIT DESIGNATION 6. DATE (YYYYMMDD)

7. TEST EQUIPMENT TYPE/BRAND AND CALIBRATION DATE 8. TESTED BY

SECTION B - EQUIPMENT DATA


9. MANUFACTURER 10. STYLES/S.O. 11. VOLTAGE RATING 12. CURRENT RATING

13. WET BULB TEMPERATURE 14. DRY BULB TEMPERATURE 15. ENCLOSURE TYPE 16. FREQUENCY

SECTION C - VISUAL AND ELECTRICAL/MECHANICAL INSPECTION


17.
CHECK POINT COND* NOTES CHECK POINT COND* NOTES

PROPER PHASE CONNECTION AND COLOR


EXTERIOR OF EQUIPMENT
CODE

COMPLETENESS OF ASSEMBLY HAZARDOUS LOCATION

PROPER GROUNDING WORKING CLEARANCE

CONDITION OF INSULATION ANCHORAGE

TIGHTNESS OF BOLTED CONNECTIONS REFERENCE DRAWINGS

SEALS AND OIL LEVELS TURNS RATIO MEASUREMENTS

WINDING CONFIGURATION AUXILIARY DEVICE OPERATION

SECTION D - ELECTRICAL TESTS


18. INSULATION RESISTANCE A-GRD B-GRD C-GRD A-B B-C C-A

@ V

POLARIZATION INDEX

TURNS RATIO TEST

POWER FACTOR

PROPER VOLTAGE

19. NOTES:

1. PERFORM GROUND RESISTANCE TESTS PRIOR TO ENERGIZING EQUIPMENT.

2. GROUND RESISTANCE TESTS MUST BE PERFORMED IN DRY CONDITIONS AND SHALL BE PERFORMED
48 HOURS AFTER RAINFALL.

*CONDITION: A=ACCEPTABLE; R=NEEDS REPAIR, REPLACEMENT OR ADJUSTMENT; C=CORRECTED; NA=NOT APPLICABLE

DA FORM 7464-R, AUG 2002 APD LC v1.00

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