Transformer Inspection Checklist Form PDF Details

Ensuring the safety and efficiency of electrical transformers is paramount in any plant or building's operation. The Transformer Inspection Checklist form serves as a comprehensive tool for assessing the condition of these crucial pieces of equipment. This form, outlined in TM 5-694 and backed by the COE as the proponent agency, systematically guides the inspector through a thorough examination process. It begins with Section A, which gathers basic customer data including the plant or building location, job number, and specific equipment and circuit designation, setting the stage for a detailed inspection. The ensuing Section B delves into equipment data – capturing information about the manufacturer, style, voltage, and current ratings among other technical specifications. The criticality of maintaining optimal operational conditions is underscored in Section C, focusing on both visual and electrical/mechanical inspections. This section examines the exterior of the equipment, ensuring proper phase connections, grounding, and the operational integrity of auxiliary devices, to name a few. Finally, Section D details electrical tests critical for verifying the insulation resistance, power factor, and overall electrical health of the transformer. Accompanied by a condition key that ranges from acceptable to needing repair, replacement, or adjustment, this checklist not only promotes regular maintenance routines but also contributes significantly to preventing potential failures, thereby safeguarding both personnel and the facility.

QuestionAnswer
Form NameTransformer Inspection Checklist Form
Form Length1 pages
Fillable?No
Fillable fields0
Avg. time to fill out15 sec
Other namesPreventive Maintenance Transformer Inspection Checklist Form, DA Form 7464-R

Form Preview Example

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXTERIOR OF EQUIPMENT

 

 

 

 

 

PROPER PHASE CONNECTION AND COLOR

 

 

 

 

 

 

 

 

 

 

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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Part no. 1 for filling out Transformer Inspection Checklist Form

2. Once your current task is complete, take the next step – fill out all of these fields - TIGHTNESS OF BOLTED CONNECTIONS, REFERENCE DRAWINGS, SEALS AND OIL LEVELS, TURNS RATIO MEASUREMENTS, WINDING CONFIGURATION, AUXILIARY DEVICE OPERATION, INSULATION RESISTANCE, AGRD, BGRD, CGRD, SECTION D ELECTRICAL TESTS, POLARIZATION INDEX, TURNS RATIO TEST, POWER FACTOR, and PROPER VOLTAGE with their corresponding information. Make sure to double check that everything has been entered correctly before continuing!

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