elecmaint / equipment inspection record
Autotransformers Maintenance Checklist
Engineer name
Date
Work scope & measurement context (optional record fields)
References only. This site supplies no acceptance values, test settings, intervals or release instructions. Selecting a scope does not authorize work. Use Remarks for row-specific context; refer to original files, which are not uploaded here.
Draft · technical review pending. Recording prompts only; not procedures or acceptance criteria. Work and access require your approved plan. No normal ranges, pass/fail values, test settings or maintenance intervals are supplied. Condition results are user-entered judgements under separately approved criteria. Evidence/task/measurement OK means the specified record is complete, not healthy equipment. This checklist does not authorize release to service. Unit selection does not convert values.
Research context & source scope
- USBR FIST technical library — Hydropower maintenance reference library; check edition and installation applicability.
These links do not validate every checkpoint. Technical approval pending; identify the exact applicable manual and work plan.
How to read this form
- As-found observation
- Describe what was observed. OK / Not OK are unavailable.
- Condition
- OK = User assessment under the referenced approved criteria.
- Measurement record
- OK = Required measurement record and context are complete.
- Evidence check
- OK = Required reference or evidence is verified.
- Task record
- OK = The specified recording task is complete.
- Blank / Pending / N/A
- Blank is unclassified. Pending identifies missing checks, evidence or criteria. N/A needs a reason in Remarks.
No row or completed form certifies safety, compliance or fitness for service.
Engineer/date/signature spaces remain for handwriting. Multiple records can be saved locally in this browser and exported; no cloud backup, file attachments or team approval is provided. Older template records stay separate and are not reinterpreted. Keep sensitive information off shared devices.
0 of 50 checkpoints recorded
Compare with an earlier saved inspection
Enter the same Equipment ID, Site and installed-asset identity / serial reference. Only the same template revision is compared. Context and units are shown without conversion or condition verdicts.
Records on hand & preparation
Record the documents and scope available for this inspection. Recording completion is not work authorization.
1
Record equipment identity, subtype, model and maintenance scopeTask record · OK = The specified recording task is complete
2
Review previous inspection, repair and original test recordsTask record · OK = The specified recording task is complete
3
Record operating events, known defects and outstanding follow-upTask record · OK = The specified recording task is complete
4
Reference current manufacturer maintenance instructions and approved work controlsTask record · OK = The specified recording task is complete
5
Record approved methods and instrument/calibration references for planned testsTask record · OK = The specified recording task is complete
6
Identify fitted parts, maintenance exclusions and baseline comparison conditionsTask record · OK = The specified recording task is complete
| No. | Checkpoint | Value / observation | OK | Not OK | N/A | Remarks |
|---|---|---|---|---|---|---|
| 7 | Corrosion, coating damage and impact marks are recorded by locationEvidence check · OK = Required reference or evidence is verified | |||||
| 8 | Door seals, latches, hinges and covers have documented conditionEvidence check · OK = Required reference or evidence is verified | |||||
| 9 | Water ingress, condensation and contamination evidence are recordedEvidence check · OK = Required reference or evidence is verified | |||||
| 10 | Mounting, anchoring and accessible structural supports are documentedEvidence check · OK = Required reference or evidence is verified | |||||
| 11 | Enclosure inspection and ingress-control record — attach the approved report with method, conditions and source reference; only if in scopeEvidence check · OK = Required reference or evidence is verified | |||||
| 12 | Maintenance follow-up for enclosure & structure: change from baseline, service/replacement performed and unresolved defect referenceEvidence check · OK = Required reference or evidence is verified |
| No. | Checkpoint | Value / observation | OK | Not OK | N/A | Remarks |
|---|---|---|---|---|---|---|
| 13 | Winding and phase identification match the reviewed nameplate/drawingEvidence check · OK = Required reference or evidence is verified | |||||
| 14 | Accessible winding insulation and lead support condition are documentedEvidence check · OK = Required reference or evidence is verified | |||||
| 15 | Winding thermal or overload event history is recordedEvidence check · OK = Required reference or evidence is verified | |||||
| 16 | Test reports identify tap, winding pair, temperature and instrumentEvidence check · OK = Required reference or evidence is verified | |||||
| 17 | Approved winding-resistance report — attach the approved report with method, conditions and source reference; only if in scopeMeasurement record · OK = Required measurement record and context are complete | |||||
| 18 | Maintenance follow-up for windings: change from baseline, service/replacement performed and unresolved defect referenceEvidence check · OK = Required reference or evidence is verified |
| No. | Checkpoint | Value / observation | OK | Not OK | N/A | Remarks |
|---|---|---|---|---|---|---|
| 19 | Fluid type, compartment and service record are identifiedEvidence check · OK = Required reference or evidence is verified | |||||
| 20 | Leak locations at seals, welds, valves and flanges are recordedEvidence check · OK = Required reference or evidence is verified | |||||
| 21 | Level indication is recorded with load/temperature contextEvidence check · OK = Required reference or evidence is verified | |||||
| 22 | Sampling and laboratory records preserve sample point, date and methodEvidence check · OK = Required reference or evidence is verified | |||||
| 23 | Oil temperature indication at the identified sensor; retain operating contextMeasurement record · OK = Required measurement record and context are complete | |||||
| 24 | Approved fluid laboratory report; retain original quantities and units — attach the approved report with method, conditions and source reference; only if in scopeEvidence check · OK = Required reference or evidence is verified | |||||
| 25 | Maintenance follow-up for insulating-fluid system: change from baseline, service/replacement performed and unresolved defect referenceEvidence check · OK = Required reference or evidence is verified |
| No. | Checkpoint | Value / observation | OK | Not OK | N/A | Remarks |
|---|---|---|---|---|---|---|
| 26 | Tap changer model, position and operation count are recordedEvidence check · OK = Required reference or evidence is verified | |||||
| 27 | Drive cabinet, linkage and position indication condition are documentedEvidence check · OK = Required reference or evidence is verified | |||||
| 28 | Separate oil compartment and filter records are referenced where fittedEvidence check · OK = Required reference or evidence is verified | |||||
| 29 | Limit, interlock and tap position verification reports are attachedEvidence check · OK = Required reference or evidence is verified | |||||
| 30 | Tap operation counter reading from the identified mechanismMeasurement record · OK = Required measurement record and context are complete | |||||
| 31 | Approved tap-position and mechanism verification report — attach the approved report with method, conditions and source reference; only if in scopeEvidence check · OK = Required reference or evidence is verified | |||||
| 32 | Maintenance follow-up for tap changer: change from baseline, service/replacement performed and unresolved defect referenceEvidence check · OK = Required reference or evidence is verified |
| No. | Checkpoint | Value / observation | OK | Not OK | N/A | Remarks |
|---|---|---|---|---|---|---|
| 33 | Neutral connection and grounding arrangement match reviewed drawingsEvidence check · OK = Required reference or evidence is verified | |||||
| 34 | Neutral conductor identification and support condition are documentedEvidence check · OK = Required reference or evidence is verified | |||||
| 35 | Neutral bonds and accessible connections are inspected within scopeEvidence check · OK = Required reference or evidence is verified | |||||
| 36 | Changes to neutral arrangement and associated study review are recordedEvidence check · OK = Required reference or evidence is verified | |||||
| 37 | Approved neutral-circuit inspection or test report — attach the approved report with method, conditions and source reference; only if in scopeEvidence check · OK = Required reference or evidence is verified | |||||
| 38 | Maintenance follow-up for neutral connections: change from baseline, service/replacement performed and unresolved defect referenceEvidence check · OK = Required reference or evidence is verified |
| No. | Checkpoint | Value / observation | OK | Not OK | N/A | Remarks |
|---|---|---|---|---|---|---|
| 39 | Protective earth and bonding conductor identification is recordedEvidence check · OK = Required reference or evidence is verified | |||||
| 40 | Accessible bonds, clamps and joints show documented conditionEvidence check · OK = Required reference or evidence is verified | |||||
| 41 | Missing conductors, corrosion and mechanical damage are recordedEvidence check · OK = Required reference or evidence is verified | |||||
| 42 | Reviewed earth drawing and continuity measurement locations are referencedEvidence check · OK = Required reference or evidence is verified | |||||
| 43 | Approved bonding-continuity report — attach the approved report with method, conditions and source reference; only if in scopeMeasurement record · OK = Required measurement record and context are complete | |||||
| 44 | Maintenance follow-up for grounding & bonding: change from baseline, service/replacement performed and unresolved defect referenceEvidence check · OK = Required reference or evidence is verified |
| No. | Checkpoint | Value / observation | OK | Not OK | N/A | Remarks |
|---|---|---|---|---|---|---|
| 45 | Attach original reports, photographs and manufacturer-document referencesTask record · OK = The specified recording task is complete | |||||
| 46 | Record units, method, conditions and instrument identity for each entered resultTask record · OK = The specified recording task is complete | |||||
| 47 | Explain excluded or inapplicable parts and missing evidenceTask record · OK = The specified recording task is complete | |||||
| 48 | Record discrepancies and assign follow-up owner and due-date referenceTask record · OK = The specified recording task is complete | |||||
| 49 | Record qualified review and separately authorized dispositionTask record · OK = The specified recording task is complete | |||||
| 50 | Reference restoration or release records; this checklist does not authorize releaseTask record · OK = The specified recording task is complete |
Engineer signature
Reviewer / reference
elecmaint.com · Template V6 · 50 checkpoints · No automatic condition assessment. OK does not certify safety or fitness for service. N/A requires an explanation; unknown/unverified items remain unclassified.