JC-009

• Site

• Conducted on

  Date

• Prepared by

• Location
  Address

• Local DNO Licence Area

• DNO Substation ID

General Periodic Inspection

• Thermographic Inspection of the installation

  Pass

  Fail

  N/A

• Housekeeping within protection and control buildings

  Pass

  Fail

  N/A

• General Visual inspection of access and perimeter compound.

  Pass

  Fail

  N/A

• Inspection of state of oxidation and general painting of equipment.

  Pass

  Fail

  N/A
Current and voltage transformers

• Inspection of primary and secondary earth connections

  Pass

  Fail

  N/A

• Thermographic general inspection of transformer

  Pass

  Fail

  N/A
Power & Auxiliary Transformers

• Transformer Description

• Transformer Serial Number

• Make/Model

• Number of Tap Change operations

• Inspection of local temperatures, earthing connections, bushing, abnormal sounds

  Pass

  Fail

  N/A

• Inspection of general oil level and filters

  Pass

  Fail

  N/A

• Visual Inspection of general equipment (Buchholz, oil level, thermal image)

  Pass

  Fail

  N/A

• Thermographic analysis of Bushings connections, auxiliary tanks, Silica-gel breathings, etc.

  Pass

  Fail

  N/A

• Oil Sample taken

  Pass

  Fail

  N/A

• Furan Analysis

  Pass

  Fail

  N/A

• Replacement of Silica Gel and Oil filter

  Pass

  Fail

  N/A

• Indication check

  Pass

  Fail

  N/A

• General Transformer Condition Check/Paintwork

  Pass

  Fail

  N/A
Disconnectors and Motor Controls

• Inspection of earthing connections

  Pass

  Fail

  N/A

• Number of Operations

• Statius Indicator

  Pass

  Fail

  N/A

• Inspection of Auxiliary Switches, local and remote signalling

  Pass

  Fail

  N/A

• On load Thermographic inspection

  Pass

  Fail

  N/A

• Heaters inspections and test

  Pass

  Fail

  N/A
Circuit Breakers and Switchgear Identification

• Type

• Make

• Model

• Serial Number

• Inspection of earthing connections

  Pass

  Fail

  N/A

• Inspection vents entries, heating and ventilation

  Pass

  Fail

  N/A

• Status Indicator/Mimic Condition

  Pass

  Fail

  N/A

• Condition of Paintwork

  Pass

  Fail

  N/A

• Oil/SF6 Levels within correct limits

  Pass

  Fail

  N/A
Additional Checks

• Test transformer fans and pumps

  Pass

  Fail

  N/A

• Test Water Pump System if applicable

  Pass

  Fail

  N/A

• Condition of flood defence system

  Pass

  Fail

  N/A

• Run 132-33KV Transformer Auxiliary cooling up to<br>confirm correct operation

  Pass

  Fail

  N/A

• Test heating working correct within Auxiliary control<br>cabinet and Tap Changer control cabinet

  Pass

  Fail

  N/A

• Check SF6 Gas pressure on switchgear

  Pass

  Fail

  N/A

• Check Dehumidifiers / Air condition /Heating / pumps<br>within the Substation

  Pass

  Fail

  N/A

• Visual inspection of 132kV Lines/Apparatus/disconnectors.

  Pass

  Fail

  N/A

• Visual inspection of compound bonding/Earthing to<br>apparatus and continuity

  Pass

  Fail

  N/A

• Check and record any recent protection operations and<br>reset relays

  Pass

  Fail

  N/A

• Oil Samples Taken Y/N

  Yes

  No

  N/A

• Why was sample not taken

• Silica Gel and Oil filter condition

  Pass

  Fail

  N/A

• Has Silica Gel Been Replaced

  Yes

  No

  N/A

• Comments:

• Remedial Works Completed

  Yes

  No

  N/A

• Safety Concerns

  Safe

  At Risk

  N/A

• Signature

  Sign