Annual HV Maintenance Report

• Site Name

• Site Address
  Address
• BayWa r.e. Representative(s)
  Address

• Date of Visit

  Date

• Ticket Number

• Prepared by

TRANSFORMER STATIONS

• AHV01 - Visual inspection of the terminals and earthing

  ✔

  ✖

  N/A

• AHV02 - Check of evidence of moisture ingress

  ✔

  ✖

  N/A

• AHV03 - Check temperature sensors

  ✔

  ✖

  N/A

• AHV04 - Check abnormal noises and smells

  ✔

  ✖

  N/A

• AHV05 - Check gasketed joints for leaks

  ✔

  ✖

  N/A

• AHV06 - Check conservation of paint

  ✔

  ✖

  N/A

• AHV07 - Check dielectric fluid level

  ✔

  ✖

  N/A

• AHV08 - Test correct operation of protections

  ✔

  ✖

  N/A

• AHV09 - Test earth (simple)

  ✔

  ✖

  N/A

SUBSTATIONS

• AHV20 - Partial discharge test

  ✔

  ✖

  N/A

SWITCHGEAR

• AHV10 - General inspection for damage and sagging

  ✔

  ✖

  N/A

• AHV11 - Check for evidence of moisture

  ✔

  ✖

  N/A

• AHV12 - Check security of connections whilst circuits are dead

  ✔

  ✖

  N/A

• AHV13 - Check operation of circuit breakers

  ✔

  ✖

  N/A

• AHV14 - Protection relays functional test (non-injection test, functional only)

  ✔

  ✖

  N/A

• AHV15 - Check no evidence of arcing and all linkages and fixings are secure

  ✔

  ✖

  N/A

• AHV16 - Clean and inspect insulation for security and damage

  ✔

  ✖

  N/A

• AHV17 - Operation of UPS and batteries

  ✔

  ✖

  N/A

• AHV18 – Status of batteries

  ✔

  ✖

  N/A

ADDITIONAL 4 YEAR TASKS

• AHV20 - Mechanical checks (retorquing and tightening (if required), lubrication, confirming correct functionality of all switches and relays)

  ✔

  ✖

  N/A

• AHV21 - Intrusive inspection of cable terminals and switching mechanisms

  ✔

  ✖

  N/A

• AHV22 - Test network cables including transformers (insulation resistance -5KV megger)

  ✔

  ✖

  N/A

• AHV23 - Full G59 protection test (injection & parameter checking/setting)

  ✔

  ✖

  N/A

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• Additional Comments

• Name and Signature

  Sign