HWBS Station Inspection

• Site conducted

  Select

• Conducted on

  Date

• Prepared by

• May - 6 & 12 Monthly
  November - 6 Monthly
  All others - Monthly inspection only

Monthly Inspection

• O&M Buildings cleaned & bins emptied

  Yes

  No

• Fire maintenance complete and master fire panel free of alarms

  Yes

  No

• Oil water separator functional and clean

  Yes

  No

220kV Transmission Line Inspection

• Structures free of defects

  Yes

  No

• Corridor free of vegetation

  Yes

  No

• Any defects noticed during maintenance

  No

  Yes

• Complete 6 Monthly Inspection

  Yes

  No

6 Monthly Inspection

General Facility

• Perimeter fence, roads, doors, locks, hazard signs all in good order

  Yes

  No

• Eye wash station functional

  Yes

  No

• Internal lights functional

  Yes

  No

• External lights functional

  Yes

  No

• Security and CCTV functional

  Yes

  No

• Buildings free of damage, rodents

  Yes

  No

• Interior roads in good condition

  Yes

  No

• Drainage working

  Yes

  No

• Trench covers present and undamaged

  Yes

  No

220/33kV Yard

• Yard fence in good condition

  Yes

  No

• Gantries and other metallic structure free of rust

  Yes

  No

• 220kV VT free of oil leaks, damage, rust

  Yes

  No

220kV DS/ES

• Clean, undamaged, free of build up on insulators

  Yes

  No

• LV cables in good condition

  Yes

  No

• Gaskets in good condition

  Yes

  No

• Any other defects

  No

  Yes

220kV CB

• Bushings ok

  Yes

  No

• SF6 level ok

  Yes

  No

• Operation counter

• Door seal ok

  Yes

  No

• Heater working

  Yes

  No

• Any other defects

  No

  Yes

• 220kV Bus free of defects, debris

  Yes

  No

220/33kV Transformer

• Liquid levels ok

  Yes

  No

• Oil temp max

• HV winding temp max

• LV winding temp max

• Silica gel breathers ok

  Yes

  No

• Control cubicle seals ok, heaters working

  Yes

  No

• Fans and pumps functional

  Yes

  No

• Any other defects

  No

  Yes

33kV NET/Aux TX

• Winding temp max

• Any other defects

  No

  Yes
33kV GIS Block

• Indicating lights operating correctly

  Yes

  No

• External condition of switchgear ok

  Yes

  No

• SF6 indication green

  Yes

  No

• CB operation counter

• CB operation counter over 10000

  Yes

• Heaters working

  Yes

  No

• Free of moisture

  Yes

  No

• Any other defects

  No

  Yes
33kV RMU

• Relays operational

  Yes

  No

• External condition of switchgear ok

  Yes

  No

• SF6 indication green

  Yes

  No

• Any other defects

  No

  Yes
Core TX

• Current Temperature (C)

• Maximum Temperature (C)

• External condition

  Good

  Fair

  Poor

  N/A

• Complete 12 Monthly Inspection

  Yes

  No

12 Monthly Inspection

• Thermal images of 415V Switchboards (Control room, Block 1, Block 2, and Block 3)

  Yes

  No

General Facility

• Air conditioning units working

  Yes

  No

• Air conditioning filters cleaned

  Yes

  No

• Battery impedance check - X Battery

  Yes

  No

• Battery impedance check - Y Battery

  Yes

  No

220/33kV Yard

• Oil sample of T1.TX1 and OLTC

  Yes

  No

• Thermal images of all 220/33kV assets

  Yes

  No

• Lighting mast inspection

  Pass

  Fail

  N/A
Block

• Thermal Images of Block Switchboard

  Yes

  No

  N/A

• Battery impedance check complete

  Yes

  No

  N/A

• Oil samples taken - 30x Core transformer, 1x main transformer, 1x tap changer

  Yes

  No

  N/A