KEL 007 N&S Interim Maintenance

• Conducted on

  Date

• Prepared by

• Location
  Address

• Where a text box is not provided please append any notes required to the relevant entry by tapping the paperclip symbol next to the question/task. Images can be attached in the same way.

Inverters/AC Distribution

• Are the Inverters operating according to the manufacturer's specifications?

  Yes

  No

  N/A

• Please describe the fault and attach image(s) where appropriate

• Do the Inverters show any indication of overheating, noise or vibrations?

  Yes

  No

  N/A

• Please describe the fault and attach image(s) where appropriate

• Check wiring and connection of parts using infra-red technology and report any defects here. Attach images where appropriate.

• Are all covers and door locks in good condition according to the manufacturers specifications?

  Yes

  No

  N/A

• Please describe the condition and attach image(s) where appropriate

• Is the humidity level in the AC cabinet acceptable?

  Yes

  No

  N/A

• Please describe the condition and attach image(s) where appropriate

• Check and clean a 10% sample of the cooling parts (fans or radiators depending on the inverter) according to the manufacturers specifcations - note which inverters were cleaned

• Inverters Cleaned:

• Did any of the inverter's cooling parts show signs of damage or malfunction?

  Yes

  No

  N/A

• Please describe the damage and note the inverter number. Attach image(s) if possible.

• Carry out thermographic inspections of a sample of 10% of the AC connections.

• Were any defects detected?

  Yes

  No

  N/A

• Please describe the defects and attach image(s) where possible

• Carry out a 10% sample check of electrical connections and connectors. Connectors should be checked, electrically tested and inspected for signs of over-heating or corrosion. Any coupling should be tightened according to the applicable torque rating as specified by the manufacturer.

• Do any of the checked connections show signs of overheating or corrosion?

  Yes

  No

  N/A

• Please describe the condition and attach image(s) where possible

• Check that there is no sign of damage by animals to a sample of 10% of the component parts.

• Did any checked components show signs of damage caused by animals?

  Yes

  No

  N/A

• Please describe the damage, note the component's location and attach image(s) where appropriate

• Is there any smell of burning or evidence of overheating from the AC equipment?

  Yes

  No

  N/A

• Please note which inverter the smell appears to be coming from

• Clean the inverter room and cabinets

Mains AC Connection to the PV System

• Check that a 10% sample of indicators, meters and instruments are functioning properly and do not present undue noise, vibration or abnormal smell. If applicable check resistors.

• Were all components functioning correctly and not presenting any of the listed concerns?

  Yes

  No

  N/A

• Please note malfunctioning components and attached images where appropriate.

PV Generator

• Visually assess the soiling and shading of the panels

• Please note any shading concerns or excessive soiling its source (if determined), attached images where appropriate

• Visually check that a sample of 10% of the panels are securely retained in the mounting system structure

• Were all panels checked securely retained?

  Yes

  No

  N/A

• Please note the panels location, and attach images of the issue

• Check and test a 10% sample of the DC connectors (DC string combiner box and both serial and parallel connections)

• Did any of the DC connectors present reason for concern?

  Yes

  No

  N/A

• Please describe the concern and attached images where appropriate

• Check the solar cables for damage, fixings and containment

• Were any of the solar cables or their fixings & containment damaged?

  Yes

  No

  N/A

• Please describe the damage, note the location and attached images where appropriate

• Do any of the panels show signs of mechanical damage or abnormal discolouring?

  Yes

  No

  N/A

• Please describe the condition, note the location and attached images where appropriate

• Carry out thermographic imaging of a 10% sample of strings

• Were any defects detected?

  Yes

  No

  N/A

• Please describe the defect, note the location and attached images where appropriate

Bird Deterrent Equipment

• Assess and test the components of the Bird Deterrent Equipment

• Are all components in good condition?

  Yes

  No

  N/A

• Please describe the condition, note the location and attached images where appropriate

Cleaning of panels

• Clean panels where dirt, debris or bird droppings are present

• Please note the location of any panels where excessive soiling was present