Title Page
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Audit Title
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Customer
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Service Date
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Prepared by
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Site Address
INSPECTION AND SERVICE REPORT
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Instructions:
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1. Answer "Compliant", "Non-Compliant", "N/A" for the questions below.
2. Fill out required fields and answer other questions as needed.
3. Add photos and notes by clicking on the paperclip icon.
4. To add a Corrective Measure click on the paperclip icon then "Add Action", provide a description, assign to a member, set priority and due date.
5. Complete audit by providing a digital signature.
6. Share your report by exporting as PDF, Word, Excel or Web Link.
GENERAL INFORMATION
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CONTACT PERSON
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PHONE NUMBER
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CUSTOMER ORDER NUMBER
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NHP SON NUMBER
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NHP PROJECT
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ACB
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USED AS:
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SERIAL NUMBER
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SPECIAL WIRING REQUEST NUMBER
LOOSE SCREWS OR BOLTS
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INSPECTION POINTS:
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• Assembly screws
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• Accessories mounting screws
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• Internal terminal screws
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Loose screws or bolts
DUST ACCUMULATION
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INSPECTION POINTS:
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• Top of each arc chute
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• insulation surfaces & recesses
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• Lubricated parts
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• Terminals
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• Operating mechanism
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Dust accumulation
SMOOTH SWITCHING OPERATION
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INSPECTION POINTS:
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• All mechanical part
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• Closing and Opening mechanisms
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• Moving contacts
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• Rotating shafts, rollers, bearings
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Smooth switching operation
CONTACTING CONDITION
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INSPECTION POINTS:
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• Main contacts
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• Arcing contact
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• Other
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Contacting condition
MISSING PARTS
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INSPECTION POINTS:
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• Screws, bolts, nuts
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• Snap rings, split pins, E rings
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• Springs
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• Other small parts
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Missing parts
DAMAGED PARTS
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INSPECTION POINTS:
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• Moulded insulators
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• Contacts
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• Coils CTS
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• Springs
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• Other
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Damaged Parts
CONDUCTOR DISCOLORATION
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INSPECTION POINTS:
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• Busbar connections
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• Stationary contacts
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• Conductor connections
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• Moving Contacts
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• Other
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Conductor discoloration
MANUAL CHARGING
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INSPECTION POINTS:
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Number of full strokes
INSULATION RESISTANCE
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• Current carrying part and ground
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• Poles
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• Arc chute grid plates
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Insulation Resistance
INTERNAL CONTACT RESISTANCE
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Internal contact resistance
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INSPECTION POINTS:
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• Total contact resistance between main terminals micro ohms
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A
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Before
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After
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B
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Before
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After
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C
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Before
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After
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N
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Before
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After
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Typical Normal Resistance:
ALIGNMENT OF MAIN CONTACTS
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INSPECTION POINTS:
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• Arcing contact at Close
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• Main contact open gap
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• Contact over travel
ELECTRICAL OPERATION
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INSPECTION POINTS:
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• Closing mechanism and associated accessories
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• Trip mechanism and associated accessories
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Electrical operation
Motor
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Voltage
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110% V
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85% V
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Coil Resistance (Motor spring charge)
LRC
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Voltage
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110% V
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85% V
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Coil Resistance (Closing device)
Shunt
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Voltage
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110% V
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85% V
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Coil Resistance (Tripping device)
UVT Motor
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Voltage
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110% V (Pickup> 85% V)
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85% V (Trip< 65% V)
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Coil Resistance (Attraction coil)
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Coil Resistance (Holding coil)
Magnetic Hold Tripping device
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85% V (MHT)
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Coil Resistance faulty?
COMPLETION
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Summary and Notes
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Inspected and Tested by:
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