Inspection And Maintenance Procedures - Eaton Cutler-Hammer VCP-WR Series Instructions For The Use, Operation And Maintenance

Instruction Book
Page 42 Effective: February 2007

7-3 INSPECTION AND MAINTENANCE PROCEDURES

No./Section Inspection Item
1. Insulation Drive Insulator
and
Molded Pole Unit Support
Main Circuit to Ground
Insulation
Integrity
Between Main Circuit
Terminals.
Controls Circuit to Ground
2. Power Vacuum Interrupters
Elements
3. Control Closing and Tripping Device
Circuit Including Disconnects
Parts
Wiring
Terminals
Motor
Tightness of Hardware
4. Operating
Dust or Foreign Matter
Mechanism
Lubrication
Deformation or Excessive
Wear
Manual Operation
Criteria Inspection Method
No dirt
No cracking
Withstand
Withstand
Withstand
Visibility of Visual-Close the breaker
Contact Erosion and look for green mark on
Mark moving stem from the rear
of the breaker (see Figure 7-2
and 7-3).
Visual (Figures 7-4 and 7-5)
Contact wipe visible
See Section 7-4
Adequate Vacuum
Dirt on ceramic body
Visual Check
Smooth and correct Test closing and tripping of
operation by control the breaker twice
power
Securely tied in
Visual Check
proper place
Tight
Visual Check
Smooth, Normal
Functional Test
Operation
No loose or
Visual and tighten with
missing parts
appropriate tools
No dust or foreign
Visual Check
matter
Smooth operation
Sight and feel
and no excessive
wear
No excessive
Visual and operational
deformation or wear
Smooth operation
Manual charging, closing
and tripping
For more information visit: www.EatonElectrical.com
Corrective Action
Visual Check Clean with lint-free cloth.
Visual Check Replace cracked unit
Clean and retest or replace
Hipot Tester
Clean and retest or replace
Hipot Tester
Clean and retest or replace
Hipot Tester
If mark is not visible, replace
pole unit assembly.
Replace pole unit assembly
Replace pole unit assembly
Clean with dry lint-free cloth.
Replace any defective
device, Identify per troubleshooting
chart
Repair or tie as necessary
Tighten or replace if necessary
Replace brushes or motor
Tighten or reinstate if
necessary
Clean as necessary
Lubricate very sparingly with
light machine oil
Remove cause and replace
parts
Correct per trouble-shooting
chart if necessary
I.B. 8295A61H07