Inspection And Maintenance Procedures - Eaton VCP-W Instructions For Installation, Operation And Maintenance

IB131006EN

6.3 INSPECTION AND MAINTENANCE PROCEDURES

No./Section Inspection Item
Drive Insulator, Barriers,
1.Insulation
and
Stand-off Insulators
Main Circuit to Ground
Insulation
Integrity
Between Main Circuit
Terminals
Control Circuit to Ground
2. Power Vacuum Interrupters
Elements
Primary Disconnects
Pole Unit X-Washers
for 150 VCP-W 63
Closing and Tripping Device
3. Control
Including Disconnects
Circuit
Parts
Wiring
Terminals
Motor
Tightness of Hardware
4. Operating
Mechanism
Dust or Foreign Matter
Lubrication
Deformation or Excessive
Wear
Manual Operation
CloSure Test
E f f ec t iv e 0 7/ 2 0 1 7
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Criteria Inspection Method
No dirt Visual Check
and
No cracking Visual Check
Withstand Hipot Tester
Withstand Hipot Tester
Withstand Hipot Tester
Visibility of contact Visual - Close the circuit breaker and
erosion marks observe if all green marks on moving
stems are visible
Contact wipe Refer to Paragraph 6-5
indicator visible
Adequate vacuum Proceed with integrity check as
described in Paragraph 6-4
Dirt on ceramic body Visual Check
No burning or damage Visual Check
Every 1000 operations Operation counter
Smooth and correct Test closing and tripping of the
operation by control circuit breaker twice
power
Securely tied in Visual Check
proper place
Tight Visual Check
Smooth, normal Functional Test
operation
No loose or missing Visual and by feel
Parts
No dust or foreign Visual Check
matter
Smooth operation Sight, feel and per maintenance
and no excessive schedule
wear
No excessive Visual and operational
deformation or wear
Smooth operation Manual charging, closing and
tripping
0.6 inch over-travel CloSure Test (6-9.1)
Page 44
Corrective Action
Clean with lint-free cloth
or
Replace cracked piece
Clean and retest or replace
Clean and retest or replace
Clean and retest or replace
If a mark is not visible, then check if the pole unit
bushing is intact on the pole unit cup plate. If the
bushing is intact, then replace the interrupter
assembly and perform contact wipe check. If the
bushing is NOT intact, then glue back the bushing
to the cup plate and observe the mark again.
If not acceptable, perform CloSureTest (6-9.1),
replace interrupter assembly if CloSure Test is also
satisfactory.
If integrity check is not
satisfactory,replace interrupter
assembly
Clean with lint-free cloth
Replace if burned, damaged
or eroded
Replace all X-Washers per
Figure
6 - 1 B
Replace any defective device.
Identify per trouble-shooting
Chart
Repair or tie as necessary
Tighten or replace if necessary
Replace brushes or motor
Refer to Table and tighten or
6 . 1
reinstate if necessary with
appropriate tools
Clean as necessary
Refer to Figure and Paragraph 6-10
6-1
and lubricate very sparingly with
light mineral oil
Remove cause and replace parts
Correct per troubleshooting chart if
necessary
If < 0.6, contact your local Eaton Sales
and Service Center.