Eaton 120VCP-W25, Инструкции по установке, эксплуатации и техническому обслуживанию

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IB131006EN
Page 44
Effective 07/2017
6.3 INSPECTION AND MAINTEN ANCE PROCEDURES
No./Section Inspection Item Criteria Inspection Method Corrective Action
1.Insulation
Insulation
Integrity
Drive Insulator, Barriers,
and
Stand-off Insulators
Main Circuit to Ground
Between Main Circuit
Terminals
Control Circuit to Ground
No dirt
and
No cracking
Withstand
Withstand
Withstand
Visual Check
Visual Check
Hipot Tester
Hipot Tester
Hipot Tester
Clean with lint-free cloth
or
Replace cracked piece
Clean and retest or replace
Clean and retest or replace
Clean and retest or replace
2. Power
Elements Vacuum Interrupters
Primary Disconnects
Pole Unit X-Washers
for 150 VCP-W 63 Visibility of contact
erosion marks
Contact wipe
indicator visible
Adequate vacuum
Dirt on ceramic body
No burning or damage
Every 1000 operations Visual - Close the circuit breaker and
observe if all green marks on moving
stems are visible
Refer to Paragraph 6-5
Proceed with integrity check as
described in Paragraph 6-4
Visual Check
Visual Check
Operation counter 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
3. Control
Circuit
Parts
Closing and Tripping Device
Including Disconnects
Wiring
Terminals
Motor Smooth and correct
operation by control
power
Securely tied in
proper place
Tight
Smooth, normal
operation Test closing and tripping of the
circuit breaker twice
Visual Check
Visual Check
Functional Test Replace any defective device.
Identify per trouble-shooting
Chart
Repair or tie as necessary
Tighten or replace if necessary
Replace brushes or motor
4. Operating
Mechanism
Tightness of Hardware
Dust or Foreign Matter
Lubrication
Deformation or Excessive
Wear
Manual Operation
CloSure Test
No loose or missing
Parts
No dust or foreign
matter
Smooth operation
and no excessive
wear
No excessive
deformation or wear
Smooth operation
0.6 inch over-travel
Visual and by feel
Visual Check
Sight, feel and per maintenance
schedule
Visual and operational
Manual charging, closing and
tripping
CloSure Test (6-9.1) Refer to Table
6 . 1
and tighten or
reinstate if necessary with
appropriate tools
Clean as necessary
Refer to Figure
6-1
and Paragraph 6-10
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.
Courtesy of NationalSwitchgear.com