Periodic Inspection - WEG VBWC Serie Instrucciones De Instalación

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10.3 PERIODIC INSPECTION

Check Item
Operation and
Equipment parts
Wiring
Closing,
tripping
device
Aux. Switch
Check Item
Main circuit
terminals
Vacuum
V.I
Interrupter
Aux. Switching
Device Indicator
Dielectric Insulations
Withstand voltage test
Operating
Characteristics
test
Check Item
Check the sectional traces of
Check the damage of arc.
Check the condition of applied grease on the
Check the sectional traces of
Contact
Check the damage of arc.
part
Check transformation or
mechanical crack of a coil.
VCB
22 | Vacuum Circuit Breaker
Check list
Check abnormal assembling
parts
Check parts to be lubricated
Check dust and foreign
material
Check whether C-Rings,
spring pins and divider
pins are wrinkled or missed
Poor connection and/or
damaged wires
Check component of
Movable parts.
Check a discoloration of coil
Check links and contacts
Check list
Check all connections
Check the corrosion, inspection
discoloration
Check the vacuum density
Check the normal operation
Main circuit: Over 500MΩ
Control circuit: Over 2MΩ
Main circuit: 1.5 x R.Voltage
for 10 min.
Testing for trip/close
Testing for trip-free
Check the minimum of
operating voltage
Check list
heat or discoloration.
contactor surface.
heat or discoloration.
Check the sectional traces of
heat or discoloration. Check
the damage of arc. Check the
amount of eccentricity
between terminals.
Method
Verify a smooth Clean and grease
operation by
visual or manual Replace if necessary
Retighten any loose
Visual
Replace if necessary
Method
Check the torque,
Visual
necessary
Vacuum Interrupter
Testing method. Replace V.I.
Check if necessary
the withstand test
Check fixed bolts.
Visual
necessary
Clean it after
1000 V Megger
finding the cause.
500 V Megger
Replace if necessary
Test and check
Clean and replace
with a withstand
if necessary
voltage tester
Perform the Inspect and repair
electrical testing if finding a matter.
after a manual
operation test necessary.
Method
Visual Apply grease on
(Use a microscope contact surface.
if necessary) *Specification:
HITALUBE280G
Visual
(Use a microscope
if necessary)
Visual
(Use a microscope Apply grease on
if necessary) contact part
*Specification:
Tightening force HITALUBE280G
Solução
Every
periodic
inspection,
Every 5000
operations
Every
parts
periodic
inspection
Solução Frequency
Every periodic
Replace if
inspection
Every periodic
inspection,
Every 5000
operations
Replace if
Every a periodic
inspection
Every periodic
inspection, every
5000 operations
Every periodic
inspection,
Replace if
Every 6 years
Solução Frequency
Replace.
Every periodic
inspection,
Annually
Every periodic
inspection,
Replace.
Annually
Replace.
Every periodic
inspection,
Annually