Inspection And Maintenance Cycles; Failures And Diagnoses - WEG ABW06D Manual De Instrucciones

open Circuit Breaker

6. InSpeCtIon AnD MAIntenAnCe CyCleS

Service
environment
Conditions
Clean and dry
air
Sheltered
installation
Normal
with little
dust, without
presence of
corrosive
gases
Saline
environments,
with high
temperatures
and/or with
presence
of corrosive
gases
Special
Environments
with high
presence
of toxic or
corrosive
gases

7. FAIlureS AnD DIAgnoSeS

Defect
The circuit breaker
interrupts a shortage,
but the mechanical
reset button does not
go out.
46 | ABW
typical examples
Electrical rooms,
with air filters and
air-conditioning
Distribution panels
or electrical rooms
without air filters or
air-conditioning
Thermoelectric
power plants,
sewage treatment
plants, steel mills,
paper/cellulose
plants, etc.
Distribution panels
or electrical rooms
without air filters or
air-conditioning.
probable Cause
1. There is no control
voltage or the
undervoltage coil is
damaged.
2. Variation of control
voltage.
English
Inspection
Cycle
Every 2
years
Yearly
Every 6
months
Corrective Actions
1. Check control voltage.
2. Check control voltage.
estimated
useful life
Approx. 10
years
Approx. 7
years
Approx. 5
years