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

7. 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
Special
gases
Environments
with high
presence
of toxic or
corrosive
gases

8. FAIlureS AnD DIAgnoSeS

Defect
The circuit breaker interrupts a
shortage, but the mechanical
reset button does not go out.
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.
www.weg.net
Inspection estimated
cycle useful life
Every 2 years Approx. 10 years
Yearly Approx. 7 years
Every 6 months Approx. 5 years
Corrective actions
1. Check control voltage.
2. Check control voltage.
ABW - Air Circuit Breaker 47