Inspection And Troubleshooting; Inspection And Maintenance Cycle; Troubleshooting Guide - WEG ABWC Serie Instrucciones De Instalación, Operación Y Mantenimiento

14 INSPECTION AND TROUBLESHOOTING

14.1 INSPECTION AND MAINTENANCE CYCLE

The purpose of the inspection of the ABW Compact is to prevent accidents in advance and to maintain its
performance by changing consumable and deteriorated parts in a timely manner. Make sure that the guide specifies
the inspection method and cycles before using the equipment.
Use
Environments
condition
Clean and dry air location
Normal
environment
Place covered with little dust
Location without corrosive gases
Place with salinity, high
temperature gases such as sulfur
dioxide and hydrogen sulfide
Special
environment
Locations with harmful or
corrosive gases where human
beings cannot
stay for a long time
*Grease operating parts every maintenance cycle

14.2 TROUBLESHOOTING GUIDE

Defect types
The circuit breaker is opens,
but the Fault Trip Reset key will
not come out
The circuit breaker opens
simultaneously with the
closing operation, and
the Fault Trip Reset key is
released.
Opening is done manually, but
not remotely
Opening will not work
manually.
The circuit breaker will not
close either manually or
remotely.
Specific examples
Clean electrical rooms
with air conditioning
Distribution panel or individual
electrical room without air filter
and air conditioning
Thermoelectric plants, sewage
treatment plants,
steel plants, pulp and
paper plants, etc.
Chemical plants, quarries,
mining areas, etc.
Table 14.1: Maintenance cycle in the use condition
Cause
1. Voltage is not present or the undervoltage
release is damaged
2. Voltage disturbance has occurred in the trip device
1. In a short circuit state
2. Excessive current in the closing operation
1. The voltage supply of the trip device is too low
V<0,7Vn
2. Undervoltage circuit failure
1. Damaged mechanism
2. Deposition on the main circuit
1. Closing operation in short circuit
2. The Fault Trip Reset key will not reset
3. Instability in the product insertion/extraction
4. Antipumping function
5. The circuit breaker closing spring is not loaded
6. Problem in the shunt closing release power supply
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Inspection cycle
Once every 2 years
when operating more than 70
times after the installation in
the use environment
Once a year
when operating more than 70
times after the installation in
the use environment
Every 6 months
Countermeasure
1. Check the voltage. Replace the damaged
undervoltage release
2. Check the voltage supply
1. Remove the cause; check the circuit breaker state
before closing it again
2. Review the network or change trip device
configuration
1. Check the voltage source. (0,7~1,1Vn)
2. Replace the undervoltage release
1. Contact the service center
2. Contact the service center
1. Remove the cause; check the circuit breaker state
2.Readjust the Fault Trip Reset key
2. Readjust the Fault Trip Reset key
4.Repeat the operation after removing the power from
the shunt closing release
5. Check the loading motor power supply. Check that
manual loading
is working. Contact the After Sales service or
replace the charging motor if necessary
6. Remove the shunt closing release power supply.
Power again after checking the
availability to close the circuit breaker. Contact
the service center if manual loading is not available
ABWC Compact Air Circuit Breaker | 55
Replacement
cycle
Approx. 10
years
Approx. 7
years
Approx. 5
years