How to Maintain the Charging Mechanism
Functions
The charging mechanism is used to close the main contacts.
Degradation Factors
The factors which can cause degradation of the charging mechanism are the following:
-
Dusty or dirty environment
-
Shocks
-
Corrosive atmosphere
-
Idle for long periods of time
Potential Hazards
Performing regular maintenance on the charging mechanism can help to avoid the potential hazards and consequences listed in the following table.
|
Hazard |
Consequence |
|
|---|---|---|
|
Personal injury |
Equipment damage |
|
|
Charging mechanism is jammed. |
– |
Jammed mechanism |
Preventive Action
The following table lists the preventive maintenance procedures to be performed to maintain the charging mechanism.
|
Maintenance program |
Preventive action |
Procedure |
|---|---|---|
|
Basic end-user preventive maintenance |
Operate the device manually and electrically. |
Mechanism NII_1_1 |
|
Charge the device electrically with MCH gear motor. |
Mechanism NII_1_2 |
|
|
Check the complete closing of the device poles. |
Mechanism NII_1_3 |
|
|
Standard end-user preventive maintenance |
Check the MCH gear motor charging time at 0.85 Un. |
Mechanism NIII_2_1 |
|
Check the general condition of the mechanism. |
Mechanism NIII_2_2 |
|
|
Manufacturer preventive maintenance |
Check opening and closing forces. |
Contact your Schneider Electric field service representative. |
|
Clean and regrease the mechanism. |
For more information, refer to Preventive Maintenance Programs.