Task | Description | Duration |
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1 | Mechanism - Check the MCH gear motor charging time at 0.85 Un | 5 minutes |
2 | Mechanism - Check the general condition of the mechanism | 5 minutes |
3 | Mechanism - Check the number of device operating cycles | 5 minutes |
4 | Breaking unit (arc chutes + contacts) - Check the condition of the breaking unit | 5 minutes |
5 | Breaking unit (arc chutes + contacts) - Check mounting of arc chutes and filter cleanliness | 5 minutes |
6 | Auxiliaries - Check operation of indication contacts (OF, PF) | 5 minutes |
7 | Auxiliaries - Check closing operation with XF closing voltage release at 0.85 Un | 5 minutes |
8 | Auxiliaries - Check opening operation with MX opening voltage release at 0.70 Un | 5 minutes |
9 | Auxiliaries - Check closing and opening operations with MN undervoltage release | 5 minutes |
10 | Auxiliaries - Check time delay of MNR delayed undervoltage release | 5 minutes |
11 | Control unit - Check microswitches OF/SDE/PF/CH | 5 minutes |
12 | Control unit - Check M2C programmable contacts | 5 minutes |
13 | Control unit - Save protection settings, reports, and event logs with EcoStruxure Power Commission software | 5 minutes |
14 | Control unit - Check overcurrent protection | 5 minutes |
15 | Chassis - Check operation of CD, CT, CE position contacts and EF auxiliary contacts | 5 minutes |
16 | Chassis - Check operation of safety shutters | 5 minutes |
17 | Chassis - Clean chassis and check presence of grease on chassis | 5 minutes |
18 | Chassis - Check disconnecting contact clusters | 5 minutes |
19 | Power connections - Check connection system | 5 minutes |