Replacing An Mcb - Huawei FusionModule1000A20 Maintenance Manual

FusionModule1000A20 CT Solution
Maintenance Guide
Figure 5-1 Removing an ATS controller
Step 5 Connect the cables and tighten the knob.
Step 6 Reinstall the protective panel of the PDC.
Step 7 Switch on the upstream, input, and output circuit breakers of the PDC.
Step 8 Check that the new ATS controller is working properly.
Step 9 Switch on downstream circuit breakers of the PDC.
----End

5.1.2.2 Replacing an MCB

Prerequisites
A spare MCB of the same model is available and functional.
Impact on the System
None
Preparations
Tools: electroprobe, insulation gloves, flat-head screwdriver, Phillips screwdriver, multimeter
Materials: spare MCB
Issue 01 (2019-02-25)
After power-on, the Power indicator of the controller lights up.
The PDC switch must be turned off. Ensure that the power input is disconnected during replacement.
Copyright © Huawei Technologies Co., Ltd.
5 Parts Replacement
61