8.5 Capacity Expansion Settings
Prerequisites
The PDC is
congured with output modules that have hot-swap bases.
● Install MCBs using the MCB extracting kit. Do not install MCBs barehanded.
● Before installing an MCB, verify that it is switched to OFF.
● Obtain the MCB extracting kit from the
le box on the PDC front door.
Capacity Expansion Principles
The capacity expansion principles vary slightly for single- and dual-input scenarios.
● In the single-input scenario, install MCBs for output modules from top down
and from left to right. Install MCBs fully for one output module before
installing MCBs for the next output module.
● In the dual-input scenario, install MCBs for added output modules from top
down. Verify that the MCBs on the left and right sides are the same in
number and capacity.
● 1P and 3P MCBs can be mixed up for capacity expansion, but must be installed
contiguously without jumping any slot.
● 2P MCBs cannot be used for capacity expansion. The MCB capacity cannot
exceed 63 A.
Preparations
Tools: MCB extracting kit, Phillips screwdriver
Materials: MCB, MCB copper bar
Skill requirement: power distribution engineer
Procedure
Step 1 Remove the front panel of the output module to be expanded.
Step 2 Switch the MCBs to be installed to OFF, and install MCB copper bars at both ends.
PDU8000 Modular Precision PDC V2.0
User Manual 8 Maintenance Guide
Issue 04 (2021-04-13) Copyright © Huawei Technologies Co., Ltd. 136
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