Vertiv Tech EXS 0080kTK16FN01000, Руководство пользователя

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Vertiv | Liebert EXS 80kVA UPS | User Manual 7
Overview
1.3.1. Parallel System Features
1. The hardware and software of parallel system are completely identical to that of the single module. Parallel
system configuration can be achieved through configuration software settings.
2. Parallel cables are connected in a ring, offering system reliability and redundancy.
3. The total load of the parallel system can be queried from the LCD of each UPS.
1.3.2. Parallel System Requirements
A group of paralleled modules act as if they were one large UPS with the benefit of greater reliability. The
following requirements apply to ensure that all modules are utilised equally and that they comply with relevant
wiring rules:
1. All UPS modules must be of the same series, and connect to the same bypass source.
2. The N line of bypass and rectifier input sources must be connected to the same neutral line terminal.
3. Any RCD , if installed, must be of an appropriate setting and located upstream of the common neutral line
input terminal . Alternatively, the device must monitor the protective earth current of the system. Refer to
Warning: High earth leakage current before Table of Contents .
4. Parallel system consists of two or more UPS modules, the bypass load sharing inductors (optional) should be
selected.