Apc GALAXY 5000 Uživatelský manuál stáhnout pdf (Strana 20)

34001813EN/AE - Page 20

2. Installation

Parallel configuration without external bypass cabinet and with separate normal and Bypass AC

inputs (maximum two units in parallel)

The requirements for the different system earthing arrangements (SEA) are similar to those for single UPS

configurations. In the diagrams on page 18, simply replace the single UPS units between points A, B and C by the

following parallel configuration.

The UPS installation may be equipped with earth-leakage protection upstream on the condition that the protection

apply to:

- the normal and Bypass AC inputs

- all the parallel-connected UPSs.

Normal AC

Bypass AC

Normal AC

Bypass AC

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Apc GALAXY 5000 Uživatelský manuál Strana 20