APC 10-40kW 208/480V Installation Guide download pdf (Page 89)

89Installation Guide Silcon DP300E 208V/480V 10-80 kVA

7OY0002 US rev. 04

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8.8 Isolation Transformer Module

Introduction.

The isolation transformer module is used in following mentioned configurations:

1. Between mains supply and UPS input, when a 3-phase Delta-service, phase

or midpoint of 2 phases grounded, is available.

2. Between mains supply and UPS input, when galvanic isolation is required.

3. Between UPS output and load, when galvanic isolation is required.

The isolation transformer is configured as Delta-WYE with accessibel neutral

(Dyn11).

Isolation For UPS System

Transformer Type

10kVA - 480V DP310E - 480V

15kVA - 480V DP315E - 480V

20kVA - 480V DP320E - 480V

30kVA - 480V DP330E - 480V

40kVA - 480V DP340E - 480V

60kVA - 480V DP360E - 480V

80kVA - 480V DP380E - 480V

10kVA - 208V DP310E - 208V

15kVA - 208V DP315E - 208V

20kVA - 208V DP320E - 208V

30kVA - 208V DP330E - 208V

40kVA - 208V DP340E - 208V

60kVA - 208V DP360E - 208V

80kVA - 208V DP380E - 208V

8.8.1 Requirement on the installation site

The isolation transformer is designed with all parts accessible from front or top, and

cable entries from bottom. The isolation transformer can be placed close to walls,

only free space for front door opening has to be ensured. Sufficient cooling has to be

ensured by a free space of min. 19.68 in./500mm above the ventilation slots in the

top cover. Avoid placing the isolation transformer in direct sunlight.

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APC 10-40kW 208/480V Installation Guide Page 89