APC 40 130KVA user manual Ups

MGE Galaxy 5000

2.4Redundant Parallel Configuration (Maximum Two UPS Units for Pn)

These configurations do not have an external System Bypass Cabinet (SBC).

Figure 2-5: Parallel UPS With Common Normal and Bypass AC Inputs

UPS 1 UPS 2

14.56” 22 14.56” 22

Ground

To loadTo Load	To Normal / Bypass
	AC Source

To access the connections, remove cover (see Section 1.3).

1 - The grounding conductors must be connected to the grounding-plate of each UPS (17).

2 - Connect the three phases of the bypass AC source to connection (15) in each UPS.

3 - Connect the three phases of the supplied loads to connection (14) in UPS1.

4 - Connect (14) in UPS2 to (14) in UPS1 using the three load conductors.

5 - Connect the external battery (+/-) to connections (22) in UPS1 and UPS2.

6 - Tie the cables down to the cabinet frames. 7 - Put the covers back in place.

Figure 2-6: Parallel UPS With Separate Normal and Bypass AC Inputs

UPS 1

22

14.56”

UPS 2

22

14.56”

To access the connections, remove cover (see Section 1.3).

1 - The grounding conductors must be connected to the grounding-plate of each UPS (17).

2 - Connect the three phases of the normal AC source to connection (16) in each UPS.

3 - Connect the three phases of the bypass AC source to connection (15) in each UPS unit.

4 - Connect the three phases of the supplied loads to connection (14) in UPS1.

5 - Connect (14) in UPS2 to (14) in UPS1 using the three load conductors.

Ground

To Load	To Normal	To Bypass
	AC Source	AC Source

6 - Connect the external battery (+/-) to connections (22) in UPS1 and UPS2.

7 - Tie the cables down to the cabinet frames. 8 - Put the covers back in place.

CAUTION If the two UPSs are placed side by side, connect as indicated above. In the other configurations, always make sure that the cables between the UPSs and bypass AC source have the same cross-section and the same length. The same is true for the cables between the UPSs and the load.

2 — 4 Setup and Installation 86-174010-00 B00