Galaxy PW™ UPS 100 to 225kVA

3.3Power-Circuit Wiring Diagrams

The single UPS wire diagram is for typical UPS installations shown in Figure 3-1. The heavy lines represent the cables that must be connected (F), refer to section 3.5 ‘Connections Between Cabinets’ for more detail on cables.

Figure 3-1: Galaxy PW™ Single UPS Unit Wire Diagram.

 

D

QF1 + –

+ –

 

 

E

 

 

F

F

 

 

 

1

Q1

B

Q5N

 

A

( )

2

( ) Q4S

C

 

 

 

 

Q3BP

 

Galaxy PW

 

 

3.4Hot Swap Options

Legend:

1:Normal AC source,

2:Bypass AC source,

A:Rectifier/charger module,

B:Inverter module,

C:Static-bypass module,

D:Battery cabinet next to the Galaxy PW™ UPS cabinet,

E:Additional battery cabinets,

F:The equipotential-bonding connection between cabinets.

The external bypass may be used to construct a bypass outside the UPS, thus making it possible to shutdown the UPS for maintenance purposes.

The option may be used for single UPS units and redundant parallel UPS. For the power-circuit connections of a single UPS unit see Figure 3-2, for the power-circuit connections of parallel UPS see Figure 3-3.

Power cables for UPS-to-bypass connections are not supplied.

Figure 3-2: Single UPS Unit Power Circuit Connections.

 

 

 

 

 

Q3BP

 

 

Legend:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1: Normal AC source.

 

 

 

 

D

QF1 + –

+ –

 

2: Bypass AC source.

 

 

 

 

 

E

 

A: Rectifier/charger module.

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

B: Inverter module.

 

 

 

 

 

 

 

 

 

 

1

Q1 A

B

Q5N ( )

Q5N ( )

C: Static-bypass module.

2

Q4S

2

( )

Q4S

C

 

 

D: Battery cabinet next to the

(

)

 

 

 

 

Galaxy PW™ UPS cabinet.

 

 

 

 

 

 

Q3BP

 

 

 

 

 

 

 

 

 

 

 

 

Galaxy PW

 

 

 

E: Additional battery cabinets.

 

 

 

 

 

 

 

 

F: The equipotential-bonding

connection between cabinets.

3 — 2

Installation

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