APC MGETM GALAXYTM 6000 User Manual download pdf (Page 15)

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Example of an installation comprising three modular UPSs with an external maintenance bypass (from 250 to 500 kVA)

Fig. 15

mains 1

earth

static

switch

inverter 1

rectifier

charger

Q4S

modular UPS cubicle 2

QF1

Q1 Q5N

Q4S

modular UPS cubicle 1

QF1

Q1 Q5N

Q4S

modular UPS cubicle 3

QF1

Q1 Q5N

Q3BP

Q5N

External maintenance bypass cubicle

External

maintenance

bypass line

mains 1

earth

static

switch

inverter 2

rectifier

charger

mains 1

earth

static

switch

inverter 3

rectifier

charger

load

mains 2

battery cubicle

beside rectifier-

inverter cubicle 1

other battery

cubicles (if

applicable)

earth

frames interconnection for earthing

mains 2

battery cubicle

beside rectifier-

inverter cubicle 2

other battery

cubicles (if

applicable)

earth

frames interconnection for earthing

mains 2

battery cubicle

beside rectifier-

inverter cubicle 3

other battery

cubicles (if

applicable)

earth

frames interconnection for earthing

Important. The power cables between

each UPS and the upstream

protection devices must be the same

length. The same holds for the power

cables between each UPS cubicle and

the external maintenance bypass.

Installation (cont.)

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 45 46

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APC MGETM GALAXYTM 6000 User Manual Page 15

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