Appendices – APC MGE GALAXY 5000 40 130KVA User Manual

Page 57

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Appendices

A1

Electrical Characteristics

Selection of Protection Devices

UPS with common normal and bypass AC inputs

UPS unit with separate normal and bypass AC inputs

NOTE: Interrupted Transfer to Bypass Source:

If the bypass source is beyond the conditions stated below, the UPS will make an interrupted transfer (not more than 100 msec. in duration).

1.

Bypass voltage greater than +15%, -15% from the UPS rated output voltage.

2.

Bypass frequency greater than ±2 Hz from the UPS rated output frequency.

Downstream
circuit breaker
(not supplied)

Upstream
circuit breaker
(not supplied)

Upstream
circuit breaker
(not supplied)

Main
Input

Bypass
Input

Q4S

Q1

Battery CB

Inverter

Bypass

Static Switch

Output

Q3BP

Q5N

Load

PFC

Boost

Rectifier

Downstream
circuit breaker
(not supplied)

Upstream
circuit breaker
(not supplied)

Main
Input

Q4S

Q1

Battery CB

PFC

Inverter

Bypass

Static Switch

Output

Q3BP

Q5N

Normal AC
Bypass AC

Load

Rectifier

Boost

Appendices

A — 1

86-174010-00 B00

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