General Description; Standard Products; System Configurations. (N+1 = Added Redundancy); Inverter System Characteristics - MGE UPS Systems 3.5 to 21 kVA N+1 Owner's Manual

3.5 to 21 kVA N+1 Inverter
1.1

General Description

This static, modular inverter system series provide stable, distortion-free AC power from a DC input source at a
selectable output voltage and frequency prior to shipment, for sensitive equipment. With a built-in static transfer
switch, the inverter also forms a reliable and economical part of uninterruptible power supply systems in either on-
line or off-line mode. This series employed modular design to provide N+1 redundancy, and twin controller cards
to double reliability. There are three distinctive parts in these tower inverter systems. The top part is a built-in mod-
ule that houses the twin controller, alarm cards, LCD unit, and LED indicators. The center part is a built-in module
that houses a static transfer switch, and where input and output connectors are located. It is easily recognized by
a twin fan front panel. Above and below this static switch module are individual inverter modules rated 3.5 kVA/3kW
each (those with single fan front panel).
S4 inverters are available in three receiver cabinet configurations housing 1 to 6 inverters, a static transfer switch
console, and redundant microcontroller modules.
Figure 1-1: System Configurations. (N+1 = added redundancy).
DC INPUT
!
WARNING!
OPEN BREAKER BEFORE
REMOVING MODULE
DC INPUT
!
WARNING!
OPEN BREAKER BEFORE
REMOVING MODULE
7 kVA/3.5 kVA N+1
1.2

Standard Products

Consult table 1-1 below for the system(s) you are working on.
Table 1-1: Inverter System Characteristics.
Part Power
Number rating
(kVA)
64074/H 7
64144/H 14
64214/H 21
page 1 — 2
OPEN BREAKER BEFORE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
OPEN BREAKER BEFORE
OPEN BREAKER BEFORE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
14 kVA/10.5 kVA N+1
Nominal Input
Input Voltage
Voltage Range
(VDC) (VDC)
(-48) (-40 to -60)
(-48) (-40 to -60)
(-48) (-40 to -60)
DC INPUT
!
WARNING!
REMOVING MODULE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
DC INPUT
!
WARNING!
OPEN BREAKER BEFORE
REMOVING MODULE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
DC INPUT
!
WARNING!
REMOVING MODULE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
DC INPUT
!
WARNING!
REMOVING MODULE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
Maximum Maximum Output
Input Current Amperes at selectable
@ -40VDC output voltage of:
(Amperes) 120
176 58
353 116
529 174
Introduction
DC INPUT
!
WARNING!
OPEN BREAKER BEFORE
REMOVING MODULE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
DC INPUT
!
WARNING!
OPEN BREAKER BEFORE
REMOVING MODULE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
DC INPUT
!
WARNING!
OPEN BREAKER BEFORE
REMOVING MODULE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
DC INPUT
!
WARNING!
OPEN BREAKER BEFORE
REMOVING MODULE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
DC INPUT
!
WARNING!
OPEN BREAKER BEFORE
REMOVING MODULE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
DC INPUT
!
WARNING!
OPEN BREAKER BEFORE
REMOVING MODULE
POWER MODULE
GREEN = NORMAL
YELLOW = WARNING
RED = FAULT
STATUS TEMPERATURE
21 kVA/17.5 kVA N+1
Selectable
Output
Frequency
208-240 Hz
29 50 or 60
58 50 or 60
87 50 or 60