Specifications
14
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
12.8 Sync Connections. There are +Sync and -Sync terminals on the terminal
block. When two or more inverters are connected in parallel these Sync
terminals must be connected together, observing the polarities.
12.9 Inverter Module Connections. If the INV2500-HS inverter module is oper-
ated or tested separately from the shelf, connections should be made to the
J1 connector with a mating connector and the pin connections given in Figure
8.
13.0 PARALLEL OPERATION
13.1 The INV2500-HS and INV5000-HS Series inverters are designed to operate
in parallel for higher output current. For the INV2500-HS, the units are auto-
matically connected in parallel in the INVR2U-HS shelf. The INV5000-HS
230VAC units have two INV2500-HS inverters connected in series in the
shelf. Two or more INV5000-HS inverters may be connected in parallel for
additional output power or for N+1 redundant operation. This is done by
connecting all inputs in parallel and all outputs in parallel (line, neutral, line),
although the DC inputs could come from two separate sources. In addition,
the sync terminals must be connected together, +Sync to + Sync and -Sync
to -Sync. The Sync terminals are used only for parallel connection of two or
more inverters. Current sharing between paralleled inverters is ±10%.
13.2 Alternatively, separate sources may be used for the inputs to these inverters
while the outputs are connected in parallel. In either case, output loads
should have individual distribution circuit breakers. The following table shows
output current and total volt-amperes for inverters connected in parallel. As
mentioned earlier, INV5000 refers to either the 230VAC INV5000-HS or two
INV2500-HS inverters in an INVR2U-HS shelf producing 115VAC.
Table 13-1. Output For Paralleled Inverters
13.3 Four INV2500-HS inverters in two INVR2U-HS shelves connected in parallel
could be used to produce 10 kilovolt-amperes of 115VAC or could also be
used as a 3+1 redundant inverter providing 7.5 kilovolt-amperes of 115VAC to
a load.
1 2.5 22
2 5.0 44
3 7.5 66
4 10.0 88
NO.OF INV2500-HS
INVERTERS
KVA
RATING
OUTPUT
AMPS
1 5.0 44 22
2 10.0 88 44
3 15.0 132 66
4 20.0 176 88
NO.OF INV5000-HS
INVERTERS
KVA
RATING
115VAC
AMPS
230VAC
AMPS