Product Description; Features; Application& Usage - Delta RPI-M8 Manual

1.4 Product Description

The "RPI-M8/ M10/ M12/ M15/ M15A/ M20/ M20A/ M30" is a 3 phase grid-tied
solar inverter. This device converts direct current (DC) electricity from
photovoltaic power collected from PV Array into 3 phase alternating current (AC)
to feed the excess capacity back to the local mains electrical grid. Using of
cutting-edge technology allows wide voltage input range (200~1000V) and high
performance efficiency based on user friendly operation design. In addition,
special DSP (Digital Signal Processor) design decreases the circuit complication
and electronic component. Please note that this device does not support off-grid
function. The following are the features of RPI-M8/ M10/ M12/ M15/ M15A/ M20/
M20A/ M30.

1.5 Features

 Power Rating：8/ 10/ 12/ 15/ 20/ 30 kVA
 3Phase, Grid-tie, Transformerless solar inverter
 Maximum efficiency：> 98 %
 Europe efficiency: >97.5%
 Reactive power capability (Cap 0.8 – Ind 0.8)
 Low output current harmonic distortion (THD < 3%) @ full load
 2 MPP Trackers
 Record up to 30 event logs.
 5" LCD display
1.6 Application& Usage
The operation of solar inverter is shown as the figure 1-1. In order to save energy
and electricity, solar inverter convert the DC input power supplied from the PV
Array into three-phase AC output power to Grid.
PV Array
DC Distribution
box
Surge arrestor
Fuse
DC switch
Figure 1-1 Solar inverter system operation illustration
Solar Inverter
3PH
3 phase, N, PE
E-Today: 47kWh
21. Jun 2010 13:50
Runtime: 8.2Hrs Power: 12103W
On Grid, Derating, cosφ – Ind 0.9
20
15
10
5
0 4 8 12 16 20 24
Electrical Grid
AC Distribution
box
Surge arrestor
AC breaker
7