Delta H2.5 - Validity; Product Description; How It Works; Additional Information

1.3 Validity
This user manual describes the installation process, maintenance, technical
data and safety instructions of the following solar inverter models under the
DELTA brand.
1.4 Product Description
This device is a single-phase grid-tie solar inverter. It converts direct current (DC)
electricity from the PV array into single phase alternating current (AC) to supply
power to the load and feed the excess generated power back to the local grid.
This inverter allows for a wide voltage input range and has a high performance
efficiency and user friendly operation. In addition, the special DSP
(Digital Signal Processor) design reduces the complexity of the circuit and
electronic components. Please note that this device does not support off-grid
function. The features for H2.5 / H3 / H3A / H4A / H5A are shown below.
1.5 How it Works
The operation of a solar inverter is shown in Figure 1-1.
In order to save energy and electricity, the solar inverter converts the DC input
power supplied from the PV Array into single-phase AC output power to Grid.
1.6 Additional Information
For more detailed information for H2.5 / H3 / H3A / H4A / H5A or other related
product information, please visit : www.deltaww.com
Features
• Power Rating: 2.5kVA (H2.5), 3kVA (H3/ H3A), 4kVA (H4A), 5kVA (H5A)
• Single–phase (L + N + PE), Grid-tie, transformerless solar inverter
• Maximum efficiency : >97.4% (>98.3% @ H5A)
• Europe efficiency : 96.8% (98.0% @ H5A)
• Reactive power capability (Cap 0.8 – Ind 0.8)
• Total harmonic distortion (THD < 3%) @ full load
Figure 1-1 : Solar system operation illustration
PV Array Electrical GridSolar Inverter
•H3A •H4A •H5A•H3•H2.5
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General Information