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2. INTRODUCTION
2.1 PRODUCT DESCRIPTION
Smart Storage Solar Inverters (referred to as SSSI henceforth) are also known as HBD-NG range inverters.
These machines are mechanically and electrically robust with a wide operating temperature range and hence,
suitable for operation in harsh environments. These machines are a perfect fit for low maintenance, off-grid/
hybrid installations of industrial and residential nature both.
A typical block diagram is shown below in Figure 1 involving the integration of SOLAR, GRID, BATTERY and
GENSETS with the site loads. Inbuilt intelligence manages all the sources selectively to provide seamless power
to the loads so as incur minimum bills with optimum utilization. These HBD-NG range of inverters are available in
both 1-phase and 3-phase versions under the series name of MONO-POWER and TRI-POWER respectively.
MONO-POWER series has single-phase systems ranging from 1kVA to 50 kVA with same rating of MPPT charge
controller in different battery voltage ranges.
Similarly, TRI-POWER series has 3-Phase inverters ranging from 10 kVA to 250 kVA in different battery voltage
with same rating of MPPT charge controller. Kindly visit www.energiaa.in to know more about our products
range. Custom-built ratings of inverters are also available on request and can be designed as per user
requirement.
The SSSI can be broken down into 2 Parts – MPPT-based Solar Charge Controller and Bi-Directional Inverter.
Both parts are explained in detail in the subsequent sections of this manual. On the DC side, dedicated terminals
have been provided for PV and battery connections. Number of MPPT charge controllers depends on the rating of
the system. Similarly, on the AC side dedicated terminals have been provided for connecting grid (EB or Mains)
supply and the loads. All 4 terminations (2 on DC side and 2 on AC side) have isolators/ MCCBs for ease of
operation and maintenance. All the loads connected at the load terminals will have seamless power with less
than 5msec interruption time (in case of mode switching). Please be noted that either Grid supply or DG supply
can be connected to the unit on AC side. Any kind of Mains/ DG changeover has to be made before the unit
installation and is not in the scope of the PCU.
The sequence of power from Solar PV, Grid, DG and Battery depends on the mode of operation and has been
discussed in detail later in this document. We will now discuss the key organs that comprise this HBD-NG range of
Smart Storage Solar Inverters.
Figure 1
