Sigma+ PCU
Sigma+ PCU is a solar power conditioning unit which is a single phase output, Inverter system. It works as a Bi-directional inverter which means power will be exported into the grid or power will be imported from the Grid.
Description
Sigma+ PCU
Sigma+ PCU is a solar power conditioning unit which is a single-phase output, Inverter system. It works as a Bi-directional inverter which means power will be exported into the grid or power will be imported from the Grid.
The Sigma+ PCU work in two operating conditions:
1. Stand-alone
2. Grid-Interactive
Stand-alone: Inverter operates from battery or array power source and produces AC output. Battery charged by solar (primary) & also from the grid (secondary). Since the usage of power from the grid is secondary, grid power is only used when solar power is absent or below a certain level and battery voltage level reduces up to battery low status. Working Modes: Smart, PCU & Hybrid
Grid-Interactive: Inverter operates from battery or array power source and produces AC output and also operates in parallel with the grid supply. Any excess solar power will be exported into the grid. Whenever sufficient solar power is not available to run the load, the required power is shared from the grid. The maximum power feed into the grid depends on the system rating. Battery charging automatically occurs from the grid to maintain the battery bank at its grid charging voltage. Working Modes: Grid Export Mode
Key Features
- Battery Health For Longer Life
- Extensive electronic protections
- Utilizes maximum power available from the panel
- Computer interface (Optional)
- LCD display with Energy Meter and Data Logging (optional)
Battery Health For Longer Life
The PCU feeds the battery installed to it a constant boost charging current until its voltage reaches 14.2V and the float current (which is very close to zero) then maintains this voltage above 13V. Thus reducing the float current ( flowing for the longest period during the entire process) to zero, ultimately resulting in much-enhanced battery life keeping it fully charged simultaneously.
Extensive electronic protections
There are a number of protections that the PCU ensures. It stops reverse current flow from the battery to the solar array, it provides load short circuit protection, it provides Battery/Panel reverse protection through DC fuse and Overload protection also.
Utilizes maximum power available from the panel
The PCU senses the point of maximum power available in the panel and charges the battery with this maximum power. Therefore, the battery is always charged with the maximum possible power at any given time. This is the feature that allows your device to work to its full capacity and thus deliver the best possible results.
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Computer interface (Optional)
UTL PCU comes with an additional feature of the computer interface. It is an optional feature that can be availed by users who wish to connect their product with a computer to process real-time information. This helps in availing the advanced features of the product. this feature is highly recommended to the users because the users can derive the best possible results from their products.
LCD display with Energy Meter and Data Logging (optional)
UTL PCU is also available with LCD. This is an optional feature that can be availed by the customer for the better user interface. When the customer opts for this feature, an Energy Meter and Data Logging facilities are also provided to the customer, which help the user to access information about the present and past status of the PCU functionality. In this way, the user can easily track the past records of the unit and thus he/she can have an idea about what needs to be done for better results.
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