|
21
June 2020
|
Solar Stik
®
, Inc.
SYSTEM SETUP AND OPERATION GUDIE FOR THE 1 kW HYBRID POWER SYSTEM (HPS)
PRELIMINARY DRAFT
Derating
Derating is a condition where the power ratings for both inverter and charger functions are
diminished. This occurs when the internal components of the PRO-Verter operate in extremely high
temperatures, usually caused by poor airflow over the transformer or MOSFETS or solar loading in
high-heat environments.
To protect against over temperature shut down when operating in higher ambient temperatures, the
set value of “BULK CURRENT” is automatically reduced as follows based on temperature sensed at
the Power Transformer and at the Heat Sink for the Power FET board.
• Power Transformer Temperature > 130°C: Reduce by 0.2% every 20 sec
• Heat Sink Temperature is > 90 °C: Reduce by 0.2% every 20 sec
If the system is not operating at rated power, be sure to check the PRO-Verter air filters and/or shade
the case from direct sunlight if operating outdoors.
• Inverter derating will cause the generator to start frequently, transferring support of the load
to the generator to allow the inverter to cool down. “Overtemp Fault” may appear on the User
Interface.
• Charger derating will temporarily reduce the charging current to the ESMs to allow the charger to
cool down.
Historical Data and Fault Tracking
The PRO-Verter tracks and provides data in both real-time and historical format for both the AC and
DC circuits, which will aid in troubleshooting issues or verifying system performance.
The PRO-Verter logs operating data and tracks faults on an SD card (optional) inserted into the User
Interface. Information regarding these functions are found in the
PRO-Verter S 2000 Data Logging
section of this Manual. Data Log files may be viewed using Excel or similar program.
Circuit Limitations
When the PRO-Verter is selected for duty in an application, it must be configured to work properly
and safely between the load and any AC power source that is connected to it (generator or grid-
utility). The PRO-Verter manages and distributes AC power IN and OUT through a network of cables
and connections. A series of circuit breakers protect the PRO-Verter, as well as the connected loads
or generator, from overloading.
If circuit breakers on the AC INPUT or AC OUTPUT are tripping, it is likely that the load has
exceeded the available current of the PRO-Verter and/or the generator.
Dead-battery System Recovery Circuits
There are two (2) recovery circuits to revive a System if the System batteries become overdischarged
to a “critical-low” level, to the point that the System may cease to function. The first option
utilizes an AC power source and the second, PV power. See the I-Plate and this Manual for more
information.
