10
4. Scope of delivery
The delivery scope includes:
• voltage regulator – 1 pcs.
• mounting bar (installed, removable) - 1 pcs.
• regulator operational manual – 1 pcs.
• individual transport packaging – 1
5. Device and principle of operation
The regulator uses the principle of double voltage conversion
with the ability to return it to the grid, for example, when operat-
ing with solar power plants.
The power section uses RF-PDM assembled on 5th generation
IGBT fast switches, uses DSP-algorithms of the second gen-
eration of inverter reversible regulators, implemented on two
STM32 processors and has specially designed for this line of
regulators electromagnetic elements for energy conversion and
filtering of the output voltage and interference coming from the
grid.
The input voltage from the grid is fed through the input circuit
breaker to the input of the regulator circuit, initially supplies a
low-power auxiliary power supply and the motherboard, and in-
dicator circuit. The regulator starts a countdown of 6 seconds
before the voltage is delivered to the load, and during this time
it:
• goes through several cycles of full self-testing and factory
calibration checks;
• checks the input voltage, whether it is within acceptable lim-
its, whether it has the correct frequency with the desired dis-
placement from the nominal value, etc .;
• checks if the user holds down the control button to enter the
settings when the regulator is switching on;
• displays the most recent cause of the previous shutdown.
And after that it tries to deliver voltage to the load. If there is a
short circuit in the load or the load draws more current than it is
QUANT-7
Automatic voltage regulator, one-phase
