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expected at a nominal value, gives the load an overload current
for a short time (multiplies of 2), then goes back to self-test
mode, then repeats the attempt to supply the load (the load, for
example, is a powerful motor, and it did not have time to start
the first time) and upon successful start (current is not above
standard, voltage is standard) it starts the operation, which is
indicated by the text on the indicator, switches to the default
screen display mode: on the left input voltage and input current
are displayed, on the right there are the value of the output volt-
age and output current, at the top center – the load percentage,
at the bottom center - the current power output. The percentage
of load can increase, at the same amount of power, if the input
voltage has changed.
QUANT regulators guarantee power output not less, than the
grid itself can deliver at a given input voltage (P=I*U).
The regulator consists of two main separated functional parts,
combined in one housing, and always operating together:
• the actual regulator, its input and output filters, reactive pow-
er compensator - for normal operation mode, which includes
any surges and spikes in voltage within the acceptable regu-
lation range of the device;
• overvoltage protection module, continuous and pulsed, to
reliably protect the load and the regulator unit against dan-
gerous overvoltages (for example, in case of a phase inter-
ruption or phase to ground fault) or pulsed overvoltages,
contains, among other things, a unique, wear-free switching
overvoltage protection, which is designed, in contrast to tra-
ditional "SPD", for the entire life of the regulator and is able
to cope with hundreds and thousands of daily switching of a
powerful load in the input grid of the regulator (for example,
if there is a shop with powerful machines, transformer weld-
ing machines, etc.) which create pulse overvoltages in a grid.
The protection module copes with switching overvoltage im-
pulses in long overhead lines with high inductance, easily sup-
pressing overvoltage impulses with an amplitude of 4 kV and
more, with a pulse current up to 250A and duration of more than
30 ms, which exceeds the requirements of GOST for the quality
of electricity in terms of switching.
QUANT-7
Automatic voltage regulator, one-phase
