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NOVATEK-ELECTRO
PEF-320
This operation manual is intended for description, principle of work, construction, mode of work and
maintenance of the Universal automatic electronicphase switch PEF-320 (further in text as PEF-320 or
the device).
PEF-320 meets the requirements of
:
EN 60947-1;
EN 60947-6-2;
EN 55011;
IEC 61000-4-2.
Harmful substances in concentration more than allowed are absent.
Terms and abbreviations:
AR
is automatic reclosing;
OUTPUT
is terminals for load connection, also LED indicators showing the phase connected to load
(L1,
L2, L3)
The term "
Normal voltage
" means that the voltage value does not exceed the threshold limit values set by the
User.
1. DESCRIPTION AND OPERATION
1.1. Application
The PEF-320 universal automatic electronic phase switch is designed to supply an industrial and domestic
single phase 230 V, 50 Hz load from three-phase four-wire mains 3
х400+N in order to maintain uninterrupted
power supply of essential single-phase loads and protect them against unallowable voltage variations in the
mains.
According to the voltage presence and voltage quality on the phases, the PEF-320 will automatically select
the optimum phase in limits range set by user and switch the single phase load supply to this phase.
It is possible to connect to one of the phases of the electric generator, inverter.
The maximum and minimum voltage limits are set by user.
1.2. Controls, overall and mounting dimensions of PEF-320
Controls, overall and mounting dimensions of PEF-320
are shown in Fig. 1.
1
– terminals for power
supply;
2
– knob for threshold trip
setting for maximum voltage
(Umax);
3
– knob for threshold trip
setting for minimum voltage
(Umin);
4
– knob for automatic
reclosing time setting (Тon);
5
– load terminals;
6
– knob for time setting of
return to the priority phase
(Тr);
7
– alarm LED indicator
(ALARM);
8
– LED indicators of phases
(L1, L2, L3).
Fig. 1
–
Controls, overall and mounting dimensions of PEF-320
1.3. Operation conditions
The device is intended for operation in the following conditions:
–
Ambient temperature: from minus 35 to +55
°С;
–
Atmospheric pressure: from 84 to 106.7 kPa;
–
Relative humidity (at temperature of +25
°С): 30 … 80 %.
