6. CONNECTION
OVP-17P voltage relay is connected to a standard socket of 220 V / 50 Hz
power supply network. The socket must be rated at the current 16 A. The
power supply line of the socket must be protected by an automatic circuit
breaker with current not more than 16 A to protect against short circuit and
overload. Protected devices are connected to the output socket of the
voltage relay. The long consumption current of devices being connected to
the relay must not exceed 2/3 of the maximum load current indicated in their
speci
fi
cation.
The voltage relay is designed for operation indoor only. The device operation
is inadmissible in places with high humidity and where ingress of liquid on its
case is possible. Ambient temperature during the voltage relay operation must
be in the range +10 to +35 °
С
.
Before connecting equipment to the voltage relay it is necessary to set
actuation values, namely, high voltage switching o
ff
threshold (U
H
), low
voltage switching o
ff
threshold (U
L
) and turn-on delay time after voltage
normalization of the power supply network (t
d
) (see p. 7). It is recommended
to set these values in accordance with operation manuals of connected
equipment. As a rule, household appliances can operate safely at 10 %
supply voltage deviation, i.e. in the range 198-242 V. The turn-on delay time
value after allowable voltage renewal is selected depending on the type of
connected electrical appliances. For refrigerators, air-conditioners and other
compressor devices the delay value should be not less than 3 minutes.
7. PARAMETER SETTINGS
•
Connect the voltage relay to a 220 V socket to set protection parameters.
The display shows its model name for a short time and the zero time
reference will start to switch on the relay output.
23
OVP-17p
ENG
User’s Manual
