OVP-11f
19
6. CONNECTION
OVP-11F 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. The circuit breaker must be located in an electric service cabinet.
Protected devices are connected to the output socket of OVP-11F. The long
consumption current of devices being connected to the relay must not
exceed 2/3 of the maximum load current indicated in its 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
.
7. PREPARATION TO OPERATION
OVP-11F voltage relay has
fi
xed settings and does not need programming or
additional settings.
8. OPERATION
The voltage relay has the following operation modes:
•
normal operation;
•
protection mode;
•
turn-on delay mode.
The voltage relay is in normal operation, when the active voltage of the power
supply network is within 185-255 V limit and the turn-on delay time is over. In
this mode the protected equipment connected to the relay is de-energized,
the indicator
a
lights continuously.
If the voltage exceeds the set thresholds, the relay enters the protection mode.
In this mode the equipment connected to the relay is de-energized and one
of protection indicators starts to light:
b
when high voltage protection is
actuated or
c
when low voltage protection is actuated. The voltage relay will
be in this mode as long as the supply voltage attains a value within 190 -250 V
range.
ENG
User’s Manual
