NOVAR 1106 / 1114 / 1206 / 1214 NOVAR 1xxx / S400 NOVAR ...

NOVAR 1xxx EPM Elektropřístroj s. r. o.
Notes:
phase measurement voltage -
line measurement voltage -
# connection # connection
1 1
2 2
3 3
4 4
5 5
6 6
It is assumed that the metering current transformer is in phase 1 and its orientation (terminals
k, l) corresponds to real orientation supply –> appliance.
The method of connection is shown as x–y where x represents the phase connected to
controller’s terminal L and y represents the phase connected to controller’s terminal N/L (0
represents the neutral wire).
If the method of connection value is entered as not specified (---- value), the automatic connection
configuration detection process is started, with exception of case when linear switching mode ( see
parameter 21) is set. In such case the process is not started and it is necessary to set the method of
connection manually.
If the type of connection (phase or line, parameter 15) is changed, the method of connection
(parameter 16) is automatically set to the unspecified value.
4.1.9.1 Setting Type of Connection Configuration if Measuring at Power Supply
Transformer’s Opposite Sides
If the measurement current signal is from the power supply transformer’s side which is opposite to
measurement voltage signal side, the transformer phase angle is conclusive for correct parameter 15
setting. This value specifies the angle between voltage vectors of corresponding phases at primary
and secondary sides. The transformer phase angle can be in the range from 0 to 11, corresponding to
phase angles from 0 to 330 degrees (in steps of thirty degrees).
Provided the measurement voltage signal is connected in accordance with the type of transformer
(that is phase measurement voltage is connected to controller with wye, or star, connection or line
measurement voltage with delta connection), it is necessary to set phase type of connection with
even transformer phase angle value and line type of connection with odd transformer phase angle
value.
If the measurement voltage signal is connected in disaccordance with the type of transformer, the
opposite rule applies: line connection with even transformer phase angle or phase connection with
odd transformer phase angle.
Determining parameter 15 explained in practical examples:
Example 1:
Compensation is to be provided for consumption supplied via a Dy1 transformer while line
measurement voltage will be taken from its primary side (D stands for delta connection) and
measurement current signal from a metering current transformer at the power supply transformer’s
secondary side (y stands for wye, or star, connection).
30