6 Commissioning
Maschinenfabrik Reinhausen 2014
46
222/08 EN
TAPCON® 240
value.
We recommend a temporary setting of 100 seconds for
delay time T1
when
commissioning the transformer. Depending on the operating conditions, you
can also specify the delay time following a longer observation period. In this
regard, it is useful to register how the actual voltage progresses and the
number of tap-change operations per day.
Checking additional functions
This section describes how you can check the following additional functions:
▪
Undervoltage blocking
▪
Overvoltage blocking
▪
Activation of desired values 2 and 3
▪
Line drop compensation
▪
Z compensation
Proceed as follows:
Checking undervoltage blocking U<
1.
Press
to select manual mode.
2.
Set undervoltage U < [%] to 85 % [
3.
Set the absolute limit values parameter to Off [
4.
Set the U< blocking parameter to On [
81].
5.
Set desired value 1 such that the measured voltage is below the under-
voltage U< [%] limit value [
Measured voltage = 100 V
Desired value 1 = Set to 120 V (greater than 100 V/0.85 = 117 V).
ð
The
Undervoltage U<
LED will light up.
ð
After around 10 seconds the
Undervoltage
message appears in the
display and the relevant signaling relay is activated.
6.
Press
to select auto mode.
ð
The device blocks and does not issue any control commands.
7.
Press
to select manual mode.
8.
Reset the operating values for
desired value 1
and
undervoltage U<
[%]
to the desired operating values.
ð
The function test for undervoltage blocking is complete.
Checking overvoltage blocking U>
1.
Press
to select manual mode.
6.3.2
Summary of Contents for tapcon 240
Page 1: ...Voltage Regulator TAPCON 240 Operating Instructions 222 08 EN ...
Page 173: ......
