MR TAPCON 230 basic User Manual

7 Functions and settings
84 TAPCON® 230 basic 2117246/02 EN © Maschinenfabrik Reinhausen 2012
7.3.7 Bandwidth
The bandwidth is the permitted deviation of the measured voltage (V
Actual
) from
the selected desired value. If the measured voltage is inside the bandwidth,
then no control commands are issued to the on-load tap-changer.
If the measured voltage deviates from the specified bandwidth, a tap-change
command occurs after the set delay time T1. The on-load tap-changer carries
out a tap-change in a positive or negative direction.
If the level is persistently above or below the bandwidth, the Function monitor-
ing alarm message is triggered after 15 minutes. The corresponding relay is
also activated. The alarm message is only reset when the measured voltage
returns to the set bandwidth.
Figure 27 Measured voltage over time
1 ΔV
Step
: Step voltage
2 V
Desired
: Desired value in V
3 B%: Bandwidth range
4 T1: Set delay time
5 V
Actual
: Measured voltage
a V
Actual
outside the bandwidth, T1 starts
b V
Actual
within bandwidth before T1 lapses, no tap-change operation
c V
Actual
outside the bandwidth, T1 starts
d V
Actual
outside B% before T1 lapses, tap-change operation initiated
e Tap-change operation complete, V
Actual
within the bandwidth

MR TAPCON 230 basic Specifications

General

Brand	MR
Model	TAPCON 230 basic
Category	Controller
Language	English