Example How To Connect Single-Phase Ct To The Ied - ABB Relion REC670 Applications Manual

Bay control version 2.1 iec
Hide thumbs Also See for Relion REC670:
Table of Contents

Advertisement

Section 4
Analog inputs
Another alternative is to have the delta connected CT set as shown in figure 17:
L1
L2
Protected Object
IEC11000028 V3 EN-US
Figure 17:
Delta DAC connected three-phase CT set
In this case, everything is done in a similar way as in the above described example, except that
for all used current inputs on the TRM the following setting parameters shall be entered:
CT
=800A
prim
CT
=1A
sec
CTStarPoint =ToObject
ConnectionType = Ph-Ph
It is important to notice the references in SMAI. As inputs at
L2L3 respectively L3L1 we need to tilt 180º by setting
4.2.2.7

Example how to connect single-phase CT to the IED

Figure
18
of the required actions by the user in order to make this measurement available to the built-in
protection and control functions within the IED as well.
64
L3
IL1-IL3
IL2-IL1
IL3-IL2
gives an example how to connect the single-phase CT to the IED. It gives an overview
For correct terminal designations, see the connection diagrams valid for the
delivered IED.
IED
2
1
3
ToObject .
1MRK 511 358-UEN A
4
SMAI2
BLOCK
AI3P
REVROT
AI1
^GRP2L1
AI2
^GRP2L2
AI3
^GRP2L3
AI4
^GRP2N
AIN
IEC11000028-3-en.vsdx
Ph-Ph are expected to be L1L2,
Application manual
SEMOD55055-431 v7

Hide quick links:

Advertisement

Table of Contents
loading

This manual is also suitable for:

Relion 670 series

Table of Contents