Analog Inputs; Introduction; Setting Guidelines; Setting Of The Phase Reference Channel - ABB RELION 670 Series Applications Manual

1MRK 504 152-UEN B
Section 4
4.1

Introduction

Analog input channels must be configured and set properly in order to get correct
measurement results and correct protection operations. For power measuring and all
directional and differential functions the directions of the input currents must be defined in
order to reflect the way the current transformers are installed/connected in the field ( primary
and secondary connections ). Measuring and protection algorithms in the IED use primary
system quantities. Setting values are in primary quantities as well and it is important to set
the data about the connected current and voltage transformers properly.
A reference
channels phase angle will always be fixed to zero degrees and all other angle information will
be shown in relation to this analog input. During testing and commissioning of the IED the
reference channel can be changed to facilitate testing and service values reading.
4.2

Setting guidelines

4.2.1

Setting of the phase reference channel

All phase angles are calculated in relation to a defined reference. An appropriate analog input
channel is selected and used as phase reference. The parameter
analog channel that is used as phase angle reference.
Application manual

Analog inputs

PhaseAngleRef can be defined to facilitate service values reading. This analog
The IED has the ability to receive analog values from primary equipment, that
are sampled by Merging units (MU) connected to a process bus, via the IEC
61850-9-2 LE protocol.
The availability of VT inputs depends on the ordered transformer input module
(TRM) type.
The available setting parameters related to analog inputs are depending on the
actual hardware (TRM) and the logic configuration made in PCM600.
If a second TRM is used, at least one TRM channel must be configured to get
the service values. However, the MU physical channel must be configured to get
service values from that channel.
Analog inputs
SEMOD55003-5 v10
SEMOD55068-1 v1
SEMOD130348-4 v5
SEMOD55055-5 v3
PhaseAngleRef defines the
Section 4
65