Preprocessing Blocks And Fixed Signals; Control Functions; Generator Bay Control Qccbay - ABB RELION 630 Series Applications Manual

Section 3
REG630 variants
3.2.4
3.2.5
3.2.5.1
28
Table 8: Analog input interface
Hardware module Hardware channel Usage
instance
AIM_2 CH1
AIM_2 CH2
AIM_2 CH3
AIM_2 CH4
AIM_2 CH5
AIM_2 CH6
AIM_2 CH7
AIM_2 CH8
AIM_2 CH9
AIM_2 CH10

Preprocessing blocks and fixed signals

The analog current and voltage signals coming to the IED are processed by
preprocessing blocks. A preprocessing block with two different task times is
available. All the function blocks functioning at 3 ms task time must be connected
with a preprocessor operating at 3 ms. Similarly, all the function blocks functioning at
10 ms task time must be connected with a preprocessor operating at 10 ms.
The preprocessor calculates various quantities based on an adaptive DFT. The
adaptive DFT requires a reference frequency for performing calculations. In this
configuration, the voltage signals are taken as reference for calculating various phase-
side and neutral-side current quantities.
See the technical manual for details on frequency adaptive.
A fixed signal block providing logical TRUE and FALSE output is used, and
connected internally to other functional blocks as needed.

Control functions

Generator bay control QCCBAY

Bay control is used for handling the selection of the operator place per bay. It provides
blocking functions that can be distributed to different apparatus within a bay. Bay
control sends information about the PSTO and blocking conditions to other functions
within the bay, such as to switch control functions.
Line-side current, IL1
Line-side current, IL2
Line-side current, IL3
Differential neutral current, I0
Neutral-side current, IL1_N
Neutral-side current, IL2_N
Neutral-side current, IL3_N
Line-side voltage, U1
Line-side voltage, U2
Line-side voltage, U3
1MRS757582 C
REG630
Application Manual