ABB RED650, Technical Manual

Page: 821 / 926

22.2.5.1 Introduction
M14875-3 v9
The transformer input module is used to galvanically separate and adapt the
secondary currents and voltages generated by the measuring transformers. The
module has twelve inputs in different combinations of currents and voltage inputs.
Alternative connectors of Ring lug or Compression type can be ordered.
22.2.5.2 Design
M14858-3 v7
The transformer module has 12 input transformers, 7 voltage and 5 current input
transformers.
The rated values and channel type of the current inputs are selected at order.
Transformer input module for measuring should not be used with
current transformers intended for protection purposes, due to
limitations in overload characteristics.
The TRM is connected to the ADM and NUM.
For configuration of the input and output signals, refer to section "Signal matrix for
analog inputs SMAI" .
1MRK 505 394-UEN A
Section 22
IED hardware
Line differential protection RED650 2.2 IEC 815
Technical manual