Introduction - ABB REF542plus Manual

1VTA100114-Rev. 04 en
Valid from Version V4D02
Multifunction Protection and Switchgear Control unit REF542plus
Manual: Motor Protection with ATEX-Certification

1 Introduction

This part of the manual for the multifunctional protection and switchbay control unit
REF542plus primarily focuses on the integrated motor protection functions. section
and its subsections contain information on:
The basic principle of functioning
Setting of the parameters
Representation of the tripping characteristic
PTMV, 19.01.05 Motorprotection 6 / 66