ABB REF542plus - 1 Introduction

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
1VTA100114-Rev. 04 en PTMV, 19.01.05 Motorprotection 6 / 66
Valid from Version V4D02