2
Introduction to the technical reference manual
Chapter 1
Introduction
1
Introduction to the technical reference manual
1.1
About the complete set of manuals for a terminal
The users manual (UM) is a complete set of four different manuals:
The Application Manual (AM)
contains descriptions, such as application and functionality de-
scriptions as well as setting calculation examples sorted per function. The application manual
should be used when designing and engineering the protection terminal to find out when and for
what a typical protection function could be used. The manual should also be used when calcu-
lating settings and creating configurations.
The Technical Reference Manual (TRM)
contains technical descriptions, such as function
blocks, logic diagrams, input and output signals, setting parameter tables and technical data sort-
ed per function. The technical reference manual should be used as a technical reference during
the engineering phase, installation and commissioning phase, and during the normal service
phase.
The Operator's Manual (OM)
contains instructions on how to operate the protection terminal
during normal service (after commissioning and before periodic maintenance tests). The opera-
tor's manual can be used to find out how to handle disturbances or how to view calculated and
measured network data in order to determine the cause of a fault.
The Installation and Commissioning Manual (ICM)
contains instructions on how to install
and commission the protection terminal. The manual can also be used as a reference if a periodic
test is performed. The manual covers procedures for mechanical and electrical installation, en-
ergizing and checking of external circuitry, setting and configuration as well as verifying set-
tings and performing a directional test. The chapters and sections are organized in the
chronological order (indicated by chapter/section numbers) in which the protection terminal
should be installed and commissioned.
1.2
Design of the Technical reference manual (TRM)
The description of each terminal related function follows the same structure (where applicable):
Application
States the most important reasons for the implementation of a particular protection function.
Application
manual
Technical
reference
manual
Installation and
commissioning
manual
Operator´s
manual
en01000044.vsd
Summary of Contents for REL 551-C1*2.5
Page 1: ...Technical reference manual ProtectIT Line differential protection terminal REL 551 C1 2 5 ...
Page 23: ...14 Introduction to the technical reference manual Chapter 1 Introduction ...
Page 39: ...30 Technical data Chapter 2 General ...
Page 63: ...54 Blocking of signals during test BST Chapter 3 Common functions ...
Page 71: ...62 Line differential protection phase segregated DIFL Chapter 4 Line differential protection ...
Page 89: ...80 Thermal phase overload protection THOL Chapter 5 Current ...
Page 101: ...92 Event function EV Chapter 7 Logic ...
Page 163: ...154 Terminal diagrams Chapter 11 Diagrams Figure 39 REL 551 C1 with DC switch ...