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Introduction and Overview
WL Circuit Breaker
General
This manual is aimed at those
who want to find out more
about the different applications
of communications-capable
circuit breakers in power
distribution systems. It
contains a detailed guide
to commissioning, operating,
diagnosing and maintaining the
new communications-capable
WL Circuit Breaker.
1/1
Content of the Manual
Chapter 1 contains a short
introduction to communications
in power distribution systems, and
provides an overview of the benefits
and applications of communications-
capable circuit breakers. The chapter
concludes with a short description of
the most important communication
bus systems.
Chapter 2 contains a general
description of the WL Circuit
Breaker. It includes information
on configuration data and provides
commissioning instructions.
Chapter 3 explains how the WL circuit
breaker is integrated in a PROFIBUS-DP
system. The PROFIBUS-DP profile is
also described in this chapter.
WL is the first circuit breaker that
can be configured, diagnosed and
maintained remotely without the use
of field bus systems and higher-level
operator control and monitoring
systems. These procedures are carried
out using the breaker data adapter
(BDA), a state-of-the-art Internet-
capable configuration device for
circuit breakers, which is described
in Chapter 4.
WL PROFIBUS Communication and Electronic Accessories • July 2004
Introduction
The demand for communications-
capable systems, data transparency
and flexibility in industrial automation
systems is growing all the time. Bus
systems and intelligent switchgear
are vital to ensure that industrial
power systems can meet these
demands, since industrial production
and building management are
now inconceivable without
communications technology.
The evermore-stringent requirements
placed on the electrical and
mechanical aspects of circuit
breakers, the growing need for
flexibility and efficiency, and
increasing cost pressure and
automation have contributed to
the recent major innovations in
circuit breaker technology. In power
distribution systems, the WL Circuit
Breaker uses industry-standard bus
systems to transmit key information
for warnings, commissioning, and
load shedding to a central control
room. The wide range of applications
ensure that these circuit breakers are
more than just simple switching and
protective devices.
Point-to-point communication, as
well as data entry, transmission,
analysis and visualization are only
possible if the automation and low-
voltage switchgear technology
components can be easily integrated
in a communication solution to
leverage the full range of functions
available.
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