General - Siemens SIPROTEC 5 Manual

Introduction

1.1 General

1.1 General
The protection of power distribution equipment is crucial in assuring a reliable electricity supply. The user
expects full availability of electrical energy at a consistently high standard of quality. Thus, for power-system
protection, for example, it is becoming increasingly difficult to distinguish between critical load cases and
short-circuits with minimum fault currents. The demands on optimum use and the corresponding parameteri-
zation of protection devices are rising. Intensive evaluation of available information from secondary equip-
ment (using fault recorders) is therefore essential. This is the only way to ensure today's currently high levels
of reliability and availability in electricity transmission and distribution systems for the future as well.
A new era has begun for fault recording with the introduction of the SIPROTEC 5 series. The 7KE85 fault
recorder was developed especially for the requirements of the changing energy market, both current and
future. Powerful, reliable monitoring, combined with the flexible engineering and communication options,
offers the basis for maximum reliability of supply.
20 SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017