Introduction, 1 introduction – Siemens ISGS SG8158-00 User Manual

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Introduction

Siemens Energy & Automation, Inc.

1 Introduction

The Intelligent SwitchGear System (ISGS) from Siemens is

a high-speed, numerical, microprocessor-based protective

relay designed to be easily incorporated into a computer-

monitored medium voltage power system. The relay is

designed and manufactured in accordance with the latest

provisions of the applicable IEEE, ANSI, and NEMA stan-

dards. You must thoroughly read and understand this opera-

tors manual before you begin any work with the ISGS relay.

Successful application and operation of this equipment

depends as much upon proper installation and maintenance

by the user as it does upon the careful design and fabrication

by Siemens.

1.1 About this Manual

The purpose of this manual is to assist the operator in devel-

oping safe and efficient procedures for the installation, main-

tenance, and use of the equipment.

This manual provides the necessary information to safely

install, operate, configure, maintain, and troubleshoot the

ISGS relay. In addition, the manual offers worksheets for

parameter settings, acceptance test procedures, and trou-

bleshooting. For quick reference, a complete menu structure,

metering accuracies, trip curves, equations, and schematics

are included in the appendix.

Contact the nearest Siemens representative if any additional

information is desired.

1.2 Safety

Qualified Person

For the purpose of this manual and product labels, a Quali-

fied Person is one who is familiar with the installation, con-

struction, and operation of this equipment, and the hazards

involved. In addition, this person has the following qualifica-

tions.

Training and authorization to energize, de-energize,

clear, ground, and tag circuits and equipment in accor-

dance with established safety practices

Training in the proper care and use of protective equip-

ment such as rubber gloves, hard hat, safety glasses or

face shields, flash clothing, etc., in accordance with

established safety procedures

Training in rendering first aid

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