Siemens SG8158-00 manual Introduction, Safety, About this Manual

Introduction 1

1 Introduction 1.2 Safety

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- tor’s 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.

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

Siemens Energy & Automation, Inc. 1