![]() ![]() Also covered is the topic of sequence of load connection. Electrical Load Impact on Generator Sizing explains various load types, their characteristics and their impact on the generator set size, opera- tion and equipment choices. When designing a generator set installation, Reviewing and understanding these reasons is useful as a starting point for the system design and equipment choices. Equipment and installation requirements vary depending on the reasons for having the generator set and its intended use. Preliminary Design describes preliminary consid- erations for a generator set project. This manual consists of seven major sections: Preliminary Design, Electrical Load Impact on Generator Sizing, Equipment Selection, Electri- cal Design, Mechanical Design and Appendix. About this Manual This manual describes the specification and application of stationary, liquid–cooled, diesel and spark ignited engine–generator sets – referred to as “generator sets” in this manual. The purpose of this manual is to provide guidance to system and facility designers in the selection of appropri- ate equipment for a specific facility, and the design of the facility, so that these common sys- tem needs are fulfilled. Whatever the use of the on–site power is intended to be, reliability of service from the on– site equipment, performance, and cost–effective- ness are primary concerns of users. Prime power electrical supplies, to both remote communities that are not served by a commercial electric power grid, and to those sites where the commercial power grid is for some reason not available for extended periods of time, are also becoming a requirement, rather than a luxury, to many users. Because of their important role, generator sets must be specified and applied in such a way as to provide reliable electrical power of the quali- ty and capacity required. They provide emergency power in the event of utility power failure and can be used to reduce the cost of electricity where the local utility rate structure and policy make that a viable option. As a result, engine–generator sets are routinely being specified for new building construction as well as for retrofits. Beyond reliability concerns, there are growing economic incentives favoring the instal- lation of on–site engine–generator sets. This need is also fueled by the continuing proliferation of electronic computers in data processing, process control, life support sys- tems, and global communications –– all of which require a continuous, uninterrupted flow of electri- cal energy. Facili- ties such as large office buildings and factories, as well as telecommunications installations, data centers, and Internet service providers are dependent on electric power that is available 24 hours a day, seven days a week with essentially no interruptions. ![]() Electric power supplies are critical to almost any facility, and a reliable electric supply is vital to an increasing number of facilities. Application Manual – Liquid Cooled Generator Sets 7 1 INTRODUCTION 1 INTRODUCTION Overview The world is becoming more and more electricity– dependent.
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