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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />ensure that there will not be adverse effects <br />public, or to utility equipment and personnel. In <br />are requirements to ensure reliable operation <br />against malfunction of the District's equipment. <br />requirements must be met with reasonableness <br />jUdgment. <br /> <br />on the general <br />addition, there <br />and protection <br />Both of these <br />coupled with <br /> <br />This installation is relatively small and thus large expendi- <br />tures for exotic equipment are not justified. Furthermore, the <br />unit will be unattended, except for starting, stopping and maint- <br />enance, so simplicity of operation is desirable. A facility using <br />an induction generator best fits the requirements and capabilities <br />of this particular installation. <br /> <br />Furthermore, this particular installation has an economic <br />incenti ve beyond selling the power. The facility can use some <br />generated power both for station use and to supply the dam attend- <br />ant's residence with electricity for domestic purposes, primarily <br />heating. <br /> <br />The specific requirements of CUEA include: <br />1. facility isolation, <br />2. a circuit breaker, <br />3. surge arrestors, <br />4. a dedicated transformer, and <br />5. protective relaying to provide short circuit protection <br />and isolation protection. <br /> <br />Additional devices for protection of the owner's facility and <br />equipment are required. A description of how these requirements <br />are to be met can be found in subsequent sections. <br /> <br />The size ratings of the turbine generator were selected on <br />(1) the available head and water flows and, (2) compatibility with <br />a readily available, essentially standard induction motor and pump <br />as turbine. <br /> <br />7.0-15 <br />