IEEE

IEEE PC37.121

IEEE Draft Guide for Switchgear - Unit Substation - Requirements

IEEE PC37.121

IEEE Draft Guide for Switchgear - Unit Substation - Requirements

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Наименования

IEEE PC37.121 IEEE Draft Guide for Switchgear - Unit Substation - Requirements

IEEE PC37.121 IEEE Проект руководства для распределительных устройств - Устройство ПС - Требования

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This guide covers three-phase unit substations for step-down operation in the range of 112.5 kVA or greater at primary voltages of 601 V through 38 kV.This guide does not cover the following installations:a) Substations in which the transformer section is described and defined as "network," "subway," "vault," or "underground" in IEEE Std C57.12.24 and IEEE Std C57.12.40.b) Substations in which the transformer section is described and defined as "pad-mounted" in ANSI C57.12.22 and IEEE Std C57.12.27.c) Gas-insulated substations as described in IEEE Std C37.122.d) Rectifier-type substations.e) Mobile unit substations.f) Installations in ships, watercraft, railway rolling stock, aircraft, or automotive vehicles.g) Installations for mines.h) Installations of railways for generation, transformation, transmission, or distribution of power used exclusively for operation of rolling stock, or for installations used exclusively for signaling and railway communication purposes.i) Installations of communication equipment that is under the exclusive control of communication utilities, located outdoors or in building spaces used exclusively for such installations.j) Installations under the excl

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[4] IEEE Power and Energy Society

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