A Study on the Improvement of the Arithmetic for Emergency Generator Capacity

다국어 초록 (Multilingual Abstract)

This paper describes the improvement of the arithmetic for emergency generator capacity. This formula which calculates emergency generator is dependent on the Korean Design Standard of building electrical equipment issued by the Ministry of Land, Infrastructure and Transport, and the technical data related to the generator. when appling the formula, the capacity of the generator is insufficient at the starting conditions of the load facility. In case of emergency, the generator is not operated normally. of the formula (, , ) applied in determining the capacity of the emergency generator is selected by calculating the capacity of the generator based on only biggest one motor among the load equipment and may not be able to start the generator normally in case of emergency because there is an error such that the power factor is applied at the last start of the motor having the maximum capacity of the load. We analyze the problem of capacity calculation of emergency generators used for general purposes. As a consequence, the improved formulas have been presented for safety of electrical installation.

다국어 초록 (Multilingual Abstract)

This paper describes the improvement of the arithmetic for emergency generator capacity. This formula which calculates emergency generator is dependent on the Korean Design Standard of building electrical equipment issued by the Ministry of Land, Infrastructure and Transport, and the technical data related to the generator. when appling the formula, the capacity of the generator is insufficient at the starting conditions of the load facility. In case of emergency, the generator is not operated normally. PG _{2} of the formula (PG _{1}, PG _{2}, PG _{3}) applied in determining the capacity of the emergency generator is selected by calculating the capacity of the generator based on only biggest one motor among the load equipment and may not be able to start the generator normally in case of emergency because there is an error such that the power factor is applied at the last start of the motor having the maximum capacity of the load. We analyze the problem of capacity calculation of emergency generators used for general purposes. As a consequence, the improved formulas have been presented for safety of electrical installation.

참고문헌 (Reference)

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4 Ministry of land, Infrastructure and Transport, "Korean Design Standard 31 60"

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6 "IEEE Recommended Practice for Industrial and Commercial Power System Analysis"

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9 Seoul Housing & Communities Corporation, "Electricity and information communication design standard"

10 H. G. Choi, "Design of the latest power facilities" BM Sung an Dang 210-212, 2011

11 D. H. Kwon, "A study on improvement method of generator capacity calculation method considering engine output for generator" Graduate School of Hanyang University 2017

12 J. H. Lee, "A Study on Emergency Generator Capacity Calculation (PG)" 291-292, 2018

13 J. H. Lee., "A Study on Calculation Method for Fire Load(PG)of Calculating generator capacity of building electrical design standard" 406 : 44-47, 2016