Novo disjuntor SACE Emax 2 com a unidade Ekip G trip para protecção de geradores (EN)

ABB

Novo disjuntor SACE Emax 2 com a unidade Ekip G trip para protecção de geradores (EN)

Publicado: 24 de fevereiro de 2015 · Categoria: Estudos de caso

Deste documento

Case studies New air circuit-breaker SACE Emax 2 with Ekip G trip unit for generator protection The customer Founded in 1946 and located in Naples (Italy), COELMO combines the innovation with the experience and skills acquired throughout the years and is now a center of excellence for the manufacture of Generating Sets for residential, commercial, industrial, and marine applications and special projects. The challenge Based on the growing interest in energy efficiency, this project concerns the construction of a cogeneration station located in Lombardy intended to meet the needs for generation and distribution of electrical and thermal power to public and private buildings. The emergency generator of Coelmo (Perkins engine and Mecc Alte three-phase alternator) has to face up to any outage caused by the lack of electrical energy from the public Utility for two power centers and their related loads. According to the design technical specification, the control switchboard of the generator set requires a main circuit-breaker that, in addition to the traditional overcurrent protections, is able to provide the following protection functions implemented on the integrated trip unit: - 81 under-/overfrequency: 2 independent thresholds - 59 overvoltage: 2 independent thresholds - 27 undervoltage: 2 independent thresholds - 51V voltage controlled overcurrent - 32 reverse power - 46 current unbalance - 40 loss of field - 51N earth fault The ABB solution Ekip G is the new trip unit with...