ABB - Model HEC 9 Series - Generator Circuit Breaker
From Generator Circuit Breakers (GCB)
HEC 9 has been developed as a system for large sized power plant such as nuclear, coal fired and hydro power plants. It has the world's highest performance with short-circuit currents up to 300 kA and it is also highly suitable for retrofits or replacements of old GCBs in air-blast technology.
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Based on ABB’s well proven and highly reliab...
Based on ABB’s well proven and highly reliable SF6 technology, it enables lower lifecycle costs and gives a time-to-overhaul period of up to 20 years.
It is delivered in single-phase systems to facilitate the transportation and installation with plug-in design to minimize the activities at site. Besides circuit-breaker, disconnector, capacitors and control cubicle, it also includes a wide selection of additional components such as earthing and starting switches, current and voltage transformers, and surge arresters.
Characteristics
- World’s highest short-circuit current capability in SF6 technology
- Indoor or outdoor installation
- Suitable for the largest power plants
Advantages
- Compact, integrated system solution
- Maintenance after 20 years (or 5 000 close-open operations)
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