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Featured Video - ABB Power Grids - 4th December 2017

ABB’s Generator Circuit-Breaker Protects Slovenia’s First Pumped Storage Power Plant

ABB’s generator circuit-breaker protects Slovenia’s first pumped storage power plant

ABB’s generator circuit-breaker (GCB) has been protecting key equipment at Avče pumped storage power plant to enhance its safety and reliability. Integrated with an innovative monitoring system, GMS600 supports online asset health management which is key in digitalization of equipment.

The integrated solution HECPS-3/5S is unique in the market providing all functions required by pump storage power plants (PSPP) in one system and from a single manufacturer.

HECPS-3/5S consists of three individual modules: generator circuit-breaker (GCB) module with starting frequency converter (SFC) and back-to-back (BtB) starting switches, 5-phase disconnector, phase reversal module and electrical braking switch.

Based on the modern HECS products group, with short circuit ratings of up to 130 kA and nominal currents of up to 17,500 A, it satisfies the requirements of largest pump storage power plants around the globe.

The system includes circuit-breaker, disconnector, capacitors and control cubicle, and offers a wide selection of additional components, such as earthing switches, current and voltage transformers, and surge arresters. It is delivered fully assembled to minimize the installation and commissioning time at site. The control, monitoring and interlocking functions of the complete system are integrated in single control cubicle.

Applications

  • Applications for power plants up to 600 MW
  • Special solution for pumped storage power plants consisting of:
  • GCB module with SFC and BtB starting switches
  • 5-phase disconnector and phase reversal module
  • Electrical Braking switch

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