Generator circuit-breaker HVS-63S up to 63 kA

The HVS-63S GCB with SF₆ interrupting technology for short-circuit currents up to 63 kA and rated currents up to 7,150 A suitable for generators of up to 200 MW. Based on the well-proven HVR-63 technology, the new GCB is a full system-type with the following features:
 

• Built-in erosion monitoring feature for real-time visual indication of the remaining time to service 
• HMB-1 spring drive offers 50 percent less energy demand compared to mid-sized GCB
• Combined disconnector and earthing and starting switch allows use of only one operating mechanism per pole
• Low SF₆ content of only 5.1 kg for three poles, with low leakage rate of less than 0.1 percent per year 
• Innovative breaking chamber with double main contacts for higher stability of resistance during maintenance span (20 years or 10,000 close-open operations).
• Compact design fits into a standard 20-feet container for easy transportation and handling.

Applications

• New installations, replacement and retrofit of power plants up to 200 MW
• Most optimal system type solution for smaller capacity power plants

Why Hitachi Energy?
 

• System type GCB with built-in contact erosion indicator for highest safety and reliability
• Fully assembled, factory tested plug-in design brings substantial time and cost savings in installation and commissioning
• Type tested and exceeds the mandatory requirements of the latest GCB standard and IEEE C37.013