B65
Gas-Insulated Substations
GE's B65 GIS is a field-proven solution with high availability that meets the challenges of networks up to 145 kV, 40 kA, 3150 A for power generation, transmission, distribution, tertiary and heavy industry applications. The B65 is one of the most compact 145 kV GIS solutions with single-phase enclosures and is comprised of small, light components making it easy to handle.
The B65 is environmentally friendly and features one of the lowest gas weights on the market along with an advanced SF6 sealing system. Full digital monitoring control and protection capabilities enable smart grid integration.
Building on GE's GIS experience of more than 50 years, the B65 provides high availability and data reliability with single-phase enclosures to prevent phase-to-phase faults and pure-spring circuit breakers drives.
B65
Gas-Insulated Substations
GE's B65 GIS is a field-proven solution with high availability that meets the challenges of networks up to 145 kV, 40 kA, 3150 A for power generation, transmission, distribution, tertiary and heavy industry applications. The B65 is one of the most compact 145 kV GIS solutions with single-phase enclosures and is comprised of small, light components making it easy to handle.
The B65 is environmentally friendly and features one of the lowest gas weights on the market along with an advanced SF6 sealing system. Full digital monitoring control and protection capabilities enable smart grid integration.
Building on GE's GIS experience of more than 50 years, the B65 provides high availability and data reliability with single-phase enclosures to prevent phase-to-phase faults and pure-spring circuit breakers drives.
Customer Benefits
Main Characteristics
Environment friendliness
- Low gas weight
- Advanced SF6 sealing system
High availability
- Highly reliable solutions backed by years of design and installation experience
- Current transformers outside SF6
- Single-phase enclosures: no phase-to-phase fault
- Pure-spring circuit breaker drives
Low costs of land and civil works
- Most compact 145 kV GIS with single-phase enclosures
Shortest Site Works
- Light and small single-phase components, easy to handle
Smart Grid Features
- full-digital monitoring, control and protection
Specifications
| General ratings | |
| Reference electrotechnical standards | IEEE/IEC |
| Voltages | 145 kV |
| Withstand voltages | |
| - Short-duration power-frequency, phase-to-earth / across isolating distance | 275/315 kV |
| - Lightning impulse, phase-to-earth / across isolating distance | 650/750 kVp |
| Frequency | 50/60 Hz |
| Continuous current | up to 3150A |
| Short-time withstand current | 40 kA |
| Peak withstand current | 100/108 kAp |
| Duration of short-circuit | 3s |
| Installation | indoor |
| Ambient temperature range | down to -25 / up to +55 °C |
| Circuit-breaker ratings | |
| First-pole-to-clear factor | 1.5 |
| Short-circuit breaking current | 40 kA |
| Short-circuit making current | 100/108 kAp |
| Operating sequence | O-0.3s-CO-3 min-CO/CO-15s-CO |
| Drive type (three-phase or single-phase) | Pure-spring |
| Breaking time | 50 ms |
| Closing time | 95 ms |
| Mechanical endurance | M2 class |
| Capacitive switching | C2 class |
| Disconnector and low-speed earthing switch ratings | |
| Capacitive current switching | 0.1 A |
| Bus-transfer current switching capability | 1600 A / 10 V |
| Mechanical endurance | M2 class |
| Make-proof earthing switch ratings | |
| Making current capability | 100/108 kAp |
| Switching capability - electromagnetic coupling | 80 A / 2 kV |
| Switching capability - electrostatic coupling | 2 A / 6 kV |
| Mechanical endurance | M1 class |
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