The HB3 reduces both your costs and your environmental footprint
Siemens HB3 is world’s first and unique generator switchgear taking advantage from vacuum switching technology for application up to 12,700 A and short circuit ratings up to 110 kA. With its single-phase encapsulated design, the HB3 fulfills all requirements for its integration between the generator and the generator step-up transformer (GSUT) on the Insulated Phase Bus (IPB). Optionally, the switchgear can be equipped with line disconnecting switch, earth disconnecting switch on generator side and/ or transformer side, instrument transformers, surge arrester(s) and/ or a start-up disconnecting switch.
We designed the HB3, so you deliver your objectives:
• Maintenance free vacuum technology with up to 10,000 CO operating cycles at full nominal rated current
• Features full-spring operating mechanism stated to be the most reliable* way to operate a GCB with lifespan up to 20,000 CO operation
• Equipped with sealed-for-lifetime** vacuum interrupter
• Simplified footprint without dynamic forces during switching operations, it facilitates designing & sizing of GBS´s supporting structure
• Forklift-ready design will turn on-site erection effortless
• Protection index up to IP66
• Factory-assembled switchgear
• No CO2e emissions during operation, no-use of F-gas at maintenance or recycling