HB3 Generator Switchgear for 63 - 110 kA

HB3 Generator switchgear HB3 GBS HB3 GCB Generator switchgear for 63 - 100 kA Generator switchgear for power plant up to 400 MW HB3 Generatorschaltanlage Generatorschaltanlage für 63 - 100 kA  Generatorschaltanlage für Kraftwerke bis 400 MW

Most durable solution for power plant

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Product information

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

* Most reliable operating mechanism as per final report number A3-00 from the CIGRE 2012 General Report SC A3.

** R. Renz, D. Gentsch, P. Slade, H. Fink, M. Schlaug, "Vacuum Interrupters – Sealed for Life", 19th Int. Conf. on Electr. Distr. (CIRED), Paper 0156, 21-24 May 2007

Technical Data

Rated
 
 
Voltage (up to)
kV
24
Frequency
Hz
50/60
Power-frequency withstand voltage/across isolating distance
kV
up to 60/70
Lightning impulse withstand voltage/across isolating distance
kV
up to 125/145
Normal current at 40oC ambient temperatures (up to)
- at 50 Hz
- at 60 Hz
A

12,700
12,065
Short-time withstand current/duration (up to)
- Generator circuit
- Earthing circuits
kA/s

110/3
110/1
Peak withstand current
kA
274
Short-circuit breaking current
kA
100
Short-circuit making current (up to)
kA
302
Optional equipment
 
 
Start-up disconnector
- Rated voltage
- Rated normal current at 40oC ambient temperature at 50/60 Hz
- Start-up current at 40oC ambient temperature
Rated short-time (1s)/peak current

kV
A
A/min
kA

7.2
1,800/1,600
2,500/50
63/173
Temporary short-circuiting devices
- KSV 1, 5000 A / 30 min and KSV 2, 10,000 A / 30 min
 

KSV 2
Dimensions
 
 
Width, including control panel, for standard pole-center distance of 1,200 mm
mm
4,235
Depth
mm
2,294
Height, minimum/maximum
mm
2,478/2,628
Range of pole-center distance
mm
1,200-1,800
Height of connection terminal center line above ground, minimum/maximum
mm
1,350-1,500
Diameter IP8-system
mm
600-960

HB3 vacuum generator circuit-breaker switchgear

in the example of a combined-cycle power plant

  • 80 – 400 MW
  • up to 24 kV
  • up to 12,500 A
  • up to 100 kA/3 s
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References

Our solutions tailored to customer requirements

Reliability and safety are essential. This is the key to our success.
Whitepaper

Further information

The paper “Vacuum Circuit-Breakers – Promising Switching Technology for Pumped Storage Power Plants up to 450 MVA” was awarded with the Wang Jimei Best Young Investigator Paper Award at the International Conference on Electric Power Equipment – Switching Operation 2017 in Xi’an (China).

Contact

Get in contact with our Customer Service:

You can contact us 24/7. We are looking forward for your call or online request. Phone +49 180 524 70 00