HB3 Open-Frame solutions up to 120 kA

HB3 Open-Frame solutions up to 120 kA

Bolt-on solutions with rated nominal current up to

0 A

  • Unique horizontal and vertical installation capabilities

  • Common or individual supporting frame design

  • With optional integrated line and earth disconnecting switches

  • Save up to 75% of your OPEX by selecting vacuum technology

Find out which of our solution match with your expectation:

Configure, and get your engineering documentation

Find out which of our solution match with your expectation:

Configure, and get your engineering documentation

Product information

The most versatile solution for your retrofit application and new projects

Siemens HB3-OF is a unique generator circuit breaker solution offering one of highest level of customization to match even the most challenging constraints. The HB3 open-frame solution can be mounted either vertically or horizontally, its phase-to-phase spacing, and phase height axis can be adjusted to perfectly to fit the existing busbar´s connection points. Optionally, the circuit-breaker can be fitted with integrated line disconnecting switch, earth disconnecting switch on generator side and/ or transformer side.

We designed our open-frame solution, so its answers your challenges:

  • Common or individual supporting frame design
  • Vertical or horizontal installation
  • 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
  • Its forklift-ready or retractable wheels design will turn on-site erection effortless
  • Can be delivered with integrated line disconnecting switch, earth disconnecting switch on generator side and/ or transformer side

* Most reliable operating mechanism as per final report number A3-206 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
kV
17.5
24
Frequency
Hz
50/60
50/60
Power-frequency withstand voltage/across isolating distance
kV
up to 50/60
up to 60/70
Lightning impulse withstand voltage/across isolating distance
kV
up to 110/125
up to 125/145
Normal current at 40oC ambient temperatures
- at 50 Hz
- at 60 Hz
A

8,000/10,000/12,500
8,000/10,000/12,500

8,000/10,000/12,500
8,000/10,000/12,500
Short-time withstand current/duration
- Generator circuit
- Earthing circuits
kA/s

100/3
100/1

100/3
100/1
Peak withstand current
kA
274
274
Short-circuit breaking current
kA
100
100
Short-circuit making current
kA
274
274
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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Downloads and Services (Training)

Take advantage of our services

Here you will find important information, documents and training:

Catalogs

Brochures

Flyer

Training: Siemens Power Akademie

References

Our solutions tailored to customer requirements

Reliability and safety are essential. This is the key to our success.
Marzhan, Germany
Energy

Clean Energy from Berlin: Customer relies on HB3 generator switchgear

  • The HB3 generator switchgear in the combined heat and power plant ensures high reliability at lower operating costs.

  • The SF6-free solution was also decisive for reducing the carbon footprint of Marzhan.

Configurator

Find out which of our solution match with your expectation:

Configure, and get your engineering documentation

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        

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