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
References

Our solutions tailored to customer requirements

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