High speed bypass switch for high voltage DC systems

Request Number N465215
Need details

Development and / or supply of a high speed bypass switch for high voltage DC applications.


The switch is part of every level in High-Voltage Direct Current (HVDC) and Static VAR compensator (SVC) multilevel converters.











Siemens Energy Management is a partner to develop and / or supply HVDC and SVC multilevel converters. 


In HVDC and SVC converters many power modules are connected in series. To ensure a highly reliable and uninterrupted converter operation a device to bypass a failed power module is needed. The voltage level of every power module is given by available Insulated-Gate Bipolar Transistors (IGBTs). If a power module should fail a fast bypass switch has to be closed. The bypass switch remains closed after a single ignition.


Key Success Criteria

Siemens Energy Management is seeking:

  • New approaches for high speed, high voltage bypass switching
  • That have the potential to meet the specifications of the current bypass switches used in Siemens systems
  • Can be developed in approximately 12 months

The specifications of the current bypass switch we use are:                                              

  • Bypass switch for voltage class between 3.3 kV and 6.5 kV          
  • Closing time equal to, or lower than, 10 ms
  • Current higher than 1500 Amps


  • Better performance than above, if possible, is welcome 









Possible Approaches

Siemens is open to all possible solutions for example, but not limited to:

  • Electrical
  • Mechanical
  • Semi-conductor
  • Vacuum tube
  • Pre-tensioned springs or equivalent


  • Other solutions are most welcome.


Approaches not of interest

Siemens is open to all possible solutions.

Preferred Collaboration types
  • Joint Development
  • Contract Analysis and Testing
  • Consulting
  • Supply Agreement
Items to be submitted

We are looking for concise, non-confidential proposals. The proposal should:

•           Describe the technical approach

•           Include a description of the responding organisation or team and their experience


Please use the Respond button in order to submit your proposal. 


We recommend:

•           including a concise abstract summarising your submission

•           attaching your proposal

•           attaching any additional documents


Please note that only non-confidential information can be accepted. By submitting a response you confirm that the response does not contain any confidential information.



Point of Contact
Stephen Clulow
Area of Interest
  • Electronics & Electronic Components
  • Electrical Products
Due Date
March 31, 2017
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