Technical brochure
TB 830 WG A3.36

Application and benchmark of multiphysics simulation tools for temperature rise calculations

The development of medium voltage (MV) and high voltage (HV) switchgear comes along with a bundle of simulation and testing tasks to ensure a safe and reliable operation of the equipment over several decades. During normal operation as well as in case of short-circuit events the temperature inside the switchgear rises above ambient level. To prevent accelerated ageing of the equipment, temperature rise limits are given in the standards, depending on the used insulating media. The optimization of existing as well as the development of future switchgear require the knowledge to predict the temperature rise of the equipment during the different iterations of the development process.

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A3

Transmission and distribution equipment

This Technical Brochure has been created by a Working Group from the CIGRE Transmission and distribution equipment Study Committee which is one of CIGRE's 16 domains of work.
The scope of the SC A3 covers theory, principles and concepts, functionality, technological development, design, performance and application of materials, efficiency and operation for all devices for switching, interrupting and limiting currents, load switches, re-closers, ring-main units disconnecting switches, earthing switches surges arresters, capacitors, busbars, equipment insulators and instrument transformers and all other equipment within the substation not specifically covered under another equipment Study
Committee’s scopes.

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