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High-voltage fuses: reliable as the fire brigade
Fuses for transformers
Power transformers are highly sophisticated, motionless electric machines. The start-up process is also a highly sophisticated matter, involving high currents, but without causing the fuse to trip. On the other hand, though, the power circuit must be reliably interrupted if excessively high currents flow for an excessively long time. In this particular area, standards can provide general recommendations only – but thanks to our many years of experience, we knowexactly what fuse is needed to take care of what situation.
Click here to find a list of our fuses for transformers.
Fuses for voltage transformers
Whether installed in smart substations that help master Germany’s energy transition or in switchgear whose voltage transformers have to meet strict customer requirements: HV fuse links from SIBA protect components that are indispensable to our energy supply.
Fuses for motor protection
In high-voltage motor circuits, conditions are tough: Load changes, high start-up currents and high levels of vibration mean stress for both the motor and the peripherals. Our fuses have been specifically designed with these conditions in mind and with the ability to meet German, international and, in particular, also British standards. They combine low power losses with excellent current limitation. As a result, they ensure that also where short circuits are concerned, your motors and equipment are reliably protected.
Fuses for capacitor banks
Among the key components in the energy supply chain are switchable capacitor banks. These help to keep the mains output constant by controlling the flow of reactive power if and when needed. If capacitors arranged in banks of this kind are switched on, they generate equalising currents which are similar to short circuits. SIBA fuses for high-voltage capacitors are optimally designed for their purpose. They protect important equipment from failure. Like the world’s biggest capacitor bank at the Helmholtz research centre in Dresden.