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6.9 Switching of capacitive loads
2. Energizing with a 3RT2636 capacitor contactor (with precharging)
Result: The maximum inrush current peak can be reduced to less than 5 kA (depending on
precharging).
Conclusion:
With 3RT26 capacitor contactors, it is possible to directly energize capacitors even without
the use of reactors. This means that a high useful life of the contacts is achieved without
contacts failing prematurely due to contact welding, as conventional contactors can, even
without the installation of reactors.
Note
Capacitor energizing was examined at a maximum of the 5-fold parallel load and the useful
life checked.
110
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
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