Accesories / Capacitor Duty Contactor
|In low voltage installations, when a capacitor get connected, a greater transient and inrush phenomena occurs. This has the consequence that the switching of the capacitor results in a high transient and this transient can disturbs the electrical network. A part of the nominal current, occurs an over current higher than 180xIn and high frequency (3-15 kHz) while a period of 1-2 ms. This peak currents caused by the connection of capacitors are depend on the following factors:
The peak current for large magnitude is undesirable and it is dangerous for the standard contactors and increases stress on the capacitors. For that reason, we recommend the utilization of specific designed contactors for capacitors switching model TC1-D of RTR Energía that ensures proper operation for this application.
|Contactors for capacitor applications are designed to accomplish special operating requirements.
These contactors incorporate a frontal block with damping resistors to absorb the current peak in the connection of the capacitors.
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