The RAM is a set of resistors to ground medium voltage electrical systems with great reliability and safety, following the requirements and recommendations of NR-10 and acting between 2.4 kV and 34.5 kV. If there is a need to supervise the neutral-ground circuit online, we have the UMT-02 RAM model, which has this functionality.
The installation of grounding resistors in neutral transformers and generators is one of the most established ways of limiting earth fault currents, especially in medium voltage applications. This solution has advantages such as the conception of a personal protection and safety philosophy allied to the limitation of the efforts due to the short circuit current.
(*) Other figures on consultation
(**) Data to be confirmed according to the technical characteristics of the equipment.
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