RESISTIVE (BALLAST) LOAD TESTING MODULE

摘要

The invention relates to a resistive load module that comprises at least two load units connected into a parallel circuit and having different electric resistances. Each of the load units comprises resistive members assembled into a triangular circuit and is connected to a bus bar via an automatic connection and disconnection apparatus. A unit for recording parameters of electric values, and a unit including control means, indicator means and protection means are connected to the bus bar via a measuring transformer. The module includes a fan for the forced cooling of the resistive members using external air, which is actuated by an electric motor connected to the bus bar and to the unit for recording parameters of electric values. Each resistive member comprises a tube made of stainless steel and filled with a wire made of a nickel-chromium alloy and with compacted magnesium oxide, and pin-type outputs electrically insulated from the tube and connected to the bus bar. The temperature exploitation mode of the resistive modules makes it possible to increase the equipment reliability.