Apparatus and method of monitoring insulation of a DC network that is electrically insulated with respect to the ground potential of a device

   
   

Insulation monitoring of an electrical network such as a DC network which is electrically insulated with respect to the ground of a device, includes at least two insulation monitoring devices that monitor different network sections, which can be isolated by one or more switches. Non-contacting switches are used to alternatingly connect and isolate respective measuring resistors of the monitoring devices to, and from, ground, as a result of which the insulation monitoring devices can not negatively affect each other's measurements.

A monitoração da isolação de uma rede elétrica tal como uma rede da C.C. que seja isolada eletricamente com respeito à terra de um dispositivo, inclui ao menos a isolação dois que monitora os dispositivos que monitoram as seções diferentes da rede, que podem ser isoladas por um ou mais interruptor. Os interruptores non-contacting são usados conectar e isolar alternatingly os resistores de medição respectivos dos dispositivos de monitoração, e, da terra, em conseqüência de que a isolação que monitora dispositivos não pode negativamente se afetar medidas.

 
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