CPC G01R 19/2506 (2013.01) [G01R 1/203 (2013.01); G01R 15/144 (2013.01)] | 18 Claims |
1. An arrangement for determining the magnitude of a current flowing through a busbar, the arrangement comprising:
a measurement conductor which is electrically connected to the busbar at a first contact point and which extends from the first contact point to a second contact point;
a third contact point arranged at the busbar and spaced apart from the first contact point;
a voltage measurement device configured for measuring a voltage between the second contact point and the third contact point;
a controlled current source configured for injecting a measurement current into said measurement conductor; and
an evaluation device configured to determine the magnitude of the current flowing through the busbar from a magnitude of a measurement current, from a cross sectional area of said measurement conductor that is effective for conducting the current, and from a cross sectional area of the busbar that is effective for conducting the current.
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