messanordnung to spectrally dissolved measurement of impendanz of electricity distribution networks

摘要

The measuring device of spectrally resolved measurement is carried out for the impedance to the current supply network for assessing network state, it is characterized in that measuring device according to the present invention has in single-phase power supply network, there are two optical transistors (1, 2), and the first smooth triode ac switch (ST1) (1) connection of connection ohm R test loads resistor (3), and connection has the second optical transistor (st2) (2) of rc test loads resistance (4), second optical transistor (st2) (2) is made of the series circuit of Ohmic resistance (rt2) (5) and capacitor (ct2) (6), and it is provided with control unit (7), two of them optical transistor (st1, st2) (1, 2) scheduled half-wave is arrived. It opens at the phase angles ES, in this way, test load electric currents (it) with multiple superposition frequencies and test load electric current (it) for measuring test load electric current (it) -- for measuring the transient recorder (it) (8) of test load electric current, and at least for measuring the transient recorder of the electric current in impedance (iv). CES measures (Z, V, Z N, Z 1). Z x, z, v, n_pe, z n, n_pe) it is connected with optical transistor (st1, st2) (1,2), which provided another transient recorders for measuring the measurement point voltage (ut) (9) between measurement point pole.