FIELD: electric engineering, possible use in construction of networks with solidly grounded neutral with voltage up to 1 kV.
SUBSTANCE: method includes measuring voltages, currents and phases of secondary winding of voltage transformer, current value in neutral of force transformer, and also phase of this current relatively to voltage of secondary winding of voltage transformer. All measurements are performed at increased signal frequency in comparison to industrial level. Complexes of full conductivities of phase insulations relatively to ground are determined on basis of appropriate mathematical formulae.
EFFECT: expanded functional capabilities of method due to measuring additional parameters of network.
3 dwg
