| 摘要 |
FIELD: measurement, control, processing and transmission of information on great values of alternating current. SUBSTANCE: conductors of splitter pass through "window" of current transformer in parallel opposition, form primary winding of current transformer and create resulting magnetic flux proportional to difference of magnetic fluxes formed by currents in branches of splitter. Conductors have same section and are fixed in line clamps, which exclude effect of connection resistance. Value of current is found by formula I = 3KHi2, where KH is transformation ratio of current transformer; i2 is current of secondary winding of current transformer. EFFECT: enlarged limit of measured alternating currents in existing instrument transformers and reduced measurement error. 1 dwg |
