| 摘要 |
A current measuring device of high voltage instrument insulated using electromagnetic induction is provided to secure the accuracy and the profitability of the current characteristics curve by comprising the current transformer only with the coil. A support insulator is installed at the upper part of frame. The current(I1) is applied to the U-shaped booth bar(301) in the support insulator and the magnetic field is formed. The magnetic field formed in the neighboring of booth bar generates the induced electromotive force in a current transformer(304). The magnetic field induces the indirect induced electromotive force In neighboring current transformers(305,306). The current (I2) is applied to the booth bar and the magnetic field is formed around the booth bar. The magnetic field generates the main induced electromotive force in the current transformer. The current(I3) is applied to the booth bar and the magnetic field is formed around the booth bar. The magnetic field generates the main induced electromotive force in the current transformer. |
