Kif it-Transformer tal-Kurrent ta' Sekwenza Zero jintuża flimkien

It-Transformer tal-kurrent tas-sekwenza żero jidher qisu żewġ kaxxi tal-ħadid ċirkolari fid-dehra, iżda huwa wkoll komponent tal-ġeneratur tad-diżil. L-istruttura tiegħu hija simili għal dik ta 'transformer tal-kurrent ordinarju permezz tal-qalba, ħlief li l-istralċ primarju tiegħu huwa t-tielet parti tas-sistema protetta. Il-konduttur ta 'kull fażi, l-istralċ sekondarju jirrifletti l-kurrent ta' sekwenza żero tas-sistema primarja.

The Zero Sequence Current Transformer should be installed on the bottom plate of the switchgear and should be fixed by a reliable bracket. However, some manufacturers or construction units install the Zero Sequence Current Transformer> current transformer on the bracket under the switchgear bottom plate, and some even bundle the Zero Sequence Current Transformer>Transformer tal-kurrent fuq il-kejbil, li jikser is-siġillar totali tal-kabinett tal-iswiċċ. Fil-prinċipju, la huwa sigur, u lanqas trab, u lanqas annimali żgħar, li jħallu ħafna perikli moħbija.

After the cable terminal head passes through the external Zero Sequence Current Transformer> current transformer, the relative position of the metal shielded ground wire of the cable and the external Zero Sequence Current Transformer>transformer kurrenti huwa żbaljat.

Zero Sequence Current Transformer>current transformer secondary connection piece was opened during cable construction, and was not restored in time after the work was completed, resulting in open circuit of current transformer>coil sekondarju tat-transformer tal-kurrent.

It-tarf ta 'l-ert tal-wajer ta' l-ert tal-għata tal-metall tal-kejbil mhuwiex iwweldjat b'terminali, u lanqas ma huwa konness mal-bar tar-ram ta 'l-ert stabbilit fil-kabinett ta' l-iswiċċ, iżda huwa casually lapped fuq il-boltijiet tal-kabinett ta 'l-iswiċċ.