Ingabe i-insulation material ye-motor inqunywa ubukhulu bamanje noma i-voltage?

Ingabe i-insulationimpahlayenjini enqunywa ubukhulu bamanje noma i-voltage?

Insulation impahlaiyimpahla ebalulekile ebalulekile yemikhiqizo yezimoto. Amamotho anamazinga ahlukene kagesi anomehluko omkhulu ekwakhiweni kokufakwa kwama-windings awo kanye nezingxenye zawo ezibalulekile. Isibonelo, ukwakheka kwe-insulation ye-high-voltage motor kanye ne-low-voltage motor windings kuhluke kakhulu. .

Izinto zokuvikela, eyaziwa nangokuthi i-dielectrics, izinto ezine-resistivity ephezulu kakhulu kanye ne-conductivity embi kakhulu. Zibuye zisetshenziswe emikhiqizweni yezimoto ngenxa yokungahambi kahle kwazo. Emikhiqizweni yezimoto, ngokusebenzisa izinto zokuvikela, ngakolunye uhlangothi, izintambo eziqhutshwayo zixhunywe nezinye izingxenye. Ukuhlukanisa, ngakolunye uhlangothi, ukuhlukanisa amaphuzu ahlukene omugqa wokuqhuba, njengokuhlukanisa phakathi kwama-turn kanye ne-inter-phase insulation. Izinto ezihlukene zokuvikela i-insulating nazo zingaba nezakhiwo ezahlukahlukene njengokusekela, ukulungiswa, ukucisha i-arc, ukumelana nesikhutha, ukuvikelwa kwemisebe kanye nokumelana nokugqwala.

Ukushiswa kwama-motor windings kuwukubonakaliswa okukhonkolo kokuwohloka noma ukunyamalala kokusebenza kokufakelwa. Khona-ke, ingabe ukusebenza kwe-insulation ye-motor yehlisiwe ngenxa yamandla amakhulu ajikayo noma amandla kagesi aphezulu?

Uma i-motor winding current inkulu kakhulu, ukuminyana okuphezulu kwamanje kuzobangela ukumelana nama-winding ukuthi kukhule futhi kubangele ukukhiqizwa kokushisa okukhulu. Ukushisa okukhiqizwe yi-motor kuzohlakazwa nge-insulation. Lapho ukushisa kufinyelela ezingeni elithile, ukwakheka kwezinto zokuvikela kuzoshintsha izinga eliphezulu, njengemoto.insulating impahlaingamelana.

For the motor winding, the insulation requirements between turns and turns, between different phases of a multi-phase motor, and between the conductor and the ground are involved. When the rated voltage of the motor is higher, the voltage of the winding insulation is also higher, which can be simply Think of this as different capacitors. If the voltage between the capacitors is too high, it will lead to the problem of capacitor breakdown, that is, the insulation failure of the motor winding to ground, between turns and between phases.

Kusukela kokuqukethwe ngenhla, singaqonda ukuthi nakuba amandla amanje e-high-voltage motor encane, i-voltage ye-insulation yama-windings iphezulu, ngakho-ke isakhiwo esikhethekile sokufakelwa kufanele sisetshenziswe ukuze kuqinisekiswe ukuthi ukusebenza kukagesi wemoto kuhlangabezana nezidingo. ; kuyilapho i-motor low-voltage, ngoba i-voltage yokushisa iphakeme kakhulu Ngakho-ke, ukukhethwa kwezinto zokuvikela i-insulating kulula, kodwa ukuminyana kwamanje, umoya omncane kanye nokukhishwa kokushisa yizici ezibalulekile zokuqinisekisa ukusebenza kukagesi wemoto. I-current kanye ne-voltage ye-motor inethonya elihlukile ku-insulating impahlafuthi kufanele kucatshangelwe ngesikhathi esifanayo.