Shenhai Explosion-Ubungqina
Ubushushu obuphezulu bokufudumeza bamacandelo anokunxibelelana nemixube yerhasi-moya enokutsha kukhuseleko olwandisiweyo lwezixhobo zombane luyinto ebalulekileyo ekumiseleni ukhuseleko lobungqina bokudubula kwezixhobo zombane.. Amacandelo aphetheyo ngoku, ngokukodwa amacandelo amandla afana ne-windings kunye nezinto zokufudumeza, sebenza njengemithombo yobushushu kwisixhobo sombane.
Ubushushu obuphezulu bokufudumeza akufuneki budlule ubushushu bomda wezixhobo zombane ezikhuselekileyo. Igama elithi ‘umlinganiselo wobushushu’ ibhekisa kobona bushushu buphezulu buvumelekileyo be izixhobo zombane ezingaqhushumba, elona qondo lisezantsi lobushushu elimiselwe yiklasi yobushushu besixhobo kunye neqondo lobushushu apho izinto ezisetyenziswayo zifikelela kuzinzo lwe-thermal.. Lo mda wobushushu yi “umda” ukuqinisekisa ukusebenza kokhuseleko olungaqhushumba ukwanda kokhuseleko iimveliso zombane. Ukuba ubushushu obuphezulu bokufudumeza budlula ubushushu obumiselweyo, inokutshisa ehambelanayo qhuma i-gas-air umxube okanye umonakalo owenziwe ngoomatshini kunye nombane wezinto ezisetyenzisiweyo. Umzekelo, kwii-windings ezigqunyiweyo, iqondo lobushushu elizinzileyo elingaphaya kozinzo lobushushu linokubunciphisa ngesiqingatha ubomi balo kulo lonke unyuka lwe-8-10°C.
Kwii-winding ezigqunyiweyo, ubushushu bawo obukhulu bokufudumeza akufuneki budlule umgangatho obekiweyo etafileni.
Umlinganiselo weqondo lobushushu leeWindings ezigqunyiweyo
| Iimpawu zeempawu | Indlela yokulinganisa ubushushu | Inqanaba lokuchasa ubushushu kwiZixhobo zokuKhusela | ||||
|---|---|---|---|---|---|---|
| - | - | A (105℃) | E (120℃) | B (130℃) | F (155℃) | H (180℃) |
| Obona bushushu buphezulu ngeXesha lokuSebenza okuRayilwayo/℃ | ||||||
| I-Single Layer Insulated Winding | Indlela yokuNchasa okanye indlela yeThermometer | 95 | 110 | 120 | 130 | 155 |
| Ezinye ii-Insulated Windings | Indlela yokuchasa | 90 | 105 | 110 | 130 | 155 |
| Ezinye ii-Insulated Windings | Indlela yeThermometer | 80 | 95 | 100 | 115 | 135 |
| Ubushushu obugqithisileyo ngexesha lokuhlala/℃ | ||||||
| Ubushushu obugqithisileyo Ekupheleni kwexesha le-TE | Indlela yokuchasa | 160 | 175 | 185 | 210 | 235 |
Kubaqhubi abaphethe umsinga wombane, kwiqondo lokushisa eliphezulu lokufudumeza, amandla omatshini wezinto eziphathekayo akufanele ancitshiswe, akufuneki kubekho deformation ngaphaya koko kuvunyelwa uxinzelelo oluvumelekileyo, kunye nezinto zokugquma ezikufutshane akufanele zonakaliswe. Njengokuba, kwimeko yokhuseleko olwandisiweyo lweemotor ze-asynchronous phase ezintathu, ukushisa kwe-rotor yokufudumala akuyi kulimaza ukufakwa kwe-stator windings.
Kuyilo lwe ukwandisa izixhobo zombane zokhuseleko, ukuthintela amacandelo athile’ amaqondo obushushu angaphezulu komlinganiselo wawo wobushushu obumiselweyo, abaqulunqi kufuneka bacinge ngokubandakanya izixhobo ezifanelekileyo zokukhusela ubushushu, ukongeza ekusebenzeni kombane kunye ne-thermal yamacandelo ombane, ukuthintela ubushushu obungaphaya komlinganiselo wabo wobushushu.