Kutheni kufuneka kwenziwe uvavanyo lwe-impulse olu-5 ngaphambi kokuba i-transformer isebenze?

(1) Jonga ubushushu be-transformer kunye neesekethe zayo ukuze ubone ubuthathaka okanye iziphene. Xa i-transformer engenamthwalo itsalwa, kunokwenzeka ukuvelisa ii-overvoltages ezisebenzayo. Xa indawo engathathi cala yenkqubo yamandla ingasekelwanga okanye ingasekelwanga nge-arc compression coil, i-amplitude ye-overvoltage inokufikelela kwi-voltage yesigaba ngokuphindwe ka-4-4.5; xa indawo engathathi cala isekelwe ngqo, i-amplitude ye-overvoltage inokufikelela kwi-voltage yesigaba ngokuphindwe ka-3. Ukuze kujongwe ukuba amandla e-insulation e-transformer anokumelana nempembelelo ye-voltage epheleleyo okanye i-overvoltage esebenzayo, kuyimfuneko ukwenza uvavanyo lwe-impulse ye-non-load full voltage ngaphambi kokuba i-transformer isebenze. Ukuba i-transformer kunye neesekethe zayo zinobuthathaka be-insulation, ziya kuvezwa kwi-operating overvoltage breakdown.

(2) Jonga ukuba ukhuselo lomahluko we-transformer alusebenzi kakuhle na. Xa i-transformer engenamthwalo ivuliwe, kuya kuveliswa i-inrush current, kwaye ixabiso layo linokufikelela kwi-6-8 times yamandla alinganisiweyo. I-magnetizing inrush current iqala ukuncipha ngokukhawuleza, ngokubanzi inokuncitshiswa ibe yi-0.25-0.5 times yamandla alinganisiweyo emva kwe-0.5-1s, kodwa kuthatha ixesha elide ukuba yonke i-attenuation igqitywe, malunga nemizuzwana embalwa kwii-transformers ezincinci neziphakathi, kunye ne-10-20s kwii-transformers ezinkulu, ngoko ke i-magnetizing inrush current iyancipha Kwinqanaba lokuqala, ukhuseleko lomahluko ludla ngokungasebenzi kakuhle, nto leyo ebangela ukuba i-transformer ingakwazi ukusebenza. Ke ngoko, xa i-non-load ivala, phantsi kwesenzo se-excitation inrush current, i-wiring, iimpawu kunye nokuseta ukhuseleko lomahluko kunokuhlolwa ngokwenene, kwaye uvavanyo kunye nesigqibo sokuba ukhuseleko lungasetyenziswa na lunokwenziwa.

(3) Jonga amandla oomatshini e-transformer. Ekubeni umsinga wokungenisa umoya uvelisa amandla ombane amaninzi, ukuze kuvavanywe amandla oomatshini e-transformer, kufuneka uvavanyo lokungathwali mthwalo.

Ngokwemigaqo, inani leemvavanyo zempembelelo ezingenamthwalo we-full-voltage kufuneka liqhubeke lichaphazeleka izihlandlo ezi-5 xa kuqaliswa ukusebenza kweemveliso ezintsha; emva kokulungiswa, kufuneka liqhubeke lichaphazeleka izihlandlo ezi-3. Isithuba phakathi kwempembelelo nganye singabi ngaphantsi kwemizuzu emi-5. Ngaphambi kokusebenza, kufuneka kuthunyelwe umntu kwindawo leyo ukuze ajonge i-transformer ukuze ajonge ukuba kukho na into engaqhelekanga kwi-transformer. Ukuba kukho into engaqhelekanga, umsebenzi kufuneka umiswe ngoko nangoko.

Emva kwempembelelo yokuqala, kufuneka iqhubeke isebenza imizuzu engaphezu kwe-10, kwaye impembelelo elandelayo kufuneka ilinde imizuzu engaphezu kwemi-5 ngaphambi kwempembelelo elandelayo. Ngokuphathelele isizathu sokuba imiselwe izihlandlo ezi-5, kuchaziwe kwimigaqo, kwaye uqikelelo oluthile sisigqibo esithathwe ekuqwalaselweni okubanzi kwamandla oomatshini, i-overvoltage kunye ne-excitation inrush current.