Yintoni ekufuneka ithathelwe ingqalelo xa ulungelelwaniso olulinganayo lwengqokelela yejenereyitha?
I-Quasi-simultaneous association yinkqubo yezandla.Nokuba umsebenzi ulungile okanye ngenye indlela unobambiswano olukhulu kunye namava omsebenzisi.Ukuze kuthintelwe ukudibanisa ngamaxesha ahlukeneyo, ukubambelela kwiimeko ze-3 akuvumelekanga ukuvala.
1. Xa incam yetafile yongqamaniso itsiba, ayivunyelwa ukuba ivale, ngenxa yokuba kunokubakho imvakalelo yetape ngaphakathi kwetafile yongqamaniso, engakwazi ukubonisa iingxaki ezihambelanayo ezifanelekileyo.
2. Xa itheyibhile ngaxeshanye ijika ngokunjalo ngokukhawuleza, oko kubonisa ukuba umahluko phakathi kwejenereyitha elungele ukunxulunyaniswa nenye ingqokelela yejenereyitha inkulu kakhulu.Ngenxa yokuba ixesha lokuvala i-breaker circuit kunzima ukuyiqonda, i-breaker circuit ayivalwanga ngokuqhelekileyo kwindawo yokuvumelanisa.Ayivumelekanga ukuvala.
3. Ukuba incam yetafile yokuvumelanisa iyeka kwindawo yokudibanisa, ayivumelekanga ukuvala iswitshi xa iyeka.Oku kwenzeka ukuba i-frequency yesinye i-generator iseka utshintsho ngokukhawuleza ngexesha lenkqubo yokuvala i-breaker, kunokwenzeka ukuba i-breaker ivale kwi-non-synchronized factor.
4. Indlela yokubuyisela umva imvakalo yamandla enkqubo enxuseneyo?
Xa iiseti zejenereyitha ezi-2 zidityanisiwe ngaphandle kweetoni, kuya kubakho ingxaki yomahluko wefrikhwensi kunye nomahluko wombane phakathi kweengqokelela ezimbini zejenereyitha.Kwaye kwizixhobo zokubeka iliso (i-ammeter, imitha yamandla, imitha yesixhobo samandla) kuzo zombini iinkqubo, imeko yokwenyani yamandla ebuyela umva ibonakalisiwe, enye ingamandla angasemva abangelwa sisantya esingaqhelekanga (isiqhelo), kwaye enye ibangelwa ngumahluko wombane. .Umsebenzi oguqulweyo, ukuguqulwa kwawo kuhambelana noku:
1. Ukuguqulwa kwesenzeko samandla esingasemva esibangelwa yi-frequency: ukuba ii-frequencies ze-systems ezimbini azilingani, kunye nokwahlukana kukhulu, kuya kuboniswa kwisixhobo (i-ammeter, imitha yamandla), i-current of the current. isixhobo esinesantya esiphezulu sibonisa ixabiso elilungileyo, kunye nemitha yombane ibonisa ixabiso elilungileyo.Amandla, kwelinye icala, akhoyo abonisa ixabiso elibi, kwaye amandla abonisa ixabiso elibi.Okwangoku, tshintsha ireyithi (i-frequency) yenye yeeyunithi, kwaye uyitshintshe ngokwesalathisi semitha yamandla, kwaye utshintshe uphawu lwemitha yamandla ukuba lungabikho.Yenza izikhombisi zamandla kuzo zombini iiyunithi akukho, ukwenzela ukuba imilinganiselo yokujikeleza (isiqhelo) yezixhobo zombini iyafana.Nangona kunjalo, xa i-ammeter isabonisa ngoku, le yimeko yamandla ebuyela umva ebangelwa ngumahluko wombane.
2. Ukuguqulwa kwesiganeko samandla esingasemva esibangelwe kukuhlukana kwamandla ombane: xa iimpawu zemitha yombane yeeseti ezimbini zejenereyitha zingekho zombini, kwaye i-ammeter isenayo isalathiso sangoku (oko kukuthi, enye inverted kunye nesalathisi esithandekayo), amandla ombane. uhlengahlengiso phakathi kweeseti zejeneretha zinokulungiswa ngokutsha.Xa utshintsha iqhoshana, kuxhomekeke kwisalathiso se-ammeter kunye nenkalo yamandla.Ukuphelisa uphawu lwe-ammeter (oko kukuthi, lulungelelanise ukuba lungabikho ngokupheleleyo).Emva kokuba i-ammeter ingenalo uphawu, lungisa umba wamandla kwi-lag enkulu kuno-0.5 ngokuxhomekeke kuphawu lwesixhobo sokulinganisa amandla.Ngokuqhelekileyo, inokulungelelaniswa malunga ne-0.8, elona lizwe lihle kakhulu.
5. Isekethe yokhuseleko yejenereyitha
1. Amandla okubuyisela umva Imvakalelo yamandla ebuyela umva iziswa ngumahluko kwireyithi (isiqhelo) kunye nombane woqokelelo lwejeneretha, oko kukuthi, ingqokelela yejeneretha enye inamandla afanelekileyo, ngelixa enye inqokelela inamandla angalunganga.Oko kukuthi, inkqubo enegunya elibi iza kuba yitoni okwangoku (i-frequency yale nkqubo iphantsi kwaye izinga lokujikeleza alihambisani).Xa i-voltages ingafani, inkqubo ene-voltage ephezulu ngokuqinisekileyo iya kunika amandla ombane ophendulayo kunye ne-reactive yangoku kwisixhobo esinombane oncitshisiweyo (i-ammeter yale yunithi ibonisa indlela evumayo), nto leyo eyongeza inkqubo yokulawula isigaba inkqubo yonikezelo lwamandla.Iyunithi ene-voltage ephantsi iphelela ekubeni ngamaqashiso amakhulu ngeli xesha, ifumana umsinga omkhulu osebenzayo ukugcina ulungelelwaniso lombane lweeyunithi ezimbini (i-ammeter yale nkqubo ibonisa indlela eya umva).Xa ucupha, lungisa i-voltage yeyunithi ethile enkulu okanye yehlisa i-voltage yenye inkqubo, ebangela ukuba isixhobo sibe namandla aguqukayo akhoyo, kwaye ukusebenza kwawo kwangoku kunento yokwenza ne-20% ye-reverse ekhoyo.Isilayidi samandla esingasemva siyabaleka, iihambo, kunye nee-alam, kodwa akayeki.
2. I-Overcurrent: Amandla alinganisiweyo esethi yejeneretha yangoku aqinisekile, kwaye umthamo wayo ogqithisiweyo uphantsi kakhulu, ngokubanzi malunga ne-5% yamandla ahleliweyo.Ixesha elivunyelweyo lokulayisha li-15 ~ 30 imizuzu, kwaye kwakhona ubuninzi abukho ngaphezu kwemizuzu engama-60.Isethi yejeneretha iya kufudumala, kwaye kwakhona i-insulation yentambo ngokuqinisekileyo iya kuncitshiswa, eya kunciphisa ubomi benkonzo.Ngenxa yeso sizathu, ukuba akukho mfuneko ekhethekileyo xa kusekwa i-overcurrent defense, ukukhuselwa kwe-overcurrent kunokusetwa kwi-110% ye-current rated current.Kulo lonke uvavanyo lomthwalo, zisa i-current kwi-110% ye-current rated current, kunye ne-overcurrent relay ngokuqinisekileyo iya kusebenza.Uhambo, inkqubo ye-alam, akukho kuvalwa.
3. Umbane ogqithisileyo: Xa iiseti zejenereyitha zisetyenziswa ngokufanayo, enye yezona zinto zoyikayo kukuba isixokelelwano sobonelelo lwamandla ngokuqinisekileyo siya kujikeleza.Ngokukhawuleza ukuba i-voltage ye-oscillating system inyuka, kulula ukuqalisa ukuchithwa kwe-insulation phantsi kwezixhobo zombane kunye nezixhobo zokubonelela umbane, kunye nezixhobo zokubonelela ngombane kunye nezixhobo zombane ziya kuba zingenakunyakaziswa kunye nomnye.Kule njongo, iiseti zejeneretha ezisetyenziswe ngokuhambelanayo zixhotywe ngokhuseleko lombane, kwaye ixabiso layo lokuseta liyi-105% yombane olinganisiweyo yeyona isebenzayo.I-short-circuit over-voltage relay, uhambo kunye nokuyeka, isenzo se-alam.
Ixesha lokuposa: Dec-30-2022