Yiziphi Izinzuzo Zokuvikela Zesethi Yejeneretha Ye-Diesel Ethule

I-genset ethule zinganciphisa umsindo futhi zithandwa kakhulu ezindaweni zokuhlala, ezibhedlela nakwezinye izindawo.Eminyakeni yamuva nje, imakethe yamajeneretha edizili athule isilokhu ifuna kakhulu.Ake sibheke amajeneretha kadizili athule ngezansi.Izinzuzo eziyishumi zokuvikela.

1. Ijeneretha ye-diesel ethule yokuvikela ukulahlekelwa-kwe-excitation.

Ukuvikelwa kokulahlekelwa kwe-excitation kusetshenziswa njengesivikelo sephutha lokulahlekelwa-yi-excitation lapho i-excitation current ye-generator yehla ngendlela engavamile noma inyamalala ngokuphelele.Yakhiwe ngemibandela efana ne-excitation low voltage Ufd(P), i-voltage ephansi yesistimu, i-static impedance, ukunqanyulwa kwe-TV okunenani lokusetha lishintsha ngokuzenzakalelayo ngamandla asebenzayo, asebenza ngokusayina kanye nokususa isasasa ngokulandelana.Kokubili umbandela we-voltage ephansi ye-Ufd(P) ye-excitation ephansi kanye nesimiso sokuvimba ukuzinza kuhlobene nomngcele ozinzile, ongathola ukuthi ijeneretha ilahlekelwa ukuzinza kwayo okumile ngenxa yokulahlekelwa injabulo.Umgomo wokuzinza omile usebenza emngceleni wokuzinza omile ngemva kokulahlekelwa yizibuthe.

2. Thulisa ijeneretha ye-diesel ukuvikela ukuvuthwa ngokweqile.

Ukuvikelwa kwe-overexcitation kuyisivikelo esibonisa ukuminyana kazibuthe okudlulele kwe-iron core okubangelwa ukuncishiswa kwefrikhwensi ye-generator noma i-voltage eyeqile.Ukuvikelwa kwe-overexcitation kuhlukaniswe ngezilungiselelo eziphakeme neziphansi.Isilungiselelo esiphansi sithumela isignali ngemva kokulibaziseka okuhleliwe kwe-5s futhi kunciphisa i-voltage yokuvusa (umsebenzi wokunciphisa i-voltage evuselelayo kanye ne-excitation current ayisetshenziswa okwesikhashana), futhi ukulungiselelwa okuphezulu kusebenza ekulayisheni ngemuva komkhawulo wesikhathi esiphambene.I-Demagnetization.Umkhawulo ongaphezulu wokulibaziseka kwesikhathi esiphambene amasekhondi angu-5, futhi umkhawulo ophansi amasekhondi angu-200.

3. Ijeneretha ye-diesel ethule yokuvikela i-stator grounding.

Isivikelo se-Generator stator grounding sisetshenziswa njengesivikelo se-generator stator yesigaba esisodwa sokuvikela amaphutha.Iqukethe izingxenye ezimbili: ingxenye eyisisekelo ye-voltage elandelanayo enguziro kanye ne-harmonic voltage yesithathu.I-voltage eyisisekelo yokulandelana kukaziro ivikela ukuma kwe-stator yesigaba esisodwa endaweni engama-95% ukusuka ekugcineni komshini kuya emsileni womshini.Iphutha lesisekelo lakhiwe ngokubonisa isimiso sevoltheji ye-zero-sequence ekugcineni kwejeneretha, esebenza ekunqanyulweni kozibuthe ngemva komkhawulo wesikhathi ongu-t1 (3s);i-voltage yesithathu ye-harmonic ivikela iphutha lesigaba esisodwa sokumisa i-stator kusuka kumsila we-generator kuya ku-30% wokuphela kwe-generator.Iphuzu elingathathi hlangothi lejeneretha kanye nesimiso sesithathu se-harmonic ekugcineni kwe-generator kwakhiwa, futhi senze isignali ngemva komkhawulo wesikhathi we-t2 (5s).Okubili kwakha ukuvikelwa okungu-100% kwe-stator grounding.Isivikelo sifakwe ilokhi yokunqanyulwa kwe-PT.

4. Thula ukuvikelwa kwe-diesel generator stator turn.

Ukuvikelwa kwakhiwe ivolthemu yokulandelana eyiziro ye-longitudinal kanye nesimiso sokulandelana esinegethivu sengxenye yephutha.Izinyathelo zokuvimbela ukunqanyulwa kwe-PT zisethwa njengesivikelo esiyinhloko sokujika kwangaphakathi kwejeneretha kanye nesifunda esifushane sesigaba kanye nokushisela okuvulekile kwe-stator winding.Umbandela wokulandelanisa ongemuhle wengxenye yephutha uyaphasiswa Ukuthola amandla alandelanayo anegethivu agelezayo aphuma kujeneretha ukuze kubonakale inkomba yevoltheji ye-longitudinal eyiziro elandelanayo itholwa ngokuthola ukuphuma kwe-longitudinal 3UO nge-3PT open delta winding lapho iphuzu layo lokungathathi hlangothi liqondile. ixhunywe endaweni engathathi hlangothi yejeneretha kodwa ingagxiliwe.Isenzo sokuvikela simi ngokugcwele.

5. Ijeneretha yedizili ethule yokuvikela ngaphandle kwesinyathelo.

Isivikelo sisebenzisa isici esine-impedance emithathu ukuze kutholwe inani lezigxobo ezishelelayo futhi kunqume indawo yesikhungo se-oscillation ngoshintsho lwe-impedance trajectory.Endabeni yephutha le-short-circuit, i-oscillation yesistimu, ukunqanyulwa kwesekethe ye-voltage, njll., ukuvikela ngeke kusebenze kabi.Ukuvikelwa ngokuvamile kusebenza kusignali;lapho isikhungo se-oscillation singaphakathi kweqembu le-generator-transformer, isigaba sokuvikela ngiyasiqala futhi sithumele umyalo wohambo nge-t1 (0.5s), esebenza ngokususa isasasa;lapho isikhungo se-oscillation singaphandle kweqembu le-generator-transformer, ukuvikelwa Ukuqala kwesigaba II kusayinwe ku-t2(2s).Idivayisi yokuvikela ifakwe idivayisi yamanje evimbelayo ukuze kuqinisekiswe ukuthi i-current ayidluli isilinganiso sokuphuma ngaphandle kwesinyathelo samanje se-circuit breaker uma i-circuit breaker ivaliwe.

6. Ukuvikela okuqongelelwe kwemvamisa ephansi kumajeneretha athule edizili.

Ukuvikelwa kokunqwabelana kwefrikhwensi ephansi kusabela kumthelela oqoqiwe wemvamisa encishisiwe yesistimu ku-turbine yesitimu.Isivikelo siqukethe i-relay ezwelayo yamafrikhwensi kanye nekhawunta, futhi ivinjwe ukuthintana okuyisizayo kwe-outlet circuit breaker (okungukuthi, ukuvikelwa kokunqwabelana kwefrikhwensi ephansi nakho kuyaphuma lapho i-generator iphuma ekusebenzeni), futhi i-cumulative system frequency iphansi Uma imvamisa isethwe ku-47.5 Hz, lapho isikhathi esiqoqiwe sifinyelela inani elimisiwe lamasekhondi angu-3000, isignali izothunyelwa ngemva kokulibaziseka kwamasekhondi angu-30.Idivayisi ingaqashelwa ngesikhathi sangempela ngesikhathi sokusebenza: inani elingaguquki, imvamisa f kanye nesibonisi sesikhathi esiqoqwayo.

7. Thulile ijeneretha ye-diesel excitation circuit ukuvikelwa kokulayisha ngokweqile.

Ukuvikelwa kokugcwala kwesekethe ye-excitation kusetshenziselwa ukuvikela isekethe ye-rotor excitation kusukela ku-overcurrent noma ukulayisha ngokweqile.Ixhunywe ohlotsheni lwezigaba ezintathu futhi iqukethe izingxenye ezimbili: isikhathi esiqondile kanye nomkhawulo wesikhathi ophambene.Ukusebenza kwamanje kwengxenye yesikhathi esiqondile isethwe ngokuya ngesimo sokuthi ingabuyiswa ngokuthembekile ngaphansi kwesilinganiso esiphezulu samanje sokusebenza okuvamile.Ngemuva komkhawulo wesikhathi we-t1 (5s), usebenza esignali futhi unciphisa ukuvuthwa kwamanje (umsebenzi wokunciphisa umfutho we-excitation awusetshenziswa);isici sesenzo sengxenye yesikhathi esiphambene sihambisana nejeneretha Amandla okulayisha ngokweqile okujikajika okuvusa amadlingozi ayanqunywa, futhi isenzo sokuvikela sisekususeni amandla nokususa isasasa.Umkhawulo ophezulu womkhawulo wesikhathi ophambene amasekhondi angu-10.

8. Iphuzu elilodwa lokuvikela isisekelo serotha yejeneretha yedizili ethule.

I-generator rotor yokuvikela indawo eyodwa yephuzu elilodwa isetshenziselwa ukukhombisa iphutha lendawo elilodwa le-generator rotor circuit.Ukuvikelwa kusebenzisa umgomo wokushintshwa kwe-ping-pong.Ama-voltage aphansi futhi angalungile omjikelezo we-rotor athathwa njengesampula ngokushintshana, futhi ukumelana ne-rotor grounding kubalwa ngesikhathi sangempela ngokuxazulula izilinganiso ezimbili ezihlukene ze-loop yomhlabathi.Futhi indawo yokubeka phansi.Ukuvikelwa kuzosebenza kusiginali ngemva kokulibaziseka kwamasekhondi angu-2.

9. Ukuvikelwa kokulayisha ngokweqile kwamajeneretha edizili athule.

Idivayisi yokuvikela yakhiwe izingxenye ezimbili: isikhathi esiqondile kanye nomkhawulo wesikhathi ophambene.Ingxenye yesikhathi eqondile isebenza kusiginali ngemva komkhawulo wesikhathi wamasekhondi angu-5.Isici sesenzo sesikhathi esiphambene sinqunywa ngokwamandla ejeneretha okumelana namandla amanje agcwala kakhulu, futhi isenzo sisekususeni ukulayisha.Idivayisi yokuvikela ingabonisa inqubo yokuqongelela ukushisa kwe-generator stator.

10. Ukuvikela ukulayishwa kokulandelana okungalungile kwamajeneretha edizili athule.

Idivayisi yokuvikela yakhiwe izingxenye ezimbili: isikhathi esiqondile kanye nomkhawulo wesikhathi ophambene.Isenzo samanje esinqunyiwe somkhawulo wesikhathi sisethwa ngokuya ngevelu yamanje yokulandelana kwenegethivu yesikhathi eside ye ijeneretha kanye nenani lamanje eligwema ukungalingani kwesihlungi samanje sokulandelana okunegethivu ngaphansi komthwalo omkhulu.Owesibili usebenza esignali.Isici sesenzo sesikhathi esiphambene sinqunywa ngokuvumelana nekhono lejeneretha ukumelana namandla amanje alandelanayo, futhi isenzo sisekususeni isasasa nokususa isasasa.

Uma ufuna ukwazi okwengeziwe ngamajeneretha edizili, wamukelekile ukuthintana nge-imeyili dingbo@dieselgeneratortech.com.