Unobangela wokuNgaphantsi kombane weSeti yeJeneretha yeCummins

Januwari 09, 2022

Kule mihla, ngenkqubela phambili eqhubekayo yesayensi kunye nobuchwepheshe, iintsilelo zazo zonke iintlobo zezixhobo ziye zasonjululwa.Iijeneretha zeCummins eziqhelekileyo, umzekelo, zinokusetyenziswa kuphela kwiilori ezinkulu neziphakathi.Oku ikakhulu ngenxa yokuba umthamo iseti yemveli generator, bulky, ingxolo, vibration izizathu eziphezulu, ukuze index yayo amandla ayilunganga njengoko injini yepetroli, ukuze ukusetyenziswa Cummins generator iseti ilinganiselwe kuluhlu encinane kakhulu.Ngokungeniswa kwetekhnoloji ephezulu, iseti yemveli ye-Cummins generator iye yaphuculwa kakhulu, iintsilelo ezikhoyo ziye zaba sisisombululo esihle kakhulu, ukuqhubela phambili kobugcisa obutsha, ukuze Cummins generator iseti isicelo scope iyaqhubeka ukukhuthaza.


  Cause of Undervoltage of Cummins Generator Set


【Uhlalutyo lokusilela kwijeneretha yeCummins】

1. Ukulawula ukungaphumeleli kwentambo okanye ukukhulula, isisombululo: jonga ukulungiswa kocingo okanye ukutshixa.

2. ukuqala ukusilela kwemoto, isisombululo: buyisela i-motor yokuqalisa.

3. Isethi yejenereyitha ye-diesel iqala ngokungafanelekanga.Isisombululo: Qala ngokwemiyalelo.

4. Ukusilela kwe-injini yokuqalisa i-relay, isisombululo: buyisela i-relay yokuqalisa.

5. i-diesel generator start / stop switch switch failure, isisombululo: buyisela isiqalo sokumisa iswitshi.

6. Ijeneretha ye-diesel iqala i-motor encedisayo yokuguqulela impazamo yombane, isisombululo: buyisela isiqalo soguqulelo lombane oluncedisayo.


【Iseti yejeneretha yeCummins eqhelekileyo uhlalutyo lokungena kombane】

1. Ukulawulwa kwesantya soomatshini beseti yejeneretha yeCummins

Ijenereyitha Amanqaku okulawula isantya, ulawulo lwesantya sombane kunye nolawulo lomatshini, ukuba ngummiselo wesantya soomatshini, ngoko kwiseti yejeneretha inolawulo lweoyile kunye nomzimba wempompo yeoli, kubonakala ngathi kubizwa ngokuba yimpompo kaloliwe eqhelekileyo, enentonga yokutsala, lawula ioyile, yibize intonga yokulawula isantya, isantya sokulawula intonga (isantya esiphezulu) kumacala omabini okuhanjiswa kwe-plunger plunger kunye nolawulo lwesantya, itshintshelwe kwi-20 s iphantsi kombane, andazi nokuba i-voltage kunye nefrequency inazo. ayiphakamanga, ukuba ayikhange iphakame, inokubangelwa kukuba isantya asiphakamanga, ungahlengahlengisa intonga yesantya ukuze uzame, nanini na xa ukusilela kweqela lejeneretha, kukho eyona mpazamo inkulu, eyona mpazamo iphambili isonjululwe, kwaye uthotho lweziphoso zesibini ezibangelwa yiyo ziya kusonjululwa.

2, ukuhlala

Ukuba i-generator ayinayo i-remanence, inkqubo ye-voltage ye-generator ayikwazi ukwakhiwa ekuqaleni.Kule ngxaki, kufuneka sazi ukuba yi-V engakanani i-voltage ye-excitation ye-jenereyitha ye-AVR yokulawula amandla ombane, kwaye emva koko udibanise umthombo ohambelanayo wombane kumgca wokukhupha i-excitation ye-magnetization (uhlobo lombane kufuneka luhambelane, kwaye i-polarity akufanelekanga. buya umva).

3. Umgca wesampula wombane ukhululekile

Oku kulula ukuyiqonda, umgca wesampulu yombane ukhululekile, ekufuneka ingakwazi ukulinganisa umbane.

4. Uxinzelelo olulawula ukusilela kwepleyiti

Ngenxa yokutshintsha kwezinto zokusingqongileyo, iiparameters ze-AVR i-clamp adjustable azisasebenzi, kufuneka zilungelelanise, ngokubanzi, indlela ye-weaver generator ngokusisiseko ayiyi kubonakala ngolu hlobo lwengxaki, kuba iparameters ye-clamp adjustable fixed. ixabiso (400 v), ngokuqhelekileyo siyahlengahlengiswa, isetyenziselwa kuphela iyunithi yokuluki inokuvela ngolu hlobo lwengxaki, Kuba kwi-AVR i-clamp adjustable kunye nomatshini ihlengahlengiswa ngokwe-voltage ye-bhasi-bar, ayikho static, ngeli xesha, izixhobo ze-weaver ngokuqhelekileyo zinesignali yokulawula uxinzelelo kwi-AVR i-clamp adjustable, olu hlobo lwemeko okanye ukhangele umqondiso olawulayo ukuba kukho nayiphi na into engalunganga, okanye uzame i-boot ngokukhawuleza usebenzisa isixhobo sokulawula i-electronic (weaver, i-clamp adjustable, njl.) phinda usethe i-voltage.

5. Ukwenza impazamo

Ukuba umgca usekelwe kwisigaba sesithathu, ngoko i-voltage kunye ne-current iphantsi kakhulu, ngeli xesha ukujonga isixhobo sokukhupha umhlaba (njengommese womhlaba) awuvaliwe okanye uphantsi.

I-6, i-generator ejikelezayo i-varistor okanye i-rectifier bridge diode umonakalo

Impazamo ye-varistor overvoltage yenzeka nge-varistor conduction kunye nokuhla, ukophuka okanye ngenxa yezinye izizathu ukuba i-varistor iyaqhuba, ke kuyacingeleka ukuba i-voltage iphantsi kakhulu, kukho ibhulorho yokulungisa i-diode emithandathu, ukusetwa kwamandla e-dc ukubonelela nge-clamp ehlengahlengiswayo kunye isixhobo sokuvuselela, esifana nokuba ibhulorho yesilungisi se-diode yonakele, ibamba elinohlengahlengiswayo kunye nesiphumo sesixhobo sovuselelo njengoko siya kuthotywa.


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