300KW Cummins Generator Program Reverse Power Protection

Thaum lub ntsiab valve ntawm lub turbine lub tshuab hluav taws xob raug kaw rau qee qhov laj thawj, lub turbine khiav tsis muaj chav.Lub sijhawm no, lub tshuab hluav taws xob dhau los ua lub tshuab hluav taws xob uas tig lub turbine rotor.Kev sib hloov ceev ceev ntawm turbine hniav yuav ua rau cua hnav poob, tshwj xeeb tshaj yog cov hniav kawg yuav ua rau overheating, ua rau turbine rotor hniav puas tsuaj.(Nws tuaj yeem nkag siab zoo li turbine hniav tiv thaiv)

Lub zog ua haujlwm: Pop = Krel (P1 + P2)

P1: Kev poob me me ntawm chav turbine hauv kev ua haujlwm rov qab, feem ntau 1% ~ 4% ntawm lub zog ntsuas

P2: poob me me thaum lub tshuab hluav taws xob khiav ntawm lub zog rov qab, feem ntau P2∞(1-n)Pgn(n: generator efficiency, Pgn: lub tshuab hluav taws xob ntsuas fais fab)

Krel: Kev ntseeg tau coefficient, thaj tsam 0.5-0.8.

Feem ntau (0.5% ~ 2%) lub tshuab hluav taws xob ntsuas lub zog, raws li cov cuab yeej tiv thaiv ntsuas thaum lub ntsiab valve kaw lub hwj chim tus nqi.

Txhawm rau tiv thaiv lub tshuab hluav taws xob los ntawm dheev disconnecting lub ntsiab Circuit Court breaker yam tsis tau kaw tag nrho lub ntsiab li qub nyob rau hauv ib tug tej yam active hwj chim, turbo generator yuav tshwm sim overspeed thiab overspeed xwm txheej.Txhawm rau kom tsis txhob muaj xwm txheej zoo li no, lub tshuab hluav taws xob lub ntsiab valve yuav tsum raug kaw tom qab qee yam kev tiv thaiv (tsis muaj kev tiv thaiv sib nqus, tawm ntawm cov kauj ruam tiv thaiv, lub tshuab hluav taws xob dej txiav tawm, lub ntsiab transformer txias tsis ua hauj lwm, kev tiv thaiv lub cav kub, thiab lwm yam).Siv rau qhov tsis ua haujlwm luv luv.Tom qab lub tshuab hluav taws xob rov qab fais fab relay ua haujlwm, qhov kev sib txuas nrog lub ntsiab valve kaw yuav tsim ib qho "thiab" qhov rooj, thiab qhov kev pab cuam rov qab fais fab kev tiv thaiv yuav raug tsim tom qab lub sij hawm luv luv, thiab tag nrho cov nres yuav tshwm sim tom qab ua haujlwm.

Main valve auxiliary contact, qhib lub qhov hluav taws xob tiv thaiv tom qab lub ntsiab valve raug kaw, pib lub tsev qhov kev pab cuam mus txawv tebchaws tom qab ib tug luv luv ncua.

Action zog: tib yam li thim rov qab lub zog tiv thaiv tus nqi.

Tawm hom: ncua 1.0-1.5s ua haujlwm, txhua qhov nres.

Txhawm rau tiv thaiv lub tshuab hluav taws xob los ntawm dheev disconnecting lub ntsiab Circuit Court breaker yam tsis tau kaw tag nrho lub ntsiab li qub nyob rau hauv ib tug tej yam active hwj chim, turbo generator yuav tshwm sim overspeed thiab overspeed xwm txheej.Txhawm rau kom tsis txhob muaj xwm txheej zoo li no, lub tshuab hluav taws xob lub ntsiab valve yuav tsum raug kaw tom qab qee yam kev tiv thaiv (tsis muaj kev tiv thaiv sib nqus, tawm ntawm cov kauj ruam tiv thaiv, lub tshuab hluav taws xob dej txiav tawm, lub ntsiab transformer txias tsis ua hauj lwm, kev tiv thaiv lub cav kub, thiab lwm yam).Siv rau qhov tsis ua haujlwm luv luv.Tom qab lub tshuab hluav taws xob rov qab fais fab relay ua haujlwm, qhov kev sib txuas nrog lub ntsiab valve kaw yuav tsim ib qho "thiab" qhov rooj, thiab qhov kev pab cuam rov qab fais fab kev tiv thaiv yuav raug tsim tom qab lub sij hawm luv luv, thiab tag nrho cov nres yuav tshwm sim tom qab ua haujlwm.

Main valve auxiliary contact, qhib lub qhov hluav taws xob tiv thaiv tom qab lub ntsiab valve raug kaw, pib lub tsev qhov kev pab cuam mus txawv tebchaws tom qab ib tug luv luv ncua.

Action zog: tib yam li thim rov qab lub zog tiv thaiv tus nqi.

Tawm hom: ncua 1.0-1.5s ua haujlwm, txhua qhov nres.

Generator thim rov qab kev tiv thaiv hluav taws xob (hluav taws xob mus ncig)

Kev tiv thaiv hluav taws xob rov qab yog ib hom kev tiv thaiv hluav taws xob relay, uas yog siv los tiv thaiv lub tshuab hluav taws xob turbine los ntawm kev ua haujlwm txawv txav thaum lub zog ua haujlwm rov qab.

Lub hauv paus ntsiab lus yooj yim ntawm kev tiv thaiv hluav taws xob rov qab yog los tsim lub AC ntsuas Circuit Court ntawm lub hwj chim kev taw qhia relay raws li lub hauv paus ntsiab lus ntawm kev sib piv tus nqi, thiab AC voltage forming circuit txais txoj kev sib txuas thiab qhov sib txawv, thiaj li yuav tau txais ob qho hluav taws xob sib piv: sum voltage vector A1 thiab qhov sib txawv voltage vector A2.Thaum lub tshuab hluav taws xob nyob rau hauv ib txwm ua haujlwm, A2.Thaum lub tshuab hluav taws xob lub tshuab hluav taws xob tau kaw tam sim ntawd, lub zog ntawm lub tshuab hluav taws xob yog absorbed los ntawm lub kaw lus thiab qhov kev txiav txim siab ntau dua li tus nqi braking.Thaum A2> A1, relay nkaus, tom qab qee qhov qeeb, lub tshuab hluav taws xob txiav.Kev tiv thaiv hluav taws xob rov qab kuj muaj rau cov kev pab cuam pib lub ntsiab lus.

Dingbo muaj ntau yam tsiaj qus generators: Volvo / Weichai / Shangcai / Ricardo / Perkins thiab lwm yam, yog tias koj xav tau pls hu rau peb

DINGBO lub zog

www.dbdieselgenerator.com

Mob.: +86 134 8102 4441

Xov tooj: +86 771 5805 269

Fax: +86 771 5805 259

Email: dingbo@dieselgeneratortech.com

Skype: +86 134 8102 4441

Ntxiv: No.2, Gaohua Road, Zhengxin Science thiab Technology Park, Nanning, Guangxi, Suav.