Zvinhu zvekuona nezve soft starters

Manyoro ekutanga chinhu chakakosha mumaindasitiri mazhinji masisitimu, achiita basa rakakosha mukudzora kumhanya uye torque yemamotor emagetsi. Nekuwedzera zvakanaka magetsi anopihwa kumota, zvinyoro zvinyoro zvinoderedza kushushikana kwemagetsi, kuderedza kunetsa kwemagetsi, uye kuderedza mukana wekukuvara kwemagetsi. Ichi chinyorwa chinoongorora zvakadzika mune izvo zvinyoro zvinotanga zvemotor, mashandisiro avanoita, mabhenefiti avo, uye inopa kuenzanisa kwakazara pakati pezvinyoro zvinotanga uye dzimwe nzira dzekutanga mota.

Soft Starter Applications uye Mashandisirwo

Magetsi akapfava ekutanga anogadzirwa kuti atore kumhanya uye torque yeAC emagetsi mota panguva yekutanga nekuvhara, inosimudzira hupenyu hurefu uye kuvimbika kwehurongwa. Ivo vanoita izvi nekuwedzera zvishoma nezvishoma voltage kumota, zvichiita kuti itange isina musono uye kudzikisira kupfeka uye kubvarura pazvinhu zvemichina semagiya nemabhengi. Uku kuwedzera kwevoltage zvishoma nezvishoma kunoenderera mberi kusvika mota yasvika kumhanya kwayo yakayerwa, panguva iyo iyo yakapfava inotangisa inochinja kune yakazara voltage. Saizvozvo, panguva yekuvhara, magetsi ekupa anodzikiswa zvishoma nezvishoma kuti adzike kusvika mota yamira zvachose, panguva iyo magetsi ekuisa anobviswa.

Nezvekushanda kwemusimboti wekunyorova kutanga, thyristor ndiyo chikamu chakakosha chinodzora mhepo. Kana gedhi pulse rinoshandiswa, rinotanga kuyerera ikozvino mune imwe nzira, inozivikanwa seyekupfura pulse. Iyo yekupfura pulse angle inosarudza chikamu cheiyo yekupinda voltage cycle inotenderwa kupfuura, kubva pa zero kusvika 180 madhigirii.

Kana uchifunga nezve nguva yekushandisa yakapfava yekutanga, inoshanda mune dzakasiyana siyana mamiriro, kusanganisira:

• Pombi masisitimu
• Conveyor mabhandi
• Fans uye akafanana mabhanhire anotyairwa masisitimu
• Crushers uye mixers
• Bypass masisitimu ezvinangwa zve redundancy

Iyo Soft Starter Inoshanda Sei?

Manyoro ekutanga anoshanda nekudzora magetsi anopihwa kumota, zvishoma nezvishoma achiwedzera kubva padanho rakaderera kusvika kune yakazara inoshanda voltage. Sezvinoratidzwa nezita rayo, inoita kuti mota itange zvinyoronyoro. Zvishandiso izvi zvakakosha mumashandisi anotyairwa nemota kudzivirira kukuvara kwemuchina uye kushushikana. Kuwedzera kwevoltage kunoitika mumatanho akagadzirirwa kune chaiyo application. Kunyangwe iyo voltage ichikwira zvishoma nezvishoma, mota inogona kuramba iine kumhanya kwakazara, panguva dzakasiyana-siyana, nekuda kwe thyristors kana mapatani eakasimba-state switch.

Ko Soft Starter Inogona Kukuvadza Mota Here?

Nekugadzira, nyoro yekutangisa inovavarira kuchengetedza mota, kuti isakonzere kukuvara. Zvisinei, ine zvimwe zvinogumira. Iyo inoshaya kukurumidza kudzora, inongodzora iyo yekuisa voltage kugovera. Pamusoro pezvo, tangi yakapfava kazhinji inoda singi yekupisa kuti itonhodze ma switch emagetsi, sezvo ichibvisa rimwe simba sekupisa. Iyo yekutanga torque yakaderedzwa, asi izvi zvinowanzo gamuchirwa kune yakaderera- kana yepakati-yekutanga torque application.

Mhando dzeSoft Starters

Zvichienderana nezvaunoda chaizvo, mhando dzakasiyana dzevatangi vanyoro dziripo:

1. Yekutanga Resistor: Inozivikanwa nekutsetseka kwekutanga, mapikisi ekutanga anopa maviri-mapoinzi kukwidziridzwa, akanakira mota dzinoda shoma torque kudzivirira kukuvara kwemuchina, senge squirrel cage motors.
2. Autotransformer: Aya anoshandisa matepi pamhepo inoshandura mhepo ine yakavakirwa-mukati inochinjika kudzora magetsi emagetsi, ichiita kuti ive yakakodzera kutanga nyeredzi kana delta-yakabatana, 3-chikamu induction motors.
3. Chikamu-Mamhepo: Yakanakira mota dzinogadzira centrifugal simba, senge dziri mumapombi, mafeni, uye zvinofuridza. Simba rinoiswa kune imwe mhepo seti kuti ibudise yakaderedzwa kutanga ikozvino uye torque.
4. Wye-Delta: Inowanikwa mushanduko yakavhurika kana yakavharwa, Wye-Delta yekutanga inogona kushandiswa chete mumamotor ane mapoinzi ekubatanidza kune yega coil inotenderera. Iwo anowanzo shandiswa muhombe bhiza uye matatu-chikamu induction motors.
5. Solid State: Inowanzo shandiswa mumaindasitiri ekushandisa, maHVAC masisitimu, magadzirirwo emidziyo, elevator, migodhi, uye nezvimwe, solid-state starters inotsiva michina yemagetsi neaya emagetsi achishandisa silicon-controlled rectifiers (SCRs).

Zvakanakira uye Zvakaipa zveSoft Starters zveMagetsi Motors

Kana zvasvika kune yemagetsi mota application, zvinyoro zvekutanga zvinopa akawanda mabhenefiti. Ivo havangodzikisire kushushikana pamota uku vachiona kuti inosvika kuzere kumhanya asiwo kuderedza mashandisirwo esimba uye kuwedzera kushanda kwehurongwa. Mune mamwe mamiriro ezvinhu, zvinyoro zvekutanga zvinenge zvakakosha.

Zvakanakira Soft Starters

1. Kuderedza Stress paMotors:
   Chakanyanya bhenefiti yevanyoro vanotanga kugona kwavo kudzikisa kushushikana pamamotor. Nekuwedzera kuwedzera voltage, ivo vanodzikisa zvese zvemakanika uye magetsi kushushikana, nekudaro vachirebesa hupenyu hwemota uye kudzikisira zvinodiwa zvekugadzirisa.

2. Lower Inrush Currents:
   Zvinyoro zvekutanga zvakare zvinodzikisira inrush ikozvino - kuwedzera kwezvino kunoitika panguva yekutanga - izvo zvinogona kukuvadza hurongwa hwemagetsi uye kusimudza mashandisirwo emagetsi. Nekudzikamisa kuvhiya uku, zvinyoro zvinyoro zvinopa imwezve yekudzivirira yemagetsi system.

3. Yakavandudzwa Simba Factor:
   Iko kukwidziridzwa zvishoma nezvishoma kunofambiswa neanotangisa akapfava kunowedzera simba chinhu, inova reshiyo yesimba rinoshanda kune inooneka simba mumagetsi system. Chinhu chakavandudzwa chesimba chinotungamira mukuderedzwa kwesimba rekushandisa, kuderera kwemitengo yesimba, uye yakanyanya kunaka system.

Zvakaipa zveSoft Starters

Nepo zvinyoro zvinyoro zvinowanzopa zvishoma zvipingamupinyi, zvine zvimwe zvinogumira kana zvichienzaniswa nekusiyana frequency drives (VFDs).

1. Kushaikwa kweSpeed ​​Control:
   Manyoro ekutanga anokunda pakudzikamisa yazvino inopihwa kumota asi kupira kugona kudzora kumhanya. Kune maapplication uko kumhanyisa kudzora kwakakosha, VFD inogona kushandiswa pachinzvimbo.

2. Yakaderedzwa Kutanga Torque:
   Yakagadzirirwa kudzivirira kushushikana kwemagetsi uye kuderedza kudiwa kwemagetsi, zvinyoro zvinotanga zvinogona kudzikisira torque panguva yekutanga. Izvi zvinogona kuve zvakakosha dhizaini kumashandisirwo anoda yakakwirira yekutanga torque, senge mitoro inorema kana yakakwira-inertia muchina. Mumamiriro ezvinhu akadaro, tangi yakapfava inogona kusapa iyo inodiwa torque yekushanda kwakanaka kwemota.

3. Nyaya Dzekubvisa Kupisa:
   Zvinyoro zvekutanga, kunyanya izvo zvinoshandisa semiconductor zvishandiso senge thyristors, zvinogadzira kupisa panguva yekushanda. Kushanda kupisa kupisa kunokosha kudzivirira kupisa uye zvinogona kukanganisa chikamu. Mumaapplication ayo ambient tembiricha kana dhizaini yakavharirwa inogona kutadzisa kupisa kupisa, nyaya dzekuvimbika uye kuderedzwa kwehupenyu kunogona kumuka. Kutonhodza kwakaringana uye kutonga kwekupisa kwakakosha kudzikamisa izvi.

Kusarudza Iyo Yakapfava Yakapfava Starter: Zvinhu Zvekufunga

Paunenge uchisarudza yakapfava yekutanga mota yako, akati wandei zvinhu zvinofanirwa kutariswa kuti uve nechokwadi chekuti unosarudza iyo yakakodzera yekushandisa kwako. Hezvino zvinhu zvikuru zvekufunga nezvazvo:

1. Kushandiswa uye Rudzi rweMota:
   • Mhando dzakasiyana dzemotor, senge induction motors kana anogara magineti mota, ane akasiyana ekutanga-up maitiro uye angangoda akasiyana akapfava ekutanga masisitimu.
   • Funga nezve mashandisirwo emota, senge pombi, mafeni, kana macrusher, sezvo aine akasiyana ebasa uye ekutanga zvinodiwa.
2. Kukura kweMotor:
   • Mahombe emotor anoda mamwe emazuva ano pakutanga uye anogona kuda hombe yakapfava yekutangisa kuti igadzirise iyo yakawedzera kudiwa kwazvino.
3. Voltage uye Zvino Zvinodiwa:
   • Ita shuwa kuti iyo yakapfava inotangisa inogona kubata voltage uye zvazvino zvinodiwa zvemota uye chero chakananga application zvinodiwa.
4. Nhamba Yekutanga paAwa:
   • Kana iyo application ichida kuwanda kwekutanga paawa, funga kuyera iyo unit yeampacity yepamusoro kubvumira kupisa kupisa kubva pakatanga kazhinji.
5. Zvinodiwa Zvekushandisa:
   • Tarisa kune chaiwo zvinodiwa senge over-current, under-voltage, kana thermal protection.
   • Sarudza kana 3-phase controlled device kana 2-phase controlled soft starter inodiwa, sezvo vane akasiyana inrush currents.
   • Funga nezve ambient tembiricha uye yakajairika derate kune yakakwirira ambient tembiricha nzvimbo.

Kuenzanisa nedzimwe Mota Kutanga Nzira:
Zvinyoro zvekutanga zvinopa zvakati wandei pamusoro pedzimwe nzira dzekutanga mota dzakadai seyakananga-on-mutsara (DOL) kutanga, nyeredzi-delta kutanga, uye inosiyana frequency drives (VFDs):

• Smooth uye inodzorwa kutanga, kuderedza kushushikana pane mechanical uye magetsi zvikamu.
• Adjustable overload dziviriro kuderedza kukuvadzwa kwemagetsi uye kugadzirisa kuvimbika kwehurongwa.
• Simba rakawanda kudarika DOL kutanga.
• Mutengo-unoshanda kune madiki mota zvichienzaniswa neVFDs.

Vagadziri vanofanira Kufunga:
Paunenge uchitenga michina yakapfava yekutanga, funga vagadziri vakaita seEaton, ABB, Toshiba:

• Eaton inopa compact, yakawanda-inoshanda, iri nyore-kuisa, uye nyore-ku-ku-program matangi akagadzirirwa matatu-chikamu kudzora mota.
• ABB inopa yakavakirwa-mukati mota dziviriro maficha, kuseta nyore, uye ekuchengetedza simba bypass sarudzo, pamwe nemhando yepamusoro senge torque control uye pombi yekuchenesa.

Zvimwe Zvishandiso:
Kuti uwane ruzivo rwechigadzirwa, maratidziro echigadzirwa, uye kurudziro yekuita, taura neSevhisi uye Tsigiro timu yemutengesi ane mukurumbira munyoro.