Kodi woyendetsa dera amagwira ntchito bwanji?
Zamkatimu
Nthawi zambiri ndimapeza funsoli kuchokera kwa anthu omwe akuyamba ulendo wawo wophunzira. Mtundu uliwonse wa ophwanya dera uli ndi ntchito yake. Ma switch odziyimira pawokha amagwera m'gululi ndipo amagwiritsidwa ntchito makamaka m'makhitchini ndi malo ena omwe pangakhale chiwopsezo cha kugwedezeka kwamagetsi.
Monga lamulo, oyendetsa madera okhala ndi maulendo a shunt amagwira ntchito motere:
- Manual, ndi switch
- Makinawa, okhala ndi magetsi akunja.
Muzochitika zonsezi, amatumiza chizindikiro ku electromagnet ya switch yaikulu. Ma electromagnet amaperekedwa ndi kukwera kwamagetsi komwe kumayendetsedwa ndi shunt trip ndikuyendetsa switch yayikulu.
Ndilowa mwatsatanetsatane pansipa.
Mawu ochepa okhudza kayendedwe ka magetsi tisanayambe
Makina amagetsi apanyumba amakhala ndi tinjira tating'onoting'ono tolumikizidwa ndi gwero lamagetsi.
Dera lililonse "limafika" pachishango chachikulu, chokhala ndi zingwe ndi zowononga madera. Chifukwa chake ndikuti pamapeto pake mabwalowa samalumikizana wina ndi mnzake. Choncho, pamene dera limodzi lawonongeka kapena likuyendetsedwa ndi mphamvu zowonjezera mphamvu (monga kuzungulira kukhitchini m'nyumba), maulendo a m'zipinda zina zonse amakhalabe osakhudzidwa ndi vutoli.
Ma circuit breakers amapangidwa kuti azimitsa mphamvu panthawi yamagetsi. Amalumikizidwa ndi dongosolo lamagetsi komanso payekhapayekha ku electromagnet ndikusintha.
The breaker solenoid imayendetsedwa ndikutenthedwa kwambiri pamene magetsi ochulukirapo amadutsa mumagetsi. Panthawiyi, wodutsa dera amayenda nthawi yomweyo, zomwe zimapangitsa kuti wodutsa dera atsegulenso.
Dera lililonse limalumikizidwa mndandanda, ndipo mabwalo onse amalumikizidwa ndi magetsi molumikizana.
Kodi timatcha chiyani wophwanya dera?
Kusintha kodziyimira pawokha ndi chowonjezera chosankha chomwe chimalola kuti chowombera chachikulu chizimitsidwe ndi chizindikiro chakutali.
Chosinthira chodziyimira pawokha chimakhala ndi zinthu ziwiri zoyendetsa, pakati pomwe pali jumper yachitsulo. Chitsulocho chimakhala ndi manganese, nickel ndi mkuwa. Mapeto amodzi amalumikizana ndi nthaka ndipo mapeto ena amalumikizana ndi dongosolo lolamulira.
Chipangizocho ndi chotsutsa ndipo chimalumikizidwa mndandanda ndi mzere wolunjika (DC). Komabe, milingo yotsutsa ndi yotsika mokwanira kuti isasokoneze kuyenda kwa magetsi kudzera mumayendedwe ozungulira.
Kuchuluka kwazomwe zikuyenda kudzera mu dongosololi zitha kuyesedwa pogwiritsa ntchito voteji ndi kukana kwa shunt (lamulo la Ohm: pano = voteji / kukana).
Kusintha kodziyimira pawokha kumathanso kulumikizidwa ku zida zina monga ma PLC ndi zida zowunikira pano. Zidazi zimapanga zotsatira zina malinga ndi msinkhu wamakono omwe akuyenda kudzera mu dongosolo.
Nthawi zambiri, ma switch awa amagwiritsidwa ntchito kutseka pamanja makina amagetsi pakagwa mwadzidzidzi kapena pogwiritsa ntchito sensa.
Kodi woyendetsa dera amachita chiyani?
Kutulutsa kwa Shunt kumagwiritsidwa ntchito makamaka pakudutsa kwakutali kwa ma circuit breakers.
Nthawi zambiri, kusintha kodziyimira kumalumikizidwa ndi gulu lowongolera lomwe limalumikizidwa ndi dongosolo ladzidzidzi (ie moto). Nthawi zambiri amagwirizanitsidwa ndi machitidwe oletsa mankhwala omwe amatumiza zizindikiro zakutali ku dongosolo kuti athe kuzimitsa mphamvu.
Kusintha kwaulendo wa shunt kumakhala ndi zinthu za thermomagnetic pamapangidwe ake, zomwe sizigwira ntchito chifukwa cha kukula kwazomwe zikuyenda.
Chifukwa chiyani woyendetsa dera ndi wofunikira?
Masiwichi odziyimira pawokha amagwiritsidwa ntchito makamaka kuti azimitsa magetsi pamakina omanga.
Chomwe chimagwiritsidwa ntchito kwambiri pakusintha kwamtunduwu ndikuteteza moto. Kuti shunt trip switch igwire ntchito pankhaniyi, chowunikira utsi chiyenera kuyatsidwa. Alamu ikayambika, chosinthira chodziyimira pawokha chimatsegulidwa, chomwe chimalepheretsa zoopsa zonse zokhudzana ndi magetsi.
Kufunika kwa kusinthaku kwagona pa kuthekera kwa kugwedezeka kwa magetsi. Mwachitsanzo, ngati chowunikira utsi chilumikizidwa ndi sprinkler, chidzazimitsa magetsi. Izi zimachepetsa zoopsa zonse za kugwedezeka kwa magetsi.
Mbali yomwe imakulitsa phindu lake lalikulu ndikusintha kwamanja. Kusinthaku kumathandizira wogwiritsa ntchito kuzimitsa chowotcha chachikulu kuti achepetse ngozi pakagwa mwadzidzidzi.
Kusintha kwa shunt kumalepheretsanso kuwonongeka kwa zida zamagetsi zanyumbayo.
Kodi chodulira dera chingagwiritsidwe ntchito kuti?
Nthawi zambiri, kusintha kodziyimira pawokha sikufunikira m'magawo ambiri amagetsi.
Komabe, nthawi zambiri amafunikira:
- Zikila
- Maofesi
- Zikepe
Masinthidwe odziyimira pawokha m'khitchini ndi maofesi amagwiritsidwa ntchito makamaka pakagwa moto. Monga tafotokozera pamwambapa, chowunikira moto chikangoyamba kugwira ntchito, chosinthira chodziyimira pawokha chimazimitsa chosinthira chachikulu kuti chiteteze kuwonongeka kwamagetsi anyumbayo.
Kusintha kwadzidzidzi kwa elevator kumalumikizidwanso ndi kuzindikira moto. Pankhaniyi, cholinga cha masinthidwe onsewa ndikudula mphamvu makina opopera asanayambe kugwira ntchito, osati kungoteteza dera lalikulu.
Kuphatikiza pazimenezi, ma shunt trip circuit breakers ndi abwino kumadera omwe makina olemera ndi mafakitale amagwiritsidwa ntchito.
Kodi woyendetsa dera amagwira ntchito bwanji?
Wophwanyira wodziyimira pawokha nthawi zonse amalumikizidwa pamndandanda ndi ena ophwanya madera.
Chifukwa chosinthira chodziyimira pawokha chimakhala ndi kukana pang'ono, magetsi amayenda kudzera muzitsulo zake popanda kukhudza dera. Pazikhalidwe zabwinobwino, mutha kugwiritsa ntchito shunt kuti muyeze zomwe zikuchitika.
Electromagnets ili pansi pa chosinthira chamagetsi, kotero imatha kuyambitsidwa ndi kuphulika kwamphamvu. Kusintha kodziyimira pawokha kumatha kupangitsa kuti wophwanya dera aziyenda m'njira ziwiri:
- Ndi magetsi akunja
- Ndi ntchito kudzera pa remote switch
Muzochitika zonsezi, chosinthira chodziyimira pawokha chimatumiza chizindikiro kuti chitsegule chosinthira chachikulu mumagetsi amagetsi.
1. Mphamvu zakunja
Mphamvu zamagetsi zakunja zimagwiritsidwa ntchito pa elevator ndi ma khitchini ozungulira khitchini.
Amalandira chizindikiro kuchokera ku dongosolo lakunja (ie alamu yamoto) yomwe imafalitsidwa kuchokera ku shunt kumasulidwa kupita ku switch yaikulu. Chizindikiro ichi ndi kulipiritsa kwa electromagnet ya chophwanyira dera, chomwe chimayendetsa wophwanya dera.
Panthawi yothamanga mphamvu, woyendetsa dera akhoza kuyenda yekha, komabe, kusintha kodziyimira pawokha kumakhala ngati njira yotetezera ngati ulendo suchitika.
2. Kusintha kwakutali
Kusintha kwakutali nthawi zambiri kumakhala kunja kwa nyumbayo.
Kuti mutsegule chosinthira chodziyimira pawokha, chosinthiracho chiyenera kupezeka. Nthawi zambiri imakhala ndi batani lomwe limatumiza mphamvu yamagetsi kudzera mu waya. Choncho, mphamvu yazimitsidwa.
Zosintha zakutali zimagwiritsidwa ntchito makamaka ngati chitetezo.
Onani zina mwazolemba zathu pansipa.
- Momwe mungalumikizire chodulira dera
- Momwe mungatetezere chotenthetsera kuti chisagwetse switch
- Momwe mungakonzere chophwanyira cha microwave
Maulalo amakanema
