Mīkini uila uila

Mīkini uila uila

Hāʻawi ka mana kaʻa kaʻa o ABB o nā switchgears i ka mana palekana a hilinaʻi hoʻi no nā mīkini a me nā mea hana ma ka hapa nui o nā ʻāina a puni ka honua ma o ka polokalamu hoʻohui, lako a me nā lawelawe. Loaʻa iā ia nā makahiki he nui o ka ʻike a me ka pae ʻenehana ʻoihana ma ke kahua o ka mana kaʻa.

Hiki ke hana kūʻokoʻa nā huahana a me nā hoʻonā no ka mana kaʻa uila uila a i ʻole he ʻāpana o ka ʻōnaehana hoʻohui a scalable.

ʻO ka mana kaʻa, nā ʻāpana a hiki i 7.2 kV, 50 kA, hiki ke hoʻopili pololei ʻia me ABB UniGear series switch cabinets, e hoʻonui ana i waho mai nā ʻaoʻao ʻelua o ke keʻena hoʻololi.

Nā pōmaikaʻi nui:
Hiki ke hoʻohanaʻia i nā papahana moana me ka nui o nā noi
Loaʻa i ka hilinaʻi hana kiʻekiʻe e hōʻoia i ka palekana pilikino
ʻO ke koho maikaʻi loa no nā grids akamai e hoʻokō i nā pilikia o ka wā e hiki mai ana
ʻO ka palekana kaiapuni, hiki ke hana hou i nā mea
ʻO ka hale hana honua a me ke kākoʻo lawelawe

ʻO ka uila kiʻekiʻe ka manaʻo e pili ana i nā kaʻa nui nui ma luna o 1000V, a ʻo 660V/380V/220V/110V ua kapa ʻia ʻo ia ka uila uila. ʻO ka haʻahaʻa haʻahaʻa ka hapa nui no nā kaʻa ma lalo o 100V

ʻO ka moʻo kaʻa hoʻokomo hoʻokahi-phase, ʻekolu-phase kiʻekiʻe-efficiency induction motor series. ʻO Dongfang Motor ka hanauna hou o nā kaʻa uila maʻamau maʻamau AC. Hoʻohana ia i ka pae kiʻekiʻe o ka mīkini hana kiʻekiʻe, ua hoʻolako ʻia me ka mea hoʻemi ikaika kiʻekiʻe me ke kūpaʻa maikaʻi loa, a hahai i ka maʻalahi o ka hoʻohana ʻana, ke kumu kūʻai kūpono, a me ke koho kūpono.

ʻO kahi kaʻa e pili ana i kahi mea electromagnetic e ʻike i ka hoʻololi ʻana a i ʻole ka lawe ʻana i ka ikehu uila e like me ke kānāwai o ka electromagnetic induction.
Hoʻohālikelike ʻia ka kaʻa e ka huapalapala M i ke kaapuni (ʻo ka maʻamau kahiko ʻo D). ʻO kāna hana nui ka hana ʻana i ka ikehu kaʻa. Ma ke ʻano he mana no nā mīkini uila a i ʻole nā ​​mīkini like ʻole, hōʻike ʻia ka mea hana e ka leka G i ke kaapuni. ʻO kāna hana nui ka hana e hoʻololi i ka ikehu mīkini i ka ikehu uila.

1. Hoʻokaʻawale ʻia e like me ke ʻano o ka lako mana: hiki ke hoʻokaʻawale ʻia i DC motors a me AC motors.
1) Hiki ke hoʻokaʻawale ʻia nā motika DC e like me ke ʻano a me ke kumu hana: nā motika DC brushless a palaki ʻia nā motika DC.
Hiki ke hoʻokaʻawale ʻia nā motika DC Brush i loko o: nā mīkini DC paʻa mau a me nā motika DC electromagnetic.
Hoʻokaʻawale ʻia nā motika DC electromagnetic i: nā mīkini DC series-hauʻoli, nā mīkini DC haʻalulu nui, nā motika DC ʻokoʻa-hauʻoli a me nā mīkini DC hui pū ʻia.
Hoʻokaʻawale ʻia nā motika DC magnet paʻa i loko o: nā motika DC magnet permanente, ferrite permanent magnet DC motors a me Alnico permanent magnet DC motors.
2) I waena o lākou, hiki ke hoʻokaʻawale ʻia nā mīkini AC i: nā motika pae hoʻokahi a me nā mīkini ʻekolu.

2. Wahi a ka hanana a me ke kumumanaʻo hana, hiki ke hoʻokaʻawale ʻia i DC mau motika, nā motika asynchronous a me nā motika synchronous.
1) Hiki ke hoʻokaʻawale ʻia nā motoka lōkahi i: nā mīkini paʻa paʻa paʻa paʻa paʻa, ka ʻae ʻana i nā motika synchronous motors a me nā hysteresis synchous motors.
2) Hiki ke hoʻokaʻawale ʻia nā motika Asynchronous i: induction motors a me AC commutator motors.
Hiki ke hoʻokaʻawale ʻia nā motika hoʻokomo i ʻekolu mau mokulele asynchronous motors, hoʻokahi-ʻāpana asynchronous motors a me nā shaded-pou asynchronous motors.
Hiki ke hoʻokaʻawale ʻia nā mīkini AC commutator i: nā motika moʻo mokuna hoʻokahi, AC a me DC a me nā motika repulsion.

3. Wahi a ka mode hoʻomaka a me ka hana, hiki ke hoʻokaʻawale ʻia i: ka capacitor-hoʻomaka hoʻokahi-ʻāpana asynchronous motor, capacitor-operating single-phase asynchronous motor, capacitor-hoʻomaka hoʻokahi-phase asynchronous motor a me split-phase single-phase asynchronous kaʻa

4. Wahi a ke kumu, hiki ke hoʻokaʻawale ʻia i: hoʻokele kaʻa a me ka hoʻokele kaʻa.
1) Hiki ke hoʻokaʻawale ʻia nā motika kalaiwa i: nā mīkini no nā pono uila (me nā pono hana no ke ʻeli ʻana, anai ʻana, anai ʻana, ke kani ʻana, ka ʻoki ʻana, ka hoʻoulu hou ʻana, a pēlā aku), nā mīkini home (me nā mīkini holoi, nā peʻa uila, nā pahu hau, nā ea ea, nā mea hoʻopaʻa leo. , mea hoʻopaʻa leo wikiō, a pēlā aku), nā mea pāʻani DVD, nā mīkini holoi, nā kāmela, nā mīkini lauoho, nā ʻumiʻumi uila, a pēlā aku.) a me nā pono hana mīkini ʻē aʻe (e laʻa me nā mīkini mīkini liʻiliʻi, nā mīkini liʻiliʻi, nā pono lapaʻau, nā pono uila, a pēlā aku.) mokokaikala
2) Hoʻokaʻawale ʻia nā motika kaohi i nā mīkini ʻanuʻu a me nā mīkini servo.

5. Wahi a ke ʻano o ka rotor, hiki ke hoʻokaʻawale ʻia i: nā mīkini induction cage (i kapa ʻia ʻo nā squirrel cage asynchronous motors i ke kūlana kahiko) a me nā motika hoʻokomo rotor ʻeha (i kapa ʻia he mau motors asynchronous ʻeha i ka maʻamau kahiko).

6. Wahi a ka wikiwiki o ka hana, hiki ke hoʻokaʻawale ʻia i: ka motika wikiwiki, ka wikiwiki wikiwiki, ka motika wikiwiki, a me ka motika wikiwiki. Hoʻokaʻawale ʻia nā mokulele māmā i nā mīkini hoʻoemi kapa, nā mīkini hoʻēmi uila electromagnetic, nā motike torque a me nā motors synchous-claw-pou.

ʻAno DC
ʻO ke kumumanaʻo hana o ka mīkini hana DC e hoʻololi i ka ikaika electromotive alternating i hoʻokomo ʻia i ka coature armature i DC DC electromotive force ke huki ʻia mai ka hopena palaki e ka commutator a me ka hana commutation o ka palaki.
Hoʻoholo ʻia ke kuhikuhi o ka ikaika electromotive i hoʻokomo ʻia e like me ke kānāwai lima ʻākau (ʻo ka laina magnetic o ka induction e kuhikuhi ana i ka poho lima, kuhikuhi ka manamana lima i ke kuhikuhi o ka neʻe ʻana o ke alakaʻi, a ʻo nā manamana lima ʻehā e kuhikuhi i ke kuhikuhi. o ka ikaika electromotive i hookomoia i ka conductor).
kumumanaʻo hana
Hoʻoholo ʻia ka ʻaoʻao o ka ikaika o ka mea alakaʻi e ka lula hema. Ke hana nei kēia mau hui uila electromagnetic i kahi manawa e hana ma ka armature. Kapa ʻia kēia manawa i ka ikehu uila i loko o ka mīkini uila e kaʻa ana. ʻO ke ʻaoʻao o ka ikehu i ka ʻaoʻao ʻaoʻao i ka hoʻāʻo e hoʻohuli i ka armature i ka ʻaoʻao ʻaoʻao. Inā hiki i ka uea uila electromagnetic ke lanakila ma luna o ke aniani kūpale (e like me ke kūpale kūpale i hoʻokumu ʻia e ka hakakā a me nā torque ukana ʻē aʻe), hiki i ka armature ke hoʻololi i kahi ʻaoʻao kuea.
ʻO ka motika DC kahi kaʻa e holo i ka uila hana DC a hoʻohana ākea ʻia i nā mea hoʻopaʻa leo, nā mea hoʻopaʻa wikiō, nā mea pāʻani DVD, nā ʻumiʻumi uila, nā mea hoʻomaloʻo lauoho, nā uaki uila, nā mea pāʻani, a pēlā aku.

Electromagnetic
Hoʻokomo ʻia nā motika DC electromagnetic i mau pou stator, rotor (armature), commutator (ʻike ʻia he commutator), brushes, casing, bearings, etc.
Hoʻokumu ʻia nā pou manamana stator (nā pou manamana nui) o kahi motika DC electromagnetic i kahi kumu hao a me kahi wili pīhoihoi. Wahi a nā ʻano pīhoihoi ʻokoʻa (i kapa ʻia he pīhoihoi i ka hae kahiko), hiki ke hoʻokaʻawale ʻia i nā ʻāpana DC hauʻoli-hauʻoli, nā DC motors i hoʻohoka ʻia me ka ʻoliʻoli, a me nā motoka DC i hauʻoli loa. Ma muli o nā ʻano ʻoliʻoli ʻokoʻa, he ʻokoʻa nō hoʻi ke kānāwai o ka stator magnetic pou flux (hoʻokumu ʻia e ka coil coil o ka stator pou).
Hoʻopili ʻia ka wili o ke kahua a me ka wili rotor o ka motika DC i hoʻohālikelike ʻia i ka moʻo ma o ka pulupulu a me ka commutator. Ua like ke au o ke kahua me ke au lima. Ke piʻi aʻe nei ka mākēneki o ka stator me ka piʻi ʻana o ke au o ke kahua, a ua like ka torque me ke au uila. Hoʻohālikelike ʻia ke au o ka armature i ka huinahā o ke au, a hāʻule koke ka wikiwiki i ka piʻi ʻana o ka torque a i ʻole ka manawa. Hiki i ka torque hoʻomaka ke piʻi aku ma mua o 5 mau manawa i ka torque i helu ʻia, a hiki i ka manawa pōkole overload torque hiki ke piʻi aku ma mua o 4 mau manawa i ka torque helu. Nui ka wikiwiki o ka hoʻololi ʻana, a kiʻekiʻe loa ka wikiwiki ʻole (ʻaʻole i ʻae ʻia e holo ma lalo o ka ukana ʻole). Hiki ke hoʻokō ʻia ka hoʻoponopono wikiwiki ma o ka hoʻohana ʻana i nā mea pale o waho a me nā wili moʻo i ka series (a i ʻole i ka like), a i ʻole ma ka hoʻololi ʻana i nā wili moʻo i ka like.


Hoʻohui ʻia ka wili hauʻoli o ka motika DC shunt-excited DC i ka like me ka wili ʻana o ka rotor, kū mau ke ʻano o ka hauʻoli, kūlike ka ʻāpana hoʻomaka i ke au o ka armature, a ʻo ka manawa e hoʻomaka nei ma kahi o 2.5 mau manawa o ka helu i helu ʻia. Hoʻemi iki ka wikiwiki me ka hoʻonui ʻana o kēia a me ke aniani, a ʻo ka torque overload manawa pōkole he 1.5 mau manawa o ka ikehu i helu ʻia. Liʻiliʻi ke ana o ka hoʻololi wikiwiki, mai 5% a 15%. Hiki ke hoʻoponopono i ka wikiwiki e ka hoʻonāwaliwali ʻana i ka mana mau o ka māla uila.
Hoʻohui ʻia ka wili hauʻoli o ka motika DC ʻokoʻa hauʻoli i kahi lako mana kūʻokoʻa kūʻokoʻa, a kū mau ke ʻano o kona hauʻoli, a kūlike ka ʻāpana hoʻomaka i ke au o ka armature. ʻO ka hoʻololi wikiwiki ʻo 5% ~ 15% hoʻi. Hiki ke hoʻonui i ka wikiwiki e ka hoʻonāwaliwali ʻana i ka māla me ka mana mau a i ʻole ka hōʻemi ʻana i ka uila o ka wili huila e hōʻemi i ka wikiwiki.
Ma waho aʻe o ka wili shunt ma nā pou stator o ka mīkini DC hoʻouluulu pū ʻia, aia pū kekahi mau wili hoʻohiwahiwa i hoʻohui pū ʻia me nā wili rotor (ʻoi aku ka liʻiliʻi o nā huli). ʻO ke kuhikuhi o ka wili magnetic i hana ʻia e ka wili moʻo like me ka wili nui. ʻO ka torque hoʻomaka e pili ana i 4 mau manawa o ka torque i helu ʻia, a ʻo ka manawa pōkole overload torque ma kahi o 3.5 mau manawa i ka torque helu. ʻO ka wikiwiki o ka hoʻololi ʻana he 25% ~ 30% (e pili ana i ka wili o ka series). Hiki ke hoʻololi i ka wikiwiki ma o ka hoʻonāwaliwaliʻana i ka ikaika o ke kahua magnetic.
Hana ʻia ka ʻāpana commutator o ka commutator i nā mea hoʻoheheʻe e like me ke kālā-keleawe, cadmium-copper, etc., a hoʻoheheʻe ʻia me ka plastic ikaika kiʻekiʻe. Aia nā pulupulu i ka paheʻe ʻana me ka commutator e hāʻawi i ka manawa armature no nā wili rotor. Hoʻohana maʻamau nā pulupulu kaʻa uila Electromagnetic DC i nā pulupulu graphite metala a i ʻole nā ​​pulu graphite electrochemical. Hana ʻia ke kumu hao o ka rotor me nā ʻāpana kila silika laminated, ma ke ʻano he 12 slots, me 12 mau pūʻulu o nā wili armature i hoʻokomo ʻia i loko, a ma hope o ka hoʻopili ʻia ʻana o kēlā me kēia wili i ka moʻo, a laila hoʻopili ʻia i nā papa commutating 12.

ʻO ka motika synchronous kahi motika AC maʻamau e like me ka motika hoʻokomo. ʻO ke ʻano: i ka hana paʻa paʻa, aia kahi pilina mau ma waena o ka wikiwiki o ka rotor a me ke alapine pinepine n = ns = 60f / p, a lilo ns i ka wikiwiki like. Inā ʻaʻole e loli ke alapine o ka maka uila, e mau ana ka wikiwiki o ka motika synchronous i ke kūlana paʻa me ka nānā ʻole i ka nui o ka ukana. Hoʻokaʻawale ʻia nā mokupuni lōkahi i nā mīkini hana like a me nā mīkini ʻeʻe. ʻO nā mīkini AC i nā mea kanu mana o kēia mau lā nā motuka like ʻole.
kumumanaʻo hana
ʻO ka hoʻokumu ʻana o ka mākala nui: ua hala ka wili pīhoihoi me kahi kaha hauʻoli DC e hoʻokumu i kahi māla hoʻoulu hauʻoli ma waena o nā polarities, ʻo ia hoʻi, hoʻokumu ʻia ka māla nui.
Ke alakaʻi lawe ʻana i kēia manawa: ʻO ka wili ʻana i nā ʻāpana like ʻekolu i hana ʻia ma ke ʻano he mana wili a lilo i mea lawe i ka mana uila i hoʻokomo ʻia a i ʻole i hoʻoiho ʻia.
ʻO ka neʻe ʻoki ʻana: Na ka mea hoʻoneʻe nui e hoʻohuli i ka rotor e hoʻololi (hoʻokomo i ka ikehu mechanical i ke kaʻa), ʻo ke kahua magnetic excitation ma waena o nā ʻāpana polar e huli me ke kumu a ʻokiʻoki i nā wili stator phase (e like me ke conductor wili hoʻohuli i ka ʻoki ʻana i ka excitation magnetic. kahua).
Hoʻokumu ʻia o ka mana uila: Ma muli o ka neʻe ʻoki ʻana ma waena o ka wili armature a me ke kahua magnetic nui, ʻekolu-phase symmetrical alternating uila e hoʻololi ʻia ka nui a me ke kuhikuhi i kēlā me kēia manawa i ka wili armature. Ma o ke kaula alakaʻi, hiki ke hāʻawi ʻia ka mana AC.


Alternating and symmetry: Ma muli o ke ʻano o ka polarity o ke kahua magnetic rotating, ke hoʻololi nei ka polarity o ka mana uila i hoʻokomo ʻia; ma muli o ka symmetry o ka wili armature, ua hōʻoia ʻia ka symmetry ʻekolu-phase o ka hiki uila i hoʻokomo ʻia.
1. AC synchronous motor
AC synchronous kaʻa kaʻa kaʻa kaʻa kaʻa kaʻa kaʻa kaʻa kaʻa rotor e mālama i ka pilina kūlike mau me ke alapine mana. Hoʻohana nui ʻia ia i nā mea kani uila, nā lako keʻena hou, nā mīkini textile, etc.
2. Mekini paʻa synchronous motor
ʻO ka motor synchronous magnet paʻa he hoʻomaka asynchronous motor synchronous mau loa. ʻO kāna ʻōnaehana kahua magnetic he hoʻokahi a ʻoi aʻe paha nā mea hoʻokele mau, maʻamau i loko o kahi pahu rotor i hoʻopaʻa ʻia me ka alumini a i ʻole nā ​​pahu keleawe, a hoʻokomo ʻia e like me ka helu o nā pou. ʻO nā pou mākēneki i hoʻokomo ʻia me nā magnet mau loa. ʻO ke ʻano o ka stator e like me ke ʻano o ka mīkini asynchronous.
Ke hoʻopili ʻia ka wili stator i ka lako mana, hoʻomaka ka kaʻa a hoʻololi e like me ke kumu o ka motor asynchronous, a i ka wikiwiki ʻana i ka wikiwiki synchronous, ʻo ka synchronous electromagnetic torque i hoʻokumu ʻia e ke kahua magnetic mau o ka rotor a me ka stator magnetic. kahua (ua hoʻohālikelike ʻia ka torque electromagnetic i hana ʻia e ka mākia mau loa o ka rotor me ka hoʻohālikelike ʻana o ka reluctance torque synthesis i hana ʻia e ka stator magnetic field e huki i ka rotor i ka synchronization, a komo ke kaʻa i ka hana synchronous.
ʻO Reluctance Synchronous Motor Reluctance Synchronous Motor, ka mea i ʻike ʻia ʻo reactive synchronous motor, he motika synchronous e hana ana i ka reluctance torque ma o ka hoʻohana ʻana i ka axis rotor quadrature a me ka reluctance axis pololei e hoʻoulu i ka torque reluctance. He ʻano like kona stator me ko ka motika asynchronous, koe wale nō ka hoʻolālā rotor. ʻokoʻa.

21 April 2021

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