1 rpm mota yakagadzirirwa vagadziri vemotikari muIndia
47. zvinhu zvekuongorora panguva yekutanga uye kushanda kweboiler mvura inotenderera pombi?
Mhinduro: Kuongorora panguva yekushanda:
(1) Kuyerera kwemvura yekuyerera kwemota kuchachengetwa pa 0.671m3/h ~ 1.118m3/h panguva yekupisa kana kutonhora kushanda kusvikira bhegi remhepo rinomanikidza rasvika 1.6Mpa uye ferric chloride yemukati yakaderera pane -0.3ppm.
(2) Hutsanana hwemvura inotonhorera yemotor ichaongororwa uye kuongororwa maawa gumi nemaviri ega ega mukushanda kunotonhora, uye kamwe chete pasvondo mukushanda kwakajairika.
Matanho ekutanga:
(1) Pombi yekumira ichashandiswa kamwe chete pamwedzi kwemaminetsi gumi-gumi nemashanu.
(2) Pombi yekumira ichiri kuda kutarisa kuti mota inotonhorera tembiricha yemvura haina kuderera pane 40 ℃, uye teerera kune anti kutonhora.
(3) Nguva yekutanga nguva yemotokari haifaniri kunge iri pasi pemaminitsi gumi nemashanu.
48. Mumamiriro ezvinhu akaita sei injini yeboiler mvura inotenderera pombi inofanira kuvharwa?
Mhinduro: (1) tembiricha yemota yakakwira kupfuura 60 ℃.
(2) Ikozvino inowedzera kamwe kamwe kana kudzokera kune zero mushure mekuita kwazvino.
(3) Mvura yakaderera-inotonhora inotonhorera ye-high-pressure cooler inokanganiswa uye alarm inopihwa.
(4) Kuzunguza ukoshi kunodarika 12.5 ~ 15 waya (5 ~ 6mil) (0.127mm ~ 0.152mm).
(5) Kana mota ikatadza kutanga mukati me5 masekonzi, ichamiswa nekukurumidza kuti iwane chikonzero.
49. chii chinokonzera kuzununguka uye ruzha rwemota induction?
Mhinduro: ruzha rwekushanda kwakajairika kwemota kunokonzerwa nezvikamu zviviri: kuzununguka kwesimbi yesimbi silicon simbi pepa nekuda kwekuita kwesimba remagetsi emagetsi mushure mekupfuura nepainochinjisa magineti flux, uye kuvhuvhuta kweiyo rotor. Mazwi aya akafanana. Kana paine ruzha rusina kujairika uye kudedera, zvinogona kukonzerwa nezvikonzero zvinotevera:
(1) Zvikonzero zvekubuda kwemagetsi:
a) Wiring kukanganisa. Semuyenzaniso, imwe nhanho mhepo inotenderedzwa yakabatana nereverse, uye mahwindi ega ega parallel dunhu ane majana akasiyana.
b) Kumonereka kupfupi kutenderera.
c) Mapazi ega ega mu-multi-channel winding akavhurika dunhu.
d) Rotor bar yakatsemuka.
e) Iyo iron core silicon simbi sheet yakasununguka.
f) Mhepo yemagetsi ndeye asymmetric.
g) Iyo magineti yedunhu ndeye asymmetrical
(2) Mechanical zvikonzero:
a) Nheyo haina kusimbiswa zvakasimba.
b) Mota uye muchina wakadhonzwa hazvina kuenderana.
c) Rotor eccentricity kana protruding stator slot wedge inokonzera kukweshana pakati pe stator ne rotor (motor sweeping).
d) Kubata kwakapfupika nemafuta, bhora resimbi rekukunguruka rinokuvadzwa, bhanhire rekutakura uye rinotakura rinoputirwa, uye chigaro chegwenzi chinotakura chinofambiswa.
e) Iyo rotor fan yakakuvadzwa kana chiyero chakakuvadzwa.
f) Kudengenyeka kusingaite kwemuchina wakatakurwa kunokonzeresa kuzunguzika kwemota.
1 rpm mota yakagadzirirwa vagadziri vemotikari muIndia
50. Ndeipi basa reDC motor excitation circuit yakabatana mukufanana nekupikisa?
Mhinduro: kana iyo yekufambisa dunhu reDC mota yakadzimwa, mukana wepamusoro unokonzereswa pamativi ese emunda unomonereka nekuda kwekuzvipinza mukati, izvo zvinogona kuve nengozi kutendeuka kushandura insulation yemhepo. Kuti ubvise njodzi iyi, kupokana kunobatanidzwa kumativi ese emunda wemhepo, iyo inonzi discharge resistance. Iyo yekuburitsa kuramba inogona kuumba dunhu reiyo magnetic field winding. Pane imwe nguva njodzi inogona kuitika, ikozvino inoumbwa munharaunda, kuitira kuti simba remagineti rinopedzwa mukupikisa.
51. chii chinonzi asynchronous?
Mhinduro: kukurumidza kwe rotor ye asynchronous motor inofanira kuva shoma kudarika kukurumidza kwe stator inotenderera magnetic field. Iwo maviri kumhanya haagone kuwiriraniswa, saka inonzi "asynchronous".
52. chii chinotsvedza cheasynchronous mota?
Mhinduro: mutsauko uripo pakati pekumhanyisa kumhanya uye rotor kumhanya kweasynchronous mota inonzi kutsvedza, uye iyo yepakati kukosha kwereshiyo yekutsvedza kune synchronous kumhanya kunonzi kutsvedza kweasynchronous mota.
53. Ndezvipi zvinhu zvine chekuita neasina-mutoro ikozvino yeasynchronous mota?
Mhinduro: inonyanya kuenderana nemagetsi emagetsi. Nekuti magetsi ekupa magetsi akakwira, iyo magineti inoyerera musimbi musimboti inowedzera, uye iyo magineti kuramba inowedzera. Kana magetsi emagetsi asvika pane imwe kukosha, iyo magineti kuramba musimbi musimboti inowedzera zvakanyanya uye inductive reactance yemhepo inodzika inoderera zvakanyanya. Panguva ino, kuwedzera kudiki kwemagetsi emagetsi kuchaita kuti pave nekuwedzera kukuru kwekusina-mutoro ikozvino.
54. chii chinokonzera kuwandisa kwete-mutoro ikozvino yeasynchronous mota?
Mhinduro: (1) magetsi emagetsi akanyanya kukwirira: Izvi zvinodaro nekuti kuzara kweiyo mota iron core kunoita kuti iyo isina-mutoro iwedzere kuwanda.
(2) Kusangana kwakashata kana kunyanyisa kwemhepo gap.
(3) Huwandu hwekutendeuka kwe stator winding hauna kukwana kana kuti nyeredzi yakabatana zvisizvo mukubatanidza katatu.
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55. chii chichaitika kana mota yaremerwa?
Mhinduro: iyo yakawandisa kushanda kwemota kuchaparadza hukama hwemagetsi, kuderedza kumhanya kwemota uye kuwedzera tembiricha. Kana kuremerwa kwenguva pfupi kunogona kuchengetedza kushanda, kana kuremerwa kwenguva yakareba kudarika yakarongwa ikozvino yemotokari, kuvhara kunopisa uye kunowedzera kukwegura, uye kunyange kupisa motokari.
56. Ndezvipi zvinhu zvine chekuita neiyo torque yakakura yeasynchronous mota?
Mhinduro: (1) iyo torque yakakura inoenderana neskweya yevoltiji. (2) Iyo yakanyanya torque yakaenzana neiyo leakage reactance.
57. Chii chinonzi ngura yemagetsi?
Mhinduro: panowanzoita rudzi rwekuora chiitiko pane dzimwe nzvimbo dzakadzivirirwa mu stator bar slot ye high-voltage motor, kusanganisira mukati nekunze kwekunze kwe anti halo layer. Izvo zvakareruka kuti iyo anti halo layer inoshandura ruvara, inorema zvekuti iyo anti halo layer inova crisp, uye kune makomba mune main insulation. Chiitiko ichi chinonzi "electric corrosion".
58. kasi yakaderera inobvumirwa DC mota?
Mhinduro: iyo yakaderera-kumhanya kushanda kweDC mota ichawedzera tembiricha inokwira uye ine yakawanda yakashata mhedzisiro pamota. Nekudaro, kana matanho anoshanda akatorwa ekuvandudza kupisa kwekupisa simba remota, inogona kumhanya kwenguva yakareba pasi pechikonzero chekusapfuudza kukwira kwekushisa kwakayerwa.
1 rpm mota yakagadzirirwa vagadziri vemotikari muIndia
59. chii chinofanira kucherechedzwa kana uchitanga mota?
Mhinduro: (1) kana simba rekushandura rakashandurwa uye motokari rotor isingafambi, shanduko ichabviswa pakarepo, uye kutangazve kunobvumirwa chete mushure mokunge chikonzero chacho chawanikwa uye kukanganisa kunobviswa.
(2) Mushure mekunge shanduko yemagetsi yavhurwa, kana mota ikaita ruzha rusina kujairika, ichabva yadzima uye mudziyo wekutyaira uye fuse yemota ichaongororwa.
(3) Mushure mekunge shanduko yemagetsi yavhurwa, nguva yekutanga yemota uye shanduko yeammeter ichatariswa. Kana nguva yekutanga yakarebesa kana ammeter isingadzoke kwenguva yakareba, switch inovhurwa nekukasira kuti iongororwe.
(4) Panguva yekutanga, kana motokari ikawanikwa ichipfuta kana kudengenyeka zvakanyanya mushure mekutanga, ichavharwa pakarepo kuti iongororwe.
(5) Mumamiriro ezvinhu akajairwa, mota yekubatsira inotenderwa kutangwa kaviri munzvimbo inotonhora, uye nguva iri pakati penguva imwe neimwe haingasviki maminetsi mashanu; Tanga kamwe muchipisa. Chete kana uchibata netsaona uye nguva yekutanga haisi kupfuura 5 ~ 2 masekondi, mota inogona kutangwa zvakare.
(6) Kana zvikaonekwa kuti mota yakadzoserwa kumashure mushure mekutanga, ichadzimwa uye kudzima nekukasira, uye chero maviri-chikamu wiring yemagetsi matatu-chikamu magetsi ichatsiviwa isati yatangazve.
60. ndezvipi zvikonzero nei iyo DC mota isingatangwe kazhinji?
Mhinduro: (1) brashi haisi pamutsetse usina kwawakarerekera. (2) Mhepo yemagetsi yakaderera. (3) The excitation circuit yakabviswa. (4) Iyo reversing pole coil inobatanidzwa neshure. (5) Kusabatwa zvakanaka kwebhurashi. (6) Mota yakaremerwa zvakanyanya.
61. nei iyo asynchronous mota ichiburitsa overvoltage kana yakadzimwa?
Mhinduro: nokuti ikozvino mu inductance coil ( winding ) inogurwa panguva yekuchinja, iyo magnetic flux inogadzirwa nezvino inochinja zvakanyanya, zvichiita kuti iwedzere. Iyi overvoltage inogona kuitika kumagumo e stator uye rotor windings yemaronda mota.
62. chii chinokonzera motokari imwe-phase grounding?
Mhinduro: (1) kumonereka kwakanyorova.
(2) Iyo inomonereka inoremerwa kwenguva yakareba kana yemuno tembiricha yakakwira inoita kuti insulation iite brittle uye kudonha.
(3) Iyo silicon simbi simbi yesimbi musimboti yakasununguka kana ine minzwa yakapinza, ichicheka iyo yekuvharisa.
(4) Iyo inomonereka lead insulation yakakuvadzwa kana kudhumhana necasing.
(5) Njodzi dzakavanzwa dzakasiiwa panguva yekugadzira, senge abrasion yemutsetse wezasi, kutamiswa kweslot insulation, kuwira muzvinhu zvesimbi, nezvimwe.
1 rpm mota yakagadzirirwa vagadziri vemotikari muIndia
63. Ndezvipi zvinhu zvinofanira kutariswa usati watanga ichangobva kuiswa kana overhauled asynchronous mota?
Mhinduro: tarisa pane zvinotevera zvikamu:
(1) Edza kana iyo insulation resistance ye motor stator circuit inokwanisa.
(2) Tarisa uone kana waya yekumisa mota iri muchimiro chakanaka.
(3) Tarisa uone kana screws dzechikamu chimwe nechimwe chemota dzakasungwa.
(4) Zvinoenderana nemota nameplate, tarisa kuti magetsi emagetsi emota anowirirana here uye kuti mhepo yekumonera wiring mode ndeyechokwadi.
(5) Shandisa ruoko kufambisa mota rotor, iyo inotenderera ichichinjika pasina jamming uye kukweshana.
(6) Tarisa uone kana mudziyo wekutapurirana, yekutonhodza system, coupling, imba uye yekutanga mudziyo uri muchimiro chakanaka.
(7) Tarisa uone kana simba, dziviriro uye fuse kuseta kwezvinhu zvekutonga, masaini echiratidzo chemwenje uye zviridzwa zvinosangana nezvinodiwa.
(8) Kunyangwe iyo mota yemotokari nenzvimbo dzakatenderedza dzakachena uye dzisina maturu anogona kukanganisa kutanga nekuongorora.
Single phase AC mota ine imwe chete inomonereka uye rotor is squirrel cage type. Kana iyo single-phase sinusoidal ikozvino inopfuura nepamhepo inotenderera, mota inoburitsa inochinjika magineti. Simba uye kutungamirirwa kwemagnetic field kuchachinja sinusoidally nekufamba kwenguva, asi inogadziriswa munzvimbo yepakati. Naizvozvo, inonziwo alternating pulsating magnetic field. Iyi inotsinhanisa pulsating magineti inogona kuoreswa kuita magineti maviri anotenderera ayo akatarisana nekumhanya kwakafanana uye kwainotenderera. Kana rotor yakamira, magineti maviri anotenderera anoburitsa ma torque maviri ehukuru hwakaenzana uye akatarisana murotor, achiita iyo torque yekugadzira zero, saka mota haigone kutenderera. Kana isu tikashandisa simba rekunze kuita kuti mota itenderere mune imwe nzira (yakadai sekutenderera kwewachi), mafambiro ekucheka magineti mutsara wesimba pakati pe rotor uye inotenderera magineti mukufamba kwewachi kutenderera kunova kudiki; Iyo yekucheka magineti mutsara wesimba rekufamba pakati pe rotor uye inotenderera magineti munzvimbo inotenderera yekutenderera inova yakakura. Nenzira iyi, chiyero chakatyoka, iyo yakazara electromagnetic torque inogadzirwa ne rotor haichazove zero, uye rotor inotenderera ichitevedza nzira yekutyaira.
Kuita kuti imwe-chikamu mota itenderere otomatiki, isu tinogona kuwedzera mhepo yekutanga mu stator. Musiyano wenzvimbo pakati pekupeta kwekutanga uye mhepo huru ndeye 90 madhigirii. Kutanga kupeta kunofanira kubatanidzwa neakakodzera capacitor mumutsara, kuitira kuti mutsauko wepakati pakati pezvino uye mhepo huru inenge 90 degrees, kureva, iyo inonzi chikamu chekuparadzanisa musimboti. Nenzira iyi, mafungu maviri ane nguva yakasiyana ye90 madhigirii akabatanidzwa kune maviri mamhepo ane nzvimbo yakasiyana ye90 madhigirii, iyo ichaita (mbiri-chikamu) inotenderera magnetic field munzvimbo, sezvinoratidzwa mumufananidzo 2. Pasi pechiito. yeiyi inotenderera yemagineti, iyo rotor inogona kutanga yega. Mushure mekutanga, kana kukurumidza kukwira kune imwe nhanho, mhepo yekutanga inobviswa nerubatsiro rwe centrifugal switch kana mamwe maotomatiki ekudzora zvigadziriso akaiswa pa rotor. Chete mhepo huru inoshanda panguva yekushanda kwakajairika. Naizvozvo, iyo yekutanga mhepo inogona kuitwa mupfupi-nguva yekushanda modhi. Nekudaro, muzviitiko zvakawanda, mhepo yekutanga haivhurike nguva dzose. Tinodaidza mota iyi capacitive single-phase mota. Kuti uchinje kutungamira kweiyi mota, tinogona kushandura chinzvimbo cheiyo yakatevedzana yekubatanidza capacitors.
1 rpm mota yakagadzirirwa vagadziri vemotikari muIndia
Mune imwe-chikamu mota, imwe nzira yekugadzira inotenderera magineti inonzi shaded pole nzira, inozivikanwawo se single-phase shaded pole mota. Iyo stator yerudzi urwu rwemota inogadzirwa nemhando yedanda, ine mapango maviri nemapango mana. Imwe neimwe danda remagineti rinopihwa diki diki pane 1/3--1/4 yakazara danda pamusoro, sezvakaratidzwa muMufananidzo 3. Iyo magnetic pole inokamurwa kuita zvikamu zviviri, uye pfupi-yedunhu mhete yemhangura inoiswa maoko padiki. chikamu, sekunge ichi chikamu chemagnetic pole chakavharwa, saka chinonzi chakavharwa danda mota. Iyo imwe-phase mhepo inotenderedza yakafukidzwa pane yese magineti pole, uye makoiri epango rega rega akabatanidzwa munhevedzano. Kana uchibatanidza, iyo polarity inogadzirwa inofanirwa kurongeka muN, s, N uye s vachichinjana. Kana iyo stator mhepo ichipedzwa simba, iyo huru yemagineti inogadzirwa mune iyo magineti pole. Zvinoenderana nemutemo waLenz, iyo huru yemagineti inopfuura nepapfupi-yedunhu mhete yemhangura inoburitsa ikozvino induced mumhete yemhangura inosara kumashure kwe90 degrees muchikamu. Iyo magineti flux inogadzirwa neichi iripo zvakare inosara kumashure kweiyo huru magineti flux muchikamu. Basa rayo rakafanana nerekutanga mhepo ye capacitive motor, nekudaro ichigadzira inotenderera yemagineti kuita kuti mota itenderere.
Kugadzira imwe-chikamu AC mota kumberi uye kumashure, zvinoenderana nechimiro chemota, iyo inowanzo patsanurwa kuita ina mhando.
1 is a split phase mota Kune mapoka maviri emakoiri, imwe ndeye inomhanya coil uye imwe ndiyo yekutanga coil. Kudzoreredza waya mbiri magumo eimwe yemapoka maviri emakoiri anogona kushandura mota
2 is a push-pull motor. Kazhinji, isu tinogona kushandura kutenderera kutenderera kwemota nekufambisa bhurashi pachinzvimbo cheiyo inverter
3. Shaded pole mota, umo mota inogona kudzoserwa chete nekuburitsa iyo stator core yemota munzira mbiri.
4. Iyo tambo yemagetsi musoro weyakajairwa yakatevedzana inonakidza mota ine inochinjika yemagetsi kana yemagineti yakanaka
