1. Circuit akara aka
Nke a bụ sekit njikwa akwụkwọ ntuziaka nke na-eji mma ọkụ na ihe mgbawa sekit iji chịkwaa ọrụ mgbanyụ nke sekit asynchronous motoManual control circuit atọ.
Sekit ahụ nwere usoro dị mfe ma dị mma maka obere moto nwere ikike na-amalite ugboro ugboro.Enweghị ike ịchịkwa moto na-akpaghị aka, ma ọ bụ enweghị ike ichebe ya pụọ na voltaji efu na mfu voltaji.Wụnye otu fuses FU iji mee ka moto nwee oke ibu yana nchebe sekit dị mkpụmkpụ.
2. The jog akara sekit
A na-achịkwa mmalite na nkwụsị nke moto site na bọtịnụ bọtịnụ, a na-ejikwa kọntaktị iji ghọta ọrụ nkwụsị nke moto ahụ.
Ọdịiche: Ọ bụrụ na moto dị na sekit njikwa jog na-aga n'ihu na-aga n'ihu, bọtịnụ mmalite SB ga-eji aka jide ya mgbe niile.
3. sekit njikwa ọrụ na-aga n'ihu (nchịkwa ngagharị ogologo)
A na-achịkwa mmalite na nkwụsị nke moto site na bọtịnụ bọtịnụ, a na-ejikwa kọntaktị iji ghọta ọrụ nkwụsị nke moto ahụ.
4. The jog na ogologo ngagharị akara sekit
Ụfọdụ ígwè ọrụ mmepụta chọrọ moto ahụ ka ọ nwee ike ịkwaga ma jog na ogologo.Dịka ọmụmaatụ, mgbe ngwá ọrụ igwe n'ozuzu na-arụ ọrụ nkịtị, moto na-agbagharị na-aga n'ihu, ya bụ, ogologo oge, ebe ọ na-adịkarị mkpa ịgba ọsọ n'oge nhazi na nhazi.
1. Jog na sekit njikwa ogologo oge na-achịkwa site na mgbanwe mgbanwe
2. Jog na sekit njikwa ogologo ngagharị na-achịkwa bọtịnụ mejupụtara
N'ịchịkọta, isi ihe na-achọpụta na-agba ọsọ ogologo na-agba ọsọ na-agba ọsọ akara nke akara bụ ma ọ nwere ike hụ na a na-ejikọta alaka nke onwe ya mgbe ejiri eriri KM ume.Ọ bụrụ na enwere ike ijikọ alaka nke na-akpọchi onwe ya, a ga-enwe ike ịmegharị ogologo oge, ma ọ bụghị naanị ije ije.
5. Na-aga n'ihu na ntụgharị nchịkwa nchịkwa
A na-akpọkwa njikwa na-aga n'ihu na ntụgharị ntụgharị, nke nwere ike ịghọta mmegharị nke akụkụ mmepụta na ụzọ dị mma na nke na-adịghị mma n'oge mmepụta.Maka moto asynchronous nke atọ, iji ghọta n'ihu na ntụgharị njikwa, ọ chọrọ naanị ịgbanwe usoro nke ike ọkụ ya, ya bụ, ịhazigharị akụkụ abụọ ọ bụla nke ahịrị ike nke atọ na sekit isi.
Enwere ụzọ njikwa abụọ a na-ejikarị: otu bụ iji nchikota nchikota iji gbanwee usoro nke usoro, nke ọzọ bụ iji isi kọntaktị nke kọntaktị iji gbanwee usoro nhazi.Nke mbụ bụ tumadi adabara Motors na-achọ ugboro ugboro n'ihu na agbara rotations, mgbe nke ikpeazụ bụ tumadi adabara Motors na-achọ ugboro n'ihu na laa azu rotations.
1. sekit njikwa mma-nkwụsị ike
Isi nsogbu nke eriri eletrik na-atụgharị na-atụgharị na ntụgharị nchịkwa bụ na mgbe ị na-agbanwe site n'otu nrụgharị gaa na nke ọzọ, a ga-ebu ụzọ pịa bọtịnụ nkwụsị SB1, na enweghị ike ịme mgbanwe ahụ ozugbo, nke doro anya na ọ dịghị mma.
2. sekit njikwa na-atụgharị n'ihu
Sekit a na-ejikọta uru nke ntinye ọkụ eletrik na ntinye bọtịnụ, ma ọ bụ sekit zuru oke nke nwere ike ọ bụghị nanị izute ihe achọrọ nke mmalite mmalite nke ntụgharị ntụgharị na ntụgharị, ma nweekwa nchekwa dị elu na ntụkwasị obi.
Njikọ nchebe ahịrị
(1) Nchekwa mkpirisi okirikiri A na-ebipụ isi sekit site na mgbaze nke fuse ma ọ bụrụ na ọ dị mkpirikpi.
(2) A na-enweta nchedo oke ibu site na mgbagharị ọkụ.N'ihi na thermal inertia nke thermal relay bụ dịtụ ukwuu, ọ bụrụgodị na a ugbu a ọtụtụ ugboro a gosiri ugbu a na-aga site thermal element, thermal relay agaghị eme ozugbo.Ya mere, mgbe mmalite oge nke moto adịghị ogologo oge, ọkụ relay nwere ike iguzogide mmetụta nke mmalite nke ugbu a nke moto na agaghị eme ihe.Naanị mgbe moto na-ebufe ibu ruo ogologo oge, ọ ga-eme ihe, wepụ njikọ nchịkwa, eriri kọntaktị ga-efunahụ ike, bepụ isi sekit nke moto ahụ, ma ghọta oke nchebe.
(3) Nchekwa n'okpuru voltaji na n'okpuru voltaji A na-enweta nchebe na-adịghị ala ala na nchebe site na kọntaktị na-akpọchi onwe ya nke kọntaktị KM.Na ọrụ nkịtị nke moto ahụ, voltaji grid na-apụ n'anya ma ọ bụ na-ebelata maka ihe ụfọdụ.Mgbe voltaji dị ala karịa ntọhapụ nke voltaji nke kọntaktị kọntaktị, a na-ahapụ onye na-ahụ maka kọntaktị ahụ, a na-ewepụ kọntaktị na-ekpochi onwe ya, na isi kọntaktị na-ewepụ, na-ewepụ ike moto., moto na-akwụsị.Ọ bụrụ na voltaji ọkụ eletrik na-alaghachi na nkịtị, n'ihi nkwụsị nke onwe ya, moto agaghị amalite n'onwe ya, na-ezere ihe mberede.
• Ụzọ mmalite sekit dị n'elu bụ mmalite voltaji zuru oke.
Mgbe ikike nke onye ntụgharị na-enye ohere, squirrel-cage asynchronous moto kwesịrị ịmalite ozugbo na voltaji zuru oke dị ka o kwere mee, nke na-enweghị ike imeziwanye ntụkwasị obi nke sekit njikwa, kamakwa belata ọrụ mmezi nke ngwa eletriki.
6. Nzọụkwụ-ala malite sekit nke asynchronous moto
• Mmalite voltaji zuru oke nke moto asynchronous nwere ike iru ugboro 4-7 karịa ugbu a.Ịmalite oke ugbu a ga-ebelata ndụ nke moto ahụ, mee ka voltaji nke abụọ nke transformer daa nke ukwuu, belata mmalite mmalite nke moto n'onwe ya, na ọbụna mee ka moto ahụ ghara ịmalite ma ọlị, na-emetụtakwa ọrụ nkịtị nke ndị ọzọ. akụrụngwa na otu ike ọkọnọ netwọk.Kedu otu esi ekpe ikpe ma moto nwere ike ịmalite na voltaji zuru oke?
• N'ozuzu, ndị nwere moto ikike n'okpuru 10kW nwere ike ịmalite ozugbo.Ma a na-ahapụ moto asynchronous n'elu 10kW ka ọ malite ozugbo na-adabere n'ogo nke ikike moto na ikike ntụgharị ike.
• Maka moto nke ikike enyere, jiri usoro nleba anya na-esote iji tụọ atụmatụ.
• Iq/Ie≤3/4+ ike transformer ike (kVA)/[4× moto ikike (kVA)]
• Na usoro, Iq-motor full voltaji malite ugbu a (A);Ya bụ—moto gosiri ugbu a (A).
• Ọ bụrụ na ngụkọ ngụkọ na-eju usoro ihe atụ nke dị n'elu, ọ ga-ekwe omume ịmalite na nrụgide zuru oke, ma ọ bụghị ya, a naghị ekwe ka ịmalite na nrụgide zuru ezu, ma ekwesịrị ịtụle mmalite voltaji belata.
• Mgbe ụfọdụ, iji gbochie ma belata mmetụta nke mmalite mmalite na akụrụngwa akụrụngwa, moto nke na-enye ohere mmalite voltaji na-anabatakwa usoro mmalite nke voltaji belata.
• E nwere ọtụtụ ụzọ maka nzọụkwụ mgbada mmalite nke squirrel-ọnụ asynchronous Motors: stator sekit usoro mgbochi (ma ọ bụ reactance) nzọụkwụ-ala malite, auto-transformer nzọụkwụ-ala malite, Y-△ nzọụkwụ-ala malite, △-△ nzọụkwụ. -down malite, wdg. A na-eji usoro ndị a na-amachi mmalite nke ugbu a (n'ozuzu, mmalite nke ugbu a mgbe ibelata voltaji bụ 2-3 ugboro nke ugbu a nke moto), belata nkwụsị voltaji nke isi iyi ọkụ, ma hụ na arụ ọrụ nkịtị nke ngwa eletriki nke onye ọrụ ọ bụla.
1. Series eguzogide (ma ọ bụ reactance) nzọụkwụ-ala malite akara sekit
N'oge usoro mmalite nke moto ahụ, a na-ejikọta nguzogide (ma ọ bụ reactance) n'usoro n'usoro na sekit stator nke atọ iji belata voltaji na winding stator, nke mere na enwere ike ịmalite moto ahụ na volta na-ebelata iji nweta nzube ahụ. nke ịmachi mmalite ugbu a.Ozugbo moto ọsọ dị nso na gosiri uru, bepụ usoro nguzogide (ma ọ bụ reactance), nke mere na moto abanye nkịtị ọrụ nke zuru voltaji.Echiche imewe nke ụdị sekit a na-abụkarị iji usoro oge iji bepụ nguzogide (ma ọ bụ mmeghachi omume) n'usoro mgbe ịmalite imecha usoro mmalite.
Stator string eguzogide mgbada-ala mmalite akara sekit
• Uru nke usoro nguzogide mmalite bụ na sekit njikwa nwere usoro dị mfe, ọnụ ala dị ala, ihe a pụrụ ịdabere na ya, ihe ike na-eme ka ọ dịkwuo mma, ma na-eme ka ọ dị mma iji hụ na grid ike.Otú ọ dị, n'ihi na voltaji Mbelata nke stator eriri eguzogide, mmalite ugbu a mbelata n'ike-n'ike nke stator voltaji, na mmalite torque na-ebelata dị ka square ugboro nke voltaji drop ratio.N'otu oge ahụ, mmalite nke ọ bụla na-eri oke ike.Ya mere, atọ-phase squirrel-cage asynchronous moto adopts mmalite usoro nke iguzogide nzọụkwụ-ala, nke bụ naanị adabara obere na ọkara-ike Motors na-achọ ezigbo mmalite na oge ebe mmalite na-adịghị ugboro ugboro.Nnukwu moto nwere ikike na-ejikarị usoro mmeghachi omume mgbada gbadata.
2. eriri autotransformer nzọụkwụ-ala malite akara sekit
• Na sekit njikwa nke auto-transformer nzọụkwụ-down malite, na-amachi mmalite nke ugbu a nke moto na-aghọta site nzọụkwụ-ala ọrụ nke auto-transformer.Isi nke autotransformer jikọtara ya na ọkụ ọkụ, na nke abụọ nke autotransformer na-ejikọta ya na moto.Nke abụọ nke autotransformer n'ozuzu nwere 3 taps, na 3 ụdị voltaji nke dị iche iche ụkpụrụ nwere ike nweta.Mgbe a na-eji ya eme ihe, enwere ike ịhọrọ ya n'ụzọ dị nro dịka ihe ndị a chọrọ maka ịmalite ugbu a na ịmalite ịmalite.Mgbe moto na-amalite, voltaji enwetara site na winding stator bụ voltaji nke abụọ nke autotransformer.Ozugbo mmalite ahụ mechara, a na-ebipụ autotransformer, na moto na-ejikọta ya na ọkụ ọkụ, ya bụ, a na-enweta isi voltaji nke autotransformer, na moto na-abanye na ọrụ voltaji zuru ezu.A na-akpọkarị ụdị autotransformer dị ka onye na-akwụ ụgwọ mmalite.
• N'oge usoro mmalite nkwụsị nke autotransformer, ọnụ ọgụgụ nke mmalite nke ugbu a na mmalite mmalite na-ebelata site na square nke mgbanwe mgbanwe.N'okpuru ọnọdụ nke inweta otu ihe mmalite mmalite, ugbu a nwetara site na ike grid site na autotransformer nzọụkwụ-down malite dị nnọọ nta karịa nke ahụ na nkwụsị nkwụsị nkwụsị na-amalite, mmetụta na grid dị ugbu a dị ntakịrị, na ike nkwụsị. dị obere.Ya mere, a na-akpọ autotransformer onye na-akwụ ụgwọ mmalite.N'ikwu ya n'ụzọ ọzọ, ọ bụrụ na a na-enweta mmalite nke ugbu a nke otu ịdị ukwuu site na grid ike, nkwụsị ala na-amalite site na autotransformer ga-emepụta nnukwu mmalite mmalite.A na-ejikarị usoro mmalite a eme ihe maka moto nwere nnukwu ikike na ọrụ nkịtị na njikọ kpakpando.Ihe ọghọm ya bụ na autotransformer dị oke ọnụ, usoro nguzogide ndị ikwu dị mgbagwoju anya, olu dị ukwuu, a na-emepụta ya ma mepụta ya dịka usoro arụ ọrụ kwụsịrị, ya mere, a naghị anabata ọrụ ugboro ugboro.
3. Y-△ mgbada-ala na-amalite akara sekit
• Uru nke atọ-phase squirrel-cage asynchronous moto na Y-△ nzọụkwụ-ala malite bụ: mgbe stator winding jikọtara na kpakpando, mmalite voltaji bụ 1/3 nke mgbe a na-eji njikọ delta ozugbo, na mmalite nke ugbu a bụ 1/3 nke ahụ mgbe ejiri njikọ delta./ 3, ya mere njirimara mmalite nke ugbu a dị mma, sekit ahụ dị mfe, na ntinye ego dị ntakịrị.Ihe ọghọm dị na mmalite mmalite na-ebelatakwa 1/3 nke usoro njikọ delta, na njirimara torque adịghị mma.Ya mere, ahịrị a dabara adaba maka obere ibu ma ọ bụ enweghị ibu mmalite.Tụkwasị na nke a, ekwesịrị ịdebe na nkwụsi ike nke ntụgharị ntụgharị kwesịrị ilebara anya mgbe ị na-ejikọta Y-
Oge nzipu: Jun-30-2022