Njirimara na Ojiji nke Transformer Ụdị Akọrọ

Ugbu a, transformer ike akọrọ nke China bụ usoro SC siri ike nke nwere usoro atọ, dịka: transformer nke nwere usoro atọ nke SCB9, transformer nke nwere usoro atọ nke SCB10, transformer nke nwere usoro atọ nke SCB9. Ọkwa voltaji ya dị n'etiti 6-35kV, ikike kachasị elu ruo 25MVA. A na-ekewa transformer akọrọ n'ime transformer akọrọ e tinyere na resin na transformer akọrọ n'ụdị abụọ.

1. Ụdị transformer akọrọ a mịrị amị

E ji waya iko kpuchie waya nke transformer akọrọ a kpọnwụrụ akpọnwụ na China, a na-ejikwa ihe mkpuchi kwekọrọ na ya pịa pad ahụ nke ọma. A na-ejikarị ya eme ihe n'ọdụ ọkụ eletrik na ụlọ ndị dị elu nke nwere ezigbo ike iguzogide ọkụ.

N'ihi ọdịiche dị n'agba e tinyere ihe n'ime ihe, a na-ekewa ihe mkpuchi transformer n'ime B, F, H, C, ihe mkpuchi isi na nke kwụ ọtọ (ihe mkpuchi isi dị n'etiti ihe mkpuchi winding na ihe mkpuchi winding na n'etiti ihe mkpuchi isi.

Mkpuchi kwụ ọtọ na-ezo aka na mkpuchi dị n'etiti isi ihe dị iche iche na akụkụ dị iche iche nke winding transformer nwere ikike dị iche iche, ọkachasị gụnyere arụmọrụ mkpuchi n'etiti ntụgharị, oyi akwa na akụkụ nke winding. A na-eji ikuku eme ihe dị ka ihe mkpuchi.

Ụdị transformer a na-emetụta gburugburu ebe obibi karịa ụdị resin transformer akọrọ, ọdịdị na ibu dịkwa ukwuu, mmepụta n'ụlọ na mba ofesi na-ebelata.

E nwere akara njedebe n'akụkụ abụọ nke winding, anaghị atụ egwu mmiri ozuzo, ike iguzogide ọkụ, mgbochi ọkụ n'ọkụ mepere emepe na 750 ℃, bụ ụdị transformer akọrọ ọhụrụ. 1.2 A pụrụ kewaa ngwaahịa transformer akọrọ nke resin n'aha resin ụlọ taa n'ime ụdị atọ ndị a.

Ụdị nke mbụ, nke a na-akpọ transformer nke na-eme ka ihe dị n'ime ya dị ka waya, voltaji dị elu ya bụ waya agbaji silinda, obere voltaji bụ waya cylinder (ma ọ bụ nkewa silinda); Li Qian, Shaanxi provincial Electric Power (group) Co., LTD. Rịba ama na ọ dịghị ihe e ji emeju ihe.

Ụdị nke abụọ, nke a na-akpọ transformer nke na-eme ka ihe dị n'ime ya dị ka foil-wind casting, voltaji dị elu ya bụ nkewa nke ụdị ihe eji eme ka ihe dị n'ime ya dị ka foil-wind casting, voltaji dị ala bụ copper foil (ma ọ bụ aluminum foil) winding ụdị; A na-eme ka ihe eji eme ka ihe dị n'ime ya dị ka ihe na-ejupụta ihe.

Ụdị nke atọ, nrụgide dị elu maka ụdị silinda na-agbaji ọnya waya, ụdị winding foil ọla kọpa (ma ọ bụ foil aluminom) dị ala; A na-atụ ihe nkedo na-enweghị ihe ndozi.

Ụdị ngwaahịa atọ a dị n'elu nwere njirimara nke ha n'ichepụta na arụmọrụ nke ngwaahịa ndị a, ha na-enwekwa òkè ahịa ụfọdụ n'ahịa ugbu a. N'isiokwu a, anyị na-elekwasị anya na mkparịta ụka nke transformers waya.

2. Transformer nke e ji waya kpụọ

2.1. Atụmatụ ihe owuwu

N'ime ụlọ ọrụ ọkụ eletrik nke abụọ nke Baoji, ógbè Shaanxi, transformers akọrọ ejiri mee ihe n'ụlọ ọrụ mmepụta ihe bụ transformers a na-eji waya ekpuchi, nwere ọkwa voltaji nke 6 kV, ikike nke 100 kVA ruo 1600 kVA, na ntinye n'ime ụlọ.

A na-eji waya ọla kọpa mee windings voltaji dị elu na nke dị ala nke ngwaahịa a, e merụrụ ahụ nke ọma, eriri iko eme ka ọ sie ike, ihe mkpuchi dị gịrịgịrị, resin na-enweghị ihe ndochi, a na-awụpụ ihe n'okpuru ikuku, ma gwọọ ya dịka usoro ọgwụgwọ okpomọkụ kpọmkwem si dị.

Igwe mgbagharị voltaji dị elu na-eji usoro silinda pụrụ iche nkewa, ebe obere voltaji na-eji ụdị silinda dị iche iche, ụdị silinda nkewa ma ọ bụ ụdị silinda nkewa pụrụ iche dịka ọkwa voltaji si dị.

2.2 Atụmatụ teknụzụ

2.2.1 waya mgbochi mmetụta nke na-awụpụ transformer hv winding na-anabata nhazi cylindrical pụrụ iche nke akụkụ, nhazi a dabere na winding bobbin nke ngalaba nkịtị, ụdị cylinder nke ngalaba nkịtị ketara uru nke mgbochi mmetụta bobbin winding, ma dozie oyi akwa winding bobbin nke voltaji dị elu n'etiti ihe mgbochi, bụ nhazi winding zuru oke, A na-akpọkarị ya nhazi winding na-abụghị nke resonant.

Ma e jiri ya tụnyere silinda nkịtị nke a kewara ekewa, silinda pụrụ iche nke a kewara ekewa nwere ike ibelata voltaji dị n'etiti oyi akwa, melite nkesa voltaji, ma melite ike mmetụta nke ukwuu iji guzogide oke voltaji ikuku na oke voltaji na-arụ ọrụ.

Nguzogide mmetụta abụghị naanị metụtara nhazi nke winding, kamakwa ọ dabere na ịdị mma nke winding na njirimara eletriki nke ihe mkpuchi.

Mgbe emechara ịgbanye ihe mkpuchi nke ngwaahịa ahụ, a na-awụsa ya na resin dị ọcha n'ọnọdụ ikuku, a naghị etinyekwa ihe mgbakwunye ọ bụla, ka arụmọrụ nke resin ghara ibelata.

Ebe ọ bụ na waya na-agbagharị agbagharị ahụ, resin ahụ nwere ike ime ka eriri ahụ juchaa kpamkpam, n'agbanyeghị ebe ọ dị na ntụgharị axial ma ọ bụ radial, ọ dịghịkwa afụ dị n'ime ya.

Nchịkọta: Akwụkwọ a na-ewebata nhazi na njirimara nke transformer akọrọ, ma lekwasị anya na njirimara nhazi nke transformer waya na-awụsa ọnya, njirimara teknụzụ, sistemụ oyi, sistemụ njikwa okpomọkụ na ihe ndị ọzọ, chịkọtara atụmanya mmepe nke transformer akọrọ. Isi okwu: transformer akọrọ; nhazi transformer wire ọnya.

Resin na eriri iko nke ejiri ihe mkpuchi siri ike mee, ọ bụghị naanị na ọ na-eguzogide mmetụta dị mma, yana mwepụta mpaghara dị obere.

2.2.2. Ike igwe dị mma na ike siri ike nke na-eguzogide obere sekit. Maka ụdị waya a na-akpọ "cylindrical wire wire wire wired", mgbe a wụsara ya na vacuum, a pụrụ itinye resin ahụ n'etiti oyi akwa, ntụgharị na akụkụ nke winding n'otu oge.

Mgbe a gwọchara ya, a na-ejikọta resin, waya na eriri iko nke ọma iji mepụta usoro ahụ siri ike. Njirimara igwe dị elu nke usoro ahụ na-ekpebi na ngwaahịa nkedo ọnya waya nwere ezigbo iguzogide sekit dị mkpụmkpụ.

Oke mgbasawanye okpomọkụ nke ihe mkpuchi mejupụtara nke resin na eriri iko mepụtara bụ (18 ~ 20) × 10-6/K, oke mgbasawanye nke ọla kọpa ejiri na winding bụ 17 × 10-6/K, nke dị nso na ha abụọ. Ọ na-ewepụ nrụgide mekaniki dị n'etiti onye na-eduzi winding na ihe mkpuchi nke mgbasa okpomọkụ na mkpụkọ oyi kpatara n'oge ọrụ nke transformer. Site na mgbọrọgwụ iji wepụ ihe merenụ nke mgbawa.

Ebe ọ bụ na a na-eji resin eme ihe a na nrụgide dị elu na nke dị ala, a na-ejikwa resin ekpuchi isi ígwè ahụ, ọ nwere mmiri mmiri siri ike na iguzogide nchara. Mgbe iru mmiri ikuku dị 100%, ọ ka nwere ike ịrụ ọrụ ruo ogologo oge.

Ebe ọ bụ na ihe mkpuchi mejupụtara nke resin dị ọcha na eriri iko nwere ike eletriki dị elu nke ukwuu, ọkpụrụkpụ mkpuchi elu nke ngwaahịa ahụ bụ naanị 1.5 ~ 2 mm, nke na-eme ka arụmọrụ nke ikpo ọkụ nke elu na-agbagharị dịkwuo mma nke ukwuu.

2.3. Sistemụ oyi na nchekwa

A na-eme ka transformers kpọrọ nkụ jụọ oyi site na iji ikuku oyi eke na ikuku oyi nke a na-amanye. A na-eji ikuku oyi eke eme ka transformer rụọ ọrụ nkịtị n'okpuru ibu dị elu. A na-eji ikuku radial fan eme ka transformers kpọrọ nkụ ejiri na baoji No.2 jụ oyi site na ikuku a manyere.

Mgbe ikuku a manyere ka ọ jụọ oyi, ikike nke transformer ụdị akọrọ nwere 800 kVA na nke dị n'okpuru nwere ike ịbawanye site na 40%, nke transformer ụdị akọrọ nwere 800 kVA na karịa nwere ike ịbawanye site na 50%, ma nwee ike ịrụ ọrụ mgbe niile.

Ụdị transformer akọrọ na-abụkarị nchekwa IP00, ya bụ, na-enweghị shei, ojiji n'ime ụlọ, Baoji nke abụọ ọkụ eletrik bụ ojiji nke ụdị nchekwa a. Dịka ihe onye ọrụ chọrọ si dị, tinye shei nchebe.

Ebe obibi IP20 na-egbochi ịbanye ihe siri ike nke mba ọzọ karịrị 12 mm ma na-enye ihe mgbochi nye akụkụ ndị dị ndụ. Mgbe ejiri nchekwa IP23, ewezuga ọrụ nchekwa IP20, ọ nwekwara ọrụ nke igbochi mmiri ịgbasa.

2.4. Sistemụ njikwa okpomọkụ

Ọrụ nchekwa na ntụkwasị obi nke transformer ike na ndụ ọrụ ya dabere na mkpuchi nchekwa na ntụkwasị obi nke transformer winding. Okpomọkụ nke winding gafere okpomọkụ mkpuchi bụ otu n'ime isi ihe kpatara mkpuchi ahụ ji emebi ma transformer enweghị ike ịrụ ọrụ nke ọma.

Transformer nke eriri waya SC na-eji usoro nchekwa okpomọkụ akpaka XMTB. A na-etinye ihe nha okpomọkụ nke na-eguzogide okpomọkụ platinum na ntụgharị mbụ nke waya winding obere voltaji iji chọpụta mmụba okpomọkụ nke winding na akpaghị aka, gosipụta okpomọkụ nke winding obere voltaji nke atọ, ma nye ha nchekwa okpomọkụ.

Site na mgbanwe nke okpomọkụ na ibu gburugburu, mgbe winding ruru oke okpomọkụ, onye na-achịkwa okpomọkụ ga-ezipụ mgbaama na akpaghị aka iji chịkwaa mmalite fan (110 ℃), nkwụsị fan (90 ℃), mkpu (120 ℃) ​​na njem (145 ℃), ka ngwaahịa ahụ wee nwee nchebe ibu karịrị akarị a pụrụ ịdabere na ya na-arụ ọrụ.

Ndị na-agbanwe ihe nkedo waya nke usoro SC3 na-anabata teknụzụ M&C nke nwere ikike maka nchọpụta okpomọkụ na njikwa nke windings transformer, ma na-emepụta njikwa okpomọkụ nke nwere ike ịchọpụta okpomọkụ nke windings ozugbo, ma mezuo njikwa ikuku oyi (AF), mkpu oke okpomọkụ na njem oke okpomọkụ nke transformer.

Mgbe emechara nrụzi nke ihe njikwa okpomọkụ nkịtị, a na-ebu ụzọ tinye ihe mgbanwe ahụ n'ọrụ netwọk, e mesịa, a na-enye ihe njikwa okpomọkụ ike maka ọrụ. Ihe njikwa okpomọkụ ahụ nọ n'ọnọdụ njikwa akpaka, a na-emekwa nchọpụta okpomọkụ na nchekwa nke ihe mgbanwe ahụ. Mgbe okpomọkụ nke ihe mgbanwe ahụ dị elu karịa 110 ℃, ihe njikwa okpomọkụ ahụ na-amalite fan ahụ maka oyi a manyere; Ọ bụrụ na okpomọkụ ikuku ahụ ada n'okpuru 90 ℃ n'okpuru oyi ikuku a manyere, onye ofufe ahụ na-akwụsị.

Ọ bụrụ na okpomọkụ nke winding ahụ amụbawanye, onye na-achịkwa okpomọkụ ga-enye mkpu okpomọkụ karịrị akarị (155 ℃) na akara njem okpomọkụ karịrị akarị (170 ℃). Mgbe onye na-achịkwa okpomọkụ ahụ dara ma enweghị ike iwepụ ya nwa oge, wepụ onye na-achịkwa okpomọkụ ahụ, onye na-agbanwe okpomọkụ ahụ nwere ike ịnọgide na-arụ ọrụ, naanị ihe dị mkpa bụ inyocha ma hụ na onye na-agbanwe ihe ahụ nọ n'ọnọdụ ọrụ nkịtị.

3. Ntụnyere n'etiti transformer akọrọ na transformer nke e tinyere mmanụ n'ime ya

Uru dị mkpa na ọnụ ala dị ala nke transformers ndị e tinyere mmanụ na-esi ike iji transformers ndị ọzọ dochie ya. N'ihe gbasara nchekwa ọkụ na mpụga na ebe izugbe, ugbu a na n'ọdịnihu ruo ogologo oge, transformer ka ga-abụ isi transformer ndị e tinyere mmanụ na ha.

Mana maka ebe ndị nwere oke ihe achọrọ maka nchekwa ọkụ, a na-eji ụdị akọrọ ma ọ bụ mmiri mmiri na-anaghị ere ọkụ na transformers mmiri mmiri na-anaghị ere ọkụ. Transformer akọrọ nwere ikike ibufe ibu karịa transformer mmanụ, ọkachasị n'ihi na njupụta ugbu a nke transformer akọrọ dị ala, ikike okpomọkụ buru ibu, na oge ịgbagharị buru ibu.

Ma e jiri ya tụnyere transformer mmanụ e mikpuru n'ime mmiri, ọnọdụ ọrụ mkpuchi nke transformer akọrọ ka mma. Transformer mmanụ e mikpuru n'ime mmiri na-eji ọtụtụ ebe, ntinye n'èzí karịa.

Oke ike transformer akọrọ dị obere, ọ na-arụkwa ọrụ n'ime ụlọ karịa. Ma e jiri ya tụnyere transformers ndị e mikpuru na mmanụ, ọ na-enwe obere voltaji àmụ̀mà, isi ebili mmiri dị nwayọ na obere ohere nke ịkụ àmụ̀mà.

A na-ejikarị ihe njide oxide metal echebe transformers kpọrọ nkụ, nke na-egbochi oke voltaji ikuku, kamakwa ọ na-egbochi oke voltaji dị n'ime.