5.05 MVA Railway Transformers-132/2*1.22+2.36 KV|South Africa 2025

01 Izugbe

1.1 Nkọwa oru ngo

5050 kVA traction transformer ka ebugara South Africa na 2025. Akara ikike nke transformer bụ 5050 kVA na ONAN jụrụ oyi. Voltage mbụ bụ 132 kV yana ±2*2.5% tapping range (NLTC), voltaji nke abụọ bụ 2*1.22+2.36 kV, ha hiwere otu vector nke Y/d+15 ogo /d-15 degrees /d.

Na-arụ ọrụ na 50Hz, transformer nwere voltaji bụ isi nke 132kV na voltaji nke abụọ nke 2 × 1.22kV (maka traction) gbakwunyere ikuku nke 2.36kV / 100kVA (maka ndị ntụgharị inyeaka). Igwe ikuku ọla kọpa (disiki na-aga n'ihu maka HV, spiral maka LV) na-enye ike ọrụ siri ike, na-ejigide 30 nkeji 2x, 1 nkeji 3x, na 10-sekọnd 3.5x buru ibu (na-ebugharị na ibu 4.25x).

Emebere ya na gburugburu South Africa (0{7}}1800m elu, -10 ogo na +55 ogo okpomọkụ, 10%-90% iru mmiri, mmetọ dị arọ), ihe ngbanwe ahụ nwere tank na-adịgide adịgide nke a rụrụ site na Greater karịa ma ọ bụ hà nhata 6mm ígwè efere (16mm thick base) na galvanized radiators na agba nchebe, na-eguzogide corro ogologo oge.

N'ịbụ onye ejiri ihe nchekwa capsule, ihe na-amịpụta mmiri, na ngwaọrụ nleba anya, ọ na-edobe mkpuchi kacha mma (LI60AC20kV maka windings LV/tertiary).

A na-ebute nchekwa na ịrụ ọrụ ụzọ site na ngwa ngwa zuru oke: ihe mgbanyụ ọkụ{{0}loader (± 2×2.5% na arụ ọrụ mkpọchi), gas relay with oti mkpu na kọntaktị njem, bufee thermal relay (ya na nkwụ ụgwọ okpomọkụ na 115 ogo njem nhazi), valve enyemaka nrụgide, na igbe IP55-erere ọnụ. Nrube isi na mmachi akụkụ siri ike- dị ka akụkụ ndụ dị 3950mm n'elu ala yana ịdị elu nke oke ọhịa agaghị agafe 2.7m{10}} na-eme ka enweghị nkebi na{11}nwụnye saịtị yana ndakọrịta na bọsbar voltaji dị ugbu a.

Site na mkpuchi zuru oke na windings niile, ike igwe arụpụtara maka nguzogide dị ugbu a, yana nrube isi n'ụkpụrụ ogo mba ụwa, traktọ traktị a dabara nke ọma maka ọkụ ọkụ dị elu{0}} na sistemu traktị ụgbọ oloko, ụlọ ọrụ mmepụta ihe, na ọrụ akụrụngwa ndị ọzọ dị oke mkpa, na-ebuga arụmọrụ nke ọma, nchekwa yana na-agbanwe agbanwe ọbụlagodi na gburugburu ebe ihe ịma aka.

1.2 Nkọwa nka nka

5050kVA traction transformer ụdị nkọwa na mpempe akwụkwọ data

1.3 Eserese

5050 kVA ụgbọ okporo ígwè ntụgharị eserese eserese na nha.

02 Nrụpụta

2.1 Onye nchekwa mmanụ

Onye nchekwa mmanụ, nke a makwaara dị ka tank mgbasawanye, bụ ụgbọ mmiri cylindrical nke etinyere n'elu isi tank nke ihe ntụgharị traction. Ọrụ ya bụ isi bụ ịnabata mgbasawanye ọkụ na mbelata nke mmanụ mkpuchi. Ka mmanụ na-ekpo ọkụ n'oge a na-arụ ọrụ, ọ na-agbasawanye ma na-abanye na nchekwa nchekwa; ka ọ na-ajụ oyi, ọkwa mmanụ na-ala azụ. Usoro a na-edobe nrụgide dị mma ma na-egbochi ikuku ịbanye na isi tank. Onye nchekwa ahụ nwere ihe ngosi ọkwa mmanụ maka nlele anya wee jikọọ ya na nnukwu tank site na ọkpọkọ. Ọ na-etinye ume iku ume silica gel iji mee ka ikuku ọ bụla na-abanye n'ime oghere dị n'elu mmanụ, si otú ahụ na-echekwa mmanụ dielectric mmanụ na igbochi mmiri ịbanye.

2.2 Na-ekpo ọkụ-Dịp Galvanized Radiator

Igwe ọkụ na-ekpo ọkụ- nke na-ekpo ọkụ galvanized radiator bụ ihe dị mkpa na-ajụ oyi maka ngbanwe ụgbọ oloko. Ewubere ya site na mpempe ígwè e kpụrụ ka ọ bụrụ ihe owuwu fin{2}, a na-emikpu ya n'ime zinc a wụrụ awụ iji mepụta mkpuchi siri ike ma na-agbasochi ya. galvanization a na-enye nguzogide corrosion pụrụ iche, dị mkpa maka iguzogide gburugburu ebe dị n'èzí, mmiri mmiri na ihe mmetọ ndị a na-enweta na ngwa ụgbọ oloko. Ndị radiators na-arụ ọrụ nke ọma na-ekpochapụ ọkụ ọkụ site na onye na-agbanwe ọkụ, na-ejigide okpomọkụ kachasị mma. Mkpuchi zinc ha na-adịgide adịgide na-eme ka ogologo ndụ ọrụ na-arụkwa obere ọrụ, na-enye aka ozugbo na ntụkwasị obi nke transformer na ịdị na-arụ ọrụ.

2.3 Igbe Marshalling

Igbe ụgbọ okporo ígwè nke ndị na-agbanwe ụgbọ okporo ígwè na-arụ ọrụ dị ka ebe a na-arụ ọrụ wiring maka unit ahụ: ọ na-enye ọtụtụ oghere ọnụ (maka nhazi akara/ njikọ eriri ọkụ), ihe nchebe (dị ka ndị na-agbaji na relays), na akara akara. Mkpuchi kọmpat a na-eme ka njikwa wiwi dị mfe, na-eme ka nrụzi na nrụzi dị mfe, ma na-akwalite nchekwa ọrụ site na ijikọ njikọ sekit nke ọma na nhazi nke akọwapụtara nke ọma.

2.4 Ikuku ume

Igwe iku ume bụ ngwa dị mkpa etinyere na nchekwa mmanụ nke ihe ntụgharị traction. Ọrụ ya bụ isi bụ igbochi mmiri ịbanye na transformer n'oge usoro iku ume {{1} mgbe ikuku na-abanye ka mmanụ mkpuchi na-ajụ oyi ma na-agbakọ. Ihe na-eku ume na-enwekarị akpa nke jupụtara na silica gel desiccant, nke na-agbanwe agba (na-esi na-acha anụnụ anụnụ gaa na pink) ka ọ na-amịkọrọ mmiri sitere na ikuku na-abata. Usoro mmanụ dị mkpa ma ọ bụ ihe gbagwojuru anya na-eme ka ikuku niile na-abata na-agafe ebe a na-ehicha ihe, na-ehichapụ ya nke ọma. Usoro a na-echebe mmanụ mkpuchi na mkpuchi siri ike site na mmebi, si otú ahụ na-ejigide ike dielectric nke transformer na ntụkwasị obi arụmọrụ na ọnọdụ gburugburu ebe obibi dị iche iche.

2.5 Terminal Earthing Maka Core

Ọnụ ala ala maka isi bụ ihe siri ike, corrosion - ebe njikọ mpụga na-eguzogide na tank nke transformer. Naanị ọrụ ya bụ ịnye njikọ ala na-adịgide adịgide, dị ala - maka isi ihe ndọta nke transformer. Site na ijikọ isi laminations n'ụwa, ọ na-agbapụta n'enweghị nsogbu na ebubo kwụ ọtọ ma ọ bụ ikike dị ize ndụ nke mkpagharị akpafu kpalitere, na-egbochi ịgba ọkụ n'ime yana hụ na nchekwa arụ ọrụ. Otu - ntọ ala a dị mkpa maka ịrụ ọrụ ntụkwasị obi na ntụkwasị obi nke ihe ntụgharị traktị n'ime usoro ụgbọ oloko.

2.6 Gbanyụọ-Crcuit Tap Changer

Onye na-agbanwe mgbanwe nke ụgbọ okporo ígwè {{0}circuit tap tranformers bụ ihe anaghị ebugharị{1}: ọ na-edozi ntụgharị ikuku (mgbe a na-eme ka transformer na-eme ka ọ dị mma-tuo voltaji mmepụta, ma na-enwe ọkụ ọkụ atọ- jikọtara ya site na igwe igwe. Tupu ikenye ume, ọ dị oke mkpa iji nyochaa usoro ọkụ atọ ahụ-a na-emekọrịtara ọnụ{7} nke a gụnyere ịlele ihe ngosi ọnọdụ ha ma ọ bụ njikọ igwe iji gosi na usoro niile na-anọdụ ala n'otu ọnọdụ mgbata, nke na-ezere enweghị ahaghị nhata, oke ibu mpaghara, ma ọ bụ mmebi akụrụngwa, na-ahụ na ụkpụrụ voltaji ziri ezi na ịrụ ọrụ nchekwa.

03 Nnwale

Nyochaa oke na polarity nke arụrụ arụ{{0} n'ime ihe ngbanwe dị ugbu a bụ ule a na-eme kwa ụbọchị maka traktọgharị traktọ (a na-eme ya na ogo mmanụ dị ogo 8), na-ezubere ya wuru{2} n'ime ihe ngbanwe dị ugbu a. Ọ na-achọpụta na ọnụ ọgụgụ aha (dịka, 50/1, 50/5 maka Phase A) dakọtara na nha nha n'ofe A/B na ụdị dị iche iche (LR-132, LRB-132), na-akwado polarities ziri ezi (akara akara "- (ziri ezi)")), na-atụ ihe mgbochi DC (dịka ọmụmaatụ, 5'3 Ω3). na-enyocha na mgbochi mkpuchi dị ukwuu karịa ma ọ bụ ha nhata na 5GΩ-n'ịhụ na ndị na-agbanwe agbanwe ugbu a na-agbaso ụkpụrụ paramita ma na-akwado nleba anya / nchebe ugbu a maka ntụgharị traction.

04 Saịtị na nchịkọta

Dị ka isi ihe ngbanwe ike nke sistemu ụzọ ụgbọ oloko, ndị na-agbanwe ụgbọ okporo ígwè na-akwado ọrụ nchekwa, ịrụ ọrụ nke ọma na kwụsiri ike nke locomotives na EMU. Emebere ya maka ọnọdụ ụgbọ okporo ígwè siri ike, ọ na-eweta arụmọrụ na-adịghị mma, mfu dị ala yana ogologo oge- ntụkwasị obi. Anyị na-aga n'ihu n'ichepụta teknụzụ na imepụta teknụzụ iji kwado ihe ngwọta traction nke dabara na mkpa na-agbanwe nke ụgbọ okporo ígwè zuru ụwa ọnụ, na-eme ka njem njem ụgbọ oloko dị larịị ma na-adigide n'ụwa niile.