80 MVA Nzọụkwụ Down Power Transformer-132/33 kV|South Africa 2024

01 Izugbe

1.1 Ihe ndabere oru ngo

A na-ebupụ nkeji abụọ nke 80/50MVA Power transformer na South Africa na Julaị, 2024. Ike a kwadoro bụ 50 MVA na usoro jụrụ oyi nke ONAN. Ike ahụ ruru 80MVA mgbe ọ bụ ONAF. Voltaji bụ 132 ka 33 kV, 132 kV isi, 33 kV nke abụọ. A na-eji ihe ngbanwe abụọ a na-arụ ọrụ na ọdụ ọkụ fotovoltaic na South Africa.

Okpomọkụ dị n'akụkụ ebe nrụnye transformer bụ -5 degrees C ruo +45 ogo C, ogo mmetọ gburugburu ebe obibi dị njọ, na oke iru mmiri bụ 85%. Nke a na-achọ ka igbe transformer nwee ike ime mgbanwe na gburugburu ebe dị iche iche siri ike. Igwe ọkụ abụọ anyị rụpụtara nwere igbe dị elu-, elu igbe ahụ na-anabata ihe mgbochi corrosion na ọgwụgwọ agba pụrụ iche, ọkpụrụkpụ agba dị n'elu 125mm, nke nwere ike igbochi mbuze nke ájá na ihe ndị ọzọ na-emerụ ahụ. Igwe ọkụ mgbawa nke ihe ngbanwe a na-anabata usoro pụrụ iche nke itinye galvanizing ọkụ. Na mgbakwunye, akwa mkpuchi dị elu na nke dị ala nwere eriri njide galvanized. Ekwesịrị ịchebe sekit njikwa niile nke transformer, na ebe na-anọpụ iche voltaji dị elu kwesịrị ka ala ala. Ohiri isi mmanụ ọ bụla na-abịa na ohiri isi mmanụ capsule na onye na-anakọta ihicha.

1.2 Nkọwa nka nka

80 MVA ike transformer nkọwa na mpempe akwụkwọ data

1.3 Eserese

80 MVA ike transformer eserese na nha.

02 Nrụpụta

2.1 Isi

Akụkụ akụkụ nke ọ bụla nke isi na-akwado windings transformer, na nha na ọdịdị nke akụkụ ụkwụ a haziri dabere na ike egosipụtara (80MVA) na ọkwa voltaji. Akụkụ kwụ ọtọ nke isi, nke a na-akpọ yoke, jikọtara akụkụ atọ dị n'elu na ala, na-eme sekit magnetik mechiri emechi. A na-eme isi ya bụ nke dị elu-permeability, obere oyi-oyi mfu -ọka kpọchiri akpọre -slicon steel sheets iji wedata isi mfu (gụnyere hysteresis na mfu ugbu a). Isi ụkwụ na yok na-etolite sekit magnetik mechiri emechi. A na-ekesa flux magnetik n'akụkụ akụkụ atọ ndị ahụ, na-enwe mgbanwe nke akụkụ nke ọ bụla na-agafe na yok wee jikọta ya na akụkụ abụọ ndị ọzọ, na-eme ka ngbanwe nke usoro atọ- guzozie eguzozie.

2.2 Ikuku

Ọnụọgụ ntụgharị, obe{0}akụkụ mpaghara nke onye nduzi, na oghere nke ngalaba ọ bụla na-adabere na ọkwa voltaji nke transformer, ikike ike na ihe achọrọ ugbu a. Ebe ọ bụ na ikuku na-aga n'ihu, a na-ekesa oghere magnetik n'otu n'otu n'ofe ikuku, na-ebelata mmetụta nke ntanye ntanye. Ntụgharị ahụ nwere oghere n'otu n'otu na-eme ka nkesa voltaji dị larịị, na-ebelata nrụgide n'etiti{3} na nsogbu mkpuchi. Nhazi siri ike nke akụkụ ikuku na-eme ka sekit magnetik mechie, na-ebelata mmeghachi omume ntanye ma na-emeziwanye arụmọrụ mgbanwe.

2.3 tank

1. Mgbe ọkpụrụkpụ nke efere nchara n'akụkụ igbe ahụ na-erughị 12mm, a na-eji ihe eji eme ihe na-edozi ahụ nke Q235, a na-eji igwe ọkpọ ọkụ na-ebipụ ihe ọkpụkpụ. Mgbe ọkpụrụkpụ nke efere nchara n'akụkụ igbe ahụ> 12mm, a na-eji efere ígwè nke Q235 eme ihe, a na-egbutukwa ihe ahụ site na CNC ọkụ / plasma ịkpụcha igwe.

2. A na-eme ala nke tank tank nke Q235 ígwè efere. Mgbe ọkpụrụkpụ nke efere ígwè ahụ na-erughị 14mm, a na-eji igwe ịkpụ. Mgbe ọkpụrụkpụ nke efere ígwè dị> 16mm, jiri igwe ịkpụ CNC na-egbutu ihe.

Mgbe agbakọtara mgbidi igbe ahụ, a na-eme ọgwụgwọ kemịkalụ dịka usoro OFL.140.5060 pickling phosphating si dị.

3. Ihe mkpuchi nke tankị nke na-agbanwe agbanwe bụ nke Q235 efere ígwè. Mgbe ọkpụrụkpụ nke efere ígwè ahụ na-erughị 14mm, a na-eji igwe ịkpụ. Mgbe ọkpụrụkpụ nke efere ígwè dị> 16mm, jiri igwe ịkpụ CNC na-egbutu ihe.

2.4 Mgbakọ ikpeazụ

03 Nnwale

04 Mbukota na mbupu

05 Saịtị na nchịkọta

Uru nke na-ekpo ọkụ itinye galvanizing

Maka radiators mgbawa maka ndị na-agbanwe ike 80 MVA, usoro ịgbanye ọkụ na-ekpo ọkụ na-enye ọtụtụ uru dị mkpa:

• Nguzogide corrosion: Ngwunye galvanizing na-ekpo ọkụ na-ekpo ọkụ nwere ike igbochi nbibi nke ikuku na mmiri na metal ma melite ndụ ọrụ nke radiator, karịsịa na ebe mmiri ma ọ bụ nke na-emebi emebi.

• Yiri ngbochi: Igwe galvanized oyi akwa nwekwara ike ịbawanye nguzogide mkpuchi nke ikpo ọkụ, na-eme ka ọ ghara imebi na esemokwu anụ ahụ ma ọ bụ nkukota.

• Ndozi dị mfe: Igwe ọkụ na-ekpo ọkụ galvanized radiators na-achọ ihe fọrọ nke nta ka ọ bụrụ mmezi ọzọ, na-ebelata mkpa na ọnụ ahịa nke mmezi.

• Melite arụmọrụ ikposa ọkụ: Ọ bụ ezie na galvanizing na-ekpo ọkụ na-ekpo ọkụ na-abụkarị maka mgbochi corrosion, ọ nwere ike imeziwanye arụmọrụ ikposa ọkụ n'ụzọ na-apụtaghị ìhè site n'idebe elu nke radiator dị larịị na nchara-free.