Ruzivo rwekutanga rwemagetsi ekufambisa tambo

封面

一、 Main midziyo yemagetsi ekufambisa tambo:

Iyo magetsi ekufambisa tambo inzvimbo yemagetsi inoshandisa insulators uye inoenderana hardware kumisa conductors uye pamusoro.

waya dzepasi pamatanda neshongwe, batanidza zvidyarwa zvemagetsi uye zviteshi, uye kuzadzisa chinangwa chekufambisa magetsi.Ndiko kunyanya

inoumbwa nekondakita, pamusoro pevhu waya, insulator, hardware, shongwe, hwaro, yekugadzika mudziyo, nezvimwe.

1. Conductor: basa rayo rinonyanya kutumira simba remagetsi.Iyo mutsara conductor ichave yakanaka conductivity, yakakwana mechanical

simba, kuzununguka kuneta kuramba uye kuramba kuora kwemakemikari tsvina mumhepo.Ichave iine mabundle conductor mhando

inoumbwa nemakondakita maviri kana mana pachikamu.

2. Overhead pasi waya: inonyanya kushandiswa kudzivirira mheni.Nekuda kwekudzivirira kwewaya pamusoro pevhu kune conductor uye

kubatanidza pakati pe conductor uye pamusoro pevhu waya, mukana wemheni inorova zvakananga conductor inogona kuderedzwa.Rini

mheni inorova shongwe, chikamu chemheni yazvino inogona kutsauswa kuburikidza nepamusoro pevhu waya, nekudaro ichidzikisa shongwe yepamusoro.

kugona uye kuvandudza mheni inomira pamwero.The overhead pasi waya inowanzo galvanized steel strand.Parizvino, zvakanaka

maconductor akadai sesimbi cored aluminium strand uye aluminium clad simbi strand anowanzo shandiswa kuderedza simba frequency overvoltage.

uye yechipiri arc ikozvino kana iri asymmetric short circuit.Optical cable composite pamusoro pevhu waya ichashandiswa kune vane

kutaurirana basa.

3. Insulator: Inoreva chinhu chinogadzirisa uye chinomisa conductor pashongwe.Common insulators yemagetsi ekufambisa mitsara

zvinosanganisira: disc porcelain insulator, disc girazi insulator uye tsvimbo kuturika composite insulator.

(1) Disc porcelain insulator: mudzimba porcelain insulator ine yakanyanya kudzikira mwero, inoda zero kukosha kuona uye inorema.

kuchengetedza.Muchiitiko chekurova kwemheni uye kusvibiswa kwemhepo, zviri nyore kukonzera tsaona dzekudonha kwetambo, iyo yakabviswa.

(2) Disc glass insulator: Iine zero value self explosion, asi self explosion rate yakadzikira (kazhinji akati wandei gumi rezviuru).Hapana kuongorora

inodiwa pakugadzirisa.Muchiitiko chekuzviputika kwegirazi rakadziya, simba rayo remagetsi rinosara richisvika kupfuura 80% ye

kuputsa simba, uye kushanda kwakachengeteka kwemutsara kunogona kuvimbiswa.Muchiitiko chekurova kwemheni uye kupenya kwekusvibisa, pachange pasina

chain drop accident.Yakave ichishandiswa zvakanyanya muGrade I uye II nzvimbo dzetsvina.

(3) Rod kuturika composite insulator: ine mabhenefiti eakanaka anti kusvibiswa flashover performance, huremu huremu, yakakwira mechanic.

simba, kushomeka kwekugadzirisa, nezvimwewo, uye yakashandiswa zvakanyanya muGiredhi III uye pamusoro penzvimbo dzakasvibiswa.

4. Hardware

Simba rekufambisa mitsara yemagetsi inogona kukamurwa kuita: clamp type, yekubatanidza mafittings, yekubatanidza mafittings, ekudzivirira ekuisa uye kudhonza waya.

fittings maererano nekuita kwavo kukuru uye kushandiswa.

(1) Clamp type: suspension clamp: inoshandiswa kugadzirisa conductor pane yakamiswa insulator tambo ye tangent pole neshongwe, kana kuturika iyo

overhead ground wire pane overhead ground waya tsigiro ye tangent pole neshongwe.

Strain clamp: inoshandiswa kugadzirisa conductor kana waya yepasi pamusoro petambo ye insulator tambo yekumisa.Pane zvikamu zvitatu

ye strain clamps, zvinoti: bolt type strain clamps;Compression type strain clamp;Wedge clamp.Bolt type strain clamp: inoshandiswa kugadzirisa iyo

conductor nefiction effect inogadzirwa ne vertical pressure ye U-shaped screw uye wavy groove ye clamp.Compression type

tension clamp: inoumbwa nealuminium chubhu uye simbi anchor.Iyo simbi anchor inoshandiswa kubatanidza uye kumisa simbi yesimbi yesimbi

cored aluminium strand, wobva wavhara aluminium chubhu muviri kuita simbi yepurasitiki deformation nekumanikidza, kuitira kuti waya

uye conductor inosanganiswa seyese.Kana hydraulic pressure ikashandiswa, mold yesimbi ine zvinoenderana nezvinodiwa ichashandiswa

yekumanikidza ne hydraulic press.Kana kuputika kunoshandiswa, tambo yewaya uye conductor (yepamusoro pasi waya) inogona kuva

kudzvinyirirwa mukati mese kuburikidza nekumanikidza kwekutanga kuputika kana kuputika kwechipiri.

Wedge clamp: inoshandiswa kuisa tambo yesimbi uye kusungirira waya yekugara yewaya yepamusoro uye shongwe yekugara.Inoshandisa simba rekutsemura wedge

kuvhara tambo yesimbi muchisungiso.

(2) Kubatanidza Hardware: yekubatanidza Hardware inoshandiswa kubatanidza insulator tambo neshongwe, waya inosungirira uye insulator tambo, pamusoro pevhu.

wire clamp neshongwe.Inowanzo shandiswa yekubatanidza Hardware inosanganisira bhora musoro wakarembera mhete, mbiya musoro yakaturika ndiro, U-yakaita yakaturika mhete,

kona yekurudyi inorembera ndiro, nezvimwewo.

(3) Kubatanidza fittings: inoshandiswa pakubatanidza makondakita, waya pamusoro pevhu uye jumpers yematanda ekumanikidzika uye shongwe.Izvo zvakapedzwa

kubatanidza mafittings anosanganisira: clamp pressure yekubatanidza fittings, hydraulic connection fittings, bolt connection fittings, explosive pressure.

kubatanidza fittings.

(4) Zvishandiso zvekudzivirira: nyundo inovhundutsa, tsvimbo yezvombo uye waya yekunyorovesa inoshandiswa kuchengetedza conductor uye waya yepasi kubva pakudengenyeka;

Spacer inoshandiswa kudzvinyirira subspan vibration;Chengetedza mhete uye mhete yegiredhi inoshandiswa kuchengetedza insulator tambo kubva kukorona.

(5) Hardware yekugara waya: Hardware yekugadzirisa uye kudzikamisa shongwe kugara waya inosanganisira: inogadziriswa UT mhando clamp;Simbi wire clamp, uye kaviri

kudhonza waya yekubatanidza ndiro, nezvimwe.

5. Shongwe:

Towers dzinoshandiswa kutsigira ma conductor emutsetse wepamusoro uye waya dziri pamusoro pevhu, uye kuona kuti pane chinhambwe chakakwana chekuchengetedza pakati.

makondakita nemakondakita, pakati pemakondakita newaya dziri pamusoro, pakati pemakondakita neshongwe, uye pakati pemakondakita newaya

pasi nezvinhu zvinoyambuka.

6. Hwaro:

Nheyo yacho inonyanya kushandiswa kudzikamisa shongwe uye inogona kutakura simba rekusimudza, kudzika pasi uye nekupidigura nguva inogadzirwa nemitoro yakasiyana siyana.

yeshongwe, conductor uye overhead ground waya.

Nheyo dzakagadzirwa dzakafanogadzirwa dzichashandiswa pamatanda newaya dzekugara.Cast in situ yakasimbisa kongiri hwaro kana kongiri hwaro inofanira

kushandiswa seshongwe yesimbi.Kana zvichibvira, nheyo isina kukanganiswa ichasarudzwa.Kusanganisira: rock nheyo, michina yakawedzera murwi hwaro,

cheka (hafu yakachekwa) hwaro, inoputika yakawedzera murwi hwaro uye yakafinhwa murwi hwaro.

7. Chishandiso chekugadzika pasi:

Iyo inonyanya kuumbwa neyekudzika downlead inobatanidza pamusoro pevhu waya uye mutumbi wepasi (danda) wakavigwa muivhu reshongwe.

Basa guru remudziyo wekugadzika nderekukurumidza kuparadzira uye kuburitsa mheni iripo panyika, kuitira kuchengetedza imwe mheni.

kumirisana nedanho remutsara.Iyo idiki yekudzivirira kwepasi kweshongwe, iyo yakakwirira mheni inomira pamwero.

二、 Terminology yematambo ekufambisa magetsi

1. Span: chinhambwe chakatwasuka chakatwasuka pakati peshongwe mbiri dziri pedyo, inonzi span, inowanzoratidzwa muna L.

2. Sag: yemitsara yakadzikwa yakachinjika, chinhambwe chakatwasuka pakati petambo yekubatanidza yakachinjika pakati pemapoinzi maviri akatarisana

conductor uye nzvimbo yakaderera ye conductor inonzi sag kana sag.Zvakataurwa na f.

3. Distance limit: iyo shoma kureba pakati pe conductor nepasi kana nzvimbo dzakayambuka.Iyo shoma inobvumirwa chinhambwe kubva ku

yakaderera poindi ye general guide line kusvika pasi, kazhinji inoratidzwa mu h.

4. Horizontal span: hafu yehwerengedzo yezvipanza zviviri zviri pedyo inonzi horizontal span, iyo inowanzotaridzwa se.

5. Vertical span: nhambwe yakachinjika pakati penzvimbo dzakaderera dze conductor pakati pezvipamhi zviviri zvakapakana, zvinodaidzwa kuti vertical span uye

inowanzoratidzwa.

6. Mumiririri span: muchikamu chetension, pane kazhinji kacho spans yakawanda kunze kwearc vertical spans.Nekuda kwenzvimbo dzakasiyana uye pasi zvinhu

yakayambuka nekondukita, saizi yespan imwe neimwe haina kuenzana, kukwidziridzwa kwekumisikidzwa kwemutyairi kwakasiyanawo, uye kushushikana kwe

conductor mune imwe neimwe span yakasiyanawo.Zvisinei, kushushikana uye sag ye conductor yakabatana zvakanyanya nespan.Kana span ichichinja, iyo

stress uye sag ye conductor inoshandukawo.Kana imwe neimwe span ichiverengerwa imwe neimwe, iyo mechanical calculation ye conductor ichave yakaoma.Zvisinei,

maconductor echikamu chimwe chete muchikamu chetension anosimbiswa pamwechete panguva yekuvaka.Nokudaro, kudzvinyirirwa kwemutyairi ndiko

yakaenzana muchikamu chese tension, ndiko kuti, conductor stress at the lowest point of the sag of each span yakaenzana.Isu tinotsiva multi span tension

chikamu chine nguva yekufungidzira yakaenzana.Iyi yekufungidzira span iyo inogona kuratidza iyo yese mechanical mutemo wetension inonzi inomiririra span kana

nguva dzose, uye inomiririrwa neLO.

7. Shongwe kureba: kureba kubva panzvimbo yakakwirira yeshongwe kusvika pasi, inonzi tower height.Iyo inoratidzwa neH1.

8. Shongwe zita kureba: nhambwe yakatwasuka kubva kune yakaderera muchinjiko ruoko rweshongwe kusvika pasi inonzi tower nominal height, iyo inodaidzwa.

kusvika sehurefu hwezita uye inoratidzwa muH2.

9. Hurefu hwenzvimbo yekumisa: nhambwe yakatwasuka kubva pakamiswa kondakita kusvika pasi, iyo inonzi kureba kwekumisa.

poindi ye conductor uye inomiririrwa neH3.

10. Mutsetse kuenda kumutsara chinhambwe: nhambwe yakachinjika pakati pezvikamu zviviri zvemakondakita, inonzi mutsara kuenda kumutsara daro, rinoratidzwa muna D.

11. Kuvhurika kwemidzi: nhambwe yakatwasuka pakati pemidzi kana shongwe tsoka dzematanda maviri emagetsi, anonzi kuvhura midzi.Inomiririrwa naA.

.

mutsetse wakatwasuka wewaya iri pamusoro pevhu unonzi detender angle of overhead ground wire.Zvakaratidzwa mukati.

13. Kudzika kwekuvigwa kwedanda neshongwe: Kudzika kwedanda remagetsi (tower base) rakavigwa muvhu rinonzi kudzika kwakavigwa kwedanda neshongwe.Zviri

inoratidzwa muh0.

.

inonzi drain wire kana bow wire.

15. Kurebesa kwekutanga kwe conductor: deformation yekusingaperi (kutambanudza pamwe neaxis ye conductor) kunokonzerwa nekutanga kwekunze kunetsana kwe conductor.

inodaidzwa kuti kutanga kureba kwekondukita.

16. Bundled conductor: imwe chikamu conductor inoumbwa netambo dzakawanda (2, 3, 4), iyo inonzi bundled conductor.Zvakafanana nekukora

iyo "yakaenzana dhayamita" yemutyairi, kuvandudza simba remunda wemagetsi padyo nekondukita, kuderedza kurasikirwa kwekorona, kuderedza kupindira kweredhiyo,

uye nekuvandudza kugona kwekutapurirana kwetambo yekufambisa.

.

pakati pemakondakita matatu haana kuenzana.Kuita kwemutyairi kunoenderana nechinhambwe chiri pakati pemitsetse uye radius yemuitisi.

Naizvozvo, kana conductor asina kuchinjirwa, iyo yechitatu-chikamu impedance haina kuenzana.Kana mutsara wacho wakareba, zvakanyanya kuipa kusaenzana.

Somugumisiro, magetsi asina kukwana uye emazuva ano achagadzirwa, izvo zvichakanganisa kushanda kwejenereta uye kutaurirana kweredhiyo.

Iyo magetsi ekufambisa mitsara dhizaini yedhizaini inotara kuti "munetiweki yemagetsi ine nzvimbo isina kwayakarerekera yakavakirwa, iyo simba rekufambisa.

mutsetse une hurefu hunodarika 100km uchafambiswa”.Conductor transposition inowanzoitwa mu transposition tower.

18. Conductor (pasi) mutsara we vibration: mumutsara, apo mitsetse yekumusoro inoiswa pasi pesimba remhepo perpendicular kune nzira yemutsara, yakagadzikana.

vortex ine imwe frequency inochinjana kumusoro uye pasi ichaumbwa kudivi releeward remitsetse yepamusoro.Pasi pekuita kwevortex kusimudza

chikamu, mitsetse yekumusoro inoburitsa periodic oscillation mundege yavo yakatwasuka, iyo inodaidzwa kunzi overhead line vibration.

 


Nguva yekutumira: Oct-06-2022