Danab line ee shabakadaha korontada

had iyo jeer waxaa laga heli karaa in aad in laan kasta oo nooc injineernimada of echo wakhtiyadii hore, kuwaas oo horyaalka, ka tarjumaysa nooc ka mid ah taariikhda horumarka ee jihada this. Iyo wax yar oo weliba ogaataan in mid ama fikradda farsamo kale ayaa jidka dheer si ay u noqoto, la qabatimo, oo bilowga ah ee uu ku dhashay bogaga kale, inta badan aad u badan, talaabo horumar farsamada. Sidaas daraaddeed, tusaale ahaan, waa mid caadi ah in ay maqlaan hadal "danab saddex waji" dhexdooda shuruudaha korontada "danab line" ah, "permanent" ama "AC danab" iyo magacyo badan oo kale la erayga "stress".

Marka hore, sida qiimaha jirka danab waxaa lagu qeexaa sida farqiga u of kartiyo duurka korontada in oofin karin shaqada on dhaqdhaqaaqa la'aan korontada ka hal dhibic si ay u beer kale. In tamarta lacag beerta barakaca la wada baabbi'iyey, si kastaba ha ahaatee, qiimaha, ama in ka badan si hufan, farqiga u iman kara waa la dhimay si eber. In circuit dhabta xidhan dhaqdhaqaaqa eedeeyay korontada waxaa lagu daaweeyaa sida hadda koronto - natiijada dhaqdhaqaaqa electron ka hal dhibic si silsilad oo kale. Si uusan wax iska beddeleen, waxaa lagama maarmaan ah si ay u ilaaliyaan farqi danab joogto ah. Sida la og yahay, dayactirka ah ee hadda ku soo wareegi jiray ee "og yahay" korontada ah. ka iyo go'aamiyo haddii hadda soo wareegi jiray waxay noqon doontaa joogto ah, ie, aysan waxba ka beddelin magnitude iyo jihada, ama variable, beddelo sharciga qaar ka mid ah sida. Erayga "danab line" The macno oo keliya shabakadaha ee talantaalli ah hadda.

Waxaa ugu ballaaran loo adeegsaday injineernimada korontada helay danab AC ruxruxo Culumida Soomaaliyeed. The qiimaha danab ugu badan marka loo yaqaan oscillation Ilodanimada ua. Waayo, danab noocan oo kale ah ka codsan unit dheeraad ah - F soo noqnoqoshada iyo ψ wajiga. inta jeer waxaa go'aamiya tirada oscillations halkii mar unit, iyo wajiga - Waa markii ugu mowjadda dhibco isku mid gariirka. Sidaas Taariikh ahaan, ereyga "wejiga" yimid in loogu yeedho, iyo xoogga line danab AC, haddii ay qayb ka mid ah nidaamka ka mid ah wejiyada badan yahay - sida caadiga ah saddex. network saddex waji ahaa guusha kale oo injineernimada koranto oo faa'iidooyin badan oo aan suurtogal aheyn in ay gudbaan waa. Iyo ugu muhiimsan ee iyaga ka mid ah - taasi waa fursad aad u fudud, dhab ahaantii, iyada oo aan wax dadaal ah si aad u hesho a beerta magnetic qoqobada - mabda'a aasaasiga ah ee hawlgalka motor kasta. The circuit saddex waji kala saaro wajiga iyo danab wajiga, oo ay feature been in kasta oo wejiyada la mowjadda marka la eego labada kale +/- 120 digrii. wajiga matoor The danab waa windings wax soo saarka, kuwaas oo qaab ahaan ku qeexan wareejin wajiga. Mid kasta oo ka windings ah wuxuu leeyahay dhammaansho iyo bilowgii a: N1-K1, K2, H2, H3, K3. In nidaamka saddex waji leh, waxaa jira laba fursadaha xiriir wajiga - "star" iyo "Delta".

Marka xidhiidhinaya ah "star" darafyadiisa oo dhan ay ku xidhan yihiin hal dhibic - "gabagabo 0" iyo bilaabaan adeegaya darafyadiisa terminal ee matoorka iyo qalab talooyin ku waayo, waxaa iyaga ku dar galiyeen. In nidaamka noocan oo kale ah, danab line - waa qiimaha qiyaasay inta u dhaxaysa labada nin mid ka mid ah wax soo saarka darafyadiisa H1, H2, H3, oo loogu yeero Ulin. Waxaa jira sifo kale oo saddex waji ah - danab wajiga. Waxaa la muujinaysaa ee Ismaamulka Soomalida oo wuxuu qiyaasay inta u dhaxaysa dhibcood "0 wax soo saarka", oo ka mid ah outlet dhamaado K1, K2 iyo K3. Kantaroolka ee faahfaahin ah, waa in la ogaadaa in, ku salaysan jaantus phasor shabag saddex waji leh oo ku, xiriirka ka dhexeeya voltages Ulin = Ѵ3 * Ismaamulka Soomalida. Marka isku Xidhka "xagalka" darafyadiisa windings ku xiran yihiin in giraan ah: K1-H1-H2-K2-K3-K1-H3. Xarunta kasta oo ay dhammaadeen - bilaabi "waa wax soo saarka, iyo wixii danab line yahay wajiga kala duwan, i.e., Ulin = Ismaamulka Soomalida. Waxa xiiso leh in is barbar dhexeeya danab joogto ah Udir iyo danab talantaalli Ilodanimada ua, tus, oo ku salaysan tamarta isla ahbaa in load ah. Waayo, haddii ay taasi Udir = Ѵ2 * ua.

Taasi waa sababta oo ah muddo tobannaan sano la aruursaday aqoonta ku saabsan nooca iyo dabiiciga ah ee korontada, iyo fikradda aamusnaan fudud ee "stress" ayaa helay shuruudaha la xiriira, wanaajisaa awoodda aan u leenahay in la isticmaalo dhacdo dabeeci ah in baahida aadanaha.