Seti ya jenereta nthawi zambiri imakhala ndi injini, jenereta, makina owongolera, makina ozungulira mafuta, ndi makina ogawa mphamvu. Gawo lamphamvu la jenereta lomwe lili mu makina olumikizirana - injini ya dizilo kapena injini ya turbine ya gasi - kwenikweni ndi lofanana pamakina opanikizika kwambiri komanso otsika; Kapangidwe ndi kuchuluka kwa mafuta a makina amafuta zimagwirizana kwambiri ndi mphamvu, kotero palibe kusiyana kwakukulu pakati pa magulu opanikizika kwambiri ndi otsika, kotero palibe kusiyana pa zofunikira pamakina olowetsa mpweya ndi otulutsa mpweya a mayunitsi omwe amapereka kuziziritsa. Kusiyana kwa magawo ndi magwiridwe antchito pakati pa ma seti a jenereta amphamvu kwambiri ndi ma seti a jenereta amphamvu kwambiri kumaonekera makamaka mu gawo la jenereta ndi gawo la makina ogawa.
1. Kusiyana kwa voliyumu ndi kulemera
Ma jenereta amphamvu amagwiritsa ntchito majenereta amphamvu kwambiri, ndipo kuwonjezeka kwa mphamvu yamagetsi kumapangitsa kuti zofunikira zawo zotetezera kutentha zikhale zapamwamba. Mofananamo, mphamvu ndi kulemera kwa gawo la jenereta ndi zazikulu kuposa za mayunitsi amphamvu otsika. Chifukwa chake, mphamvu yonse ya thupi ndi kulemera kwa seti ya jenereta ya 10kV ndi zazikulu pang'ono kuposa za gawo lamagetsi otsika. Palibe kusiyana kwakukulu pakuwoneka kupatula gawo la jenereta.
2. Kusiyana kwa njira zokhazikitsira nthaka
Njira zokhazikitsira nthaka ya majenereta awiriwa ndizosiyana. Kuzungulira kwa unit ya 380V kumalumikizidwa ndi nyenyezi. Kawirikawiri, makina otsika a voltage ndi makina osalowerera ndale, kotero malo osalowerera ndale a jenereta omwe ali ndi nyenyezi amakonzedwa kuti azitha kuchotsedwa ndipo amatha kukhazikika mwachindunji ngati pakufunika. Makina a 10kV ndi makina ang'onoang'ono okhazikitsira nthaka, ndipo malo osalowerera nthawi zambiri sakhala pansi kapena pansi chifukwa cha kukana kukhazikika. Chifukwa chake, poyerekeza ndi mayunitsi otsika a voltage, mayunitsi a 10kV amafunika kuwonjezera zida zogawa malo osalowerera monga makabati okana ndi makabati olumikizira.
3. Kusiyana kwa njira zodzitetezera
Ma jenereta amphamvu kwambiri nthawi zambiri amafuna kuyika chitetezo cha kusweka kwachangu kwamagetsi, chitetezo chochulukirapo, chitetezo cha nthaka, ndi zina zotero. Ngati chitetezo cha kusweka kwachangu kwamagetsi sichikukwaniritsa zofunikira, chitetezo chosiyana cha kutalika kwa magetsi chingathe kuyikidwa.
Ngati vuto la nthaka litachitika pakugwira ntchito kwa jenereta yamagetsi amphamvu, limabweretsa chiopsezo chachikulu kwa ogwira ntchito ndi zida, motero ndikofunikira kukhazikitsa chitetezo cha nthaka.
Malo osalowerera a jenereta amakhazikika kudzera mu resistor. Pamene vuto la kukhazikika kwa gawo limodzi lachitika, mphamvu yamagetsi yomwe ikuyenda kudzera mu neutral point imatha kuzindikirika, ndipo chitetezo cha kugwedezeka kapena kutsekedwa chikhoza kupezeka kudzera mu chitetezo cha relay. Malo osalowerera a jenereta amakhazikika kudzera mu resistor, yomwe ingachepetse mphamvu yamagetsi mkati mwa curve yovomerezeka ya jenereta, ndipo jenereta imatha kugwira ntchito ndi zolakwika. Kudzera mu kukana kukhazikika, zolakwika za kukhazikika zimatha kuzindikirika bwino ndipo zochita zoteteza kubwereza zimatha kuyendetsedwa. Poyerekeza ndi mayunitsi otsika mphamvu, ma seti a jenereta amphamvu kwambiri amafunika kuwonjezera zida zogawa malo osalowerera monga makabati otsutsana ndi makabati olumikizana.
Ngati kuli kofunikira, chitetezo chosiyana chiyenera kukhazikitsidwa pa ma seti a jenereta amphamvu kwambiri.
Perekani chitetezo cha mphamvu yamagetsi cha magawo atatu pa stator winding ya jenereta. Mwa kuyika ma transformer amagetsi pama terminals awiri otuluka a coil iliyonse mu jenereta, kusiyana kwa mphamvu yamagetsi pakati pa ma terminal olowa ndi otuluka a coil kumayesedwa kuti adziwe momwe coil imakhalira yotenthetsera. Pamene short circuit kapena grounding ichitika m'magawo awiri kapena atatu, mphamvu yamagetsi imatha kupezeka m'ma transformers onse awiri, motero chitetezo chimayendetsedwa.
4. Kusiyana kwa zingwe zotulutsa
Pansi pa mulingo womwewo wa mphamvu, m'mimba mwake wa chingwe chotulutsira mayunitsi amphamvu kwambiri ndi wocheperako kuposa wa mayunitsi amphamvu otsika, kotero zofunikira pakukhala m'malo mwa njira zotulutsira ndi zochepa.
5. Kusiyana kwa Machitidwe Olamulira Ma Unit
Dongosolo lowongolera mayunitsi a mayunitsi otsika mphamvu nthawi zambiri limatha kuphatikizidwa mbali imodzi ya gawo la jenereta pa thupi la makina, pomwe mayunitsi amphamvu nthawi zambiri amafunikira bokosi lowongolera mayunitsi lodziyimira pawokha kuti likonzedwe padera ndi chipangizocho chifukwa cha mavuto osokoneza ma signaling.
6. Kusiyana kwa zofunikira pakukonza
Zofunikira pakukonza mayunitsi opanga magetsi amphamvu kwambiri m'mbali zosiyanasiyana monga makina oyendera mafuta ndi makina olowetsa mpweya ndi otulutsa mpweya ndizofanana ndi za mayunitsi opanga magetsi ochepa, koma kugawa mphamvu kwa mayunitsiwo ndi makina amphamvu kwambiri, ndipo ogwira ntchito yokonza ayenera kukhala ndi zilolezo zogwirira ntchito zamagetsi amphamvu kwambiri.
Nthawi yotumizira: Meyi-09-2023
