Symmetric Overload Dziviriro YeGenset

Low frequency accumulation protection

Low frequency cumulative dziviriro inoratidza kuwedzera kweiyo system frequency kuderedzwa pane turbine.Dziviriro inoumbwa neanonzwa frequency relay uye counter, yakavharwa neiyo yekubatsira yekubata weoutlet wedunhu breaker (kureva, kana jenareta yamira kumhanya, yakaderera-frequency accumulative dziviriro inomirawo kumhanya).Kana iyo accumulative system frequency yakaderera pane frequency kuseta kukosha kwe47.5Hz, kana nguva yekuunganidza inosvika pakurongeka kwe3000 masekonzi, chiito chinotumira chiratidzo chekunonoka kwemasekonzi makumi matatu.Chishandiso chinogona kutariswa munguva chaiyo panguva yekushanda: kukosha kwekugara, frequency F uye nguva yakaunganidzwa inoratidzwa.Kudzivirirwa kwakasiyana kwejenareta transformer, kusiyanisa kuchengetedzwa kweshanduko uye kusiyanisa kuchengetedzwa kweyakakwira voltage transformer ndiyo inonyanya kudzivirirwa kubva kune interphase pfupi yedunhu kukanganisa kwezvinhu zvakachengetedzwa.Muchiitiko chekunze-kwe-zone kukanganisa, kusaenzana kwezvino kunokonzerwa nekusawirirana kweCT maitiro ega ega ega kunogona kudzivirirwa zvakavimbika, uye in-zone chengetedzo yekukanganisa ine hunhu hwekuita.Kuti udzivise kudzivirira misoperation pasi petransformer inrush ikozvino, dziviriro inotora yechipiri harmonic kukiya.Dziviriro ine basa rekubvisa iyo inosiyanisa ikozvino pasina kuvhara yechipiri harmonic.Kana kusiyanisa ikozvino kunosvika pamutengo wakaiswa, kukanganisa kunobviswa pakarepo.Dziviriro ine CT mutsara wekuvhara yekuvhara basa (isina kunyatso shandiswa).CT mutsara wekuputsa kusarura kwakafanana nejenareta kusiyana kwekudzivirira.

Excitation redunhu overload kudzivirira

Excitation loop overload dziviriro inoshandiswa kune rotor excitation kudzoka ichipfuura ikozvino kana overload kudzivirira, iyo yakakamurwa kuita zvikamu zvitatu, zvinosanganisira yakatarwa nguva uye inverse nguva.

Chiito chezvino chechikamu chenguva yakatarwa chinoiswa maererano nemamiriro ezvinhu ekuti inogona kudzoka zvakavimbika pasi peiyo yakayerwa ikozvino yekushanda kwakajairika.Inoshanda pachiratidzo uye inoderedza ikozvino kunakidza mushure menguva yenguva T1 (5s) (mugumisiro wekuderedza ikozvino kunakidza hakubatsiri);Chiito chemaitiro ekupikiswa kwenguva yakatarwa inotarwa zvichienderana nekuwanda kwehuwandu hwejenareta excitation windings, uye chiito chekudzivirira ndechekudzima chitima.Iyo yakanyanya counter time yakatarwa masekonzi gumi.

Jenareta rotor point grounding dziviriro

Imwe-point grounding protection ye generator rotor inoshandiswa kuratidza imwe-point grounding kukanganisa kwe generator rotor circuit.Dziviriro inotora ping-pong switching musimboti.Iyo yakanaka uye yakaipa voltage yedunhu re rotor kusvika pasi inotorwa zvakatevedzana, uye iyo rotor grounding kuramba uye nzvimbo yepasi inoverengerwa munguva chaiyo nekugadzirisa maviri akasiyana grounding circuit equations.Mushure mekunonoka kwemasekonzi maviri, murindi anoshanda kune chiratidzo.

Symmetric overload dziviriro ye jenareta

Chishandiso chekudzivirira chine yakatarwa nguva yakatarwa uye inverse nguva muganho.Yakagadziriswa nguva chikamu 5 masekonzi mushure mekunge chiratidzo chaiswa.Iyo inverse time chiitiko chiitiko chinotemerwa zvichienderana nekugona kwejenareta kutsungirira kuwandisa kwazvino, uye chiito ndechekugadzirisa dambudziko.Chidziviriro chekudzivirira chinogona kuratidza nzira yekuchengetedza kupisa kwejenereta stator.

Jenareta yakaipa kutevedzana kuwanda kudzivirira

Chishandiso chekudzivirira chine yakatarwa nguva yakatarwa uye inverse nguva muganho.Iyo yakatarwa nguva yekuita ikozvino inotarirwa maererano neakaipa kutevedzana kwezvino kukosha iyo jenereta inobvumira kwenguva yakareba uye kukosha kwezvino kudzivirira kusaenzana kweiyo yakaipa sequence ikozvino sefa pasi pemutoro mukuru, uye inoshandiswa kune chiratidzo mushure me3- muganhu wenguva yechipiri.Iyo inverse time chiito hunhu inotemerwa zvinoenderana nekugona kwejenareta kumirisana neakaipa kutevedzana ikozvino, uye chiito ndechekugadzirisa demagnetization.Chidziviriro chekudzivirira chinogona kuratidza nzira yekuchengetedza kupisa kwejenareta rotor.

Guangxi Dingbo Power Equipment Manufacturing Co., Ltd. yakavambwa muna 2006, inogadzira dhiziri jenareta muChina, iyo inobatanidza dhizaini, kugovera, kutumira uye kugadzirisa dhiziri jenareta.Chigadzirwa chinofukidza Cummins, Perkins, Volvo, Yuchai, Shanghai, Deutz, Ricardo, MTU, Weichai etc. ane simba renji 20kw-3000kw, uye vave yavo OEM fekitari uye tekinoroji centre.