MuChina 3-35kV magetsi ekupa uye kugovera sisitimu, mazhinji enzvimbo isina kwayakarerekera haina kudzika.Zvinoenderana nezviyero zveindasitiri yenyika, kana imwe-phase grounding ikaitika, sisitimu inogona kumhanya zvisina kujairika kwemaawa maviri, iyo inoderedza zvakanyanya mari yekushandisa uye inovandudza kuvimbika kweiyo magetsi uye kugovera system.Zvisinei, nekuda kwekuenderera mberi kwekuvandudzwa kwesimba rekugadzirisa simba regadziriro, maitiro ekugadzirisa magetsi ari kuchinja zvishoma nezvishoma kubva kumutsara wekutumira kusvika kumutsara wetambo, uye ikozvino kuyerera kubva kuhurongwa kusvika kumugwagwa capacitor ichave yakakura zvikuru.Kana iyo sisitimu iri imwe-chikamu chakavakirwa, iyo capacitor yekudzivirira ikozvino haisi nyore kujekesa, uye inoshandurwa kuita inopindirana pasi pasi system.Kuwedzeredza kweiyo inodzivirira grounding system uye iyo ferromagnetic parallel resonance overvoltage inokonzerwa nekuwanda kwevoltage ichaisa pangozi kushanda kwakachengeteka kwegedhi remagetsi.The overvoltage of the two-phase protective grounding system yakanyanya kuipa, uye overvoltage level of the mechanical failure phase is 3 to 3.5 times that of all normal operation phase voltages.Kana iyo yakakwira overvoltage ichiitika pane gidhi remagetsi kwemaawa akati wandei, inonyatso kukuvadza kuvharirwa kwemidziyo yemagetsi.Mushure mekudzokororwa kuunganidzwa uye kukuvadzwa kweiyo insulation layer yemidziyo yemagetsi, inokonzeresa iyo isina kusimba point ye insulation layer, inokonzeresa yakashata pasi system ye insulation layer, uye inokonzeresa mbiri-mavara kupfupi-yedunhu tsaona.Uye zvakare, zvinokonzeresa tsaona dzekuchengetedza dzakadai sekutadza kweiyo insulation layer yemidziyo yemagetsi (kiyi kutadza kweiyo insulation layer yemota), kuputika kwetambo, emission point PT yevoltage transformer saturation excitation regulator, kuputika kwe high-voltage arrester, etc. Kuti ugadzirise dambudziko re overvoltage rinokonzerwa nekugara kwenguva refu kwekudzivirira kwemagetsi ekudzivirira pasi, iyo arc suppression coil inoshandiswa kubhadhara ikozvino ye neutralization capacitor, uye mukana wezvakajairwa kuchengetedzwa kwemagetsi. kudzvinyirirwa.Chinangwa cheiyi nzira ndechekubvisa photoelectricity.Parizvino, hazvisi pachena kuti iyo arc suppression coil pachayo ine hunhu hwakawanda, uye haigone kubhadhara zvinobudirira iyo capacitive ikozvino, kunyanya kukuvadzwa kunokonzerwa ne-high-voltage magetsi emidziyo haigone kubhadharwa pakuda.Pahwaro hwekutsvagisa kwesainzi pane akasiyana arc ekudzvinyirira mhete, kambani yedu yakagadzira HYXHX yakangwara arc kudzvinyirira michina.
Chiyero chekushandiswa kweakangwara arc kudzvinyirira mudziyo:
1. Ichi chishandiso chakakodzera 3 ~ 35KV yepakati voltage simba system;
2. Iyi midziyo inokodzera hurongwa hwekugovera simba apo nzvimbo isina kusimba haina kudzika pasi, nzvimbo isina kusimba inodzika pasi kuburikidza nearc kudzvinyirira coil, kana kuti nzvimbo isina zvematongerwo enyika inotarirwa kuburikidza nekupikisa kwepamusoro.
3. Iyi midziyo yakakodzera magetsi emagetsi ane tambo semuviri mukuru, hybrid power grids ane tambo uye tambo dzepamusoro semuviri mukuru, uye magetsi ane tambo dzepamusoro semuviri mukuru.
Unyanzvi hunhu hwehungwaru arc kudzvinyirira mudziyo:
Iye controller anotora mana eCPU zvimiro, imwe yekudyidzana kwevanhu uye chaiyo-nguva kutaurirana, imwe yesampling uye kuverenga, imwe yekubuda kwechiratidzo manejimendi kuti ive nechokwadi chekurongeka kwemasaini ekubuda, uye imwe yekutadza kurekodha.
Software Features:
1. Real-time multitasking operating system (RTOS):
Iyo software yekuvandudza inotora chaiyo-nguva inoshanda sisitimu uye ine simba nyanzvi raibhurari basa, uye yakanangana neiyo programming maitiro emazuva ese mabasa, uye inoita yekugovera zviwanikwa, kuronga basa, kusarudzika kubata uye mamwe mabasa zvinoenderana neiyo-yekutanga sevhisi modhi.Inoshanda zvakavimbika uye inogona kushandisa zvizere kuita kwedhijitari masaini processors uye microprocessors.Mutauro wekombuta unotsanangura unokurumidza kushandisa, une kuverenga kuri nani, uye uri nyore kuwedzera nekudyara.
2. Yakajairika MODBUS kutaurirana protocol:
Yakajairwa MODBUS kutaurirana protocol inogamuchirwa kuti ifambise kupinda kune akasiyana akajairwa akabatanidzwa otomatiki masisitimu.Iyo yakaparadzana yekutaurirana yekugadzirisa microprocessor inosarudzwa kuti iwedzere kuvandudza kugona kwekutaurirana uye kumhanya kwekutaura.
Mushure mekunge mudziyo waitwa, unogona kudzorerwa kunzvimbo iri kure.
3. Kushandisa DSP yepamusoro-soro:
Iyo sampling uye chikamu chekuverenga inosarudza iyo TMS320F2812DSP chip yeTI Kambani.High frequency kusvika 150MHz.
Zvinoenderana nehurongwa hwekombuta, iyo analogi chiratidzo chakaunganidzwa munguva chaiyo inogona kukurumidza kushandurwa Fourier munguva pfupi, uye pulse ikozvino inogona kuwanikwa uye kuyerwa munguva chaiyo.
4.14-bit yakawanda-channel panguva imwe chete sampling yedhijitari-kune-analog converter:
Nekuti sisitimu inodiwa kuve nesampling yechokwadi, AD inosarudza 14 bits.Kune 8 chiteshi pamwe chete.Yese mana chiteshi makoramu anoshandisa kushambadzira panguva imwe chete kuvandudza iko kurongeka kwekushandisa.Iyo yekunze CLK yeAD ndeye 16M, nekudaro ichivimbisa iyo 64-point sampling uye kuverenga zvinodiwa zvega rega kutenderera kwesampling yedu.
5. Kushandisa zvinorongeka zvine musoro:
Mabasa ezvigadzirwa zvechinyakare akaiswa pane imwe chip, iyo inoderedza substrate nzvimbo uye nhamba yemapadhi, inopfupisa kureba kwebhazi, inovandudza kusapindirana kwekuita uye kuvimbika kwedunhu, uye inovandudza kuchinjika panguva imwe chete.
Iyo yese system software inoshandisa maviri ALTERA EPM7128 sechikamu cheiyo digital logic.Iyi chip inogona kudzokororwa, iyo ine 2500 magedhi uye 128 macro masero, ayo anogona kusangana nezvinodiwa zvakanyanya kuoma logic.Iko kushandiswa kweiyo yakasanganiswa ic kunoderedza zvakanyanya huwandu hweyakazvimiririra logic zvishandiso zvinodiwa nedhijitari system, uye inovandudza kuvimbika uye kuchengetedzeka kweiyo system.
6. Kutadza kurekodha basa:
Iyo yekukanganisa rekodhi inogona kurekodha 8 kukanganisa waveforms mune cyclical system, kusanganisira yekuruboshwe nekurudyi-nhatu-chikamu voltage, zero-kutevedzana voltage, zero-kutevedzana ikozvino, matatu-chikamu AC contactor uye wedunhu breaker pamberi uye mushure kukanganisa kwaitika.
7.Mushonga wemunhu-muchina unotora chiratidziro chekristaro chemvura yakakura uye yakazara Chinese menyu kuratidza huwandu hwazvino hwemamiriro ezvinhu nenzira yegraphical, chaiyo-nguva uye intuitive matatu-phase voltage value, zero-phase voltage value, uye zero-phase current. value.
Zvinhu zvikuru zvechigadzirwa
1. Kukurumidza kuita kwechigadzirwa chacho kunokurumidza, uye kunogona kuita nokukurumidza mukati me30 ~ 40ms, iyo inopfupisa zvikuru nguva ye-single-phase grounding arc;
2. Iyo arc inogona kudzimwa pakarepo mushure mekushanda kwechigadzirwa, uye arc grounding overvoltage inogona kunyatsogadziriswa mukati memutsara wemagetsi;
3. Mushure mokunge chigadziro chichishanda, bvumira kuti capacitive current yegadziriro ipfuurire mberi kwemaawa anenge 2, uye mushandisi anogona kutarisana nemutsara wakashata mushure mekupedza kushandiswa kwekushandura kwekutamisa mutoro;
4. Basa rekudzivirira rechigadziro harina kukanganiswa nechiyero uye maitiro ekushanda kwemagetsi emagetsi;
5. Chigadzirwa chacho chine high functional cost performance, uye voltage transformer mariri inogona kupa zviratidzo zvemagetsi zvekugadzirisa uye kudzivirira, kutsiva zvakajairwa PTA hofori;
6. Chigadzirwa chacho chakashongedzerwa nediki ikozvino yekugadzira mutsara wekugadzirisa mutsara, iyo inogona kuvandudza zvakanyanya kururamisa kwekusarudzwa kwemutsara kuburikidza nekushandisa maitiro ehukuru zero-sequence ikozvino kuchinja kwemutsara wekukanganisa pamberi uye mushure mokunge arc yadzimwa.
7. Chigadzirwa chacho chinotora musanganiswa we-anti-saturation voltage transformer uye yakakosha yemazuva ano-inomisa resonance eliminator, iyo inogona kunyanya kudzvinyirira ferromagnetic resonance uye kunyatsodzivirira kutarisa;
8. Chigadzirwa chacho chine basa re arc light grounding fault wave kurekodha, kupa data kune vashandisi kuti vaongorore njodzi.
Izvo zvakakosha zvechigadzirwa uye maitiro avo:
1. High-voltage vacuum nokukurumidza contactor JZ nechikamu chekuparadzanisa kutonga;
Iyi i AC inokurumidza vacuum yekubatanidza yakagadziridzwa nekambani yedu iyo inogona kudzorwa nekuparadzaniswa kwechikamu, uye inogona kuiswa mukushanda zvakasiyana mu8 ~ 12ms.Imwe mugumo wevacuum contactor yakabatana nebhazi, uye imwe mugumo wakananga pasi.Munguva yekushanda kwakajairika, JZ yakavhurika uye yakavharwa pasi pekutonga kweiyo microcomputer controller.Maseketi emagetsi anoshanda evacuum contactors ega ega ega akavharirwa.Kana chero chikamu chinovhara system yayo bhazi yekumisa mudziyo, zvimwe zvikamu zviviri hazvichashande.
Basa reJZ nderokudzivirira midziyo yehurongwa kubva mukufurira kwekuwedzera nekukasira kuendesa kubva kune isina kugadzikana arc grounding kune yakagadzika metallic yakananga pasi kana arcing grounding inoitika muhurongwa.
2. HYT nzvimbo huru kuputika-uchapupu kuchengetedza-isina overvoltage dziviriro;
HYT yakakura-inoputika-inopupurira kuchengetedza-isina overvoltage inodzivirira inoita kudzikamisa kuwanda kweiyo system.Iyo yakasiyana neyakajairwa zinc oxide arrester (MOA) chimiro uye ine zvinotevera zvakanakira:
(1) Huru yekuyerera uye yakakura mashandisirwo emhando;
(2) Nzira yekubatanidza nyeredzi ina inogona kuderedza zvakanyanya chikamu-ku-phase overvoltage uye inovandudza zvikuru kuvimbika kwekudzivirira;
(3) Iyo yakakwira-yakawanda zinc oxide isiri-mutsara resistor uye gomba rekuburitsa rinodzivirira mumwe nemumwe.Iyo gap yekuburitsa inoita kuti chiyero chekuchaja cheZnO isiri-mutsara kuramba zero, iyo ZnO isiri-mutsara inopikisa haidzikisire, iyo isiri-mutsara hunhu hweZnO isiri-mutsara inopikisa haidzokeri shure mushure mekunge gaka rekuburitsa ravhurwa, discharge gap haiite basa rekudzvinyirira arc, uye hupenyu hwechigadzirwa hunovandudzwa
(4) Voltage surge index ndeye 1, uye kubhadharisa uye kubuda kwemagetsi kwakafanana pasi pemhando dzakasiyana-siyana dzemagetsi, uye hazvizokanganiswe neakasiyana ekushanda overvoltage waveforms.Yakarurama overvoltage kuchengetedza kukosha uye yakanakisa kudzivirira kuita
(5) Iko kukosha kwepakarepo yekuchaja uye yekuburitsa iri padyo neiyo yasara voltage, uye hapana chekucheka chiitiko, icho chinobatsira kuchengetedza insulation layer yemhepo inomonereka.
(6) Chimiro chiri nyore uye chakajeka, vhoriyamu idiki, uye kuiswa kuri nyore;
Iyo hombe nzvimbo inoputika-inoratidza kuchengetedza-isina overvoltage mudziviriri ndiyo yekutanga yerudzi rwayo kudzikamisa overvoltages emarudzi ese.Pamberi pe AC contactor JZ isati yaitwa, iyo overvoltage inogumira mukati mekuchengetedza siyana.
3. HYXQ yekutanga ikozvino inodzikamisa harmonic eliminator:
HYXQ ndiyo yakagadzirwa chigadzirwa chekambani yedu.Yakaiswa munhevedzano pakati peiyo yekutanga kusarerekera poindi yevoltage transformer uye pasi kudzvanya iyo ferromagnetic inoteedzera resonance yevoltage transformer uye kugadzirisa kuchengetedza chinhu chekushanda kwegidhi remagetsi.
Mukushanda kwakajairwa, kushorwa kunenge 40kΩ, uye kushorwa kweiyo yekutanga mhepo yePT idanho remegohm, saka hazvizokanganisa maitiro akasiyana ePT, uye hazvizoshandure zvakanyanya maparameter akasiyana ehurongwa.Kana iyo PT ichirira, iyo musimboti wesimbi wakazara, iyo yekuwedzeredza ikozvino yepakutanga mhepo inovhuvhuta inowedzera, uye iyo MQYXQ kuramba inowedzera nekukurumidza, iyo inogona kutamba yakanaka damping mhedzisiro.
HYXQ ine chimiro chakareruka uye chakajeka, huremu huremu, kuiswa kuri nyore uye kushanda kwakavimbika.Inogona kuchengetedza inoenderera uye nekukurumidza pulse ikozvino kujekesa;iyo yakakura kusimba kweiyo yakatevedzana resonance overvoltage, iyo ipfupi iyo pulse ikozvino yekuchenesa nguva;chigadzirwa ichi chinogona kudzikamisa kuwedzera kamwe kamwe kweiyo excitation ikozvino kwekutanga mhepo yemhepo inoshandura voltage, uye kudzivirira ikozvino kunokonzerwa nekutanga mhepo yemagetsi transformer.Nekuda kweizvozvo, simba rekinetic remutsigiri wedunhu harina kukwana kudzima arc mushure mekunge muparadzi wedunhu asanganiswa, zvichikonzera kukanganisa kwekapfupi kwekuchengetedza tsaona yebhazi duct.
4. Microcomputer controller ZK:
ZK ndiyo yakakosha yekudzora chikamu chemidziyo iyi.Iyo inosarudza nzvimbo yekukanganisa uye mhando yekukanganisa (inogona kushandura dhizaini, simbi inogadzika, uye arc grounding) zvichibva paUa, Ub, Uc, uye U masiginecha anopihwa nevoltage transformer, uye inodzora iyo yakakwira-voltage vacuum yekubata nenzira yakatarwa. mudziyo JZ.
Kudzvinyirirwa kwenherera uye kusarudzwa kwemutsara kunogona kubatanidzwa kuzadzisa chinangwa chekuenzanisa pakati pekusarudza mutsara uye kusarudzwa kwemutsara.
5. High voltage current inomisa fuse FU:
FU inochengetedza inodzivirira kune ese maturusi, ayo anogona kudzivirira dambudziko rekutadza-mavara-pfupi-kupfupi kukonzeresa kukonzeresa wiring kana zvikanganiso zvekushanda.Iine maitiro anotevera:
(1) Huru yekupwanya simba, kusvika ku63KA;
(2) Kukurumidza kuputika kwedunhu, nguva yekupwanya yedunhu ndeye 1 ~ 2ms;
(3) Kudzikamisa kwazvino kuri nyore kushandisa, uye yakajairika kukanganisa ikozvino inogona kuganhurirwa kune isingasviki 1/5 yehombe pfupi-yedunhu kukanganisa impulse current;
6. Special voltage transformer PT ine ebetsero yechipiri mhepo:
Iyo mudziyo inoshandisa yakakosha anti-saturation voltage transformer.Kana ichienzaniswa neyakajairika magetsi emagetsi, haingogone kupa zvakagadzika masaini emagetsi ekuyera system uye kutonga, asi zvakare inozvidzivirira yakavimbika kubva mutsaona dzakadai sekukuvara kwevoltage transformer uye kupisa kunokonzerwa nesystem nonlinear resonance.
Nguva yekutumira: Kubvumbi-12-2023