I-GDCO-301 Uhlelo Lokuqapha Ku-inthanethi Lokuzungeza Kwamanje Ku-Cable Sheath
Amakhebuli angaphezu kuka-35kV ikakhulukazi amakhebuli ane-single-core aneshethi yensimbi.Njengoba umgodla wensimbi wekhebula eliwumgogodla owodwa uncike ngomugqa wensimu kazibuthe okhiqizwe i-AC yamanje ocingweni oluwumgogodla, amaphethelo amabili ekhebula eliwumgogodla owodwa ane-voltage ephezulu eyenziwe.Ngakho-ke, izinyathelo ezifanele zokubeka phansi kufanele zithathwe ukuze kugcinwe i-voltage eyengelwe ngaphakathi kwebanga lamandla kagesi aphephile (ngokuvamile ingabi ngaphezu kuka-50V, kodwa ingabi ngaphezu kuka-100V ngezinyathelo zokuphepha).Ngokuvamile, umgodla wensimbi womugqa omfushane wentambo yomgogodla owodwa usekelwe ngokuqondile ekugcineni futhi usekelwe ngegebe noma isivikelo sokuvikela ngakolunye uhlangothi.Umgodla wensimbi womugqa omude owodwa - ikhebula eliwumgogodla usekelwe ngokuphambana kwezigaba ezintathu.Kungakhathaliseki ukuthi yiluphi uhlobo lwendlela yokubeka phansi eyamukelwayo, ukufakwa kahle kwe-sheath kuyadingeka.Lapho ukufakwa kwekhebula konakalisiwe, i-sheath yensimbi izobekwa ezindaweni eziningi, ezokhiqiza amandla ajikelezayo, ikhulise ukulahlekelwa kwe-sheath, ithinte umthamo wamanje wokuthwala ikhebula, futhi ibangele ngisho nokushiswa kwentambo. ngenxa yokushisa ngokweqile.Ngasikhathi sinye, isiqinisekiso sokuthi i-voltage ephezulu yensimbi emgodleni wokumisa isizinda sokuxhuma ngqo nayo ibaluleke kakhulu, uma indawo ephansi ingakwazi ukumiswa ngempumelelo ngezizathu ezahlukahlukene, amandla we-cable metal sheath amandla azokhuphuka kakhulu kuye kuma-kilovolts ambalwa ngisho namashumi ezinkulungwane zama-volts. , kulula ukuholela ekuqhekekeni kwe-sheath yangaphandle kanye nokukhishwa okuqhubekayo, okubangela ukunyuka kwezinga lokushisa kwe-cable sheath yangaphandle noma ngisho nokuvutha.
I-GDCO-301 isebenzisa indlela yamanje ejikelezayo.Lapho umgodla wensimbi wekhebula elilodwa eliwumgogodla ungaphansi kwezimo ezijwayelekile (okungukuthi, indawo eyodwa enephuzu elilodwa), i-circular current emgodleni, ikakhulukazi i-capacitive current, incane kakhulu.Uma i-multi-point earthing yenzeka emgodleni wensimbi futhi yakha iluphu, amandla ajikelezayo azokhula kakhulu futhi angafinyelela ngaphezu kuka-90% wamanje oyinhloko.Ukuqapha ngesikhathi sangempela sokujikeleza kwe-metal sheath kanye nezinguquko zakho kungabona ukuqapha okuku-inthanethi kwephutha lomhlaba elinamaphuzu amaningi we-single-core cable metal sheath, ukuze kutholakale iphutha lomhlaba ngesikhathi nangephutha, kugwemeke ngokuyisisekelo ukwenzeka kwengozi yekhebula futhi qinisekisa ukusebenza okuphephile nokuthembekile.
Isebenzisa i-GSM noma i-RS485 njengemodi yokuxhumana.Ilungele ukuqapha amaphutha aphansi okunamaphuzu amaningi ezintambo eziwumgogodla owodwa ngaphezu kuka-35kV.
I-GDCO-301 Online Monitoring System Yokujikeleza Kwamanje Ku-Cable Sheath ihlanganisa: iyunithi eyinhloko yedivayisi yokuqapha edidiyelwe kanye ne-transformer yamanje, izinga lokushisa kanye nenzwa yokulwa nobugebengu.I-transformer yamanje yohlobo oluvulekile ifakwe emgqeni ophansi we-cable sheath futhi iguqulwa ibe isignali yesibili ngaphambi kokuba idivayisi yokuqapha yethulwe.Inzwa yokushisa isetshenziselwa ukuqapha izinga lokushisa lekhebula, futhi inzwa yokulwa nokweba isetshenziselwa ukuqapha umugqa wokumisa ukujikeleza.Ukwakheka kohlelo lokuqapha oluphelele lwe-inthanethi lwe-cable sheath lumi kanje:
●Ukuqapha ngesikhathi sangempela amandla aphansi eshehethi yekhebula yezigaba ezintathu, isamba samandla aphansi kanye namandla okusebenza kwanoma iyiphi ikhebula lesigaba;
●Ukuqapha ngesikhathi sangempela izinga lokushisa lekhebula lezigaba ezintathu;
●Ukuqapha kwe-Real-time anti - ukwebiwa kwe-cable sheath grounding;
●Isikhawu sesikhathi singasethwa;
●Amapharamitha we-alamu kanye nokuthi imingcele yokuqapha ehambisanayo ivunyelwe yini ukukhiqiza i-alamu ingasethwa;
●Setha inani eliphezulu, inani elincane kanye nenani elimaphakathi esikhathini esimisiwe;
●Ukuqapha kwesikhathi sangempela kwesilinganiso senani eliphezulu nelincane lesigaba esisodwa samanje sephansi phakathi nesikhathi sezibalo, nokucutshungulwa kwe-alamu;
●Ukuqapha kwesikhathi sangempela kwesilinganiso samandla aphansi azolayishwa phakathi nesikhathi sezibalo, nokucutshungulwa kwe-alamu;
●Ukuqapha kwesikhathi sangempela kwezinga lokushintsha kwesigaba esisodwa esingaphansi kwenkathi yezibalo, nokucutshungulwa kwe-alamu;
●Idatha yokulinganisa ingathunyelwa noma kunini.
●Ingacacisa ipharamitha yokuqapha eyodwa noma ngaphezulu ku-alamu, ithumele imininingwane ye-alamu kumakhalekhukhwini oqokiwe;
●Isilinganiso sesikhathi sangempela se-voltage yokufaka;
●Yonke idatha yokuqapha inamalebula esikhathi ukuze kuqinisekiswe ukuhluka kwedatha;
●Zonke izinzwa zokuqapha zingahlelwa ngokwezidingo zomsebenzisi;
●I-interface yokudlulisa idatha eminingi: I-RS485 interface, i-GPRS, i-GSM SMS, ingasebenzisa imodi yokudlulisa idatha eyodwa noma ngaphezulu ngesikhathi esisodwa;
●Sekela ukugcinwa okukude nokuthuthukisa;
●Idizayini yokusetshenziswa kwamandla aphansi, isekela okokufaka kwamandla okuhlukahlukene: amandla e-CT induction, amandla e-AC-DC namandla ebhethri;
●Ngezingxenye zebanga lezimboni, ezinokwethenjelwa okuhle nokuzinza;
●Isakhiwo esivalwe ngokugcwele se-modular, kulula ukusifaka, izinyathelo zokukhiya zithathwa kuzo zonke izingxenye, ukusebenza okuhle kokulwa nokudlidliza, futhi kulula ukukushintsha nokuhlukanisa;
●Sekela izinga lokuvikela le-IP68.
| Into | Amapharamitha | |
|
Okwamanje
| Ukusebenza kwamanje | 1 isiteshi, 0.5～I-1000A (Ingenziwa ngezifiso) |
| I-Sheath ground current | 4 isiteshi, 0.5～I-200A (Ingenziwa ngezifiso) | |
| Ukunemba kokulinganisa | ±(1%+0.2A) | |
| Isikhathi sokulinganisa | 5～200s | |
|
Izinga lokushisa | Ibanga | -20 ℃～+180℃ |
| Ukunemba | ±1℃ | |
| Isikhathi sokulinganisa | 10～200s | |
Imbobo ye-RS485
●Izinga le-Baud: 2400bps, 9600bps kanye ne-19200bps lingasethwa.
●Ubude bedatha: 8 bit:
●I-bit yokuqala: i-1 bit;
●I-Stop bit: i-1 bit;
●Ukulinganisa: akukho ukulinganisa;
Imbobo ye-GSM/GPRS
●Imvamisa yokusebenza: I-Quad-band, 850 MHz/900 MHz/1800 MHz/1900 MHz;
●Imiyalezo emifushane yesiShayina/yesiNgisi ye-GSM;
●Ikilasi le-GPRS 10, Max.isivinini sokulanda 85.6 kbit/s, Max.isivinini sokulayisha esingu-42.8 kbit/s, sisekela i-TCP/IP, i-FTP nephrothokholi ye-HTTP.
Ukunikezwa kwamandla kagesi
Ukunikezwa kwamandla e-AC
●Amandla kagesi: 85 ~ 264VAC;
●Imvamisa: 47 ~ 63Hz;
●Amandla: ≤8W
Ibhethri
●Amandla kagesi: 6VDC
●Umthamo: kunqunywa isikhathi sokusebenza esiqhubekayo sebhethri
●Ukuhambisana kwebhethri
| I-Electrostatic discharge immunity | Ikilasi 4:I-GB/T 17626.2 |
| I-Radio-frequency electro-magnetic field radiation immunity | Ikilasi 3:I-GB/T 17626.3 |
| Ukungavikeleki kwesikhashana kagesi okusheshayo / kokuqhuma | Ikilasi 4:I-GB/T 17626.4 |
| Amasosha omzimba | Ikilasi 4:I-GB/T 17626.5 |
| I-Radio-frequency field inductive conduction immunity | Ikilasi 3:I-GB/T 17626.6 |
| Imvamisa yamandla kazibuthe wokungavikeleki | Ikilasi 5:I-GB/T 17626.8 |
| I-Pulse magnetic field immunity | Ikilasi 5:I-GB/T 17626.9 |
| I-Damping oscillation ye-magnetic field immunity | Ikilasi 5:I-GB/T 17626.10 |
Izinga lesithenjwa:
Q/GDW 11223-2014: Ukucaciswa Kwezobuchwepheshe kokutholwa kwesimo kolayini bekhebula lamandla kagesi aphezulu
4.1 Ukutholwa kwesimo sekhebula kungahlukaniswa ngezigaba ezimbili: ukutholwa ku-inthanethi nokutholwa ungaxhunyiwe ku-inthanethi.Okokuqala kuhlanganisa ukutholwa kwe-infrared, ukutholwa kwamanje okuphansi komgodla wekhebula, ukutholwa kokukhishwa okuyingxenye, kuyilapho ukutholwa ungaxhunyiwe ku-inthanethi kuqukethe ukutholwa kokukhishwa okuyingxenye ngaphansi kokuhlolwa kwe-resonant yochungechunge oluguquguqukayo, ukutholwa kokukhishwa kwekhebula le-oscillation.
4.2 Izindlela zokuthola isimo sekhebula zihlanganisa ukuhlola okuvamile ngesilinganiso esikhulu, ukuhlola kabusha amasignali asolisayo, ukuhlolwa okugxile emishinini enephutha.Ngale ndlela, ukusebenza okujwayelekile kwekhebula kungaqinisekiswa.
4.3 Abasebenzi bokuhlola kufanele bahambele ukuqeqeshwa kobuchwepheshe bokutholwa kwekhebula futhi babambe izitifiketi ezithile.
4.4 Imfuneko eyisisekelo yetheminali yesithombe se-infrared kanye nomtshina wamanje ophansi bhekisela kuSithasiselo A. Imfuneko eyisisekelo yokutholwa kokukhishwa okuyingxenye yamandla kagesi aphezulu, ukutholwa kokukhishwa okuyingxenye yamandla kagesi aphezulu kakhulu kanye nomtshina wokukhipha ingxenye we-ultrasonic bhekisela ku-Q/GDW11224-2014.
4.5 Uhlu lwezicelo lubhekise kuThebula 1.
| Indlela | Ibanga le-voltage yekhebula | Iphoyinti lokutholwa elingukhiye | Isici | Ku-inthanethi/okungaxhunyiwe ku-inthanethi | Ukuphawula |
| Isithombe se-infrared esishisayo | 35kV nangaphezulu | Itheminali, isixhumi | Ukuxhumeka okungalungile, ukumanzisa, iphutha lokufakelwa | Ku-inthanethi | Kuphoqelekile |
| I-Metal sheath emhlabathini wamanje | 110kV nangaphezulu | Isistimu yokugawula | Iphutha le-insulation | Ku-inthanethi | Kuphoqelekile |
| Ukukhishwa kwengxenye yemvamisa ephezulu | 110kV nangaphezulu | Itheminali, isixhumi | Iphutha le-insulation | Ku-inthanethi | Kuphoqelekile |
| Ukukhipha ingxenye yemvamisa ephezulu kakhulu | 110kV nangaphezulu | Itheminali, isixhumi | Iphutha le-insulation | Ku-inthanethi | Ongakukhetha |
| Igagasi le-ultrasonic | 110kV nangaphezulu | Itheminali, isixhumi | Iphutha le-insulation | Ku-inthanethi | Ongakukhetha |
| Ukukhishwa okuyingxenye ngaphansi kokuhlolwa kwe-resonant yochungechunge oluguquguqukayo | 110kV nangaphezulu | Itheminali, isixhumi | Iphutha le-insulation | Okungaxhunyiwe ku-inthanethi | Kuphoqelekile |
| Ukukhipha ingxenye yekhebula le-OWTS oscillation | 35kV | Itheminali, isixhumi | Iphutha le-insulation | Okungaxhunyiwe ku-inthanethi | Kuphoqelekile |
Ithebula 1
| Ibanga le-voltage | Isikhathi | Ukuphawula |
| 110(66)kV | 1. Phakathi nenyanga engu-1 ngemva kokuhlinzwa noma ukulungiswa okukhulu 2. Kanye kwezinye izinyanga ezi-3 3. Uma kudingeka | 1. Isikhathi sokubona kufanele sifinyezwe uma kunomthwalo osindayo kolayini bekhebula noma phakathi nenani eliphakeme lasehlobo. 2. Ukutholwa kufanele kwenziwe kaningi ngokusekelwe endaweni yokusebenza embi, okokusebenza okuphelelwe yisikhathi, kanye nedivayisi enesici. 3. Ukulungiswa okufanele kufanele kwenziwe ngokusekelwe ezimeni zemishini nendawo yokusebenza. 4. Uhlelo lokuqapha oluku-inthanethi lwe-ground current emgodleni wekhebula lungangena esikhundleni sokutholwa kwalo bukhoma. |
| 220kV | 1. Phakathi nenyanga engu-1 ngemva kokuhlinzwa noma ukulungiswa okukhulu 2. Kanye kwezinye izinyanga ezi-3 3. Uma kudingeka | |
| 500kV | 1. Phakathi nenyanga engu-1 ngemva kokuhlinzwa noma ukulungiswa okukhulu 2. Kanye kwezinye izinyanga ezi-3 3. Uma kudingeka |
Ithebula 4
5.2.3 Indlela yokuxilonga
Kuyadingeka ukuhlanganisa ukulayisha kwekhebula kanye nokuthambekela kwamanje okungavamile kweshehethi yekhebula nedatha yokulinganisa yeshethi yekhebula.
Indlela yokuxilonga ibhekise kuThebula 5.
| Isivivinyo | Umphumela | Iseluleko |
| Uma zonke izidingo ezingezansi zifinyelelwa: 1. Inani eliphelele le-ground current＜50A; 2. Isilinganiso phakathi kwamandla aphansi kanye nomthwalo＜20%; 3. Ubukhulu.inani/ Ubuncane.inani lamanje lesigaba esisodwa＜3 | Okuvamile | Sebenza njengokujwayelekile |
| Uma noma iyiphi imfuneko engezansi ifinyelelwa: 1. 50A≤inani eliphelele le-ground current ≤100A; 2. 20%≤isilinganiso phakathi kwamandla aphansi kanye nomthwalo ≤50%; 3. 3≤Ubukhulu.inani/Min.inani lesigaba esisodwa sendawo yamanje≤5; | Isexwayiso | Qinisa ukuqapha futhi unciphise isikhathi sokutholwa |
| Uma noma iyiphi imfuneko engezansi ifinyelelwa: 1. Inani eliphelele le-ground current＞100A; 2. Isilinganiso somhlaba wamanje nomthwalo＞50%; 3. Ubukhulu.inani/Mini.inani lamanje lesigaba esisodwa＞5 | Isici | Vala bese uhlola. |
Ithebula 5
