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Zida zing'onozing'ono zomwe siziyenera kunyalanyazidwa mu machitidwe a dzuwa a photovoltaic

Malo opangira magetsi opangira magetsi a 20MW ali ndi ndalama zokwana pafupifupi yuan 160 miliyoni.Pakati pawo, ndalama zogulira bokosi lophatikiza ndi zosakwana 1 miliyoni yuan, zomwe zimangotenga 0,6% yokha ya ndalama zonse.Chifukwa chake, pamaso pa anthu ambiri, bokosi lophatikizira ndi chipangizo chaching'ono chopanda ntchito.Komabe, malinga ndi ziwerengero zowerengera, bokosi lophatikizira ndilofunika kwambiri pakulephera kwamunda.

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Chithunzi 1: Ziwerengero zolephera pa malo a polojekiti ya photovoltaic

Chithunzi chomwe chili pansipa chikuwonetsa ngozi yowotcha ya bokosi lophatikiza.

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1. Mapangidwe oyambira a bokosi lophatikizira Mapangidwe amkati a bokosi lophatikizira wamba akuwonetsedwa mu chithunzi pansipa.

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1. bokosi

Nthawi zambiri, mbale zachitsulo zopopera pulasitiki, zitsulo zosapanga dzimbiri, mapulasitiki aumisiri ndi zinthu zina zimagwiritsidwa ntchito, ndipo mulingo wachitetezo uli pamwamba pa IP54.Ntchito yake ndi: yopanda madzi komanso yopanda fumbi, kukwaniritsa zofunikira za ntchito yakunja kwa nthawi yayitali ya bokosi lophatikiza.Dongosolo la IP54 lodzitchinjiriza limayika zida zamagetsi molingana ndi zomwe sizingavumbire fumbi komanso zotsimikizira chinyezi.Nambala yoyamba "5" imasonyeza mlingo wa chitetezo ku zinthu zakunja, ndipo nambala yachiwiri "4" imasonyeza kuchuluka kwa mpweya wa chipangizocho motsutsana ndi chinyezi ndi kulowerera kwa madzi.Chiwerengero chachikulu, ndiye kuti chitetezo chimakwera.

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2. DC circuit breaker

Chowotcha dera la DC ndi chida chowongolera zotulutsa za bokosi lonse lophatikizira, lomwe limagwiritsidwa ntchito kwambiri potsegula ndi kutseka kwa dera.Mphamvu yake yogwira ntchito ndi yokwera kwambiri ngati DC1000V.Popeza mphamvu yopangidwa ndi module ya dzuwa imakhala yolunjika, imakonda kukhala arc pamene dera likutsegulidwa, kotero kutentha kwake kuyenera kuperekedwa pa nthawi yoyang'anira kutentha kwakukulu m'nyengo yachilimwe.

3. Surge mtetezi gawo

Opaleshoni imatchedwanso surge, yomwe ndi kuwonjezereka kwadzidzidzi komwe kumaposa ntchito yachibadwa.Woteteza chitetezo ndi chipangizo chamagetsi chomwe chimapereka chitetezo chachitetezo cha bokosi lophatikiza.Pamene spike panopa kapena kwakanthawi overvoltage kapena mphezi overvoltage mwadzidzidzi kwaiye mu dera magetsi kapena kulankhulana dera chifukwa cha kusokoneza kunja, woteteza opaleshoni akhoza kuchita ndi shunt mu nthawi yaifupi kwambiri, potero kupewa kukwera kwa zida zina mu dera Kuwonongeka.

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4. Fusi ya DC

Kuchulukirachulukira kwapano komanso kwakanthawi kochepa komweko kumapangitsa kutentha kwa waya ndi chingwe kukhala kokwera kwambiri, zomwe zimapangitsa kuwonongeka kwa kutsekeka kwa waya ndi chingwe, kapena kusweka.Fuseyi imakonzedwa kumapeto kwa kondakitala kapena chingwe kuti mutetezeke mochulukira mawaya ndi zingwe, ndipo mawonekedwe a fuseyi ndi pafupifupi 1.25 nthawi za mzere wapano;pofuna chitetezo chafupipafupi, fuseyi iyenera kukhazikitsidwa kumapeto kwa waya kapena chingwe.Mphamvu ya fuseyi ndi nthawi ya 1.45 nthawi yaulendo wapano.

2. Zosiyanasiyana zomwe zingayambitse bokosi la combinator liwotchedwa

1 Bokosi lophatikizira palokha limayambitsidwa ndi zifukwa zake.

1) Maonekedwe a bar ya basi ndi fusesi ndizosamveka ndipo siziyenera kuphana.Kuonjezera apo, m'lifupi mwa bar ya basi ndi yaying'ono, yomwe siimapangitsa kuti kutentha kuwonongeke komanso kosamveka.Kugawa kwadongosolo kumapangitsa kuti dera lalifupi liwotchedwe.

2) M'lifupi mwa bar ya basi ndi yopapatiza, ndipo malo olumikizirana pakati pa terminal ndi mabasi ndi ochepa, zomwe zimayambitsa kutentha ndi kuyatsa.

3) Mabasi a aluminiyamu amagwiritsidwa ntchito pamabasi, ndipo kutentha kwa bokosi la opaleshoni ndikokwera kwambiri.Ndibwino kugwiritsa ntchito mabasi amkuwa a TMY kapena TMR;ubwino wa zokutira zotetezera za chipolopolo chakunja ndizovuta.

4) Bokosi lophatikizira lilibe chida choteteza chothandiza.Palibe gawo lolumikizirana komanso chitetezo chowunikira momwe nthambi iliyonse ikuyendera mubokosi lophatikiza.Pomwe kugwirizana kwenikweni kwa nthambi kumasulidwa ndikuyatsa, mphamvu ya dera ili idzasinthasintha, yomwe iyenera kupereka alamu ndikuyendetsa woyendetsa dera kuti ayende;bokosi lophatikizira ili liribe chowotcha dera.Ngakhale ngozi itapezeka, ndizovuta kuyidula pamanja.

5) Kusakwanira creepage mtunda wa mkulu-voltage magetsi chilolezo pa athandizira gulu ulamuliro kumayambitsa kuyaka;

6) Vuto lamtundu wa fusesi: Fuseyo ikadutsa mphamvu yapano, imaphulika, kapena fusesiyo ndi yayikulu kwambiri kuti isatetezeke.Kukwanira pakati pa kusungunuka ndi maziko (kukana kukhudzana kwambiri);

7) IP mlingo sikugwirizana ndi zofunika;

8) Ubwino wa kutchinjiriza ndi kupirira magetsi a block terminal ndi otsika.

9) Chombo chophwanyira dera sichinakhazikitsidwe, kapena wodutsa dera ali pafupi kwambiri ndi nyumbayo, ndipo mtunda wa arcing siwokwanira.

2 Chifukwa cha kumangidwa kopanda muyezo

1) Wiring pakati pa chingwe cha photovoltaic ndi bokosi lophatikizira silolimba.Chifukwa cha mphamvu yochulukirapo ya ogwira ntchito yomanga panthawi yomanga, chomangira chokhazikika chinagwedezeka ndipo waya wotsetsereka sunalowe m'malo, kapena phula silinayimitsidwe pamene mphamvuyo inali yaying'ono kwambiri, kukhudzana koyipa kunachititsa kuti arc yapano ikhalepo panthawi yomanga. Opaleshoni, ndi kutentha kwakukulu kunasungunula chosungira fuse ndikupangitsa kuti pakhale kufupika ndikuwotcha.Chotsani bokosi lophatikizira.

2) Kuzungulira kwakufupi komwe kumachitika chifukwa cha waya wolakwika.Pamene chingwe cha photovoltaic chinagwirizanitsidwa ndi bokosi lophatikizira, ogwira ntchito yomangayo sanasiyanitse bwino mizati yabwino ndi yoipa ya chingwe cha batri, ndipo analumikiza mtengo wabwino wa zingwe za batri ndi mizati yolakwika ya zingwe zina za batri, zomwe zimapangitsa dera lalifupi.Ngakhale ena ogwira ntchito yomanga analumikiza molakwika ma module a photovoltaic, zomwe zimapangitsa kuti zingwe zina zikhale ndi voteji ya 1500V kapena kuposa 2500V, yolumikizidwa ndi bokosi lophatikiza, ndipo chodabwitsa cha kutenthedwa kwa chigawocho chinachitika.

3) Zimayambitsidwa ndi ma terminal omwe akubwera ndi mawaya.Mzere wolowetsa mabasi a photovoltaic umalowa mu bokosi lophatikizira kuchokera pansi pa bokosi lophatikizira.Imalumikizidwa mwachindunji ndi block block popanda kukonza miyeso.Mutu wa wiring umakonzedwa ndi screw yaying'ono.Malo olumikizirana ndi terminal ndi ochepa ndipo amanyamula mphamvu yokoka kwa waya.Pamene mutu wa waya umakhudzidwa ndi kutentha Pamene kusintha ndi kutentha kwamakono ndikumasula, kumatulutsa zonyezimira ndipo pang'onopang'ono arc ndi kuwotcha, zomwe pang'onopang'ono zidzachititsa zipangizo zina komanso ngakhale bokosi lonse kuti litenthe ndi kutentha kwathunthu.

4) Tekinoloje yosakwanira yopanga chingwe chamutu wa bokosi lophatikizira, kuvula kwa zida zachitsulo, komanso pafupi kwambiri ndi mphuno ya waya, zomwe zimapangitsa kuti pakhale kukhazikika kwafupipafupi;chigawo chingwe kugwirizana pulagi kutentha chifukwa kukhudzana osauka, kuchititsa chingwe kugwira moto;Chomangira chamkuwa cha chosinthira bokosi cholumikizira chinali Kutentha kotayirira;

5) Khomo loteteza malo silinakhazikitsidwe.

3 Zomwe zimayambitsa panthawi ya ntchito ndi kukonza

1) Chifukwa cha kugwiritsidwa ntchito kwa nthawi yaitali kwa zipangizo, gawo la mphamvu lili ndi vuto lamkati, lomwe limapangitsa kuti arc iwonongeke ndipo bokosi lophatikizana likuwotchedwa.2) Malo osungira madzi omwe ali m'munsi mwa bokosi lophatikizira samamangiriza chingwe cha photovoltaic kapena mawaya a chophatikizira chotulutsa mwamphamvu.Popeza ma modules a photovoltaic amangopanga magetsi masana, malo okhudzana nawo adzawotcha ndikukula panthawi yopangira mphamvu.Usiku, kutentha sikudzachepa ndipo malo okhudzana nawo adzachepa.Ngati chotengera chosalowerera madzi sichimangirira chingwe mwamphamvu, mphamvu yotsika imatha kuyambitsa mzerewo pakapita nthawi.Chingwecho ndi chosasunthika, chomwe chimachititsa kuti arc awotche pothera, kapena ngakhale kuzungulira kwachidule.

3) Zinyama zazing'ono monga makoswe ndi njoka zimalowa mu bokosi lophatikizira, zomwe zimapangitsa kuti busbar ikhale yochepa.

4) Zomangira zomangira za bolodi la fuse ndizotayirira, zomwe zimapangitsa kuti bolodi la fuse ligwire moto;

5) Chigawo chimalephera ndipo kubwereranso kumachitika.

3. Kukonzanso bokosi lophatikizira

1 Zowonjezera Zowonjezera Kuti mumvetse momwe ntchito yogwiritsira ntchito zida za photovoltaic module, kuzindikira ndi kuthetsa zolakwika za zipangizo panthawi, kuteteza ngozi, ndikuonetsetsa kuti kukwaniritsidwa kwa dongosolo la kupanga magetsi, ntchito yoyendera zida iyenera kuchitidwa mosamala.

1) Bokosi lophatikizira liyenera kuyang'aniridwa kamodzi pamwezi kuti mudziwe nthawi yake, kuchotsa zolakwika munthawi yake, ndikulemba mwatsatanetsatane mu chipika cha opareshoni.

2) Yang'anani kukhulupirika kwathunthu kwa bokosi lophatikiza popanda kuwonongeka, kupindika, kapena kugwa.

3) Onetsetsani kuti bokosi lonse lophatikiza ndi loyera komanso lopanda zinyalala, ndipo chisindikizo chili bwino.

4) Onani ngati zomangirazo ndizotayirira kapena zadzimbiri.

5) Onani ngati ma wiring terminals apsa komanso ngati zomangira zamasuka.

6) Onani ngati inshuwaransi yatha, ndipo onani ngati bokosi la fusesi latenthedwa.

7) Onani ngati anti-reverse diode yatenthedwa.

8) Onetsetsani kuti magetsi ozungulira ndi apano ndi abwinobwino.

9) Onani ngati woteteza opaleshoniyo ndi wabwinobwino.

10) Onani ngati mzerewo ndi wabwinobwino pakugwa kwanyengo.

11) Onetsetsani kuti mawaya olumikizidwa ku bokosi lophatikizira amakulungidwa mwamphamvu komanso ngati zotsekemerazo zikukalamba.

12) Onani ngati kulumikizana ndi maziko a bokosi lophatikizira zasokonezedwa.

13) Onani ngati zomangira za DC circuit breaker terminal ndizotayirira, ndipo yang'anani kutentha kwa chowotcha cha DC panyengo yotentha m'chilimwe.

14) Onani ngati chizindikiritso cha bokosi lophatikizira chayikidwa mwamphamvu.2 Chenjezo pokonza bokosi lophatikiza

1) Pokonza nthambi ya bokosi lophatikizira, muyenera choyamba kulumikiza wowononga dera, ndiyeno mutsegule bokosi la fusesi la nthambi kuti likonzedwe, kenaka mutseke chowotcha, ndiyeno mupite kukakonza mzere wa basi .Kumbukirani kuti musamasule pulagi ya M4 popanda kulumikiza chowotcha cha DC, kapena kutsegula bokosi la fuse mwachindunji popanda kulumikiza chophwanya dera la DC, kuti mupewe ngozi zachitetezo.

2) Mukamayang'ana ndikukonza bokosi lophatikizira, khalani ndi chizolowezi chomangitsa zomangira zonse kamodzi, ndipo samalani zachitetezo mukamangitsa zomangira kuti musagwire ma terminals abwino ndi oyipa nthawi imodzi ndi manja anu, kapena kukhudza zabwino ndi zoyipa. PE nthawi yomweyo Waya kapena zoipa ndi PE waya.


Nthawi yotumiza: May-24-2021

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