Midziyo yekudzivirira yekushandisa kwemaindasitiri

Maindasitiri maficha anosanganisira akasiyana mhando yemidziyo inoda kuchengetedzwa kubva pamhedzisiro yemasaji. Izvo zvinodhura kumuridzi wekambani: mutengo unogona kunge wakakura uye kutadza, kana kutomisikidza, kweaya madhizaini, kungaite kurasikirwa kukuru kwemari, pamwe nekuisa iko kuvapo kwekambani iri panjodzi. Izvo zvakakosha zvinhu, kubva pakuona kwemasangano evashandi, ndevashandi: vanoshandisa michina yemagetsi uye, kana zvikaitika kuvhiya, hupenyu hwavo hunogona kunge huri munjodzi. Izvo zvataurwa pamusoro, pamwe nezvimwe zvikonzero, zvinomiririra zvikonzero zvinoita kuti munhu atsvage kudzivirirwa kubva kuma surges Iri basa rinoshandisa kuchengetedzwa kwemukati nekunze kubva kumheni, senge kumatunhu emhepo, pasi, inodzivirira busbar, surge suppressors, ese akabatanidzwa anonzi madhiraivhu ekudzivirira, SPD. Kune makambani akati wandei anogadzira huwandu hwezvigadzirwa, asi haazi ese akakodzera kunyorera maindasitiri.

Moyo weizvozvo zvese, sezvazvinowanzoitika, unorara mudhairekitori kana zvinodiwa pamutemo. Mune ino chaiyo mamiriro, iyo yakajairwa EN 62305 Mheni Kudzivirirwa, Zvikamu I kusvika 4. Chinyorwa ichi chinotsanangurawo ega marudzi erudzi, kurasikirwa, mheni kudzivirira masisitimu pamwe nezinga rekudzivirira kwemheni. Pane zvikamu zvina zvemheni inodzivirirwa (I kusvika IV) iyo inotsanangura mamiriro emheni; iwo mazinga ekudzivirira ibasa redanho renjodzi. Mumazhinji mafekitori mafomu, chivakwa chinosarudzwa seChikamu I kana II. Izvi zvinoenderana nehuremu hwepamusoro hwemheni yazvino I_imp (iko iko kusundira kune paramita 10/350 µs) kuve kwakakwirira kunge 200 kA. Kufungidzira kwakakodzera kunoratidza kuti 50% yeiyo yese I_imp yazvino inosungwa nenzvimbo dzemuchadenga uye ndokuendeswa mune yekumisikidza system. Iyo yasara makumi mashanu muzana inogoverwa zvakaenzana pakati pezvishongedzo (kureva pakati pevokunze vanobata vanopinda muchivako), kazhinji kune iyo IT uye tambo dzekutaurirana, simbi pombi uye LV magetsi emagetsi tambo.

Mumamiriro ezvinhu akashata zvakanyanya, SPD inoda kusunga kusvika zana kA. Kana ikagoverwa kuita tambo dzega, zvimiro zvazvino zvinosvika makumi maviri neshanu patambo imwe (uchishandisa TN-C) system. Ndosaka tichikurudzira kuti vatenzi vagoveri veLV unit substation (muzvivakwa zvinokodzera kunge LPL I dziviriro nhanho) vakwanise FLP50GR yakasimbiswa spark gap nekuzadza gasi. Kuve SPD Rudzi rwekutanga, iyo michina inovimbisa kuenzana kweanogona uye kuraswa kwemheni yazvino pamwe nekushanduka kwemhepo kunoitwa mumagetsi emagetsi anopinda muchivako.

Iyo inokwanisa kusunga ini_imp mafungu akakura se50 kA. Chikamu chinomisikidza chimwe chivakwa chinofanirwa kuve chakagadzirwa ne FLP25GR, mubatanidzwa weSDD Type 1 uye 2, iyo inoratidzira maviri varistors ekuchengetedza kwepamusoro uye inopa 25 kA yekusungwa kwekushushikana kwazvino. Zvimisheni zvechipiri uye zvekudzivirira makabati anofanirwa kuve akagadzirwa neSPD Type 2. Muenzaniso weiyo kirasi mune yedu chigadzirwa renji ndiyo SLP40, iyo inopihwa seyakazara, yakavharika unit kana nema replaceable module.

Kana mudziyo unodzivirirwa uri mukati memamita mashanu kubva kuchikamu chechipiri kana kabati yekudzora, sisitimu yacho inofanirwa kuve yakashongedzerwa neiyo SPD Type 5 unit, semuenzaniso, iyo TLP3. Iyo yepamusoro-frequency firita ine attenuation min. 10 dB mune frequency band 30 - 0.15 MHz iyo zvakare inoratidzira michina yekudzivirira - varistors inogadzirwa yema ratidziro emvura kubva 30 kusvika 16 A. Muchiitiko ichocho, chisimba chekuparadzanisa suppressor LC400 inoda kuiswa pakati peSPD Rudzi rwechipiri ne63 kuti ipe kurongeka kwakaringana. yevasungwa. Tambo dzakadzivirirwa dzinofanirwa kupihwa pakati pechinosiirwa uye nemidziyo yakachengetedzwa kuti ishande kwayo.

LSP zvakare inopa dziviriro kumamiriro ezvinhu apo denga reimba yacho rinotakura mapikicha e photovoltaic. Kurudziro yedu ndeye SLP40-PV akateedzana ayo anokwira pamberi pe inverter nemukati mayo akaiswa ma disconnectors ayo anoiswa muchiitiko chekutadza (kupisa zvakanyanya) kwevaristors uye nekumira kwechimakanika, icho chinoiswa pakati pemagetsi akabviswa kugadzirira mamiriro akanaka ekuuraya DC arc. Kuchengetedzwa kwekuwedzera kwekuchinjanisa ikozvino kunodiwa, sarudzo yakanakisa ndeye FLP7-PV akateedzana.

Tinokurudzira kuti vasungwa verudzi urwu vaiswe mumakamuri akaita sehororo dzeserura, dzimba dzekudzora, nemahofisi. Tele-Defender-RJ11-TELE yekuchengetedzwa kweterevhizheni michina, Net-Defender-RJ45-E100 yekudzivirira kutapurirana kwedata nemasaini eruzivo, COAX-BNC-FM yekudzivirirwa kwemidziyo inofambisa chiratidzo chevhidhiyo, Nekudzivirira-ND-CAT-6AEA zvakagadzirirwa makomputa network isati yapinda kiredhiti kadhi uye izvo chinangwa chakagadzirirwa kuchengetedza uye kutapurirana data muGeneration 5 network, uye RJ45S-E100-24U yekumisikidza mune 19-inch vashambadziri kuseva yekuchengetedza dhata yekufambisa mumakomputa network: chishandiso chinopa RJ45 zvigadziko pamwe neLSA-PLUS zvinongedzo. Zvekudzivirirwa kwedata uye yekutaurirana mitsara uye yeI & C zvishandiso uye zvinodzora zvemitsara yekugadzira, michina, uye yakakosha michina, tinokurudzira kushandisa FLD2 akateedzana iyo inonunura kuchengetedzwa nemheni inosunga uye inononoka-magetsi-kudzvinyirira diode. Izvo zvinopihwa mune akasiyana magadzirirwo ane yakasarudzika nhamba yevaviri uye yakarongwa mashandiro emagetsi mune yakapihwa akateedzana. Zvekutaurirana neRS 485 serial interface, isu tinopa chengetedzo yeaya mitsara uchishandisa FLD2 akateedzana ayo anodzivirira akabatana michina kurwisa iyo yekuyambuka uye yekureba kutenderera. Kudzivirirwa kwemakamera uye vhidhiyo chiratidzo aggregator, kunyanya mune zvemagetsi chengetedzo masystem uye emagetsi ekudzivirira moto masisitimu EPS inoshandisa iyo FLPD2 ine isiri-mitsara yezvikamu zvemafungu eImax anosvika 6.5 kA. Kudzivirirwa kwemidziyo yakabatana neiyo antenna system ine coaxial tambo inofanirwa kuve yakavezwa neyekuwedzera vadziviriri. LSP inopa akasiyana siyana macaxial macomputer emhando dzakasiyana dzekubatanidza uye chaiwo maitiro emakirasi ayo anogona kushandiswa mumhando zhinji dzekushandisa. Iyi SPD ine yakasarudzika mheni inosunga ine yakanyanya kuburitswa ikozvino kweImax (8/20 µs) = 10 kA yekupa yakavimbika dziviriro yekugamuchira uye nhepfenyuro masisitimu pakurwisa mhedzisiro yemheni padyo padyo. Ivo vanopa yakakwira attenuation yekudzoreredza isingasviki makumi maviri dB.

Nyaya yekudzivirirwa pama surges haisi nyore; dhizaini chaiyo inoenderana nezvinobatsira zvinoverengeka. Tiri kukukoka iwe kuti ufadze vanamiriri vekutengesa vanokwanisa avo vanofara kukuraira iwe mukusarudza chaiyo mhando yekudzivirira kwekuchengetedza kupa dziviriro yenzvimbo yako uye kudzikisira kurasikirwa nekukuvara kwepfuma yako.

Zvinodikanwa zvekushandisa kweSurge Protective Devices (SPDs) muindasitiri Ekudzora Mapaneru

Surge Protective Devices (SPDs) anowanzo shandiswa mumaindasitiri ekudzora mapaneru. Tafura iripazasi ndeye itemization yemhando dzeSPD uye mashandisiro avanogona kuitwa mumapaneli uko pasina tsananguro yeProcessure inodiwa. Izvo zvinodiwa zveiyo Voltage uye Nominal Discharge Yazvino (NDC) ratings dzeiyo SPD zvinoratidzwa mune tafura pazasi. MaSPD anoshandiswa kunze kwemirayiridzo yetafura iyi inoda Tsananguro yeNzira. Zvichienderana nekuongororwa kweSPD, idzi nhungamiro dzinogona kupfuurwa kana ongororo yeinjiniya ikaitwa.

Tafura yacho inoshanda kune "Imwe-Chiteshi" SPDs, ayo anowanzoitika. Iko kunoshandiswa "Mbiri-Chiteshi" SPD, ichave iri mhando inobvumidzwa mutafura iri pamusoro, zvichibva pakushandiswa kwepaneru, uye ishandiswe mukati meyayo ratidziro, kusanganisira iyo Pfupi Circuit Yazvino Chiyero (SCCR) Kana maviri-chiteshi Rudzi rwe3 SPDs asina kuratidzwa neSCCR, inofungidzirwa kuve 1000A. Kana iyo maviri-Port chishandiso Chinozivikanwa neChiziviso 4 muRondedzero Ruzivo Peji (zvichiratidza kuti kunze kwekudzivirira kwakanyanya kunodiwa), iyi SPD inoda kuve nzira yakatsanangurwa.

• R / C inoratidza Chinozivikanwa Chikamu

1, Inosanganisira mapaneru akanyorwa "Inokodzera Kushandiswa seSevhisi Yezvishandiso"

2, Iyo magetsi chiyero cheiyo SPD ichave ingangoita iyo yedunhu yakazara chikamu chikamu (LL) voltage kune ese modes (kureva LN, LL, LG). Semuenzaniso, mapaneru akapihwa 277 / 480V anoshandisa SPD yakatarwa 480V munzira dzese; mapaneru akapihwa 120 kana 120/240 anoshandisa SPD yakatarwa 240V munzira dzese.

SPD Chirevo:

Imwe Port - SPD iri mhiri-iyo-mutsara.

Mbiri Port - SPD iri mhiri-iyo-mutsara, uyezve mamwe matunhu akateedzana aine mutoro. Ikozvino kuyerera kuburikidza neichi chishandiso hakufanirwe kudarika yayo yakatarwa ikozvino ratidziro

Zvinyorwa - Kujekeswa kwezvinodiwa:

• Iko kunoratidzwa Voltage kunotsanangurwa, MCOV (Maximum Continuous Operating Voltage) kukosha kunogona kuve
• Nezita Kubuda Kwazvino (NDC): Inogona zvakare kunzi IN. Iwo chaiwo ratings ari 3kA, 5kA, 10kA, kana 20kA. Tsanangudzo - kubva kuL1449 (inodzidzisa)

Type Ratings (inoshanda kune zvitupa pamberi paApril 2010):

Type 1 - Yakagara yakabatana maSPD akagadzirirwa kuisirwa pakati pechipiri chesevhisi sevhisi uye nechuru chemutsetse wechigadzirwa chevashandisi mudziyo, pamwe nerutivi rwekutakura, kusanganisira watt-awa yemamita socket yakavharwa uye inotarisirwa kuiswa pasina yekunze yakanyanyisa. mudziyo wekudzivirira.

Izvi zvishandiso zvakanyorwa.

Nyora 2 - Zvese zvakabatana SPDs zvakagadzirirwa kuisirwa parutivi rwemutoro weiyo sevhisi yekushandisa yakawandisa mudziyo; kusanganisira maSPD ari kubazi rebazi.

Izvi zvishandiso zvakanyorwa.

Type 3 - Nzvimbo yekushandisa SPDs, yakaiswa padiki padiki kondakita kureba kwemamita gumi (10 tsoka) kubva kune yemagetsi sevhisi pombi kusvika padanho rekushandisa, semuenzaniso, tambo yakabatana, yakananga plug-in, yekugamuchira mhando uye maPSD akaisirwa pane mashandisirwo emidziyo ari kuchengetedzwa. Ona kumaka muna 30. Iyo nhambwe (gumi metres) ndeye yakasarudzika yemakondakita anopiwa pamwe kana anoshandiswa kubatanidza maSPD.

Izvi zvishandiso zvakanyorwa.

Type 4 Chikamu SPDs, kusanganisira discrete zvinoriumba pamwe nemisangano yemisangano.

Midziyo iyi inozivikanwa se "Type 4 yekushandisa mune xxx mafomu" uko xxx inogona kuva 1, 2, 3, kana "imwe". Type ratings (zvinoshanda kune zvitupa mushure maApril 2010):

Type 1 - Yakagara yakabatana maSPD akagadzirirwa kuisirwa pakati pechipiri chesevhisi sevhisi uye nechuru chemutsetse wechigadzirwa chevashandisi mudziyo, pamwe nerutivi rwekutakura, kusanganisira watt-awa yemamita socket yakavharwa uye inotarisirwa kuiswa pasina yekunze yakanyanyisa. mudziyo wekudzivirira.

Izvi zvishandiso zvakanyorwa.

Nyora 2 - Zvese zvakabatana SPDs zvakagadzirirwa kuisirwa parutivi rwemutoro weiyo sevhisi yekushandisa yakawandisa mudziyo; kusanganisira maSPD ari kubazi rebazi.

Izvi zvishandiso zvakanyorwa.

Type 3 - Nzvimbo yekushandisa SPDs, yakaiswa padiki padiki kondakita kureba kwemamita gumi (10 tsoka) kubva kune yemagetsi sevhisi pombi kusvika padanho rekushandisa, semuenzaniso, tambo yakabatana, yakananga plug-in, yekugamuchira mhando uye maPSD akaisirwa pane mashandisiro emidziyo ari kuchengetedzwa.

Izvi zvishandiso zvakanyorwa.

Type 1, 2, 3 Component Assemblies - Inosanganisira yerudzi rwechina chikamu chemusangano pamwe nekunze kana kwekunze pfupi dunhu redziviriro.

Aya ndiwo magungano akafanana neUL508's "Open Type Devices." Ivo vanogona kunge vari DIN njanji yakasungirwa kuitira mapaneru kuisirwa. Type 1 uye 2 zvikamu zveungano zvakaedzwa pfupi wedunhu kuyedzwa.

Type 4 Component Assemblies - Chikamu chemusangano chinoumbwa nechimwe chete kana zvimwe zveType 5 zvinowirirana pamwe nekukatanura (chakabatana kana chekunze) kana nzira yekuteerera nemiyedzo mishoma yazvino muUL1449 chikamu 44.4 (4th edition). Izvi zvishandiso zvinozivikanwa, zvinowanzo discrete zvine imwe mhando yekudziya. Vanogona kana kuti vangangodaro vasina kuyedzwa kwenguva pfupi.

Type 5 - Discrete chinhu surge surge suppressor, senge maMOVs anogona kuiswa paPWB, yakabatana nemitungamiriri yayo kana kupihwa mukati meyakavharirwa nenzira dzekumisikidza uye kumisa wiring.

Aya majaira anozivikanwa, kazhinji discrete asina dziviriro yekupisa.