🥇Arc dziviriro system nekugona kushanda pane yazvino chiratidzo

Muchinyakare pfungwa, kuchengetedzwa kwearc muRussia ndeye kukurumidza-kuita-pfupi-yedunhu kudzivirira kunobva pakurekodha mwenje spectrum yeakavhurika magetsi arc mune switchgear; iyo yakajairika nzira yekurekodha mwenje spectrum uchishandisa fiber-optic sensors inonyanya kushandiswa. mune indasitiri yeindasitiri, asi nekuuya kwezvinhu zvitsva Mumunda wekudzivirira kwearc munharaunda yekugara, iyo modular AFDDs inoshanda pane yazvino chiratidzo, ichibvumira kuiswa kwekudzivirira kwearc pamitsetse inobuda, kusanganisira mabhokisi ekugovera, tambo, kubatana, masokisi, nezvimwewo, kufarira munyaya iyi kuri kuwedzera.

Nekudaro, vagadziri havatauri zvakanyanya nezve yakadzama dhizaini yezvigadzirwa zve modular (kana mumwe munhu ane ruzivo rwakadaro, ini ndichafara chete kupa zvinongedzo kune masosi eruzivo rwakadaro), imwe nyaya ndeye arc kudzivirira masisitimu eiyo maindasitiri chikamu, ine yakadzama. bhuku rekushandisa remapeji e122, uko musimboti wekushanda unotsanangurwa zvakadzama.

Funga semuenzaniso VAMP 321 arc protection system kubva kuSchneider Electric, iyo inosanganisira ese arc ekudzivirira mabasa akadai seyakawandisa uye arc kuona.

Inoshanda

Kudzora kwazvino muzvikamu zvitatu.
Zero kutevedzana ikozvino.
matanda echiitiko, kurekodha mamiriro ekukurumidzira.
Kusimudzira panguva imwe chete neyazvino uye nechiedza, kana nechiedza chete, kana chete neazvino.
Nguva yekupindura yezvakabuda ine mechanical relay isingasviki 7 ms, ine IGBT yekusarudza kadhi nguva yekupindura inoderedzwa kusvika 1 ms.
Customizable trigger zones.
Kuenderera mberi kuzviongorora system.
Chishandiso chinogona kushandiswa mune akasiyana arc ekudzivirira masisitimu epasi uye epakati voltage kugovera network.
Iyo Arc Flash Detection uye Arc Dziviriro system inoyera kukanganisa ikozvino uye chiratidzo kuburikidza nearc sensor chiteshi uye, kana kukanganisa kukaitika, inoderedza kupisa nguva nekukasira kuvhara iyo yazvino yekudyisa arc.

Nheyo yekubatanidza matrix

Kana uchiseta iyo activation mamiriro eiyo chaiyo arc yekudzivirira nhanho, inonzwisisika muchidimbu inoiswa kune zvakabuda zvemwenje uye azvino matrices.

Kana nhanho yekudzivirira yakasarudzwa mune imwe chete matrix, inoshanda pane yazvino mamiriro kana mwenje mamiriro, saka sisitimu inogona kugadzirwa kuti ishande pane yazvino chiratidzo chete.

Zviratidzo zviripo zvekutariswa kana chirongwa chekudzivirira matanho:

Currents muzvikamu.
Zero kutevedzana ikozvino.
Line voltages.
Phase voltages.
Zero sequence voltage.
Frequency.
Sum of phase currents.
Positive sequence current.
Negative kutevedzana ikozvino.
Kukosha kwehukama hwema negative sequence current.
Ratio yezvisina kunaka uye zero sequence currents.
Positive sequence voltage.
Negative sequence voltage.
Kukosha kwehukama hwemagetsi asina kunaka.
Avhareji yazvino kukosha muzvikamu (IL1+IL2+IL3)/3.
Avhareji yemagetsi kukosha UL1, UL2, UL3.
Avhareji yemagetsi kukosha U12, U23, U32.
Nonlinear kukanganisa coefficient IL1.
Nonlinear kukanganisa coefficient IL2.
Nonlinear kukanganisa coefficient IL3.
Nonlinear kukanganisa coefficient Ua.
RMS kukosha kweIL1.
RMS kukosha kweIL2.
RMS kukosha kweIL3.
Iko kukosha kwakaderera IL1, IL2, IL3.
Kunyanya kukosha IL1,IL2,IL3.
Iko kukosha kwepasi U12,U23,U32.
Nhamba yepamusoro U12,U23,U32.
Iko kukosha kwakaderera UL1, UL2, UL3.
Kukosha kukuru UL1,UL2,UL3.
Background value Uo.
RMS kukosha Iо.

Kurekodha emergency modes

Emergency kurekodha inogona kushandiswa kuchengetedza ese masaini masiginecha (azvino, voltages, ruzivo nezve madhijitari ekupinda uye zvinobuda). Digital inputs zvinosanganisirawo arc kudzivirira masaini.

Tanga kurekodha

Kurekodha kunogona kutangwa nekutangisa kana kukonzeresa chero nhanho yekudzivirira kana chero yedhijitari yekuisa. Iyo inokonzeresa chiratidzo inosarudzwa mune inobuda chiratidzo matrix (yakamira chiratidzo DR). Kurekodha kunogonawo kutangwa nemaoko.

Kuzvidzora

Iyo yekusagadzikana yekuyeuka yemudziyo inoshandiswa uchishandisa yakakwira-capacitor uye yakaderera-simba RAM.

Kana iyo yekubatsira magetsi ichivhurwa, iyo capacitor uye RAM inopihwa simba mukati. Kana magetsi akadzimwa, RAM inotanga kugamuchira simba kubva kune capacitor. Ichachengetedza ruzivo chero bedzi iyo capacitor ichikwanisa kuchengetedza inobvumirwa voltage. Kune kamuri ine kutonhora kwe +25C, nguva yekushanda ichava mazuva manomwe (yakakwirira humidity inoderedza iyi parameter).

Isiri-inovhuvhuta RAM inoshandiswa kuchengetedza marekodhi emamiriro ekukurumidzira uye chinyorwa chechiitiko.

Mabasa eiyo microcontroller uye kutendeseka kwewaya dzakabatana nayo, pamwe nekushanda kwesoftware, inotariswa neyakasiyana yekuzviongorora network. Pamusoro pekutarisa, iyi network inoedza kutangazve iyo microcontroller kana ikatadza kushanda. Kana iyo reboot ikasabudirira, iyo yekuzviongorora inoisa chiratidzo kuti itange kuratidza chisingaperi chikanganiso chemukati.

Kana iyo yekuzviongorora ikaona kukanganisa zvachose, inodzima imwe inobuda relay (kunze kwekuzviongorora-yega basa rekubuda relay uye inobuda relay inoshandiswa nearc dziviriro).

Simba remukati rinotariswa zvakare. Mukushaikwa kwesimba rekuwedzera, chiratidzo chealarm chinotumirwa otomatiki. Izvi zvinoreva kuti iyo yemukati kukanganisa kuburitsa relay inopihwa simba kana ebetsero magetsi akabatidzwa uye hapana kukanganisa kwemukati kunoonekwa.

Iyo yepakati yuniti, yekupinza / yekuburitsa zvishandiso uye masensa anotariswa.

Zviyero zvinoshandiswa nearc kudzivirira basa

Zviyero zvezvino muzvikamu zvitatu uye pasi kukanganisa ikozvino kwekudzivirira kwearc kunoitwa nemagetsi. Zvigadzirwa zvemagetsi zvinoenzanisa mazinga emazuva ano nemagadzirirwo erwendo uye anopa zviratidzo zvebhinari "I >>" kana "Io >>" yebasa rekudzivirira kwearc kana muganhu wapfuura. Zvose zvazvino zvikamu zvinotariswa.

Zviratidzo "I>>" uye "Io >>" zvakabatana neFPGA chip, iyo inoita basa rekudzivirira arc. Iko kuyerwa kwechiyero chekudzivirira kwearc ndeye ± 15% pa50Hz.

Harmonics uye yakazara isiri-sinusoidality (THD)

Chishandiso chinoverengera THD seperesenti yemafiriji uye voltages paiyo yakakosha frequency.

Harmonics kubva ku2nd kusvika ku15 yechikamu chemhepo uye voltages inotariswa. (Iyo 17th harmonic ichave yakabatanidzwa muchikamu chegumi neshanu cheharmonic. Izvi zvinokonzerwa nekuyera kwedhijitari.)

Voltage kuyerwa modes

Zvichienderana nerudzi rwemashandisirwo uye mashanduri aripo aripo, mudziyo unogona kubatanidzwa kune yakasara voltage, mutsara-kune-chikamu kana nhanho-kune-chikamu voltage. Iyo inogadziriswa parameter "Voltage Measurement Mode" inofanirwa kuiswa zvinoenderana nekubatanidza kuri kushandiswa.

Nzira dziripo:

"U0"

Chishandiso chakabatana ne zero sequence voltage. Directional ivhu rekudzivirira mhosva rinowanikwa. Line voltage kuyerwa, kuyerwa kwesimba uye overvoltage uye undervoltage dziviriro hazviwanikwe.

"1LL"

Chigadzirwa chacho chakabatana nemagetsi emutsara. Single-phase voltage kuyerwa uye undervoltage uye overvoltage dziviriro iripo. Directional pasi kudzivirira kukanganisa hakusi kuwanikwa.

"1LN"

Chigadzirwa chacho chakabatanidzwa kune imwe chikamu voltage. Single phase voltage zviyero zviripo. Mumanetiweki ane hwakasimba hwakavakirwa uye kubhadharwa kwazvakarerekera, undervoltage uye overvoltage dziviriro iripo. Directional pasi kudzivirira kukanganisa hakusi kuwanikwa.

Symmetrical zvikamu

Mune matatu-phase system, voltages uye currents zvinogona kugadziriswa kuita symmetrical components, maererano neFortescue.

Izvo zvikamu zve symmetrical ndezvi:

Kutevedzana kwakananga.
Reverse kutevedzana.
Zero kutevedzana.

Zvinhu zvinodzorwa

Ichi chishandiso chinokubvumira kudzora zvinhu zvinosvika zvitanhatu, senge switch, disconnector kana banga rekumisa pasi. Kudzora kunogona kuitwa maererano nemusimboti we "sarudzo-chiito" kana "kutonga kwakananga".