Kushandisa Kwekuchengetedza Kureba kweArc uye Waveform Distortion Resistance Test Bhenji reMCCB

Mumakore achangopfuura, nekuvakwa kwakadzama kwezvivakwa zvitsva muChina, shanduko yakazara ye5G base zviteshi, kushandiswa kwakakura kwemagetsi emagetsi emagetsi uye kukurumidza kuvandudzwa kwemagetsi ekugadzira photovoltaic, zvinodiwa zvechinyakare low-voltage midziyo iri kuwanikwa. kumusoro nepamusoro.Kune maindasitiri emaindasitiri mukusimudzira nekushandiswa kwenzvimbo dzinorwadza, akaumbwa kesi yedunhu breaker arcing yakachengeteka chinhambwe uye waveform distortion kuramba yekuyedza chirongwa, Delta, Delta chiridzwa chiri pajoinhi kune vadzidzisi vepamusoro nyanzvi kugadzira nzvimbo mbiri dzinoenderana nezvinodiwa zvekuyedzwa kwakakosha. midziyo, yakagadzirirwa kubatsira mabhizinesi kugadzirisa bhodhoro rekushandisa kwechigadzirwa, kusangana nezvinodiwa nemushandisi, kuvandudza kunaka kwekuita kwechigadzirwa.

Molded case circuit breaker arcing safe distance test stand inonyanya kushandiswa neplastic shell type circuit breaker mukugadzira nekushandisa, tichifunga nezvekuchengetedzwa kureba hakuna kukwana uye kunogona kukonzera kukuvadza, senge arcing fault inoda kudzidza plastiki shell type circuit breaker pa. iyo yakakosha pakuita flashover yakachengeteka yekuona chinhambwe, kusanganisira iyo itsva bvunzo yekubatanidza wedunhu, izvo zvekuwedzera zvinodiwa uye nzira dzekuyedza, nezvimwewo, Iyo arc pesvedzero yemhando yepurasitiki yakavharirwa wedunhu breaker inoteedzerwa, uye nzvimbo yegiredhi yakakamurwa zvinoenderana ne dhigirii rearc pesvedzero, uye inoenderana chigadzirwa chekuchengetedza chinhambwe referensi uye yekumisikidza mazano anorongwa kune yega yega

Njodzi dzekubhururuka

Arc tembiricha yakakwira kusvika zviuru zvemadhigirii Celsius, arc pachayo inewo magetsi conductivity, kukuvadza kwakanyanya., chinja muindasitiri yemagetsi emagetsi jet yearc, inogona kupfapfaidza zvakananga kune switchgear, dhizaini yekuparadzira, senge kugadzika pane simbi furemu, inokonzeresa kukuvara kwesimbi conductor, mitsara iratidzike isina kujairika surge voltage, inopisa opareta, midziyo yemoto, kugadzira iyo Insulation kuchembera mamiriro, kana pfupi-yedunhu kukanganisa, kuputika, moto, kutyisidzira kuchengetedzwa kwehupenyu uye pfuma, Mu petroleum, makemikari, migodhi uye mamwe maindasitiri, kutarisisa kwakanyanya kunofanirwa kubhadharwa kukuvadza kwearc.

MCCB inogadzira arc kana mafambisirwo ayo anofamba uye ma static contacts akapatsanurwa, uye chikamu chearc kana ionized gasi chinokanda kunze kwearc gap kubva pamagetsi eanopwanya.Iyo arc pachayo ndiyo yakakura ikozvino.Zviri nyore kukonzeresa pfupi dunhu uye kudzika tsaona dzedunhu mapfupi pakati peC akafumura conductor uye pasi.Kuti uve nechokwadi chekuchengetedzwa, mushandisi anofanirwa kuchengetedza chinhambwe kubva kune data rinopihwa nemugadziri wechigadzirwa samples kana zvakatemwa.

Molded case circuit breaker kana ichityora hombe pfupi-circuit ikozvino, iyo inoshanduka uye yakamira yekubata arc yakaparadzana, chikamu chearc kana ionized gasi arc yekupfapfaidza muromo inobuda kubva kudunhu remagetsi emagetsi kupera, pachayo imhando yearc hombe iripo, zviri nyore. kukonzeresa pakati peakafumura conductive uye asina chaja muviri uye "pasi" (seti yakakwana yemidziyo yesimbi goko iri grounding) ye interphase short circuit uye grounding short circuit tsaona.Kuti uve nechokwadi chekuchengetedzwa, mushandisi anofanira kusiya imwe chinhambwe zvichienderana nedata rakapihwa nemugadziri wechigadzirwa sampuro kana bhuku rekuraira.Kana kureba kureba kwebhokisi rekugovera uye kabati isina kukwana, zvigadzirwa zvine diki arc kure kana zero arc zvinogona kusarudzwa kuti ive nechokwadi chekuchengetedzwa kwekushandisa magetsi.

Molded case circuit breaker in low voltage distribution system kushandiswa kwakakura, asi mukuputsa kunobudisa arc, arc kunze kwechimiro chechigadzirwa kuita arc, arc inokuvadza, kuonekwa kwayo kunofanira kusangana nezvinodiwa nemitemo, Nzira huru. kudzikisa kureba kwearc kunosanganisira kuvandudza chimiro chekubatana uye arc yekudzima sisitimu yekuvandudza mashandiro earc kudzimisa, kutora arc inonyudza mudziyo, kutora yazvino yekumisikidza chimiro, kutora chizvarwa chechina kaviri break point chimiro, uye kutora vacuum arc kudzimisa. chamber.

Molded case circuit breaker waveform distortion resistance test stand iri kunyanya muchiedza cheyakakosha mamiriro ekushandisa epurasitiki shell type circuit breaker, zvichienderana nekusiyana kwakasiyana kweajairwa nonlinear mutoro uye harmonic chiyero kugovera, uye bvunzo maitiro ekuenzanisa kuyedza, yakarongeka ongororo. pane data rekuyedza rinogona kutevedzera akasiyana-siyana asina mutsara harmonic mutoro, kukanganisa mutoro, yakashata mutoro;Kuremerwa kwayo curve uye simba rekushanda mamiriro anogona kurongwa pachine nguva zvichienderana nekuyedza kudiwa, uye inogona kutakurwa otomatiki zvinoenderana neyakagadzikwa yekumhanya nguva.Kushanda kwemidziyo kuri nyore uye kunochinjika, uye kwave kushandiswa zvakanyanya mumagetsi marabhoritari bvunzo system uye ese marudzi emagetsi emagetsi chigadzirwa bvunzo chikuva.

Harmonic chizvarwa mudziyo musimba sisitimu ndiyo harmonic sosi, isiri-mutsara magetsi emidziyo.Nekushandiswa kwakakura kwemasimba makuru emagetsi emagetsi uye akasiyana-siyana asina mutsara mitoro muhurongwa, kusvibiswa kweharmonic kunogadzirwa navo kwave kuchiwedzera kuzivikanwa uye kutariswa.Kuti tidzivise maharmonics ehurongwa, isu tinofanirwa kunzwisisa hunhu hweimwe neimwe harmonic sosi.

Mhando dzakasiyana dze harmonic dzakakamurwa kuita:

(1) Yazvino mhando harmonic sosi.

Iyo system harmonic sosi ine hunhu hwechizvino sosi, uye yayo harmonic yemukati zvinoenderana neayo maitiro uye haina chekuita neiyo system paramita.Iyo inogadziridza yeDC side inductance sefa ndeye yazvino mhando harmonic sosi.

(2) voltage mhando harmonic source

MCCB waveform distortion resistance test bhenji yakaenzana nepamusoro-inoita simba harmonic jenareta, matatu-chikamu chakazvimirira kushanda, inogona kushanda munhatu-chikamu, imwe-chikamu modhi, harmonic nguva kusvika 41 nguva.Chikamu uye amplitude yeharmonic yega yega inogona kurongwa yakazvimirira, iyo inogona kutevedzera yakajairwa kuramba uye inductive mutoro pamwe neyakaomesesa nonlinear mutoro.Iyo harmonic inokonzerwa nemitoro yakasiyana mumagetsi emagetsi inogona kufananidzwa uye kubudiswazve.

Programming parameters inosanganisira yakakosha wave uye harmonic voltage, yazvino, simba, chikamu, amplitude, nezvimwe.

Iyo amplitude yekukanganisa mutoro inogara ichigadziriswa.

Inogona kuona kuenzanisa kwenzvimbo dzakasiyana dzekushanda, senge nguva yenyika, voltage, ikozvino, magetsi paramita, nezvimwe, izvo zvinogona kungoitwa zvinoenderana nenguva yakatarwa.

Ikozvino kubuda kwechokwadi kwakakwirira, kururamisa kunosvika ± 1%, 10A pazasi kwete pasi pekuwedzera kana kubvisa 0.1A;

THD yakaderera harmonic (3-5) kunyatsojeka haisi kupfuura ± 2%, imwe chete harmonic kutsauka ndeye ± 8%, single waveform distortion rate content ≥40%, total harmonic distortion rate ≥100%;

Panguva imwecheteyo, michina ine basa re AC simba regenerative load, iyo inogona kudyisa 100% AC simba rekubuda kwechigadzirwa chakaedzwa kune gidhi remagetsi, pasina kuunza kupisa, kuchengetedza simba uye kuchengetedza kwezvakatipoteredza.

Waveform kudzokorodza basa: iyo yekuremedza mudziyo inogona kuiswa otomatiki zvinoenderana neyakaomeswa waveform faira yakarekodhwa kana kuunganidzwa ipapo, kuitira kuti uone basa rekuti chete mutoro waveform unogona kudhindwa ipapo kana hunhu hunodiwa.

Load simulation mamiriro anogona kugadzirwa zvinoenderana nezvinodiwa:

1) Inogona kutevedzera ese matatu-chikamu mutoro uye imwechete-chikamu mutoro;

2) Iyo voltage, yazvino uye simba remutoro yakakosha wave uye harmonic wave inogona kugadzirwa zvakasiyana;

3) Iyo yakakosha wave uye harmonic voltage, ikozvino uye simba inogona kusetwa zvakateerana amplitude, chikamu, simba chinhu uye mamwe ma paramita;

4) Iyo amplitude uye chikamu paramita yeharmonic yega yega inogona kuiswa zvakasiyana, yakazvimirira kubva kune imwe neimwe, uye haina kukanganisa mumwe nemumwe;

5) Iyo amplitude yekukanganisa mutoro inogona kugadziriswa nguva dzose;

6) Inogona kuona kwakasiyana-siyana yekushanda nyika simulation, nguva yematunhu akasiyana, voltage, ikozvino, simba paramita;

7) Inogona kuiswa yakazvimirira.