Kugwiritsa Ntchito Chitetezo Distance of Arc ndi Waveform Distortion Resistance Test Bench ya MCCB

M'zaka zaposachedwa, ndikumanga mozama kwa zomangamanga zatsopano ku China, kusintha kwakukulu kwa masiteshoni a 5G, kugwiritsa ntchito kwambiri zida zamagetsi zamagetsi komanso kukula kwachangu kwamagetsi opangira magetsi a photovoltaic, zofunikira pazida zamagetsi zotsika kwambiri zikufika. apamwamba ndi apamwamba.Kwa mabizinesi amakampani pakukula ndi kugwiritsa ntchito mfundo zowawa, kuumbidwa mlandu wosweka arcing mtunda wotetezeka ndi ntchito yoyezetsa kupotoza kwa waveform, Delta, Delta chida cholumikizirana ndi aphunzitsi apamwamba kuti apange madera awiri mogwirizana ndi zofunikira za mayeso apadera. zida, zopangidwira kuti zithandizire mabizinesi kuthana ndi vuto la kugwiritsa ntchito zinthu, kukwaniritsa zofuna za ogwiritsa ntchito, kukonza magwiridwe antchito azinthu.

Kuwumbidwa mlandu wosweka dera arcing otetezeka mtunda mayeso kuyimirira makamaka kwa pulasitiki chipolopolo mtundu dera wosweka mu ndondomeko ya unsembe ndi ntchito, kuganizira chitetezo mtunda sikokwanira ndipo zingayambitse mavuto, monga arcing cholakwika ayenera kuphunzira pulasitiki chipolopolo mtundu dera wosweka pa. Mfundo yofunika kwambiri pakuzindikira mtunda wotetezeka wa flashover, kuphatikiza gawo latsopano lolumikizira mayeso, zofunikira zowonjezera ndi njira zoyesera, ndi zina zambiri, kuchuluka kwa mphamvu ya arc ya pulasitiki yotsekera dera yozungulira imayerekezedwa, ndipo gawo lagawo limagawidwa molingana ndi kuchuluka kwa chikoka cha arc, ndipo zofananira zachitetezo chachitetezo chamtundu wazinthu ndi malingaliro oyika zimaperekedwa kwa aliyense

Zowopsa za ma arcs owuluka

Arc kutentha kwambiri ngati zikwi za madigiri Celsius, arc palokha ali madutsidwe magetsi, kuvulazidwa kwambiri., sinthani mu makampani amagetsi amagetsi a arc, amatha kupopera mwachindunji ku switchgear, gulu logawa, monga kuyika pazitsulo zachitsulo, zingayambitse kuwonongeka kwa chitsulo, mizere imawoneka yodabwitsa kwambiri, yoyaka moto, zida zamoto, kupanga kutchinjiriza ukalamba chikhalidwe, kapena yochepa dera zolakwika, kuphulika, moto, kuopseza chitetezo cha miyoyo ndi katundu, Mu mafuta, mankhwala, migodi ndi mafakitale ena, chidwi kwambiri ayenera kulipidwa kuvulaza arc.

MCCB imapanga arc pamene zolumikizana zake zosuntha ndi zolumikizana zosasunthika zimapatulidwa, ndipo gawo la arc kapena gasi wa ionized limachotsa kusiyana kwa arc kuchokera kumagetsi osweka.Arc palokha ndi yamphamvu kwambiri.Ndikosavuta kuyambitsa ngozi zazifupi ndikuyambitsa ngozi zazifupi pakati pa C kondakitala ndi nthaka.Kuti atsimikizire chitetezo, wogwiritsa ntchito ayenera kukhala patali ndi zomwe zaperekedwa ndi zitsanzo zazinthu zopangidwa ndi wopanga.

Kuwumbidwa mlandu wosweka wosweka pamene kuswa lalikulu lalifupi dera panopa, zamphamvu ndi malo amodzi kukhudzana arc padera, mbali ya arc kapena ionized mpweya arc kupopera pakamwa spews kuchokera dera wosweka mphamvu mapeto, palokha ndi mtundu wa lalikulu arc panopa, n'kosavuta. kuchititsa pakati poyera conductive ndi anabala anaikira thupi ndi "nthaka" (yathunthu zida zida zitsulo chipolopolo ndi grounding) wa interphase yochepa dera ndi grounding yochepa dera ngozi.Kuti atsimikizire chitetezo, wogwiritsa ntchito ayenera kusiya mtunda wina malinga ndi zomwe zaperekedwa ndi chitsanzo cha mankhwala a wopanga kapena buku la malangizo.Ngati kutalika kwa mtunda wa bokosi logawa ndi kabati sikukwanira, zinthu zomwe zili ndi mtunda waung'ono wa arc kapena zero arc zitha kusankhidwa kuti zitsimikizire chitetezo chamagetsi.

Kuwumbidwa mlandu wosweka wosweka mu otsika voteji kugawa dongosolo kumwa ndi lalikulu, koma ndondomeko kuswa adzatulutsa arc, arc kunja kwa mawonekedwe a mankhwala mu arc, arc ndi zovulaza, kuzindikira kwake kuyenera kukwaniritsa zofunikira ndi zofunikira, Njira zazikuluzikulu. Kuchepetsa mtunda wa arc kumaphatikizapo kukonza njira yolumikizirana ndi zida zozimitsa za arc kuti zithandizire kuzimitsa kwa arc, kugwiritsa ntchito chipangizo cholumikizira arc, kugwiritsa ntchito njira yochepetsera yomwe ilipo, kutengera mawonekedwe a m'badwo wachinayi, ndikugwiritsa ntchito chozimitsa cha vacuum arc. chipinda.

Kuwumbidwa mlandu wosweka wosweka waveform kupotoza kukana mayeso kuyimirira makamaka mu kuwala kwapadera ntchito chikhalidwe cha pulasitiki chipolopolo mtundu dera wosweka, malinga ndi magulu osiyanasiyana katundu wamba nonlinear ndi harmonic mlingo kugawa, ndi mayeso ndondomeko kayeseleledwe kuyesera, kusanthula mwadongosolo pa data mayeso akhoza yesezera osiyanasiyana nonlinear harmonic katundu, zimakhudza katundu, zilonda katundu;katundu wake pamapindikira ndi mphamvu ntchito chikhalidwe akhoza anakonza pasadakhale malinga ndi kufunika mayeso, ndipo akhoza yodzaza basi malinga ndi preset akuthamanga nthawi.Kugwiritsa ntchito zidazo ndi zophweka komanso zosinthika, ndipo zakhala zikugwiritsidwa ntchito kwambiri pamayeso a labotale yamagetsi ndi mitundu yonse yamagetsi amagetsi amagetsi oyesera.

Chipangizo chopangira ma Harmonic mu mphamvu yamagetsi ndiye gwero lamphamvu, ndi zida zamagetsi zopanda mzere.Ndi kugwiritsa ntchito kwakukulu kwa zida zamagetsi zamagetsi zamagetsi ndi katundu wosiyanasiyana wopanda mzere mu dongosolo, kuipitsidwa kwa harmonic komwe kumapangidwa ndi iwo kwakhala kodziwika komanso kulabadira.Pofuna kupondereza ma harmonics a dongosolo, tiyenera kumvetsetsa makhalidwe a gwero lililonse la harmonic.

Mitundu yosiyanasiyana ya ma harmonic imagawidwa kukhala:

(1) Magwero amtundu wamakono.

Dongosolo harmonic gwero ali makhalidwe a gwero panopa, ndi zili harmonic zimadalira makhalidwe ake ndipo alibe chochita ndi magawo dongosolo.Chowongoleranso fyuluta ya DC side inductance ndi ya mtundu wapano wa harmonic source.

(2) voteji mtundu harmonic gwero

MCCB waveform kupotoza kukana mayeso benchi ndi wofanana mkulu-ntchito mphamvu harmonic jenereta, magawo atatu odziimira pawokha, akhoza kugwira ntchito mu magawo atatu, single-gawo mode, harmonic nthawi mpaka 41.Gawo ndi matalikidwe a harmonic aliyense akhoza kukonzedwa paokha, amene angatsanzire ochiritsira kukana ndi inductive katundu komanso zovuta nonlinear katundu.Ma harmonic omwe amadza chifukwa cha katundu wosiyanasiyana pamaneti amagetsi amatha kufananizidwa ndikupangidwanso.

Magawo amapulogalamu amaphatikiza mafunde oyambira ndi ma voltages a harmonic, apano, mphamvu, gawo, matalikidwe, etc.

The matalikidwe a mphamvu katundu mosalekeza chosinthika.

Itha kuzindikira kuyerekezera kwamayiko osiyanasiyana ogwiritsira ntchito, monga nthawi ya dziko, voteji, panopa, magawo amagetsi, ndi zina zotero, zomwe zingathe kuyendetsedwa molingana ndi nthawi yoikika.

Kulondola kwaposachedwa ndikwapamwamba, kulondola kuli mpaka ± 1%, 10A pansipa osachepera kuphatikiza kapena kuchotsera 0.1A;

THD otsika harmonic (3-5) mwatsatanetsatane si oposa ± 2%, single harmonic kupatuka ndi ± 8%, limodzi waveform kupotoza mlingo okhutira ≥40%, okwana harmonic kupotoza mlingo ≥100%;

Panthawi imodzimodziyo, zidazo zimakhala ndi ntchito ya AC mphamvu yowonjezera mphamvu, yomwe imatha kudyetsa 100% AC mphamvu yamagetsi yamagetsi yoyesedwa ku gululi yamagetsi, popanda kutulutsa kutentha, kupulumutsa mphamvu ndi kuteteza chilengedwe.

Ntchito yobwerezabwereza ya Waveform: chida chonyamulira chingathe kukhazikitsidwa molingana ndi fayilo yolemetsa yojambulidwa kapena kupangidwa pomwepo, kuti muzindikire ntchito yomwe mawonekedwe amtundu wonyamula amatha kupangidwanso pomwepo kapena mawonekedwe ofunikira.

Katundu kayeseleledwe mikhalidwe akhoza kukhazikitsidwa malinga ndi zofunika:

1) Itha kutsanzira katundu wa magawo atatu ndi gawo limodzi;

2) Mphamvu yamagetsi, yapano ndi mphamvu yamafunde oyambira ndi mafunde a harmonic zitha kukhazikitsidwa padera;

3) The wofunika yoweyula ndi harmonic voteji, panopa ndi mphamvu akhoza ankalemekeza matalikidwe, gawo, mphamvu chinthu ndi magawo ena;

4) The matalikidwe ndi gawo magawo a harmonic aliyense akhoza kukhazikitsidwa padera, popanda wina ndi mzake, ndipo sizimakhudza mzake;

5) The matalikidwe a mphamvu katundu akhoza kusinthidwa mosalekeza;

6) Amatha kuzindikira mitundu yosiyanasiyana yoyeserera ya boma, nthawi yamayiko osiyanasiyana, magetsi, magetsi, magawo amagetsi;

7) Ikhoza kukhazikitsidwa palokha.