Kusankha olondola a dera baka ichidachi

Nthawi zambiri, nthawi ifika m'malo Kulumikizana magetsi ndi dera baka ichidachi ayenera m'malo pa kukonza kapena zomangamanga. Pocheza ndi shopu zamagetsi pafupifupi nthawi zonse, tikuona kuti 99% ya osiyanasiyana dera-breakers mpaka zipangizo ndi tripping pamapindikira C. Choncho, zikuoneka ngati kuti ichi ndi chokhacho zotheka ndi lolondola Baibulo. Nkhani ili laperekedwa kwa review ya imodzi yofunika makhalidwe a dera-baka ichidachi - tripping limaoneka lokongola.

Zokhotakhota tripping a dera-breakers zigwirizana ndi magawo awiri:

• kudzipheralo zimamuchulukira chitetezo (matenthedwe): apamwamba pano, wamfupi nthawi kutali;
• tripping pa madera yochepa (mu atomu kumasulidwa) ngati panopa kuposa kuika mfundo za chitetezo ulendo nthawi zosakwana milliseconds 10.

Pakuti mafunde yochepa dera pamwamba nthawi 20 oveteredwa panopa, nthawi zangochitika makhalidwe (kuchokera zokhotakhota) Musapereke okwanira mwatsatanetsatane kudzionetsera.

Disabling lalikulu mafunde yochepa dera amakhala ndi zokhotakhota panopa malire (uyenderere panopa ndi mphamvu). Nthawi okwana kuchotsedwa kungakhale pafupifupi wofanana ndi kasanu mtengo wa alionse (I2t) / (I) 2.

Poona selectivity awiri dera-breakers

Ndi superimposing dera baka ichidachi pamapindikira ku pamapindikira kumtunda dera baka ichidachi angaletse ngati izi osakaniza zipangizo kusankha ngati zimamuchulukira (selectivity kuti mfundo zonse panopa, mpaka setpoint apamwamba mu atomu lophimba). yachinsinsi amenewa ndi wololera pamene mmodzi wa awiriwo breakers dera ali ndi chosinthika akonzedwa mfundo; zipangizo ndi zoikamo zonse, nkhaniyi angapezeke mwachindunji mu selectivity tebulo. Kuyesa selectivity kuti yochepa dera m'pofunika kuyerekeza makhalidwe mphamvu zipangizo awiri.

Chitsanzo: Malinga tripping pamapindikira mu zimakwana, dera baka ichidachi iC60 Schneider Zamagetsi Acti 9 (pamapindikira C, dzina lokha panopa 20 A) kuletsa panopa 100 A (i.e. 5-pindani ndi oveteredwa panopa Mu) of:
• masekondi osachepera 2;
• munthu pazipita masekondi 7.

Nthawi makhalidwe panopa

Posankha nthawi makhalidwe panopa ayenera ouschestvlyatsya malinga ndi mtundu limateteza dongosolo monga kutetezela zofunika magetsi dongosolo ndi nthawi zosiyana. Pa nkhani imeneyi, mu zida lonse ali 6 zokhotakhota osiyana.

pamapindikira B

Decoupling: 3 5 (oveteredwa panopa) IEC 60898
Chinali cholinga makamaka pofuna kuteteza magudumu ndi zimene palibe pachimake inrush panopa

pamapindikira C

Decoupling: 5 10 (oveteredwa panopa) IEC 60898
Chinali cholinga kuteteza Kulumikizana pa nkhani ya cholinga ambiri

Pamapindikira D ndipo K

Decoupling: 10 14 (oveteredwa panopa) IEC 60947,2
Chinali cholinga kuteteza madera ndi mkulu poyambira panopa, ndi kuteteza imennoo tiransifoma ndi Motors.

pamapindikira Z

Decoupling: kuchokera 2.4 kuti 3.6 Mu (oveteredwa panopa) IEC 60898
Zokha makamaka pofuna kuteteza zipangizo zamagetsi.

pamapindikira MA

Decoupling: 12 (oveteredwa panopa) IEC 60898
Lakonzedwa kuteteza yekha zipangizo kudzipheralo monga pano palibe matenthedwe tripping chipangizo.

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