Nahitaji msaada kidogo

NileSat

JF-Expert Member
Joined
Mar 31, 2015
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wakuu nilikuwa nauliza namna kuchagua aina ya starter kwa motor nimepekua pekua na kukuta motor ya kuanzia 1 up to 10Hp naweza ifungia direct online starter but zaidi ya hapo ni vyema nikafunga Star delta Je nachaguaje size ya contactors zangu? kwa dol na star delta na je kwa upande wa change over switch pia nachaguaje ukubwa wa contactors ambazo ntatumia naelewa kuna 220V coil na 380V coil nachaguaje sasa kuanzia ampcity ya contractors?
 
kama motor yako inabeba say 10A kwa line...chukua contactor yenye ukubwa zaidi ya 10A upande wa contacts ampacity...ratings ziko ktk iyo contactor lable ...kama iko rated 380V coil..then unatumia L1 na L2 kulisha coil or else itakua inachechemea kama iko rated 220V coil then tumia L na N kulisha coil
 
point ni kwamba kama una access na Neutral ktk eneo la wiring then tumia 220V ..380V ni kwa pahala Neutral ni adimu kupatikana...nicheki apa 0712 163248 kama una doubt
 

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