For 7.5kw star delta starter how to calculate
1. Mccb rating
2. Contactor rating
3. Over load relay rating
Answer / joeredd
You need to know the full load motor current at the supply voltage you are going to be using. Your contactors/overload are rated on current. Their voltage rating needs to be higher than the supply voltage. (I.e. 415vac supply, 600vac rating). Knowing the motor wattage (7.5Kw) on its own is not helpful.
Is This Answer Correct ? | 3 Yes | 0 No |
Define working of prim mover governer in alternator?
can we identify the direction of power flow in transmission line by after only looking the tower
7 Answers TNEB Tamil Nadu Electricity Board,
How regulator control the fan speed?
why DC source is used to idetify the polarity of CT/PT?
what are safety seals in HT line?
what is the difference between earthing and grounding?
What are books to be referred for KPTCL exam?
why make protection 85% of winding?
Will any motor burn if voltage provided is lesser than the rated voltage???? If yes, then how is speed control possible with voltage control
what is the function of series reactor
3 Answers Adhunik, INOX, RMSI,
i am venkat i got gre 930(verbal 270 quanta 660) and my toefl score 105..here question is why u got less score in gre ? what i supposed to tell...any chance of rejection is there...my accadamics record is very good
how much Hp motor is required for water suction pump in home uses ?