Answer Posted / prashant

DOL STARTER IS DIRECT ON LINE STATER THIS IS ONLY FOER OVER LOAD PROTECTION BUT THE STAR DELTA STARTER IS MOTOR PROTECTION THAT IS IN START IN STAR WHEN INITIAL LOADING IS DONE THEN IN DELTA.

what would u consider to be the basic purchase order information you would need to proceed with a cable inspection assignment?

1475

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how to decide choke rating for drive?

1903

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in conventional fan regulators how the current varies with speed?

1459

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what is the difference between torque induced and torque load?compare them with respect to dc motor?

1605

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What is the difference between solid grounding and impedance grounding?

1550

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Which of the following alternatives will be cheaper (1) A 100 h.p AC, 3-phase motor (2) Four motors of 25 h.p each (3) Five motors of 20 h.p each (4) 10 motors of 10 h.p each explain

2526

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what is through fault?

1776

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how to increase or decrease speed in DC shunt motor by DC convertor

1737

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An impedance of 100 ohms resistance and an unknown inductance is connected across the capacitor. The resulting impedance is a pure resistance of 500 ohms ifω = 10^5 rad/sec. calculate the values of inductor and capacitor.

745

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What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439

566

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why constant voltage transformer should be start without load? and if started then what will happen?

1627

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Explain the role of a car driver as one of a feedback mechanism.

754

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is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.

1186

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Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.

1311

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On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?

3621

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