Answer / raghunath patil

it is a protecting device which can used for motor
protection to reduce the starting current or trip the motor
when it takes the exceed current than its rating.

Answer / manoj kumar rlaeddy. muthya

starter is an electrical device, which protects the motor from high starting currents. if there is any high currents occurs it will trip the motor and protects the motor from damage.

Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%

1 Answers  

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upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

0 Answers   ABC,

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Here iam a question with SYNCHRONIZATION PANNEL related issue, as i want to design a SYNC.pannel board iam giving the 2 nos of 1MVA Generators to sync pannel , then what wil be the out put of the sync pannel, whether it wil be one cable coems from the sync panel or two cables.. as iam using two transformers to meet my load demand, so pls clear me whether two cables comes from sync panel to connect to transformers or only one cable

3 Answers  

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What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?

0 Answers   Jindal Steel and Power,

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we know the value of the power factor is 0.8, we know the power factor is not depends upon the load ,then why we cant design the power factor in transformer ?

1 Answers  

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how to calculation increase power factor for single phase

0 Answers  

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Differnce between Analog & Digital

1 Answers  

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what r Grid stations?what r there role.Explain in detail

1 Answers  

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when we decide to use soft starter drive or vfd drive in mcc to operate apump?

0 Answers  

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Why the Voltage rises when Leading Power Factor is occurs?

2 Answers  

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What Is Sampling?

0 Answers   Mahatma Gandhi University,

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what is the current limit of lighting arrester ?

1 Answers   ABB,

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