Answer / pillay

DOL starter means a Direct On Line starter, where the AC
supply is directly applied across the motor terminals
whenever it is used unlike some bigger motors where the
power supply goes through a starting system to enable a
smoother start or a reduced current start.Some examples are
star delta ,auto transformer starter ,rotor resistance
starter, soft starter etc.

What is Delta Connection? What is meant by Forward Delta & Reverse Delta & How Will be the Connection in Power Transformers?

0 Answers  

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Reduction in supply voltage by 10% will change the torque of the motor by ___.

1 Answers   UGVCL Uttar Gujarat Vij Company Ltd,

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why we testing the core balance of the transformer before comissioning?

0 Answers  

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What is the difference between the watt hour meter and Var hour meter in terms of internal connection and work theory . ie "When the meter records watt-hour an when the meter records var hours ??"

13 Answers  

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How to calculate & connection of 900KVA generator 2 sets & load(1500A)? How to choose cable size and ACB size for this load & generator? please explain me detail. Regards, Mr.Han

3 Answers   Powermec, TATA,

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Is it possible to power factor more than unity?

9 Answers   BEL,

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which inert gas is most apt to be used in a fluorescent lamp?? why ??

1 Answers  

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Is KCL applicable for close circuit?

2 Answers   Toto,

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What are the earthing required for commissionthe DG Set?

2 Answers   HSL,

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Does the isolator has a making capacity????????

2 Answers  

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formula for incomer breaker size calculation of powerfactor correction unit

3 Answers  

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a induction motar has 30-35% exciting current at no load but in transformer it is only 2-3% ofbrated current why any reason?

1 Answers   century,

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