How the annunciator works ? How to do its wiring

0 Answers   Ford, MSEB,

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why there is a fault occurs, if a phase wire touches ground.. and the fault not occurs when we connect a bulb between phase and ground..??

1 Answers  

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what is power load and lighiting load?

2 Answers  

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what is the speed of mixie?

5 Answers   Keltron, TCS,

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Why different types of connection in transformers are used? (star/star,star/delta,delta/star,delta/delta)Why we are only taking in consideration of star/delta type transformers? if only star/delta is good in practice where doses other type of transformers are used? Note: i want to know place of using different types of transformers other than Star/delta type with brief description.

1 Answers   Electrical Tech,

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starting torque is increased and current is decreased by using external resistance in a slip ring induction motor. How??

3 Answers  

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How is a capacitor bank is designed ?

2 Answers   Asian Paints,

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how to find the voltage drop

1 Answers   Sharjah Electricity and Water Authority SEWA,

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why transformer are rated in KVA not in watt?

7 Answers   DMRC, L&T, TCS,

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what will happen at the time of CT saturation?and what will be the Relay's function at the time of CT saturation?

2 Answers  

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1. what is the power factor of a purely inductive load? (i) Zero (ii) Lagging (iii)Leading (iv) Unity 2. which type of transformer connection is preferred in case of power supply transformer? (i) Star/Star (ii) Delta/Delta (iii) Star/Delta (iv) Zig Zag/Star

2 Answers  

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Which type of control system is expensive — closed loop or open loop?

1 Answers   GE,

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