Answer / sufiyan

Definitely if you are using EOT crane then the cable tray must be installed above the height of cross travel of that crane + 0.5 mtr for safety

why we are using auto transformer in sub station mostly???

2 Answers  

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can we use inductor in case of d.c.,if yes then what will happen in circuit

3 Answers   JSW,

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ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

0 Answers  

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How many lightning arrestors to be installed on 50MX60MX10M building and is there any formular for that?

0 Answers  

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1. what is the power factor of a purely inductive load? 2. Which type of transformer connection is preferred in case of power supply transformers? 3. In power transformer usually which winding is closer to the core? 4. what will happen to the generated emf if the no. of poles of an alternator is increased?

5 Answers  

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How to run a three phase motor into single phase........

0 Answers   Oil India,

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What is inductance?

0 Answers  

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What is the main uses of VCB & ACB?

2 Answers  

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Why P.F(power factor)relay should not be connected to the D.G(diesel generator) incomer side

1 Answers   ABB, Corsa,

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working principle of UPS

15 Answers   Mantri,

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How to check the Bushings of the transformer?

0 Answers  

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What are the rating wise protections required for Generators from 600KVA to 2000KVA

3 Answers  

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