1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?

0 Answers  

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what is the importance of earthing system on the generators big capacity and small?

0 Answers  

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why 3 phase motors are preferable over single phase motors ?

6 Answers  

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on 22.03.2015 at 17:15hrs Y phase 66kV class Power Trf-2 Current transformer has flashed over and oil came out. The failed CT has been replaced on 24.03.2015 at 13:15hrs and the Trf has been charged in presence of RT Hassan after conducting the pre-commissioning tests. On the same day at 17:00hrs the commissioned CT has again flashed over and immediately the Trf  has been isolated from power supply. It is confirmed the secondary is not opened and checked the earth integrity and is found ok. Here what would be the reason for the CT failure? 

2 Answers  

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What is the difference of grounding and earthing?

6 Answers  

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Why the rotor winding is short circuited of induction motor

1 Answers  

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how much watts are equal to one unit of energy meter?

9 Answers  

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what is the difference between earthing and grounding?

6 Answers   Bhel, Wipro,

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what is the difference in between short time and continuous rating?

1 Answers  

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why table fans rotate clockwise .while ceiling in anti clockwise?

4 Answers  

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WHY EXCITATION OF SYNCHRONOUS MACHINE IS DC NOT AC

8 Answers   NTPC,

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what is sevice settings for mccb?How can be it setted?

0 Answers   Bhel, Minda,

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