what is the use of spst switch in performing experiment on self excited dc motor?

2 Answers  

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is there any difference between inverter and a battery

2 Answers   Cummins,

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How to calculate LT XLPE CABLE for 11 kv / 433 v , 1000 kva oil type transformer system?

0 Answers   Tata Power,

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how to decide the load on secondary of the tranformer

1 Answers   DLF,

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fuel-air ratio in a petrol engine fitted with suction carburettor,operating with dirty air filter as compared to clean filter will be

0 Answers   NIC,

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Name the component u would expect to find in a switchgear assembly?

0 Answers  

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why do we need a 4th wire in 3phase 3wire transmission line

6 Answers  

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How do i carry out or know the vector group of a Dyn1 and Dyn5 transformer

0 Answers  

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What is the difference between LT & HT Cable

4 Answers   ETA,

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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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how many types of dc batteries standards are present?

2 Answers  

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why permanent magnet generator have higher frequency of 400hz

3 Answers   Jaypee,

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