Answer / ravindra gupta

The CVT is meant for voltage measurement in HVAC system.
Apart from this CVT is used for PLCC communication also.
However current transformer is used for current measurement
in HVAC system.

Answer / jim sreedharan

CVT is capacitive voltage transformer. We prefer cvt over
voltage transformer for transmissions like 33kv and above.
If we use voltage transformer it will be bulky.

I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

0 Answers  

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How to calculate multiplication factor in kva example 500kva ans pls ?

0 Answers  

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If we says that current is flow only when there is closed path & neutral work as a return path for the same. Then how circuit is closed in three phase as no neutral available ??

1 Answers   Nimbus Harbor Facilities Management,

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how to store the thunder power?

1 Answers   Voltech,

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I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

0 Answers  

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In winter we seem lightly an electric shock when we touch to doors(sometime)

13 Answers   Infosys, REL,

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WHAT IS THE DIFFERENCE BETWEEN A DC MACHINE OUTPUT AND RECTIFIER OUTPUT...

3 Answers   Cesco, NTPC, RRB,

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If there is major % of Voltage harmonics in the system, how can it be control or reduced?

0 Answers   JCN, Wipro,

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There are 2 Flip_Flop with logic between them. Given Clock to Q delay, logic prop. delay, set up and hold times specify maximum clock frequency of system. What happens if second output fed back to first input. Any changes? What happens with timing if second output is fed back to logic between the flops? Good Luck!

1 Answers   Qualcomm,

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WE HAVE A PROBLEM THAT THE MAIN DRIVE OF OUR CEMENT MILL HAS AN EARTHING PROBLEM?TWO OF STATOR WINDINGS INSULATION HAS BEEN COLLAPSED DUE TO AGING PROBLEM.THE PHASES HAVE BEEN BYPASSED AND NOW THE LOAD HAS BEEN INCREASED.WE CAN'T REPLACE THE MOTOR.KINDLY HELP ME BY GIVING SUGGESTION THAT HOW TO MAINTAIN THE STARTING TORQUE AND CURRENT FOR HIGH LOADS.

1 Answers   ACC,

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if a train is running on a speed of 40 K MPH and crosses a individual passing by him in 48 secs who is riding a horse with a speed of 25 K MPH. what is the length of the train?

2 Answers  

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what is the value of current and voltage that our body can resist ?

3 Answers  

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