Answer / surendran

-The reason may be the secondary circuit is open.

-The rating of the ct may be wrong.

-There may be internal short between the winding turns.

-The insulation resistance of the winding may be less.

Answer / ganesh r

b coz of high current

Answer / siva.e

In 132KV transformer primary voltage is high.but in 6.6KV
transformer primary current is high when compared to 132KV
transformer so the coil get burned.

Describe Non I.S. Earth System and why is it used?

0 Answers   KPJV,

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if we give DC suply to the AC motor what hapen

5 Answers   TATA,

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can i know how to design overcurrent setting and earth fault for 11kv & o.433kv system assuming tx 1000kva.

2 Answers  

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what do you mean by PF correction. A motor is rated at 15 kw,415 volts, 0.7 pf and eff of 0.92. The powerfactor is improved to 0.98 by adding capacitors at the bus. calculate the current drawn by motor under full load condition before and after pf correction

5 Answers  

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what is brushless generator?

2 Answers   Jk Tyres,

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CAn any one can tell me what is the operation of ceiling fan and how it will start

2 Answers  

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if there are six generators (3 gas CATT, one Jenbacher o1 MW each, and two nos Diesel 01 no 01 mw other 0.65mw EDGs ( say), 3 CAtt gas set have identical pole pitch,01mw EDG and Jenbacher gas Set have different pole pitch, how their power connection can be done to connect a common bus bar during installation. in short, how different pole pitched generators power connection can be done to connect a common busbar system through generators incomer ACBs.

0 Answers  

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what is the relation between the size of the machine and the frequency? (when the frequency increases the size of machine will increase,why?)

2 Answers  

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What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?

0 Answers  

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how to calculate the capacitor rating for improving power factor

10 Answers   L&T, Property Solutions, Synergy, TAFE,

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7. Why AC motors, AC bulbs etc... are donot operated by DC signals? and Why DC motors, DC bulbs etc... are donot operated by AC signals?

2 Answers   Bhel,

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Can I use measuring current transformers in protection purposes?

7 Answers  

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