Answer / balu

In hv side only. Because the current flow in hv side low.so we can operate the tappings with less load current

Answer / madhusudhana

It would be placed on the HV windings and is mainly used to
change the voltage level. Both voltages above and below
values can be obtained

IN star -delta motors normally first operated in star mode {absulated given (r-y-b) phases after one miute change in delta mode in this case i am change phase sequience for example R -PHASE TO CHANGE Y-PHASE ;Y-PHASE TO CHANGE R-PHASE SO THIS TIME MOTOR WILL HAPPEN RUNNIG MODE EIGHTER(OR) STOP MODE(TRIP MODE)

6 Answers   MacLellan,

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What is the difference between earthed & unearthed system?

2 Answers   HCL,

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Magnetizing current for induction motor compared to transformer is= A equal B more C less D depends on load

1 Answers  

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The mechanical angle is electrical angle A always less than B greater than or equal to C equal to D less than or eaual to

1 Answers  

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what is the basic need of domestic loads 1- voltage 2- current

0 Answers  

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My system is 22kv/3.3kv transformer. client is asking to use NGR, but as we have dedicated Neutral Earthing systems which has a value less than 1 Ohm. So i want solid comparision. Why i should not use NGR as my system is already protected.Can any one help me to get out of this.how should i reply on basis of some great comparision and calculations. Please help

2 Answers   Ariel,

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11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??

0 Answers  

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what is the difference between id fans and fd fans

12 Answers   Perkins Thermal Systems,

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Electromotive force is provided by:(a) Resistance’s(b) A conducting path(c) An electric current(d) An electrical supply source

2 Answers  

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Interchange 7 and 6 ,÷and× 36×7+4-7×3

1 Answers  

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HOW DO WE COLLECT THE SOLAR ENERGY AND DESCRIBE THE METHODS TO CONVERT THE SOLAR ENERGY INTO ELECTRICAL ENERGY?

1 Answers  

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what is difference between VAT & CST

1 Answers   MIT,

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