Answer / lnp

IP stands for Ingress Protection . i.e. Protection against Ingress of solid particles and water. The first Digit indicates solid particles up to 1mm can not enter the equipment and second digit indicates that water sprayed from any directon cannot enter the equipment.

A three phase transformer 460v primary 220v secondary (three phase four wire system.) Why did we get 460 volts across the neutral on the secondary side?

3 Answers  

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Whis machine is having higher efficiency Transformer or Generator

2 Answers  

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What current can be carried by 25 sqmm copper cable safely?

6 Answers   Bharti,

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AT THE TIME OF INSTALLING THE POWER PLANT POWER IS TAKEN FROM NEARBY GRID AND GIVING THE SUPPLY TO THE GENERATOR WHICH ACTS AS MOTOR. WHAT IS THE NEED OF RUNNING THE GENERATOR AS MOTOR?

6 Answers  

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I need the list of Universities who have summer intake for BS degree in Electrical Engineering.?

0 Answers  

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Your B.tech marks is being given in CGPA grade. How is it calculated?

1 Answers  

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why the secondary current transformer cannot left open

1 Answers  

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HT and LT cables can be laid on same cable tray

1 Answers  

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Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

3 Answers   Bhel,

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What is nyquist contour?

0 Answers  

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WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?

0 Answers  

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What is different between Metering CTs and Protection CTs?

4 Answers  

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