What is the technical reason for adopting color coding of
three phase system as RYB.
Answer Posted / madhvaraj
Red, Green and Blue are the three primary colours. These colours are unique and cannot be formed by mixing any other colours. More over they are distinctly visible for identification.As we require a 4th colour for representing neutral, the mixture of red and green, i.e. yellow is taken for representing phase and the green, universally accepted for
safety is representing earth.
| Is This Answer Correct ? | 40 Yes | 8 No |
Post New Answer View All Answers
explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?
in 6.6 kv vaccum circuit breaker vaccum bottole vaccum capacity ????
In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?
please give me solution to rectify the emi(electromagnetic interference)
why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)
how can we calculate the ratio of caustic soda and water in lrs.
WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO
while doing high potential for 11KV 3 core cable how much leakage current will obtain?, what will be acceptance value?
What is the automatic voltage regulator with servomotor?
why does connected a indutor with mnsformeretering core of current transformer ?
What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?
if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side
what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?
What will happen if a dc source is given to a tubelight. Will it work or wont it work....
What is superposition theorem?