sigal phase supply is 230 v ac
two phase supply is 415 v ac
why three phase supply is 415 v ac why not 690 v ac
Answer Posted / prmeghwanshi
Because you measure voltage between onlt two point like RYB
when you connect N to any other RYB then voltage is 240V
(App.) this is called single phase.
when you connect one point into RYB(R) and other is also RYB
(other than R) is 440V this two phash. when you use three
phase voltage is measure in only two point like R to B R to
Y so it is also 440V. you can't measure voltage betwween
three point.
Is This Answer Correct ? | 15 Yes | 4 No |
Post New Answer View All Answers
When MICC cables used ?
How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.
What are the three major categories of error?
why we use 630mm single core cable for transformer secondary side and why two neutral cable
Pleae send me last 5 years of Question book about RRB chennai.
Dear all, I'm manikandan I have done by DIPLOMA EEE from 2011 , I have 5 years of experience from Power plant instrumentation field , which one field is give long life & which one field is best ,I confused a lot and also I'm studying AMIE, can I choose which department from Section B examination? pls tell me
There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2
Mention the difference between Analogue and Digital circuit?
How do you compute voltage drop and cable size over distance?
How to decide and select the different earthing wire size for the different types of earthing
How does the slip regulator works as a startor
what can be the causes of capacitor start motor having a higher current that its actual
During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP
how indusrial diesel generator work
neutral earth resistance testing is it possible for transformer while in load condition