Answer / h r jadhav

when line voltage 480 is used across the primary of step
down trf having secondary is 230 volts then 1 phase motor
will load same current to lv side however it will load the
primary with respect to tf ratio. so if u have tf rated 10
amp for primary it is welland good.and if it is for
secondary it is well.

In my home i am getting too much electricity bill (more than 4000) but I am very much sure that we are not consuming that much. How i can check this ?

6 Answers  

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Why no-load primary current is very small as compared to full load current in transformer (as 1% of full load current?

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what is the role and fuction of automatic transfer switch in rotary ups

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Which factor decide the colour of the light emitted from a Led?

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Define resonant peak?

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why humming sound occured in h HT transmission line

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some times voltage does not built in small generators why ?

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If we tell 60 sq.mm. 3-1/2 core cable,then what does it mean ? 1) Each core section in the whole cable is of 60 sq. mm. 2) The whole cable is of 60 sq. mm. which is sub-divided into 3-1/2 core.

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What is the acceptable resistance range of UPS battery

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If we increase frequency in transmission line in lieu of voltage what will happen?

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What is the major differences between RCCB & ELCB? If we use ELCB of less sensitivity why does it trip often and can we control it from tripping?

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It is being often experienced that due to single phasing fault of any source transmission line of any closed loop synchronized circuit all the power transformers with primary stared trips but the power transformer with primary delta wont, why ?

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