How many types oil using in transformer ?
How many letars using in transformer..?
how flow current in 220 kv line to line
as a electrical student why should i hire you?
What are the classifications of heating element?
what is mean by PIR in circuitbreaker and give me detail of
what is the transiant condition in alternator? and how it
can be prevanted?
what is buffer resistance starter.?.What is the working principle and where it is used..?
is it necessary to earth the rmu before cutting off the
transformer winding?if yes why?
When we use air circuit breaker, it has O/L
protection ,time delay SC protection, Instataneous SC
protection & ground fault protection. They all have some
setting range. But what is the suitable/allowable setting
for the above protection which will be safe for the
For example-O/L protection setting have a range of
Time delay SC protection have a range of
Time delay setting is 0.02,0.1,0.2,0.3,0.4
Instataneous setting is fixed to 20xIn
Gound fault setting is given 100A,300A,600A,900A,1200A
This setting are for 2500A ACB.
So what will be the basic allowable setting for the above
protection? is there any formulae to calculate this<
can anyone please help me to find the rupturing or breaking
capacity in KA of circuit breaker (MCCB,VCB,ACB etc) of HT
and LT side of a distribution transformer...please help with
detailed step by step answer...thank you
Suppose we have a wye/wye transformer which is grounded at
both sides,in this situation, do we have ay ground
transformer? in other words, ground transformer can do any
thing more (while we have nuetral wire in both sides)? As
the last question, what about 3rd harmonic? we have two
choices: first using wye/delta transformer + ground
transformer and second using wye/wye earthed connection.in
the former choice, we dont have 3rd harmoonic at the
secondary side but what about Yn/yn conection? do we suffer
from 3rd harmonic in the Yn/yn connection?
What is a fuse? How does it work? What are materials used?
what are the functions & ratings of panels mentioned below:
1. Main LT Panel(MLTP)
2. Motor Control Centre(MCC)
why incomer bay is required before transformer bay if there
are more than 1 nos. of transformer bay.