Question { 10247 }

MCB is used for high rating &MCB is used for lower
rating.What is technical difference between ACB & MCB?

Answer

MCB can carry small currents up to 100A and it is having
only thermal trip protection and breaking capacity of MCB's
are very less the maximum is 10KA, but ACB's can carry
large currents up to 6300A,breaking capacity of ACB's are
high the maximum is 120KA and it is having lot of
protections like under voltahe over voltage short circuit
and earth fault protections, user can adjest the protection
settings, most advanced feature of ACB's are communication
facility, user can monitor and set the parametrs from
remote and also he can download the history of faults with
day and time stamp. So, where ever ever user required high
grade of protection the only choice is ACB's.

Question { 20510 }

how much current we can get from 11kv overhead line ?

Answer

It is depends on the generating station MW capacity

Question { Siemens, 7877 }

what is mean by amf

Answer

AMF means auto mains failure panel, actuvally it is a watch
dog, it always monitor the AC input source, if there is any
failure or any abnormality in the input supply, immediately
it will disconnect the load from main source and change the
load path on generator and also it will send start signal
to gen set. when after resumtions of main AC supply it will
check the healthy ness of the supply if it is healthy then
with little time delay it will change over the load on main
source and also sends stop signal to the genset.

Question { 3359 }

may anybody tell me the names of institute where plc
programing course are conducted

Answer

Siemens offering the training on PLC, you may contact the
below said person for more details
MS.SHWETA SHAH
SIEMENS LTD.
Technical Skills Development Centre (TSDC)
Kalwa Works,
Thane Belapur Road,Thane
EMAIL ID: customer.training.in@siemens.com
PHONE NO: (022) 27623208 /27623566
FAX NO: (022)2762 3738