There is 3phase power cable from 1 point to the other point
which is 100m away. Two point equipped with power meter and
recorded 1st point is 205kW while the 2nd is 202kW and each
phase average carry 400amps. To calculate the resistance of
the 3phase power cable, is the formula using will be P=I2R?
When we change the tap position of 10MVA transformer it
suddenly tripped with Out of step indication and also with
Static differential relay indication, Transformer Bucholz
relay indn and Low oil level indication. Before 1 week the
same problem occured by changing the tap position. but at
that time only oltc bucholz relay activated. After testing
the TxR Relay team & PET team cant find any solid reason.
The values are ok also. So plz answer wat's the reason for
this incident? anybody plz help.
I am getting above 60 V as open delta voltage against single
phase unit ICT at tertiary delta formed and ICT getting
trippped on NDR. ICT tested and found in order. PTs provided
on tertiary are tested and in order. what may be the reason?
what i the full form of ABS 111 in transformer.
how can i reduce sparking without stepdowning the voltage
we know the value of the power factor is 0.8, we know the
power factor is not depends upon the load ,then why we cant
design the power factor in transformer ?
how to deside the capacity of chock for drive?
in three 3.5 core aluminium ug cable. one cable is used for
one phase by shrting R,Y and B wires and other 2 cables
used for Y and b phases. balace 3 neutral wires are made
common and connected to load. suddenly neutral current was
more than line current what is the reason behind this?
if any body have question paper of railway (section
engineering),then plz send me .i will thank of him/her.
How we calculate the current carrying capacity of H.T. cabel?
Can anyone explain me about the RLC based Impulse high
voltage generator and how to and operation of Series
resonant High voltage reactor...?
how load of a turbo generator can be increased
why starting current is high and resistance is almost 0 during the starting of motor dc motor...?
can we ran equipment up to 10kw between phase to grounding/
earthing. beside above can we use grounding instead of
how to carried out DAR test in 11 KV Alternator ?
EHV current carrying parts need to have smooth finish,then
how can a 245kv GIS with emery finish can run so long?
boiler is running in rankine cycle and deisel generator