Just a silly question but just to make my curious mind bac
to normal - Why was not 67 and 67N
relays built into a single relay as i have noticed that the
R,Y,B CT wiring end up into the 67 relay
while the common of the R,Y,B CT wiring end up into the 67N
relay. Then it was better if a single relay was manufactured
just like the distance relay (21). Another question i would
like to ask is - how do we know where the 67 and 67 N
relay has to be placed.why is it not placed at the
transformer bay? In the substaion that i am working -i have
noticed that it is placed between a breaker and
a common double bus bar and this line bay is connected to
another substation at a remote place which is furthur
connected to a load.
B
U
S______CT for 67 & 67N ______Breaker _____ remot s/s.
B
A
R
in 50 mw generator if field is open in full load running condition what happen and for protection which relay used?
why in dc generator field rheostate kept in maximum position?
In synchronous generators field is rotor and armature is stator.Can we take the output at the rotor in case of synchronous generator by the dc excitation on the stator?
In response to Mr Bikas. If fault current is 52 kA then what will be the CT specification
WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .
What do you meant by slip power recovery?
what is per unit calculation?looking for simple and strong explanation thk u
i am iti student i have project to do. that IS 100MW 220\33KV SUBSTATION I WANT TO KNOW HOW TO START, LIKE CALCULATION, WHAT RATING OF CT,CVT, PT, ISOLATOR LIGHTING ARRESTER WAVE TRAP CIRCUIT BREAKER IN 22OKV SIDE, ALSO TO WARDS 33KV SIDE PLS HELP ME WITH THIS, THIS MY LIFE NOW, I KNOW AUTOCAD, I LIKE TO KNOW HOW TO CALCULATE ALL THE THINGS
what is dead tank CT AND what is live tank CT
how to modify DOL control panel into Delta Y connection?
Why the design of electromechanical energy conversion machines is based on the medium of conversion as megnetic field not as electric field?
Is it true that in the 3 phase transformer, the limbs of the core are at 45 dgrees to each other. if true, why?