Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / henry vakharia
Current transformers are classified in two categories viz.
protection and measuring classes.
In protection relay, the earth fault is detected from the
earthed terminal or say the common terminal shorted
together and then grounded, which makes the relay detect
the earthfault other than its core function of protecting
equipments from high voltage surges.
In measuring relay, the C.T. is grounded to give protection
from the primary high voltages surges.
| Is This Answer Correct ? | 2 Yes | 3 No |
Post New Answer View All Answers
What is difference between Harmonic and Non harmonic Capacitor Bank?
Usage of flywheel diode in relays
how to produsing geretor power
what is tri state logic gate
how hydrogen cooled alternator undergo maintanence ? that is hydrogen when come in contact with air can result into explosions .
oil cooled transformer
How to connect the chemical earthing and complete process tell me plz
which VFD is better ( LT or HT)
what is upper impedance and lower impedance of a distance relay
Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???
How to test the Secure Elite 440 Multi function meter working condition.
What is state space method ? Why its used ? Can it applicable on linear, non-linear, 1st order, higher order, homogeneous, non-homogeneous, open-loop , closed loops , stable & unstable systems ?
Which motor will you choose which can operate in both lagging as well as leading power factors?
I want to know how to calculate the size of electricity cable in building?
Hi 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?
