Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / ahmed rahman
in this connections for over current protection,i have a strange theoretical question.
we all see the common wire of the cts secondaries.
in this wire , the 3 currents of the 3 phase pass through it,
i want to know how each current goes back to it's ct without going to another one however it has a way to pass through !
..the second part of my question,,this earth connection also to the secondaries of the cts, why the current doesn't pass through it?? what prevents it? it acts as a short circuit to the earth !!!
http://www.electrical4u.com/images/backup-protection01.gif
http://www.sayedsaad.com/montada/attachment.php?attachmentid=125929
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Is it possible to connect a safety device in to parallel?
what is the illumination level required for child play area?
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 is meant by rotor?
Explain about p.t?
Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?
what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada
What are the types of instrument transformer?
HOW TO CALCULATE ELECTRICAL, MECHANICAL,& OVERALL EFICIENCY OF GAS ENGINE POWER PLANT
What mean by MLTP
IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?
What is inductance?
what are the applications of PLC?
technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"
what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?
