0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why secondary winding and metal core earthed at one point?
generally tertiary wndng is delta .if one point of this delta is earthed(through a CT) then it is not a earth fault. thansformer will operate normally. now if a second point(or any point on the delta winding) is earthed (earth fault) then the fault current will be sensed by the said ct.and Transf will tripped. Avradeep Das. email id: avra.wbsetcl@gmail.com
Are power cable armour to be earthed at both ends or at one end only?
One end only. Single point grounding is a rule of thumb. The reason for this is when you run cables together, including a shield or ground cable, the cables with power flowing in them will induce a voltage on the other cables. If two grounds are placed on a shield or ground cable, unwanted current will flow in a loop through the cable.
Where does the supply authorities cable enter a building?
find your electric Meter and you've found the point of entry, or depending on where the electric meter is in the building, you can trace the cable back from the meter to the point of entry.
Why star point of star connected motor is not grounded?
Another AnswerA motor represents a balanced three-phase load and, therefore, there is no neutral current, so there is no requirement for a neutral connection. Regulations prevent an earth being used as return, so the star point shouldn't be earthed either.
Why zero sequence current cannot flow through a star connected machine unless the neutral is grounded?
If the neutral point is not earthed than the zero sequence current will not have any return path.It will be an open circuit for the zero sequence circuit.
What does cpe stand for when using transformers?
Centre point earthed
Why secondary winding and metal core earthed at one point?
generally tertiary wndng is delta .if one point of this delta is earthed(through a CT) then it is not a earth fault. thansformer will operate normally. now if a second point(or any point on the delta winding) is earthed (earth fault) then the fault current will be sensed by the said ct.and Transf will tripped. Avradeep Das. email id: avra.wbsetcl@gmail.com
Are power cable armour to be earthed at both ends or at one end only?
One end only. Single point grounding is a rule of thumb. The reason for this is when you run cables together, including a shield or ground cable, the cables with power flowing in them will induce a voltage on the other cables. If two grounds are placed on a shield or ground cable, unwanted current will flow in a loop through the cable.
What is the star point of a CT?
The term, 'star point', refers to the common point of connection for the three windings of a star-connected (wye-connected) transformer connection. The star point is usually earthed (grounded) and provides the neutral point of the connection.
What means hardware?
Attaching a cable from point to point. Such as connecting a cable from the Cable t.v. outlet in the wall to the back of your t.v. Not wireless.
How do you adjust the emergency brake cable on a 97 F150?
Adjuster should be under the vehicle at the junction of the 3 cables Set parking brake to "3" clicks and tighten cable - vehicle should hold at this point
Why it is necessary to earth the star point of three phase circuit?
The star or neutral point is earthed at the supply transformer to prevent the system building up a static electric charge in dry weather.
What are some of indium important uses?
If I am correct. Indium is typically used in phone screens. computer screens and to make low melting point alloys Hope that helps
What are strengths of coax cable?
Coaxial cable is the best/lowest cost way to move a RF signal from point A to point B.
Which TV jack in your house should be used by your cable modem?
Yes. "You want to use the jack that connects directly to the point where the TV cable comes into you home with no splitters between this jack and the entrance point. Later, if your cable modem connection is constantly going down, you might consider that you've chosen the wrong jack for the connection because an inline splitter can degrade the connection. The cable company that installed the jacks should be able to tell you which jack is best to use for the cable modem." Source: CompTIA A+ Guide to Managing & Maintaining Your PC, Sixth Edition, Jean Andrews, P. 934
What is a VTP cable?
VTP is Vertical Trading Point
What is the recommended cable length from the modem to the router or access point for wireless Internet connection?
what is submarine cable
