Interested to Buy Any Domain ? << Click Here >> for more details...
What is the function of Lightning Arrester & Wavetrap in
Power system ??
- 18 Answers
- 81436 Views
- ABB, Bhel, Energy Infratech, Infosys, NTPC, I also Faced
- E-Mail Answers
Answer Posted / jeff brown
A line trap is a parallel L/C circuit that creates a low impedance at power frequency(60hz) and a high impedance at your desired carrier frequency. You will have a trap at each end of the line that utilizes a pilot scheme such as DCUB scheme. On a simple scheme, you will usually only couple your carrier signal to a single phase of your three phase system. If this phase was to become faulted to ground behind your line, say on your bus, the traps high impedance to your frequency would keep your carrier frequency from following the fault current to ground and essentially "trapping" your frequency on the line ensuring your pilot scheme operates correctly.
There is a surge arrestor located internally to the trap that passes very high current faults on the system to protect the C of the L/C. Circuit.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is advantages of VSCF wind electrical system?
Should power factor be low or high?
explain remenance . differentiate high remenance type ct & low remenance type ct
what is LSR?
Z transform is use when system is not a) converges b) diverges
how can we select the appropriate VCB ?
What is the most essential condition for the voltage build up for a d.c. Shunt generator?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
what does a string of resistors in a series will do?
How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?
why we r not earthed Control cable of C.T. terminals
what are the sample questions asking to the test cunducting for electrical superwising lisence test?
why co incidence factor considered in transformer sizing?
How does an oscillator differ from an amplifier?
what a function diesel generetaor turbo charger & turbo charger is more heated explain reason ?
