what is Wave Trap? And its Function ? Detail? Where it is Used?
- 7 Answers
- 78863 Views
- I also Faced
- E-Mail Answers
Answer Posted / tarun aggarwal ymca
As communication waves are high frequency (and not power frequency) they will act as harmonics towards electrical equipment's like transformer,breaker etc...,so in order to protect them we should connect at entrance (after the CVT) so that wave trap will trap the communication waves.
Or
Signals from main centers far away from the substations are sent which are captured by the routers placed in substations, these are high frequency signals much higher above the power frequency(in kHz), these signals are then trapped by a coupling circuit and are routed to the fields via underground cables.
They work at higher frequencies and allows power frequency signals to pass through and traps the communication signals and hence are named wave traps. The communication signals captured and decoded contain signals like trip the CB, or change the tap changer or something of the kind.
| Is This Answer Correct ? | 15 Yes | 1 No |
Post New Answer View All Answers
WHAT IS THE PARTIAL DISCHARGE TEST?
What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?
how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?
How to test IR testing & magnetic balance test
HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.
What do you mean by Frame 5 Gas Turbine as well as Mark II.
Plz tell me how we can find that particular company has vacancy or not
I HAVE A INCOMING 100A MCCB TPN 25KA, CABLE LENGHT OF 80M 70MM CABLE SIZE FROM MAIN SUBBOARD TO NEW DB.BASE ON THE FAULT LEVEL SETTING OF 45KA.I WOULD LIKE TO FIND OUT 25KA ENOUGH KA. APPRECIATE IF SOMEBODY CAN ASSIST ME WITH FORMULA FOR THIS. FRM: JEFF
IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?
armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?
Why is water motor not taking the pressure? what is the problem?
What is the feedback in the control system?
What are dcs and plc?
what is meant by residual over voltage & residual earth fault ?
hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx
