what is Wave Trap? And its Function ? Detail? Where it is Used?




Answers were Sorted based on User's Feedback



what is Wave Trap? And its Function ? Detail? Where it is Used?..

Answer / shailendra

Line trap also is known as Wave trap. What it does is
trapping the high frequency communication signals sent on
the line from the remote substation and diverting them to
the telecom/teleportation panel in the substation control
room (through coupling capacitor and LMU).
This is relevant in Power Line Carrier Communication (PLCC)
systems for communication among various substations without
dependence on the telecom company network. The signals are
primarily teleportation signals and in addition, voice and
data communication signals. Line trap also is known as Wave
trap. What it does is trapping the high frequency
communication signals sent on the line from the remote
substation and diverting them to the telecom/teleportation
panel in the substation control room (through coupling
capacitor and LMU).
This is relevant in Power Line Carrier Communication (PLCC)
systems for communication among various substations without
dependence on the telecom company network. The signals are
primarily teleportation signals and in addition, voice and
data communication signals.

The Line trap offers high impedance to the high frequency
communication signals thus obstructs the flow of these
signals in to the substation busbars. If there were not to
be there, then signal loss is more and communication will
be ineffective/probably impossible.

Is This Answer Correct ?    141 Yes 15 No

what is Wave Trap? And its Function ? Detail? Where it is Used?..

Answer / durga goud.b

generally wave trap installed where the communication
signal passing. for example it used in the sub station for
power line carrier communication (PLCC) and for
comminication purpose PLCC phones are using without
telephone line. The various frequencies are flows through
the power line and at the same time we are transmitting the
communication signals through it. The power frequency and
PLCC frequencies are difference so, at the ending or
receiving station we are using wave trap to arrest the PLCC
signals to flow through the Power equipements.

Is This Answer Correct ?    51 Yes 10 No

what is Wave Trap? And its Function ? Detail? Where it is Used?..

Answer / 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 ?    14 Yes 1 No




what is Wave Trap? And its Function ? Detail? Where it is Used?..

Answer / shivamani

Wave trap is used for trapping the high frequency communication signals sent on the line from the remote substation and diverting to the telecom/tele protection panel in the substation control room (through coupling capacitor and LMU).
This is relevant in Power Line Carrier Communication (PLCC) systems for communication among various substations without dependence on the telecom company network. The signals are primarily tele protection signals and in addition, voice and data communication signals. The Line trap offers high impedance to the high frequency communication signals thus obstructs the flow of these signals in to the substation bus bars.

Is This Answer Correct ?    14 Yes 8 No

what is Wave Trap? And its Function ? Detail? Where it is Used?..

Answer / thanigai1984

wave trapper is used for separating the high frequency from the power lines ... it is used for telecommunication by using plcc.. mostly it will be used in substaions ..

Is This Answer Correct ?    28 Yes 23 No

what is Wave Trap? And its Function ? Detail? Where it is Used?..

Answer / jay barot

wave trap is a plcc communication in power system which
block the outer frequeny of other power station these are
installed in switch yard i was seen wave trap in
gandhinagar thermal power station and i remember it

Is This Answer Correct ?    40 Yes 52 No

Post New Answer



More Electrical Engineering Interview Questions

how does a shunt reactor maintains the bus voltage???

0 Answers  


What are interpoles and commutation windings?Why r they used?

1 Answers  


how to determine capacitor bank capacity of one plant..

2 Answers   Dalkia, SPDC,


What is the range of the stator resistance of 3 phase induction motor?

0 Answers  


How to parallel a alternator without using synchro scope or lamp methods

1 Answers   Ofer,






how we can classify the circuit braker???????

1 Answers  


Transformer rating=> 15/20 MVA.Why there are two raings? What should be the rating of the fuse at the secondary if the voltage level is 13.8KV/4.16KV?

1 Answers   Bhel,


how we calculate full load current of A.C & D.C Motors?

1 Answers  


photo conductive cell

4 Answers   Bhel,


oil cooled transformer

0 Answers   Jindal,


how to introduce yourself

0 Answers  


what is the difference between core & shell type transformer ?& where we use those transformers ?

10 Answers   BNCET,






Categories
  • Civil Engineering Interview Questions Civil Engineering (4635)
  • Mechanical Engineering Interview Questions Mechanical Engineering (3701)
  • Electrical Engineering Interview Questions Electrical Engineering (15764)
  • Electronics Communications Interview Questions Electronics Communications (2636)
  • Chemical Engineering Interview Questions Chemical Engineering (762)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (79)
  • Bio Engineering Interview Questions Bio Engineering (30)
  • Metallurgy Interview Questions Metallurgy (95)
  • Industrial Engineering Interview Questions Industrial Engineering (199)
  • Instrumentation Interview Questions Instrumentation (2879)
  • Automobile Engineering Interview Questions Automobile Engineering (171)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (41)
  • Marine Engineering Interview Questions Marine Engineering (62)
  • Power Plant Engineering Interview Questions Power Plant Engineering (169)
  • Engineering AllOther Interview Questions Engineering AllOther (1334)