Wave Trap: Learn the Purpose, Cost, and Lead Time to Procure

wave trap
Wave trap. Image credit: Ohio Edison – Lisbon substation.

Purpose of wave trap

A wave trap is a band-stop filter. They are tuned to block a carrier frequency that is injected into the transmission line. Line tuner, on the other hand, is a band-pass filter. Both work hand-in-hand implementing power line carrier pilot protection.

The GIF below shows how the carrier frequency is contained using wave traps a.k.a. line traps.

Power line carrier - PEguru
Wave traps restricts the carrier frequency to the line it is meant to travel in.
Wavetrap and CCVT for Power Line Carrier implementation
Wavetrap and CCVT for Power Line Carrier implementation. Image credit: First Energy – Penn power.

Cost of wave trap

  • 1200Amp wave trap: ~$10,000
  • 2000Amp wave trap: ~$15,000
  • 3000Amp wave trap: ~$20,000

Lead time to procure wave trap

~20 weeks

Information on cost and lead time is for your general knowledge only. Contact vendor with your equipment specifications for actual figures.


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Wave Trap: Learn the Purpose, Cost, and Lead Time to Procure 1

Substation Major Equipment

It’s only stupid-simple, let’s begin.

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Which combination of devices would you use to implement power line carrier?
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What’s the purpose of a conventional power transformer?
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