Advantages and Disadvantages of GTO

Advantages of GTO over Thyristor

  1. Commutation circuit is not needed
  2. Fast switching speed
  3. More di/dt at turn on
  4. Higher efficiency because losses in commutation circuit is eliminated
  5. Circuits using GTO  are compact
  6. Lesser acoustical and electromagnetic noise due to elimination of choke of commutation

Disadvantages of GTO

  1. Higher latching and holding current
  2. Higher on state voltage drop and power losses
  3. Higher gate current
  4. Higher gate circuit losses
  5. Lower reverse voltage blocking capacity

Inspite of all above disadvantages,GTOs are being used in a variety of application such as variable frequency inverter circuits,electric traction and steel mills.Rating available are upto about 6kV and 6kA.

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Written by John on October 18th, 2008 with 4 comments.
Read more articles on Gate Turn Off Thyristor and Power Electronics.

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4 comments

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Get your own gravatar by visiting gravatar.com Bharat Panchal
#1. December 19th, 2009, at 10:51 PM.

list out the advantages of transistored inverter over thyristor inverter?

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#2. August 1st, 2011, at 6:09 PM.

Hey %author.

Thanks for the info you’ve put here, really good advice.

Cheers

Phil

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#3. August 3rd, 2011, at 6:25 AM.

Hi friend,

Thanks for a interesting post.

Keep these coming as the quality is awesome

Adios

Julie

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#4. August 4th, 2011, at 11:38 PM.

Greetings! I know this is kinda off topic however , I’d figured I’d ask. Would you be interested in exchanging links or maybe guest writing a blog post or vice-versa? My website covers a lot of the same topics as yours and I feel we could greatly benefit from each other. If you’re interested feel free to shoot me an email. I look forward to hearing from you! Great blog by the way!

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