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  1. Class A commutation
  2. Class C commutation
  3. Class E commutation
  4.  Class D commutation
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Option 2 : Class C commutation

Class C commutation:

  • There are mainly two techniques for thyristor commutation: Natural and Forced.
  • The Forced commutation technique is further divided into five categories which are Class  A, B, C, D, and E.
  1. Class A: Self or Load Commutation
  2. Class B: Resonant-Pulse Commutation
  3. Class C: Complementary Commutation
  4. Class D: Impulse Commutation
  5. Class E: External Pulse Commutation
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Related Questions

Statement: US President Donald Trump on Thursday cancelled the talks scheduled for June 12 with North Korean leader Kim Jong-un. Which of the following objection(s) might be a probable reason(s) for the above-taken step by US President Donald Trump I. The US President cited North Korea's recent "tremendous anger and open hostility" as the reason for him cancelling the summit. II. Donald Trump did not want to make any relations with North Korea and wants a nuclear war between the two nations and as a result has cancelled the summit. III. In a letter to the North Korean Leader, US president cited that the statements released by the North Korean Vice Minister Choe Son-hui represented "tremendous anger and open hostility", as a reason for cancelling the summit. IV. North Korea is the US’s rival and building any relationship with the Korean nation will bring economic harm to the US and as a result has cancelled the summit.?
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