Thyristor Protection Questions and Answers
Power Electronics Objective Questions & Answers
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False triggering of the SCRs by varying flux & noise is avoided by using
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Over-current protection in SCRs is achieved through the use of
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di/dt protection is provided to the thryistor by
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The effect of over-voltages on SCR are minimized by using
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dv/dt protection is provided to the SCR by
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The thyristor has the following specifications
Vs = 400 V
(di/dt)max = 25 A/μsec
Find the value of L
Vs = 400 V
(di/dt)max = 25 A/μsec
Find the value of L
Correct!
Wrong!
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Figure below shows SCR having dv/dt and di/dt protection, when the switch(shown in green) is closed the current through Rl =
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Thyristors are used in electronic crowbar protection circuits because it possesses
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The local hot spot formation in the cross-section of the SCR is avoided by
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The dv/dt protection is provided in order to
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Thyristor Protection
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