Questions: Transients

 

 

 

 

 

 

 

Question no. 1

Question: Transients in power supply networks usually have a ringing waveform. This is due to:
Possible answers Choose

Answer A is:

Answer B is:

Answer C is:

Answer D is:

Review: Transmission line behaviour, Transmission lines and ringing

Question no. 2

Question: A fast transient burst with risetimes of the order of a few nanoseconds capable of disrupting processor-based equipment is produced by:
Possible answers Choose

Answer A is:

Answer B is:

Answer C is:

Answer D is:

Review: Transient susceptibility

Question no. 3

You want to surge-protect a 24V DC circuit with a maximum voltage capability of 50V from a 500V IEC 61000-4-5 pulse with a source impedance of 2 ohms. Being space-limited, you have a choice of a SMBJ33 zener transient suppressor or a B72520V300K62 33V 1206 MOV transient suppressor, or perhaps both. What do you choose?
Possible answers Choose

Answer A is:

Answer B is:

Answer C is:

Answer D is:

Review: Transient protection

Question no. 4

A lightning surge with a rate of rise of A/μs and a peak value of amps passes along a copper grounding wire of length cm and diameter cm. What peak voltage is dropped across this wire?
Possible answers Choose



Answer A is:

Answer B is:

Answer C is:

Answer D is:

Review: Common impedance coupling

Question no. 5

A periodic train of pulses with a repetition rate of 10 kHz and a pulse width of 3 μs produces a spectrum as shown. What is the frequency spacing of the spectral lines?

Possible answers Choose

Answer A is:

Answer B is:

Answer C is:

Answer D is:

Review: Disturbance sources