A freewheeling diode placed across a RL load provides

A single phase full converter has discontinues load current. The converter is supplying a dc shunt motor (R-L-E) load. When the current falls to zero the output voltage is

In a semi-converter with RLE load during the freewheeling period, the energy is

A single-phase symmetrical semi-converter employs

A symmetrical semi-converter will have one SCR and one diode in each leg. Two legs connected in parallel with each other having a symmetrical configuration.

A single-phase semi-converter is connected to a 230 V source and is feeding a load R = 10 Ω in series with a large inductance that makes the load current ripple free. Find the average output current for α = 45°.

A single-phase semi-converter is having continuous conduction, as such each thyristor will conduct for an angle of

Consider the following statements regarding phase controlled converters: i) They do not provide smooth variation of output voltage. ii) They inject harmonics into the power system. iii) They draw non-unity power factor current for finite firing angles. Which of the above statements are correct?

Consider the following statement: The overlap angle of a phase controlled converter will increase ___________ i) if the firing angle is increased ii) if the supply frequency is increased ii) if the supply voltage magnitude is lowered Of these statements

A three-phase, three-pulse, M-3 type controlled converter uses ____________ number of SCRs.