In continues gating – McqOptions

MCQOPTIONS

1.	In continues gating
A.	overlap angle is very high
B.	SCR is heated up
C.	size of the pulse transformer is small
D.	commutation cannot be achieved effectively
Answer» C. size of the pulse transformer is small

Discussion

No Comment Found

Related MCQs

A single-phase voltage controller, using one SCR in anti parallel with a diode, feeds a load R and Vs = 230 V. For a firing angel of 90 for the SCR, the PMMC voltage connected across R would read
High frequency gating uses a
In continues gating
A single phase voltage controller has input of 230 V and a load of 15 resistive. For 6 cycles on and 4 cycles off, determine the average value of SCR current.
A single phase voltage controller has input of 230 V and a load of 15 resistive. For 6 cycles on and 4 cycles off, determine the power delivered to the load.
A single phase voltage controller has input of 230 V and a load of 15 resistive. For 6 cycles on and 4 cycles off, determine the input pf.
A single phase voltage controller has input of 230 V and a load of 15 resistive. For 6 cycles on and 4 cycles off, determine the rms output voltage.