Electronics and Communication Engineering - Power Electronics

41. 

A 3 phase bridge inverter is fed by 400 V battery. The load is star connected and has a resistance of 10 Ω per phase. The peak value of thyristor current is

A.
B.
C.
D.

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

42. 

The main utility of SCR is due to

A. gate triggering
B. high temperature triggering
C. triggering
D. high breakdown voltage

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

43. 

In a single phase full wave ac regulator the firing angles during both half cycles are equal.

A. True
B. False

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

44. 

In a 3 phase full wave regulator feeding a star connected resistance load, firing angle is 75°. Then the number of thyristors conducting at one time is

A. 1
B. 2
C. 3
D. 4

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

45. 

The symbol in figure is for

A. SUS
B. SBS
C. Shockley diode
D. UJT

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.