Example 10.4 A single phase fully controlled converter bridge is used for electrical braking of a seprately excited de motor. The de motor load is represented by an equivalent circuit as shown in the figure. 230 V, 50 Hz O www 5 2 Assume that the load inductance is sufficient to ensure continous and ripple free load current. The firing angle of the bridge for a load current of 10 A will be (a) 44° (b) 51° (d) 136° (c) 129° 150 V

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Figure-10.8
Example 10.4
A single phase fully controlled converter bridge is used for electrical braking
of a seprately excited dc motor. The dc motor load is represented by an equivalent circuit as shown in
the figure.
230 V,
50 Hz
www
20
150 V
Assume that the load inductance is sufficient to ensure continous and ripple free load current.
The firing angle of the bridge for a load current of 10 A will be
(a) 44°
=
(b) 51°
(c) 129°
(d) 136°
Transcribed Image Text:Figure-10.8 Example 10.4 A single phase fully controlled converter bridge is used for electrical braking of a seprately excited dc motor. The dc motor load is represented by an equivalent circuit as shown in the figure. 230 V, 50 Hz www 20 150 V Assume that the load inductance is sufficient to ensure continous and ripple free load current. The firing angle of the bridge for a load current of 10 A will be (a) 44° = (b) 51° (c) 129° (d) 136°
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