1
GATE EE 2012
+2
-0.6
In the $$3$$-phase inverter circuit shown, the load is balanced and the gating scheme is $${180^ \circ }$$ -conduction mode. All the switching devices are ideal.

If the $$dc$$ bus voltage $${V_d} = 300\,\,V,$$ the power consumed by $$3$$-phase load is

A
$$1.5$$ $$kW$$
B
$$2.0$$ $$kW$$
C
$$2.5$$ $$kW$$
D
$$3.0$$ $$kW$$
2
GATE EE 2012
+2
-0.6
In the $$3$$-phase inverter circuit shown, the load is balanced and the gating scheme is $${180^ \circ }$$ -conduction mode. All the switching devices are ideal.

The $$rms$$ value of load phase voltage is

A
$$106.1$$ $$V$$
B
$$141.4$$ $$V$$
C
$$212.2$$ $$V$$
D
$$282.8$$ $$V$$
3
GATE EE 2009
+2
-0.6
The Current Source Inverter shown in Figure is operated by alternately turning on thyristor pairs $$\left( {{T_1},\,\,{T_2}} \right)$$ and $$\left( {{T_3},\,\,{T_4}} \right).$$ If the load is purely resistive, the theoretical maximum output frequency obtainable will be
A
$$125$$ $$kHz$$
B
$$250$$ $$kHz$$
C
$$500$$ $$kHz$$
D
$$50$$ $$kHz$$
4
GATE EE 2008
+2
-0.6
A single phase voltage source inverter is feeding a purely inductive load as shown in the figure.

The inverter is operated at $$50$$ $$Hz$$ in $${180^0}$$ square wave mode. Assume that the load current does not have any $$dc$$ component. The peak value of the inductor current $${i_0}$$ will be

A
$$6.37$$ $$A$$
B
$$10$$ $$A$$
C
$$20$$ $$A$$
D
$$40$$ $$A$$
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