Test: Power Electronics- 7 - Electrical Engineering (EE)

A three – phase bridge inverter delivers power to a resistive load from a 450 V dc source. for a star connected load if 10Ω per phase. What is the load power for 180° conduction mode ______________ (in kW)

A 3 ϕ bridge inverter delivers power to a resistive load from a 400 V dc. For a star – connected load of 15 Ω per phase, determine load power and R.M.S value of thyristor current for 120° mode

A 3 phase MOSFET inverter is connected between a balanced star connected resistive load with R_L = 10 Ω and a 250 V dc supply. The inverter frequency is set at 33 Hz, and the switches have 120° conduction periods. Calculate the load power _______ (in kW)

for a single pulse – width modulation of a single phase inverter, The distortion factor for pulse width of π/2 is ___________

For a load of R = 10 Ω and L = 0.03 H, Find the RMS value of the fundamental component of inverter output current in case inverter of part Quasi-square output with 120° pulse width. The source voltage is 230 V and frequency 50 Hz

The inverter is operated at 50 Hz. In 180° square wave mode. Find the peak to peak inductor i₀ in the circuit shown in figure.

For the symmetrical two pulse modulation with pulse width 36°. Find the percentage of 3^rd harmonic in the output voltage  is_______