step by step solution please thank you in advance Q1. The single-phase fully-controlled rectifier shown in...
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Single-Phase Controlled Rectifier Exercise Derive the expressions of the average load voltage and current in single-phase half-wave controlled rectifiers and resistive load. Draw the waveforms of supply voltage. output voltage, output current, thyristor voltage and thyristor current Exercise In a single-phase half-wave controlled rectifier and resistive kad, it is desired to get an average load voltage of 80 V. Determine the firing angle if the ac supply voltage is 230 V. If the load...
A 3-j semi-controlled bridge rectifier is fed from a delta-star transformer 66 kVA, 60 Hz, 13800 V/? (the secondary voltage is unknown). The load of the rectifier is highly inductive. The following measurements at a specified firing angle have been recorded: Ith RMS 70.71 A I line RMS (transformer secondary) 76.40 A Draw the complete circuit diagram and calculate; i. Load current Io. ii. Firing angle α. iii. Transformer secondary line voltage (RMS). iiii. Average output voltage (at the calculated...
A 3-j semi-controlled bridge rectifier is fed from a delta-star transformer 66 kVA, 60 Hz, 13800 V/? (the secondary voltage is unknown). The load of the rectifier is highly inductive. The following measurements at a specified firing angle have been recorded: Ith RMS 70.71 A I line RMS (transformer secondary) 76.40 A Draw the complete circuit diagram and calculate; i. Load current Io. ii. Firing angle α. iii. Transformer secondary line voltage (RMS). iiii. Average output voltage (at the calculated...
can you calculate and explain why? thanks
A single-phase thyristor rectifier as 50 Hz source. The rectifier delivers a DC voltage of 150 V to a highly inductive depicted in Figure 1 is fed from a 220 V rms, 1. load with a resistive value of 10 Q. SCR, T SCR2 + is Vo SCR3 SCR T Figure 1 (a) for a delay angle component indicating its phase shift with respect to the input voltage v, Sketch the net rectifier...
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Q4) For the three phase double-star controlled rectifier circuit with resistive load and firing angle a < 60 a) Sketch the output voltage wavform. b) Drive the expression for the rms load volage in terms of Vn and a (9 marks) ALinaMe
Q4) For the three phase double-star controlled rectifier circuit with resistive load and firing angle a
A single phase half wave controlled rectifier shown below
operates from ideal sinusoidal source with vi =325sinwt at 50Hz. If
the load is purely resistive, and at a certain α, the output dc
voltage is Vdc =95V, and the average
valu of the load current is 2.2A. It is required to calculate the
following:
a) The triggering angle α
b) Load resistance
c) r.m.s load current
d) dc power
is 다. Firing Circuit
44! 15 marks] For a 380 V, 50 Hz, three-phase Half-Wave Controlled rectifier with highly inductive load. Calculate average voltage for firing angle 90°. Is the current continuous or discontinuous and why? what w te pall level wllige
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Q2. For the single-phase voltage controller of Fig. 2, the source is 120 Vrms at 60 Hz, andthe load is a series Rしcombination with R-20 Ω and L-50 mH. The delay angle α is 90°. Determine (a) an expression for load current for the first half-period, b) the rms loadcurrent, (c) the rms SCR current, (d) the average SCR current, (e) the power delivered tothe load, and (f)...
A Single-phase halfwave controlled rectifier is used for a heating system whose rated power is 15kW at 220V. The SCR is connected to a 220 VAC system. 1. Determine the rated equivalent resistance of the heater2. Determine the maximum that the rectifier can provide to the heater3. When the SCR is fired at angle of p/3, determinea. Waveform of the voltages across the load, the SCRb. Waveform of the currents flow through the SCR, drawn by the load and supplied...
2. Figure 2 shows a 6-pulse thyristor rectifier feeding a DC static load an operating at steady-state. The ac input power supply is a symmetric set of three-phase voltages forming a direct sequence, having rms line-to-line voltage of Vuns equal to 415 V and angular frequency ω equal to 100π rad/s. The load is sufficiently inductive to smooth out the load current i(t), i.e. i 1, where I is a constant. a. Derive the mathematical expression of the average DC...