Draw a 5-stage Marx impulse generator circuit showing the voltages of all points. Also, show the capacitor’s voltages and their polarities if the generator is supplied by a DC voltage source of 127 kV. b. Explain how it works. c. What is the output testing voltage if each stage has a voltage drop of 7 kV?
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Q/
a. Draw a 5-stage Marx impulse generator circuit showing the voltages of all points. Also, show the capacitor’s voltages and their polarities if the generator is supplied by a DC voltage source of 127 kV.
b. Explain how it works.
c. What is the output testing voltage if each stage has a voltage drop of 7 kV?
d. In the lab, if the first spark gap is not small enough to start the avalanche (the breakdown of all gaps), and you cannot make it smaller, what could you do to fix this problem?
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- A source supplies power to the following three loads connected in parallel: (1) a lighting load drawing 10kW. (2) an induction motor drawing 10kVA at 0.90 power factor lagging, and (3) a synchronous motor operating at 10hp,85 effIciency and 0.95 power factor leading (1hp=0.746kW). Determine the real, reactive, and apparent power delivered by the source. Also, draw the source power triangle.Q/ A three stage Cockroft-Walton generator is supplied by 212.133 V, 50 Hz source via a transformer with turns ratio equals to 2/800. All capacitors have a value of (0.8 μF). The protection current equals to 15 mA. Find the following: a. Find the output peak voltage that is used for testing without considering the voltage drop. b. Find the output peak voltage that is used for testing with considering the voltage drop. c. What is the ripple voltage? d. If the lowest capacitor is increased to twice its value, what is the output peak voltage that is used for testing with considering the voltage drop. e. Comparing the results of ( b ) and ( d ) above , do you recommend doubling the value of the lowest capacitor or not? f. According to the circuit values, is the 3 stages represents the optimum number of stages for this generator?Q2: a. Draw a 5-stage Marx impulse generator circuit showing the voltages of all points. Also, show the capacitor's voltages and their polarities if the generator is supplied by a DC voltage source of 127 kv. b. Explain how it works. c. What is the output testing voltage if each stage has a voltage drop of 7 kV? d. In the lab, if the first spark gap is not small enough to start the avalanche (the breakdown of all gaps), and you cannot make it smaller, what could you do to fix this problem?
- A three stage Cockroft-Walton generator is supplied by 212.133 V, 50 Hz source via a transformer with turns ratio equals to 2/800. All capacitors have a value of (0.8 µF). The protection current equals to 15 mA. Find the following: a. Find the output peak voltage that is used for testing without considering the voltage drop. b. Find the output peak voltage that is used for testing with considering the voltage drop. e. What is the ripple voltage? d. If the lowest capacitor is increased to twice its value, what is the output peak voltage that is used for testing with considering the voltage drop. e. Comparing the results of (b) and (d) above, do you recommend doubling the value of the lowest capacitor or not? f. According to the circuit values, is the 3 stages represents the optimum number of stages for this generator?1-Alternators can be overloaded by 10 percentage for 10-15 minutes, this a. Steady state voltage stability will get affected b. may reduce the stability limit c. may disturb Nose point d. may lose Angular stability 2-Often, the network is referred as an infinite bus when a change in input mechanical power or in field excitation to the unit does not cause an appreciable change in a. system frequency or terminal voltage b. system frequency alone c. system frequency and terminal voltage d. Total production costPlease solve Last time Not give details solution. Give good ans i give upvote. A 3-phase alternator has the line voltage of 11 kV. The generator is connected to a circuit breaker. The inductive reactance upto the circuit breaker is 50/phase. The distributed capacitance upto circuit breaker between phase and neutral is 0.001 µF Determine peak restriking voltage across the CB, frequency of restriking voltage transients average rate of restriking voltage upto peak restriking voltage, maximum RRRV.
- Which of the information given about the governer (speed regulator) element in the power plant is correct, A) The task is to keep the active power value constant. B) The task is to keep the voltage amplitude constant. C) Its task is to try to keep the excitation current constant. D) Its task is to try to keep the reactive power value constant. E) Its task is to try to keep the frequency value constant.A compound (short-shunt) generator has 50kW, 250V, Ra=0.06Ω and Rf=125Ω. Calculate the induced emf (armature) at the charge rate and the terminal voltage. Take 2V as the drop in voltage due to the brushes.Two alternators A and B are in parallel and supplying a 600-V,60 Hz bus load consisting of a 270 kVA unity power factor load a group of induction motors totaling 420 kVA at 89.4 percent power factor and a synchronous motor that draws 300kVA at 92.3 percent power factor leading. If the machine A is carrying 60 percent of the total active power load at a power factor of 70.4 percent lagging, determine the active and reactive components supplied by machine B.
- Q4: A 50 Hz, 11KV, 3-ph, alternator with earthed neutral has a reactance of 5 Ω\ ph and is connected to bus bar through a C.B. The distributed capacitance up to C.B between phase and neutral is 0.01μF, determine: 1-the recovery voltage across the contacts of the breaker, 2-the frequency of oscillation, 3- The restriking voltage across the contacts of the breaker, 4-the average rate of rise of restriking voltage up to the first peak, 5- the time to reach the peak restriking voltage, 6- the value of resistance to be used across the contacts of C.B. to eliminate the restriking voltage, and 7- the value of inductance and capacitance of this systemA critical factor in the section of a generation of a generator for a particular application is that ______? A. It must fit on the applicable concrete pans and match the décor of the commercial building B. It must have the same voltage output as the normal building power supply C. The fuel supply must be available only 50% of allowable time D. The repair parts must be manufactured and conform to the ISO 9001 standards.For a single phase full wave AC controller, the input rms voltage is V_{s} = 120V 60 Hz load is L = 6.5mH and R = 2.5 2. The delay angles of thyristors are equale a_{1} = a_{2} = pi / 2 Determine (a) the conduction angle & of the thyristor, which conduct positive half cycle (b) the rms output voltage V_{0} (c) the rms thyristor current I_{R} (d) the output current.