Question #1 You arrived to the theater and find the following equipment set for the performance of this evening. The circuit of the existing system is the following: Alpha Imax= 30 Amp Breaker Dimmer L1( Vin = 120 VAC L2 L3 The nominal values of the incandescent lamps connected to the dimmer are: L1 (120 V, 2400 W), L2 (120 V 1200 W) and L3 (120 V 1200 W). The dimmer provides an Output Voltage Vout = Vin x sin(alpha/2) meaning when alpha is 0° then Vout is 0 Volt and when alpha is 180° then Vout = Vin = 120 Volts. 1.1) You arrive to the theater and turn on the dimmer to alpha = 100% (meaning 180°). Will the system work properly? Yes/No - Justify your answer with your calculations 1.2) If the system cannot work properly with alpha = 100% = 180°, and you do not have time to make the pertinent changes, please calculate the maximum alpha you can rise the dimmer before the breakers stop the lights to work. Assume that the resistances of the lamps are constant and do not change with the temperature) 1.3) You need to remove lamps to ensure that if you use the dimmer at 100% the breaker will not open the circuit, but also to ensure that the stage receives the maximum of light. Decide which lamp/s you will remove and justify it with your calculations

Q: Current is being discussed. Technician A says that DC current is produced in a sine wave. Technician…

A: Ac current is alternating current which has both positive and negative values. Which means that AC…

Q: (21) A benchtop power supply has its voltage and current settings at 20 Volts, 0.6 Amps. A resistor…

A: The benchtop power supply,The resistor value, The power rating of the resistor,

Q: 12. If overcurrent protection is provided in the transformer of a separately derived system, which…

A: A separately derived system is defined as a premises wiring system in which there is no direct…

Q: 30) A specification requires the PV array for a stand-alone PV system to be sized to produce 1.25…

A:

Q: What is the minimum wire size for a 30 amp circuit?

A: To determine the minimum wire size for a 30 amp circuit. For the minimum wire size refer the NEC…

Q: H.a. What is the efficacy of a 1,000 W PAR-64 halogen lamp with rated lumens of 19,400? A. 303.1 B.…

A: H .a )  Given  Power = 1000 watt Luminous flux = 19400 lumen

Q: Question 27 To turn on all the LEDS with the instruction "OUT AL, 7B", AL should be first set to 7B…

A: Given OUTAL 7B So AL will assign 7B value

Q: A 250 V 35 amp classH fuse will fit into the same fuse holder as a 250 V 60amp class K fuse true or…

A: Given A 250 V 35 amp classH fuse will fit into the same fuse holder as a 250 V 60amp class K fuse…

Q: 2. Explain how an independent source is deactivated if it is (a) a voltage source and (b) if it is a…

A: Deactivation of independent source:

Q: OHMS OHMS 20 10 150 30 200 10 100 CLOBED OPEN 20 10 10 300 25 10 2 OOo AC AMPS A. The reading is VAC…

A: As the range is between 0-300 V and value of the voltage corresponding to 1 point will be given by…

Q: Determine the value of Voltage Vout 3 2 o Vout 6 A 3 2 O A. – 15 Volts O B. – 20 Volts O C.- 21…

A:

Electrical Power Generation

In an electric power generator, one type of energy is converted into electrical energy. Power-generating systems are simply a combination of potential or stored energy that is converted to provide kinetic energy, which, in turn, generates electrical energy for use in engines, lighting, heating, and other benefits of modern life.