RMS and Line-to-Line Voltages

Related BrainMass Solutions

• Induction motor typical calculation.

  RMS values RMS values usually refer to both fundamental and harmonic components for the voltages or currents.

• Transformer in Circuit - Faraday`s Law

  A sinusoidal voltage of 10 V rms is applied at terminals 11'. What is I_2? (See attached file for full problem description) According to Faraday law, the ratio of the turns is also the ratio of the voltages.

• RCL series circuit

  d) What capacitance would you add, and how, to make the power factor 1? Please see the attached file. When an RCL series circuit is connected to a 120 V rms 60 Hz line, the rms current is 11.0 A and the current leads the emf by .

• Reducing power losses in transmission of alternating currents.

  The same equations will also holds with the rms (root mean square) values of the current and voltages and the impedance for alternating currents with a power factor cos , where  is the phase difference between the current and voltage.

• Power supplies regulated & unregulated problems and solutions

  Flexibility in output voltages Since the input voltage is chopped into an AC waveform and placed into a magnetic element, additional windings can be added to provide for more than one output voltage.

• series RLC circuit

  It investigates a series RLC circuit, such as its resonance angular frequency, phasor diagram, and rms current. The solution is detailed and well presented.

• Regarding the approach to induction motor operation and how to solve the very simple problem being known some basic equations of power balance such as input power equation of IM (P=[(EV/X)sin(Angle E- Angle V)]

  The machine is connected to a network with a terminal voltage of 11 kV rms. The phase angle difference between the internal and external voltages is 30 degrees (internal minus external). (a) Is this machine generating or consuming real power?

• Analysis of AM circuit

  The voltages for sources V1 and V2 have been measured with a multi-meter and are 2 and 3 rms V respectively. The carrier and message are both sinusoidal. a. What type of modulation is he trying to perform? Motivate your answer. b.

• Arc Waveform & AC Power

  An ac waveform is said to complete one cycle when the angle changes from 0 degree to 360 degree. We denote the peak voltages by Vp. There are two peaks in the figure, one at 90 degree and the other at 270 degree (though it is negative).