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Answer the following questions about a 460-V Δ-connected two-pole 100-hp 60-Hz starting code letter F induction motor:
(a) What is the maximum current starting current that this machine's controller must be designed to handle?
(b) If the controller is designed to switch the stator windings from a Δ connection to a Y connection during starting, what is the maximum starting current that the controller must be designed to handle?
(c) If a 1.25:1 step-down autotransformer starter is used during starting, what is the maximum starting current that will be drawn from the line?
What does "transfer function" of a filter represent What do the Amplitude Ratio (Gain) and Phase Angle represent What are the key differences between a real filter (the RC circuit) and an Ideal Filter (please read LPF Treated as an Ideal Filter)
A circle, centered at the origin with a radius of 2 units, lies in the xy plane. Determine the unit vector in rectangular components that lies in the xy plane, is tangent to the circle at (√3,1,0), and is in the general direction of increasing val..
Assuming the resistance versus temperature function to be linear, determine the expected resistance of the material at 0 degrees celcius( the freezing point of water) and at 100 degrees celcius (the boiling point of water)
The following test data were obtained from short-circuit and open circuit tests of a 5-kVA, 2400-600V, 60Hz transformer. Voc=600V Ioc=3.34A Poc=484W Vsc=76.4V Isc=20.8A Psc=754W
Consider the analog filter H(s)=30000/(s^2+400s+30000) , notice that the filter gain in the passband is unity or 0 dB. You can also use MATLAB command "roots" to check for the poles that are p_1=-100 rad/s, and p_2=-300 rad/s.
a resistor is required for an application that requires its value to be no less than 7.1k ohms and not more than 7.9k ohms. determine the nominal value and the maximum tolerance of the resistor you could use. explain.
Jim starts to work in January - time k=0. His income was zero the previous six months. His income is steady and constant for 0
A three-phase 60-Hz induction motor runs at 715 r/min at no load and at 670 r/min at full load. How many poles does this motor have?
For a symmetric dielectric slab waveguide with the following parameters: n2 (core)=1.7, n1 (cladding) = 1.6 Calculate the range of core thickness such that the waveguide supports TE0/TM0 and TE1/TM1 modes but not TE2 modes.
1.how does intels architecture differ from mips? 2. four processor examples of the above1 3.differences between the
build a circuit for a parking deck where a binary counter counts up when a car comes in and down when one leaves. There can only be a maximum of 40 cars in the parking deck before an LED turns on to notify the parking deck is full.
lets suppose there are two capacitors of same capacitance and they are connected separately to there own battries now we joined both the capacitors togathers and are connectd to the battery with wires of the same potential
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