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A base load station having a capacity of 18 MW and a standby station having a capacity of 20 MW share a common load.
Find the annual load factors and plant capacity factors of two power stations from the following data :
•Annual standby station output = 7.35 x 106 kWh•Annual base load station output = 101.35 x 106 kWh•Peak load on standby station =12 MW•Hours of use by standby station/year = 2190 hours
an adiabatic throttling process for R-134a takes saturated liquid at 800 kPa entering, and drops the pressure to 280 kPa (constant specific enthalpy). Determine the quality exiting and the specific entropy change for the throttling process.
A 22KVA, 2300/230 VAC, 60HZ transformer is tested with a short circuit test. The measured data are as follows: Psc=280W, Vsc=80VAC and Isc=9.5 A 1. Find the transformer turns ratio of the transformer
Voltage in complex forms, An engine consumes 10kw of power and 4kvar reactive power at a current of (6+j4)Amps
For a resistor, what resistance corresponds to a short circuit? For an uncharged capacitor, what value of capacitance corresponds to a short circuit? Explain your answers. Repeat for an open circuit.
noncausal, linear, and time-invariant. Determine the impulse response for the system and verify that an LTI system defined by the impulse response you determined satisfies the difference equation.
What is an ideal diode? Draw its volt ampere characteristic. After solving a circuit with ideal diodes, what check is necessary for diodes initially assumed to be on? Off?
A cast steel magnetic circuit with N = 2500 turns, I = 200 mA, and a cross sectional area of 0.02 m2 has an air gap of 0.00254 m. Assuming 90% of the mmf appears across the gap, estimate the flux in the core.
If one of the resistors in a parallel circuit were shorted, what would you expect to see happen and could a shorted component in a parallel circuit cause an open to occur elsewhere.
Determine: (a) the resistance of the coil,(b) the current flowing in the circuit one second after the shorting link has been placed in the circuit, and (c) the time taken for the current to fall to 10% of its initial value.
it is required to establisg a chart for count of nonconformities for a manufacturing process. if 25 units are to be inspected and the total number of the count of nonconformities from all the units is 141, determine the central line and control li..
Consider a network with a driving-impedance Z. (1) Find expression for P and Q. (2) Find p(t) in terms of P and Q. (3) Suppose that the network is a series RLC. Interpret the result in part (2).
An AC induction motor is rated at 1750 rpm with a line frequency of 60Hz. If the motor is operated on a 50 Hz line, what will be its approximate speed in RPM?
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