4.1Calculate the energy capacity and the capacitance of a super capacitor consisting of X metal electrodes coated with a high surface area of Ym² type of activated carbon, separated by an extremely thin double-layer porous insulator of Z nm and relative permittivity of Q all in an electrolyte with a charging voltage of R V. 4.2 A MVA turbo-alternator is working on full load at power factor of B and efficiency of C%. find the quality of cooling air required per minute at full load, assuming that D % of the total losses are dissipated by internally circulating air. the inlet air temperature is E°C and the temperature rises to F°C. given that the specific heat of air is G and that of air at 1kg occupies 0.8 m³. G= 32 X= 6 Y= 2300 Z= 0.255 Q= 2.8 R= 3.8

4.1Calculate the energy capacity and the capacitance of a super capacitor consisting of X metal electrodes coated with a high surface area of Ym² type of activated carbon, separated by an extremely thin double-layer porous insulator of Z nm and relative permittivity of Q all in an electrolyte with a charging voltage of R V. 4.2 A MVA turbo-alternator is working on full load at power factor of B and efficiency of C%. find the quality of cooling air required per minute at full load, assuming that D % of the total losses are dissipated by internally circulating air. the inlet air temperature is E°C and the temperature rises to F°C. given that the specific heat of air is G and that of air at 1kg occupies 0.8 m³. G= 32 X= 6 Y= 2300 Z= 0.255 Q= 2.8 R= 3.8

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...

See similar textbooks

Similar questions

A Thyristor switched capacitor consists of: A. A fixed capacitance and a relatively small surge limiting inductance B. A fixed capacitance and relatively large surge limiting inductance C. A variable capacitance and a relatively smal surge limiting inductance D. A variable capacitance and a relatively large surge limiting inductance
A thyristor switched capacitor consists of: A. A fixed capacitance and a relatively small a relatively small surge limiting inductance B. A fixed capacitance and a relatively large surge limiting inducatance C. A variable capacitance and a relatively small surge limiting inductance D. A Variable capacitance and a relatively large surge limiting inducatnce
Generate a conclusion on this following statements: Determine and analyze the voltage regulation characteristics of the alternator with resistive, capacitive, and inductive loading.
A 5-ohm resistor is connected in series with a 25 micro-farad capacitor. A source voltage of158 volts, 50 Hz supplies the combination. Determine the following:a. Circulating currentb. Voltage across the resistorc. Voltage across the capacitord. Real power supplied by the source
A utility company plans to connect a total of 20uF of capacitance to a 7200 volt line. To make this connection four capacitors will be connected in series. What is the capacitance of each capacitor? Answer is 80uF. Now what is the minimum AC voltage rating of each capacitor?
Q.4/ choose true or false: 1. The reluctance of any core is proportional directly with the length of it and inversely with both the permeability and the cross-section area of it. 2. The number of parallel paths in wave windings is equal to twice of the number of poles. 3. In dc machines with same values of Z, N, Ø, the emf for wave winding type is more than emf of lab winding type. 4. If we insert a current in such a conductor subjected to a constant magnetic field, a movement will achieved giving the principle of electric generator.
The reactance of a generator is given as 0.1 pu based on the generator of 17 KV, 300 MVA. Determine the pu reactance on a base of 17 KV, 250 MVA. New pu reactance is.......
Referring to the figure below. assume a 6V battery having a negligible resistance. to be connected in series between the terminal of the dc generator having an internal resistance of 0.15 Ohm 10 charge two batteries A and B in parallel. If the internal resistances of batteries are 0.5 Ohm and 0.25 ohm respectively. determine the charging current through battery A using a.) Kirchhoff's Law. b.) Mesh Analysis, c.) Nodal Analysis, d.) Superposition Method, e.) Source Transformation Method f.) Thevinin's Theorem, g.) Norton's Theorem and h.)Millman's Theorem.
GENERAL RLC CIRCUITS: Solve and show your solution completely. Make sure your answers are in 4 decimals places. The ohmic resistance of a large magnetic contactor is measured to be 20 ohms. A 230 V 60 Hzis impressed upon the contactor and the current is taken as 3.2 amperes. Neglecting core loss,determine the inductance of the contactor in mH.
In order to obtain a highly links between two winding's, the coupling coefficient will be equal to . . of its maximum value. * .... ..... Twice One half Less than half More than half
vii. When two magnetic circuits are coupled..... the coupling coefficient is expressed by (a) K=M\ VL1 L2 viii. Impedance matching means (a) Transfer power to the load (c) Maximum power transfer to the load. (b) k= MIM2 (c) K= LIL2 (b) Minimum power transfer to the load
Draw the sinusoidal waveform of the AC voltage and current for the given loads below. Describe the characteristics of the waveform for each load. A. Pure resistor B. Pure inductor C. Pure capacitor