A string of thyristor is connected in series to withstand a DC voltage of 11 kV. The maximum leakage current and recovery charge difference of 150 mA and 250 µC. Respectively consider the string efficiency of 85% and maximum voltage across each SCR is 1000 V. Dynamic equalizing capacitance and static equalizing resistance are respectively.

A string of thyristor is connected in series to withstand a DC voltage of 11 kV. The maximum leakage current and recovery charge difference of 150 mA and 250 µC. Respectively consider the string efficiency of 85% and maximum voltage across each SCR is 1000 V. Dynamic equalizing capacitance and static equalizing resistance are respectively.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 16RQ: Explain the difference between cumulative- and differential-compounded connections.

See similar textbooks

Similar questions

Please answer the following points in detail and rigorously. Instead ofresort to formulas, develop from basic principles (laws ofvoltages and currents, definition of electrical power, properties ofphasors, among others) a) Suppose that between the two terminals of an element there is a voltage v (t) and that through the terminal marked with a positive sign a current i (t). Show that if v (t) and i (t) are sinusoidal and are out of phase an angle θ, then the active power P which is consumed by this element is proportional to cosθ. b) How much is P for a pure inductor and how much for a capacitor pure? Does this make physical sense? c) When the power factor seen between two terminals is specified, Why is it necessary to indicate whether it is late or early? d) Show that the complex power consumed by two elements in parallel is the sum of the individual complex powers. After, repeat the procedure but for two elements in series. e) What meaning would you give to the P consumed by an…
Discuss the working principle of STATCOM with the aid of diagram and equations, stating the active and reactive power flow equations.
AA chopper circuit in the figure, 400 ? (???)Control the power of an ohmic load from a 50 ?? source.. Since the load resistance is 20 Ω and ? = 30 °,a) The effective voltage, current and power of the load,b) Input power factor,c) Apparent, active and reactive powers drawn from the network,d) Minimum blocking voltage of thyristor,e) Average value of each thyristor current,f) The required firing angle for the power transferred to the load to be 80% of the maximum power,calculate.
How to obtain Vth? For below diagram Do solution
A lossy capacitor Cx, rated for operation of 5 kV, 50 Hz is represented by an equivalent circuit with an ideal capacitor Cp in parallel with a resistor Rp. Cp is 0.102 microF and Rp=1.25 Mohm. The power loss, and loss tangent of this lossy capacitor at rated voltage respectively ?
A highly inductive load, such that load current can be assumed constant, is to be supplied from a 230 V, 50 Hz, single-phase supply by a fully-controlled and a halfcontrolled bridge. Compare the average load. Voltage provided by each bridge at firing angles of 30° and 90°. Neglect device voltage drops.
Explain the importance of distribution considerations for electrical loads and economic considerations in the distribution system. Justify your answer with real time applications.
A 30-volt electromotive force is applied to an ??-series circuit in which the inductance is 0.1 henry and the resistance is 50 ohms. Find the current ?(?) if ?(0) = 0. Determine the current as ? → ∞.
Describe how electrical engineering and electrical engineering technology differ and are the same with regard to adaptability to current industrial practices
Write the application of super tension that have rating upto 33KV and what used for?
Construct the circuit in Figure 1 in the Circuit JS simulator. Note that the voltage source is given in RMS. Within Circuit JS while defining the max voltage of the voltage source include “rms” after the number to tell Circuit JS that this is a rms value. Also note that there are additional parameters when instantiating a transformer in Circuit JS. Leave these at the default values. Additionally, transformers may have problems simulating in Circuit JS. Answer the following: 1. From the simulation results, determine the power dissipated in R2 and compare to the expected value from the previous section.2. Change the transformer ratio (“Ratio” as a fraction when you “Edit…” the transformer component) to the value calculated in the previous section to provide maximum power transfer in R2. Note: In Circuit JS, Transformer Ratio = Primary/Secondary.3. Rerun the simulation, calculate the power dissipated in R2 and compare to the expected value from the previous section.4. Change the…
Determine the transfer function for a tubular heat exchanger similar to the one shown in Figure 2.3 and described by the following differential equation: ** Please see attachment