The rating of current transformer is given as 200/5A 5P10 20VA. Assume thatthe secondary resistance of the CT is 0.12 O. Calculate the following valueswhen the accuracy limit factor is 24.(i) New accuracy current limit,(ii) New secondary impedance,(iii) New burden in VA

Given CT secondary resistance =Rc t =0.12 Ω from CT data 200/5A 5P10 20VA Sn =20 VA I=5 A Fn=10

The rating of current transformer is given as 200/5A 5P10 20VA. Assume that the secondary resistance of the CT is 0.12 Q. Calculate the following values when the accuracy limit factor is 24. (i) New accuracy current limit, (ii) New secondary impedance, (iii) New burden in VA

The rating of current transformer is given as 200/5A 5P10 20VA. Assume that the secondary resistance of the CT is 0.12 Q. Calculate the following values when the accuracy limit factor is 24. (i) New accuracy current limit, (ii) New secondary impedance, (iii) New burden in VA

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.15P: Rework Problem 3.14 if the transformer is delivering rated load at rated secondary voltage and at...

See similar textbooks

Related questions

Q: 10 j4 2 is 10230 -j8 = 1OsLo v sLo•v

Q: Sheet No.2 Q1:- find the emitter, base and collector currents and voltages. Use B=30. +9V L1 kn +3 V…

A: The solution is given below

Q: Ew the following urcuit, R2 onsumes 0.5 W. etermine the values R, and Rq. of Ri 12 V. () R2 3 8V.

Q: 8.3.3 For the RLC circuit shown in the image below, if R1 = 7 2 and R2 = 7 2, C = 0.36 F, and the…

A: We need to find out voltage across resistor in given circuit.

Q: What will be the Nyquist's (minimal) sampling frequency (in Hz) to recover an input signal x(t)=…

A: Given data, Input signal xt=cos700t+cos500t

Q: (2 Assume a very simple microprocessor with 12 address lines with which we wish to implement only a…

A: as our policy i am solving first three parts

Q: Q36) Determine the stabjljty of the following system (marginal, stable, unstable). Jústify your…

A: Given system is represented in state space representation, we can decide stability by Determining…

Q: Determine the center frequency and bandwidth of the bandpass filters in Figure 2 and Figure 3. 2F 4F…

A: We are authorized to answer only 1 question at a time since you have nit mentioned which question…

Q: For the system shown below, each generator has positive, negative, and zero sequence reactances of 3…

A: given for generator positive,negative and zero sequence impedance are =3 ,2 and 1 ohm for…

Q: The main purpose of FACTS

Q: A peak input voltage of 200 is applied to a device with ohmic resistance of 10 Ohms to the flow of…

Q: 1. An alternating voltage is given by i = 30 sin (200nt + a/3) volts. Find (a) the amplitude, (b)…

A: As per our company guidelines we are supposed to answer only first 3 subpart kindly repost the other…

Q: 1.191 (a) Express the field D = (x² + y³)-'(xa, + ya,) in cylindrical components and cylindrical…

Q: What is the difference between NMOS and PMOS I-V Characteristic Curve?

Q: A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is 5.5 mH 55…

A: Given: Three series connected Inductor, L1=2 mHL2=3.3 mHL3=0.2 mH

Q: Follow the successive approximation ADC procedure to convert 3.23456 V

A: ADC- Full form of ADC is analog to digital conversions. And the electronics device used for…

Q: A 2500kVA, 6600V synchronous turbo alternator is operating at full load and 0.8 pf lagging. This…

Q: Three shunt generators operating in parallel supply a total load current of 2000 amperes. Each…

Q: Q.3: A 7KVA, 750/300-V, 50-Hz, single-phase transformer, the open and short circuit tests data are…

Q: Write at least 10 safety measures in circuit connection at home. Give a short explanation each.

A: Following are the safety measures in the circuit connection at home. 1. Always use correct wattage…

Q: 3. Find the value of R for maximum power transfer. Also, determine the maximum power.

Q: 5. In the circuit below, find v,(t), i,(t), and q,(t). Assume i(f) = 101(1) mA with t in ms. For…

Q: Determine the following ac values for the amplifier in Figure 3: Vcc +18 V Re 3.3 kN C3 V our R 47…

A: This question requires knowledge about small signal modelling of transister

Q: 3. For the cascade amplifier of Fig. 1, determine: a) A,- c) A =. d) Z, =. e) Z,- b) V,-

A: DC analysis of the JFET will be Drain…

Q: Law of Energy Conversion A. Connection of Power Plant to Consumers Energy converted from electrical…

A: The solution is given below

Q: 8.3.9 For the RLC circuit shown in the image below, if R1 = 2 S2 and R2 = 10 S2, c = 0.10 F, and the…

A: We need to find voltage across resistor in given circuit.

Q: A 460-V, 25-hp, 60-Hz, four pole, Y-connected induction motor has the following impedances in ohms…

Q: D1.23 Find the zero-state response for 0 of the systems with the following transfer functions and…

Q: Design a basic wide-band, RC band stop filter with a lower cut-off frequency of 200Hz and a higher…

A: Band-stop filter: This filter attenuates a particular range frequency. If there are two frequencies…

Q: How about the d and e

A: The mechanical power generated in the armature is Pmech=Eb·Ia,Pmech=491×18Pmech=8838 W.

Q: Derive the transfer function of the following Sallen-key low pass filter.

Q: A current sheet k= 1oaz A/m lies inx=5m plane- asecand sheet K=-10az Anties in X=-5m plane find H at…

A: We need to find magnetic field for current sheet at different point .

Q: Explain how to drive DC Motors!

Q: 2. Find the mesh currents in the circuit I kQ ww 1k2 12 V 10 v O ) 12 V www

Q: (use 2-decimal digits for solutions) A 6-pole, 500-V. wave-connected shunt motor has 1200 armature…

Q: Consider the n-input logic gate shown below that operate with the following voltage thresholds: Vol…

A: A logic gate is a model of a digital electronic device, it can any number of inputs but can have…

Q: 6. Fill in the following truth tables for SR, JK, T and D flip-flops. Also sketch the symbol. SRQ+ 0…

A: We need to find truth table and characteristics table for given flip flop

Q: A BJT has a = 0.99, ig = Ig = 25µA, and IcBo 200 nA. Find:

Q: Sheet No.2 Q1:- find the emitter, base and collector currents and voltages. Use B=30. +9 V 1.1 kn +3…

Q: EXERCISE 2: An air-filled 5- by 2-cm waveguide has Ezs = 20 sin 40nx sin 50ry eBz v/m at 15 GHz. (a)…

Q: What will be the Nyquist's (minimal) sampling frequency (in Hz) to recover an input signal x(t)=…

A: Given: Input signal xt=cos700t+cos500t

Q: 8.18.2 For the RLC circuit shown in the image below, assume the circuit has long reached steady…

A: For the RLC circuit shown below in the figure switch is opened at t=0. Calculation of capacitor…

Q: Find the Laplace transform of the following functions Initial conditions are 0

A: Given, d2xdt2+4dxdt+5x=1 Initial conditions are zero.

Q: Q.2 Explain the principle of work to these two sensors and draw the sensor's pinout configuration 1.…

A: 1. Passive Infrared Sensor Unlike any other sensors passive infrared sensors doesn't work or detect…

Q: Determine the frequency of signals with wavelengths of 40 meters, 5 meters, and 8 centimeters

Q: 2.2: The parameters of a 200/3000V, 50HZ single phase transformer are given below: R=0.018 N,…

A: (i) The equivalent circuit for the given problem is,

Q: 1. 2. How many electrons must be removed from a neutral object to leave a net charge of 0.500 µC?

A: Since you have asked multiple questions in a single request, we will be answering only the 1st…

Q: Q1) For the network in a. Find the mathematical expression for the voltage across the capacitor…

Q: Express the complement of the given Boolean function below in the following form: F(A,B,C,D) =…

Q: Find the Laplace transform of the following functions + 5x 1 dr ap Initial conditions are 0

A: We need to find Laplace transform of given signal .

Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

Question

The rating of current transformer is given as 200/5A 5P10 20VA. Assume that
the secondary resistance of the CT is 0.12 O. Calculate the following values
when the accuracy limit factor is 24.
(i) New accuracy current limit,
(ii) New secondary impedance,
(iii) New burden in VA

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

(iii) New burden in VA is

VIEW

(ii) New secondary impedance

VIEW

i) New Accuracy current limit

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across a transformer, the voltage base is changed in proportion to the transformer voltage ratings. (a) True (b) False
For the transformer in Problem 3.10. The open-circuit test with 11.5 kV applied results in a power input of 65 kW and a current of 30 A. Compute the values for GcandBm in siemens referred to the high-voltage winding. Compute the efficiency of the transformer for a load of 10 MW at 0.8 p.f. lagging at rated voltage.
For a short-circuit test on a 2-winding transformer, with one winding shorted, can you apply the rated voltage on the other winding? (a) Yes (b) No
A single-phase two-winding transformer rated 90MVA,80/120kV is to be connected as an autotransformer rated 80/200kV. Assume that the transformer is ideal. (a) Draw a schematic diagram of the ideal transformer connected as an autotransformer. showing the voltages, currents, and dot notation for polarity. (b) Determine the permissible kVA rating of the autotransformer if the winding currents and voltages are not to exceed the rated values as a two-winding transformer. How much of the kA rating is transferred by magnetic induction?
A single-phase l0-kVA,2300/230-volt,60-Hz two-winding distribution transformer is connected as an autotransformer to step up the voltage from 2300 to 2530 volts (a) Draw a schematic diagram of this arrangement, showing all voltages and currents when delivering full load at rated voltage. (b) Find the permissible kVA rating of the autotransformer if the winding currents and voltages are not to exceed the rated values as a two-winding transformer. How much of this kVA rating is transformed by magnetic induction? (C) The following data are obtained from tests carried out on the transformer when it is connected as a two-winding transformer: Open-circuit test with the low-voltage terminals excited: Applied voltage =230V, input current =0.45A, input power =70W. Short-circuit test with the high-voltage terminals excited: Applied voltage =120, input current =4.5A, input power =240W. Based on the data, compute the efficiency of the autotransformer corresponding to full load, rated voltage, and 0.8 power factor lagging. Comment on why the efficiency is higher as an autotransformer than as a two-winding transformer.
Consider an ideal transformer with N1=3000andN2=1000 turns. Let winding 1 be connected to a source whose voltage is e1(t)=100(1| t |)volts for 1t1ande1(t)=0 for | t |1 second. A2- farad capacitor is connected across winding 2. Sketch e1(t),e2(t),i1(t),andi2(t) versus time t.
A two-winding single-phase transformer rated 60kVA,240/1200V,60Hz, has an efficiency of 0.96 when operated at rated load, 0.8 power factor lagging. This transformer is to be utilized as a 1440/1200-V step-down autotransformer in a power distribution system. (a) Find the permissible kVA rating of the autotransformer if the winding currents and voltages are not to exceed the ratings as a two-winding transformer. Assume an ideal transformer. (b) Determine the efficiency of the autotransformer with the kVA loading of part (a) and 0.8 power factor leading.
What are the advantages of correctly specifying a transformer most Suita ble for its application?
Why is it important to reduce the moisture within a transformer to acceptable levels during transformer installation?
Consider a source of voltage v(t)=102sin(2t)V, with an internal resistance of 1800. A transformer that can be considered as ideal is used to couple a 50 resistive load to the source. (a) Determine the transformer primary-to-secondary turns ratio required to ensure maxi mum power transfer by matching the load and source resistances. (b) Find the average power delivered to the load, assenting maximum power transfer.
What is the purpose of a transformer? Draw the symbols for a transformer.
Consider the oneline diagram shown in Figure 3.40. The three-phase transformer bank is made up of three identical single-phase transformers, each specified by X1=0.24 (on the low-voltage side), negligible resistance and magnetizing current, and turns ratio =N2/N1=10. The transformer bank is delivering 100 MW at 0.8 p.f. lagging to a substation bus whose voltage is 230 kV. (a) Determine the primary current magnitude, primary voltage (line-to-line) magnitude, and the three-phase complex power supplied by the generator. Choose the line-to-neutral voltage at the bus, Va as the reference Account for the phase shift, and assume positive-sequence operation. (b) Find the phase shift between the primary and secondary voltages.