3. The insulation used in high voltage circuit breakers of large power rating is (a) air (b) vacuum (c) SF6 (d) mineral oil
Q: Which of the following is responsible for transforming an electrical signal to a physical output in…
A: The thing which is responsible for transforming an electrical signal to a physical output in the…
Q: seatwork/assigmment: VLCs) %3D GOLUE 3 TH is Kint Tes) +56 +e
A:
Q: 3.27 i Let D = 5.00/²a, mC/m² for r 0.08 m. (a) Find p, for r = 0.06 m. (b) Find p, for r = 0.1 m.…
A:
Q: a. it is the force exerted by the motor to perform a task b. it is a type of motor which is…
A: A motor is a device used for converting electrical to mechanical energy, they are three types of…
Q: 3. Identify the following circuit diagram then complete the timing diagram of the following circuit.…
A: It is a JK FLIP FLOP.
Q: Open write T-L with L=30 m , ZR = Z, = 50 N , f=50 MHZ Find Z, and Za d = 10 m
A: Here their is no need of frequency and length to calculate impedance at a any distance because here…
Q: What is the energy stored in the 1 H inductor? 5Ω 10 Ω 1 H 15 V 10 Ω 2 F 10Ω ll 5 H 5Ω
A:
Q: 4. A single phase load draws a current of 30 / 35 deg A. The voltage across the load is 220 /75 deg…
A:
Q: The equivalent (i.e. total) impedance seen by the power supply in this circuit is: 8Ω 5 cos 2t A 4 H
A:
Q: O +Vcc R Q2 D O Vout Da QI R OOv
A:
Q: The deep well pump can discharge a water at a flow rate of 150 cfm against a total head of 50m. If…
A: Given data Q=150cfm H=50m Pump efficiency=85% Motor efficiency=90%
Q: Consider an a.c circuit supplied by 220V at 50HZ. The circuit consists of only two inductors, L1 and…
A:
Q: Question 1 of 40 For maximum efficiency of a transformer, the ratio of iron loss to copper loss is:…
A: This question belongs to electrical machine . It is based on the concept of efficiency of a…
Q: Refer to Figures 1a and 1b, answer the questions below. la 3 V VI V2 2 V i, 4 V 5 V iz i3 ic Fig. 1a…
A:
Q: For a two-port reciprocal network, the three transmission parameters are A = 4, B=7 and C = 5. What…
A: The solution is given below
Q: 3. The equation for a current is given by i = 20.2513 sin a. At what angles will the instantaneous…
A: We need to find out value of angle for given current value .
Q: Question 9 The following signal goes through a lowpass filter with cutoff frequency of fc=100HZ.…
A: A waveform of a signal is given in the question. This is signal is allowed to go through a low pass…
Q: Given Vdc =10 V in the circuit below, what is the maximum value of R that can be used for this…
A:
Q: T-L with Zo=6000,ZR = 100 0. Find the length and location of the single stub terminated by short…
A:
Q: 4. (a) A resistor network is shown in Figure 4(a). By applying the Kirchhoff's current law,…
A:
Q: What is the voltage Vin the following circuit? + 1V – - + 5 V + 5 A A (V 4Ω. -
A:
Q: Explain briefly but clearly how to identify the anode and cathode of a semiconductor diode?
A:
Q: I need to convert the drawing from a handwritten drawing to a typeface on a computer or computer in…
A: The given circuit has been converted from handwritten to computer-drawn as shown below:
Q: Calculate the voltages and currents of each ideal diode
A:
Q: Please draw
A: The D flip flop, according to the given question, is a negative edge-triggered flip-flop. In the…
Q: A 3-50 KVA, transformer bank supplies the following initial loads of 40KW,0.80 lagging pf. Determine…
A:
Q: F ind the thevenin and nortons equi valent Circuit for the por tiors of thne networks in the figure…
A:
Q: What are the maximum rate and bandwidth of BPSK modulation?
A: Types of Phase shift keying ( PSK) PSK BPSK QPSK O- QPSK 8 PSK 16 PSK
Q: In a series RLC circuit supplied by a source of 125 V at a resonant frequency of 220 Hz, the…
A: 1
Q: Short Circuit T-L, sketch the SW Pattern for Ed sketch the Variation of Zd with distance ,d%3D0, 8.…
A: Impedance at lambda/4 distance from receiving end is infinite
Q: 6. Find the unit impulse response of an LTI system specified by the following differential equation:…
A: Given data: LTI system differential equation d2ytdt2+6dytdt+9yt=2dxtdt+9xt To determine the unit…
Q: R Xc un. R- 55 N Xc = 55 5 XL= 555L 2 TfL SOLUE: ☺ Ċ in farads use Xc E 2TFC OL in finrye 4re XL…
A:
Q: In a tansistor, IC = 100 mA and IE = 100.2 mA. The value of B O50 O100 about to1 O 200
A:
Q: 4. AP'N abrupt junction silicon diode has Na = 10" cm and Np= 5x1015 cm. Given 7, (in N) = 0.1µus,…
A: A PN junction refers to a combination of PN layers inside a semiconductor material.A PN abrupt…
Q: 50kn lokn 20 kr V03 BA Z 8.33k 20 k lo ka RA = 8.33 ku %3D V03 net vo,
A: We need to find out the output for given opamp
Q: Vet lok. virt hint: Vo = (To 2- Va) 5 Km
A: We need to find out output voltage for given circuit.
Q: 3. The input frequency to a mod 10 counter is 1000HZ. What is the output frequency of the last flip…
A:
Q: 6. The points A(8, 3, 2); B(4,-1,2) and C(0, 3, 2) formed vhat kind of triangle?
A:
Q: 2. In the circuit shown, find the current through the capacitor using Kirchhoff's Law
A:
Q: Question 40 of 40 An electrical resistance strain gauge is subjected to strain of 0.001. If the…
A: In this answer we will find the correct change in the resistance of the strain gauge using the…
Q: Question 25 RC R1 C1 Vsignal R2 RE C2 If Vec = 12 Vdc, Vsignal = 15mVpp, R1 = 20 kOhms, R2 = 3.3…
A:
Q: Trianqulur wire loap Co,g0) C4,0,0) ca.o,us gien 8-4T wire resistane %3D - Fird indurad current…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Define and differentiate HPLC and Reverse Phase LC
A: Brief description : In the above given question they want to have a definition and difference…
Q: Explain how the pulsating mmf of a single-phase induction motor may be considered equivalent to two…
A: Given, Output power, Pout=125 WNumber of pole. P=4Supply voltage, Vs=110 VFrequency, f=50 HzNo load…
Q: 4. A single phase load draws a current of 30 / 35 deg A. The voltage across the load is 220 / 75 deg…
A:
Q: While it is common for electricity to be caused by the flow of electrons, we know that electric…
A:
Q: Determine the B, value from this polarization curve. -300 -350 -400 -450 -500 -550 -600 -650 -700…
A: A A polarization curve is given in the question. We need to determine the value of βa.
Q: What is the condition of a unipolar stepper motor if the resistance reading is always low?
A: An electrical motor is called stepper motor when the motor can be controlled on each step division…
Q: VDD = 12 V 470k ohms 33k ohms ID Ipss = 12.5mA Vps Vp = - 10 V %3D VGs 130k ohms 2.0k ohms
A: Given data Idss=12.5mA Vp=-10V
Q: Vcc 2.2 k2 Rs VCE = 7.2 Ig = 20 HA IE = 4 ma FIG. 120
A:
Step by step
Solved in 2 steps
- In an outdoor substation the three bus-bar conductors are supported by units of post type insulators. Each unit consists of a stack of 3 pin type insulators fixed one on the top of the other. The voltage across the lowest insulator is 15kV and that across the next unit is 12kV. Estimate: i. ratio of mutual to self-capacitance ii. the bus-bar voltage of the substation. iii. Efficiency across the string of insulatorsIn an outdoor substation the three bus-bar conductors are supported by units of post type insulators. Each unit consists of a stack of 3 pin type insulators fixed one on the top of the other. The voltage across the lowest insulator is 15kV and that across the next unit is 12kV. Estimate: ratio of mutual to self-capacitance i. the bus-bar voltage of the substation. Efficiency across the string of insulators ii. iii.Single core cable design for 25 kV. The radius of conductor is 0.5 cm. The insulation material consists of two layers. The thickness of each layer is 2 cm. The voltage of first and second layers are 20 kV, 5 kV respectively. The maximum Electric stress of the cable is
- Single core cable design for 25 kV. The radius of conductor is 0.5 cm. The insulation material consists of two layers. The thickness of each layer is 2 cm. The voltage of first and second layers are 20 kV, 5 kV respectively. The minimum Electric stress of the cable isIn a string of suspension insulator with three units, the line unit has 20kV and k=0.35. The voltage across tower unit is........ and across middle unit is.......Why Kelvin bridge is used for measurement of low resistance ____________________. a. due to a large current flow b. due to power dissipation across the circuit c. due to contact and lead resistance d. due to emf source used
- Question 1:a) State why voltage control and cable stranding are necessary in powersystemsb) Briefly explain where and how the following state variables ofa power supply grid are controlled.i) Frequencyii) Active powerili) Reactive poweriv Voltage.The three bus-bar conductors in an outdoor sub-station are supplied by units of post insulators. Each unit consists of a stack of 3-pin insulators fixed one on the top of the other. The voltage across the lowest insulator is 8-45 kV and that across the next is 7-25 kV. Find the bus-bar voltage of the station.INSULATORS A string of suspension consists of four (4) units. The Voltage between each pin and earth is 0.14 of the Self-Capacitance of the unit. The Voltage between the Line Conductor and earth is 135 KV. Find the Voltage distribution across each unit. Draw the diagram.
- Compared to the original circuit that it replaces, an equivalent circuit will always have:a. the same power dissipation.b. the same number of componentsc. the same voltage and current for a specific loadd. all of the abovei) Calculate V1 and V2 for the voltage across the string insulator having phase voltage of 33kV for transmission line using details tabulated in the Table 3(a). Table 3(a) Type of Insulator Shunt Capacitance between each unit 0.1 C String to junction Self -Capacitance of each insulator ii) With the help of a suitable schematic diagram and necessary theoretical explanation, illustrate how to improve the efficiency of the suspension insulator.7. TY Hat CHICL Ans. 1. Iron los.........varies approximately as V². 2. Cu loss..........it also varies as ² but decreases with an increase in voltage if constant kVA output is assumed. 3. Efficiency...........for distribution transformers, efficiency at fractional loads decreases with in- crease in voltage while at full load or overload it increases with increase in voltage and vice- versa. 4. Regulation..........it varies as but decreases with increase in voltage if constant kVA output is assumed. 5. Heating.........for constant kVA output, iron temperatures increase whereas Cu temperatures decrease with increase in voltages and vice-versa. quems