Sl. No Type of load Power rating of load Number of such loads Total power of each load Number of hours of usage per day (Approximately) From – To 1 Lamp 15 48   16h 2 Water heater 1500 9   2h 3 AC 3000 10   13h 4 Fan 80 16   10h 5 Refrigerator 275 3   24h Find the (i) total load        (ii) monthly energy consumption          (iii) load factor

Q: L14 Table 1: eg Example (same as last lecture): jXeq R₂ www mm R₁ www IM R, (1-s) JXM Rc ph S Given…

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Q: 19 Three parallel loads drawing 3 kW, 5kVA at 0.866 PF lagging and 4 kVA at 0.707 PF lagging are…

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Q: Three point charges as Determine the electric force on the -0.60 µC charge due to the other two…

A: The charge q1 will be acted by attractive force by other two charges in positive x and positive y…

Q: Consider the three-phase circuit shown in Figure 1. A generator supplies three loads: L,, L, and L,…

A: In this question, we need to determine the current in the each phase?  Draw the phasor diagram of…

Q: A charge of 3500 VA to a with a power 50 Hz and Vo lHage of 230RMS factov of 0,70 leading, connected…

A: In this question,  Find the value of the parallel inductance for power factor 0.9. Draw the power…

Q: H.W. For the given power system, find the source voltage in per-unit value and in actual units.…

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Q: In the system shown in Figure 1, the transformers are connected star-star with both star points…

A: In this question we need to find the load current in per unit value

Q: power station is to supply three loads. The daily cycle of loads are given below: 1. Draw the load…

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Q: Electrical Engineering From the following circuit, analyze the power consumption of the loads and in…

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Q: Determine the total power supplied to the load in Figure. 1202-90° V 100 N 100 A 100 2 1202150° V…

A: for a balance star connected system , phase current = Phase voltagephase impedance  = Line voltage…

Q: A daily load curve which exhibited a 15-minute peak of 3000 kW is drawn to scale of 1 cm = 2 hours…

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Q: In class B chopper, which of the given statement is true The value of On time is always less than…

A: The on time(Ton) is greater than off time(Toff). Hence option(1) is false.   In class B chopper,…

Q: A power station has the following daily load cycle: Time (Hours) 0-6 6-10 10 - 12 12 - 16 16– 20 20…

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Q: When a loaded generator is supplying power to a motor, a bal motor. When using Internal Voltage…

A: In the internal voltage method, the generator current represents the total current. Ig-internal…

Q: the circuit shown in the figure, a voltage with a peak value of 212.16 V is applied to the input of…

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Q: A tree-phase generator has a load 100 kw per phase at a power factor 80 percent,lagging what is the…

A: The active power consumed by a 3ϕ load is equal to the sum of active power consumed by each load.…

Q: A coal-fired combined cycle power plant serves a small city and has a load cycle shown below…

A: a) In Bar format  In Line format

Q: *LINE 1 P 1 KW consuming Q=1 KVAR consuming *LOAD 1 P 5 KN consuming Q =9.45 KVAR delivering *LINE 2…

A: As per Bartleby policy we can answer only three subparts. So I am solving first three for you please…

Q: A generation station has the following daily load cycle: 20-24 16-20 12-16 10-12 6-10 0-6…

A: we need to find out the value of X, and need to draw the load duration curve.

Q: H.w-A nuclear power station has plant capacity factor of 0.7 and supply two regions A&B and the…

A: Region 'A' load curve Region 'B' load curve Daily load curve of combined or total system- Time…

Q: Q: A power station of 2 MW is to supply two regions A & B. The daily of loads are given below Time…

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Q: 20- The data of the devices used in a 220 V sinusoidal single-phase workshop are given below.…

A: In the question A single phase system given.  The supplied voltage = 220 V According to this; What…

Q: Each load on the left is 25.1972+j240.0237 ohms. Voltage source is 230V line. Use two wattmeter…

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Q: Use phasor diagram of alternator in leading p.f. (figure 2-b in this lecture) to derive the fomula…

A: An alternator/Synchronous generator is a type of electrical machine that converts mechanical energy…

Q: The load in the circuit shown absorbs 50 kVA of complex power at power factar pf = 0.83 lagging when…

A: In this question we will find power factor at source with given data..

Q: During balanced load condition the current flowing through the neutral is

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Q: During balanced load condition the current flowing through the neutral is

A: Balance load :  when each load delivered equal power and all phase current equal then we called this…

Q: 1. A generation station has the following daily load cycle: 20-24 16-20 12-16 10-12 6-10 0-6…

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Q: The unknown current I, for the network given below is 50 A 10A, 100 A O - 60 A O 40 A O 60 A O - 40…

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Q: 3) For the circuit shown in Figure, determine the load impedance Z1. for maximum power transfer (to…

A: Given circuit shown

Q: A 3-phase, star-connected alternator has a resistance of 0-5 2/phase and a synchronous reactance of…

A: In this question we need to find a terminal voltage and voltage regulation of alternator for given…

Q: End product of Thermal power plant is O a. Smoke and Ash O b. Ash and Electricity O c. Smoke and…

A: To find out the correct answer

Q: 2. A resi'sAno load of io n bs conneeded through. thyetsoor half- voano chreuit to 230v, sO M3. 1-9…

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Q: In dc generator, is used to collect current and send it to the external circuit. O yoke O bearings…

A: Solution :    Here there asking the function of one of the part of the DC generator circuit.…

Q: At low power factor, the feeders have to carry more current for the same power to be transmitted.

A: In most LT conveyance circuits ordinarily the Power Factor goes from 0.65 to 0.75. A low Power…

Q: (а) Complete the table giving your answers to two decimal places. Reactive Specific Power Power…

A: (a) In the table most of the values are given in the table and the answers  we can take specific…

Q: What is the reserve capacity, if the maximum demand of generation of power is 50 MW, the load factor…

A: Given, Maximum demand MD=50 MW. Load factor LF=60%=0.6. Plant capacity factor PCF=50%=0.5.

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.