4. A balanced 30 wye load is connected across a 115 volts 30, 3-wire, an-bn-cn source. If the impedance of this load is 5 + j6 2 per phase, find the total power triangle of the wye load. CLOTERI WHLE 9 power & factor of 70% is connected across a 3-4001

Q: g. Find the power factor of the circuit, and indicate whether it is leading or lagging. h. What…

A: I have explained in detail

Q: A load of 40 -j 30 is connected to a source of 100 V with a phase angle of 300, through a…

A: Given load impedance, ZL=40-j30° On comparing with ZL=R-jXC

Q: Line Voltages at the terminal P2- The of abalanced Y connected load is Each phase of the load…

A: Per phase load 10∠ 30 ohm Per phase voltage Vph= 120∠0V Determine the Active power , reactive power…

Q: QUESTION 2 Two loads are connected in parallel to the supply, the first takes a current of 40 A at a…

A: Current I1 = 40 A lagging at 30⁰Current I2 = 30 A leading at 45⁰Asked to plot the phasor diagram and…

Q: In a three-phase wye-connected source, the three phase currents are 12/15° A, 12Z- 105° A, and…

A: This question belongs to circuit theory . It is based on the concept of three phase circuit . It is…

Q: 5 VZ90° 5 AZ0° 3Ω R, >4Ω 3Ω

A:

Q: balanced load is connected in star across a 3 phasec415V 50Hz supply. The load consists of a coil of…

A:

Q: A load of 40 -j 30 is connected to a source of 100 V with a phase angle of 30°, through a…

A: Given data : Load impedance ZL=40-30j Source Voltage Vs=100∠30° inductive reactance XL=60Ω

Q: A star connected reflector supplies a delta connected load. The impedance of the load branch is (8 +…

A:

Q: Given Zc - j339 , R₁ = 414 , RL = 12420 2 and a=0.24, what is the magnitude of the source voltage Vs…

A:

Q: 14.20 A load consists of a resistance connected in parallel with a capacitive reactance is taking 20…

A:

Q: Find the total real power dissipation in a balanced delta-connected system. Phase voltage is 100V…

A: Given: A balanced delta connected system Phase voltage, Vph=100 V Load impedance, Zph=175 Ω Power…

Q: rom the given circuit, take V₁ = 240, Z₁ = 20 - j3 ohms. Find the phase currents and line urrents.…

A: The given three phase system is balance. So we can analyse the circuit by per phase analysis.

Q: QUESTION 3 Find the magnitude of the phase voltage of a wye-delta system that has a balanced load of…

A: This problem is from star delta system of load  the answer is option d

Q: 12. Refer to the circuit below. The alternator has a line voltage of 240 V and the load has an…

A: In this question,  Star connect alternator is supplied to Delta connected load.  Find the phase,…

Q: Draw a 3-phase wye-connected generator with transmission lines connected to a 3-phase…

A: In this question we need to draw a 3 phase system having generator, transmission line and load.

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.