Two three-phase Alternator A and Alternator B are connected in parallel. Power of Alternator A and Alternator B their values are 1200kW and 1600kW respectively. Frequency load characteristic of alternator A at full load 51.2Hz to 49.6Hz The frequency load
Two three-phase Alternator A and Alternator B are connected in parallel. Power of Alternator A and Alternator B their values are 1200kW and 1600kW respectively. Frequency load characteristic of alternator A at full load 51.2Hz to 49.6Hz The frequency load characteristic of Alternator B varies from 51.6Hz to 49.4Hz while changing between. a) How do you find Alternator A and Alternator B sharing 2500kW load? What is the operating frequency of the system? b) If the alternators share the load according to their ratio, then what is the operating frequency of the system?
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Two three-phase Alternator A and Alternator B are connected in parallel. Power of Alternator A and Alternator B their values are 1200kW and 1600kW respectively. Frequency load characteristic of alternator A at full load 51.2Hz to 49.6Hz The frequency load
2. Two alternators A and B are operating in parallel to supply power to a load 1000 kVA at 0.8 pf laggine alternator A contributes 500 KVA at 0.6 of ageing calculate the real power and power factor o...
2. Two alternators A and B are operating in parallel to supply power to a load 1000 kVA at 0.8 pf laggine alternator A contributes 500 KVA at 0.6 of ageing calculate the real power and power factor of & iS points) 3. A 440 V, 4-pole, 60 Ht, 3-phase wye-connected induction motor runs at 1700 rpm during the normal operation. The motor has the following data; (20 polets X, 1.2 ohms 0.89 ohms X -0.56 ohms Ra 025 ohmg...
3 A 11-KV, has a full-load quadrature-axil IV. three-phase, 20-pole, star-connected, salient-pole synchronous alternator full-load current...
3 A 11-KV, has a full-load quadrature-axil IV. three-phase, 20-pole, star-connected, salient-pole synchronous alternator full-load current of 1000 A The resistance of the rotor is 1,2 phase The rature-axis synchronous reactance per phase is 4.8 and the direct-axis nchronous reactance per phase is 3, 62 Determine for a lagging power factor of 0,8 a) the load angle, b) the developed power, c) the reluctance torque, and d) the voltage regulation СНАР 245 MM401EE
If a three-phase load is a pure reactive load, then the power calculated has units of...
If a three-phase load is a pure reactive load, then the power calculated has units of _____. A delta-connected three-phase alternator is driving a wye-connected resistive load. The alternator output voltage is 480 V. The load resistors are 12 W each. What is the phase current in the alternator?
1- A 25-kVA, 3-phase, wye-connected, 400-V alternator has a synchronous reactance of 1.6 ohms per phase....
1- A 25-kVA, 3-phase, wye-connected, 400-V alternator has a synchronous reactance of 1.6 ohms per phase. The alternator is to have zero voltage regulation at half-load. Neglecting the armature resistance, find the operating power factor and the developed power 2. A 500-kVA, 3600-V, 3-phase, 60-Hz alternator has an effective armature resistance per phase of 0.40 ohm Mechanical and iron losses is 10 kW, field current at full load unity power factor is 70 A. The exciter voltage is constant at...
A 400 v, 50 Hz, three phase alternator, rated at 75 kVA, is star connected and...
A 400 v, 50 Hz, three phase alternator, rated at 75 kVA, is star connected and driven at 1000 r/min. The windings of the alternator have a resistance, per phase, of 0.03 Ω and synchronous reactance, at 50 Hz per phase, of j0.325 Ω. The stator of the alternator has 108 slots, with 8 conductors, per slots, in a double layer. The maximum pole flux is 8.772 x 10-3 Wb. To improve the wave form only 80% of the pole...
(4b) Two parallel three-phase loads are connected to a three-phase A connected source through a line....
(4b) Two parallel three-phase loads are connected to a three-phase A connected source through a line. The line voltage VAB at the two loads is 200 230° V. One load is configured in Y and absorbs three-phase real power 40KW with a 0.9 leading power factor, and the other load s configured in A with ZA = 12+j150 per phase. Please calculate (a) The line currents (11pts) (b) The power factor at the combined load (3pts) (c) The phase currents...
2. Two balanced three-phase loads are connected in parallel. One load with per phase impedance 21...
2. Two balanced three-phase loads are connected in parallel. One load with per phase impedance 21 ?, is connected in delta, and the other load has per phase impedance 15 2 and is connected in wye. Ignore the line impedance. If the line voltage is a 208230° Vrms, determine (a) the phase voltage for phase-a, ) the line current Ia*, (c) the phase currents in the delta load (d) the complex power of the load and the power factor.
A three-phase load of 15 kVA with a PF of 0.8 lagging is connected in parallel...
A three-phase load of 15 kVA with a PF of 0.8 lagging is connected in parallel with a three-phase load of 36 kW at 0.6 PF leading. The line-line voltage is 2000V. a) Find the total complex power and power factor. Is it inductive or capacitive? b) How much kVAR is needed to make the PF unity? c) What is the magnitude of the current going into the total load?
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of...
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 400+j300 2/0; load 2 is A-connected with an impedance of 2400-j18000/0; and load 3 is 172.8+j2203.2 kVA. The loads are fed from a distribution line with an impedance of 2+j16 0/0. The magnitude of the line-to-neutral voltage at the load end of the line is 2413 kV. Calculate the total complex power at the sending end of the line. :) Magnitude of the total...
Three physically identical synchronous generators are operating in parallel. They are all rated for a full...
Three physically identical synchronous generators are operating in parallel. They are all rated for a full load of 3 MW at 0.8 PF lagging. The no-load frequency of generator A is 61.2 Hz, and its speed droop is 3.4 percent. The no-load frequency of generator B is 61.5 Hz, and its speed droop is 3 percent. The no- load frequency of generator C is 60.5 Hz, and its speed droop is 2.6 percent. (a) If a total load consisting of...
2. Two alternators A and B are operating in parallel to supply power to a load 1000 kVA at 0.8 pf laggine alternator A contributes 500 KVA at 0.6 of ageing calculate the real power and power factor of & iS points) 3. A 440 V, 4-pole, 60 Ht, 3-phase wye-connected induction motor runs at 1700 rpm during the normal operation. The motor has the following data; (20 polets X, 1.2 ohms 0.89 ohms X -0.56 ohms Ra 025 ohmg...
3 A 11-KV, has a full-load quadrature-axil IV. three-phase, 20-pole, star-connected, salient-pole synchronous alternator full-load current of 1000 A The resistance of the rotor is 1,2 phase The rature-axis synchronous reactance per phase is 4.8 and the direct-axis nchronous reactance per phase is 3, 62 Determine for a lagging power factor of 0,8 a) the load angle, b) the developed power, c) the reluctance torque, and d) the voltage regulation СНАР 245 MM401EE
(4b) Two parallel three-phase loads are connected to a three-phase A connected source through a line. The line voltage VAB at the two loads is 200 230° V. One load is configured in Y and absorbs three-phase real power 40KW with a 0.9 leading power factor, and the other load s configured in A with ZA = 12+j150 per phase. Please calculate (a) The line currents (11pts) (b) The power factor at the combined load (3pts) (c) The phase currents...
2. Two balanced three-phase loads are connected in parallel. One load with per phase impedance 21 ?, is connected in delta, and the other load has per phase impedance 15 2 and is connected in wye. Ignore the line impedance. If the line voltage is a 208230° Vrms, determine (a) the phase voltage for phase-a, ) the line current Ia*, (c) the phase currents in the delta load (d) the complex power of the load and the power factor.
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 400+j300 2/0; load 2 is A-connected with an impedance of 2400-j18000/0; and load 3 is 172.8+j2203.2 kVA. The loads are fed from a distribution line with an impedance of 2+j16 0/0. The magnitude of the line-to-neutral voltage at the load end of the line is 2413 kV. Calculate the total complex power at the sending end of the line. :) Magnitude of the total...
Three physically identical synchronous generators are operating in parallel. They are all rated for a full load of 3 MW at 0.8 PF lagging. The no-load frequency of generator A is 61.2 Hz, and its speed droop is 3.4 percent. The no-load frequency of generator B is 61.5 Hz, and its speed droop is 3 percent. The no- load frequency of generator C is 60.5 Hz, and its speed droop is 2.6 percent. (a) If a total load consisting of...
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