3. Poles, speed a.) A motor-generator system can be used to converter power from 50Hz system...
Problem 3- At a location IMW of power at 50Hz is required, the only source available is at 60Hz. Pick a synchronous motor generator set to make this possible Problem 3- At a location IMW of power at 50Hz is required, the only source available is at 60Hz. Pick a synchronous motor generator set to make this possible
QUESTION 2 The voltage of an AC generator is controlled by? Increasing or decreasing the field current Increasing or decreasing the armature current The number of slip rings QUESTION 3 The frequency of an AC generator is unknown. We know the number poles which 6 and we know the speed n which is 1200rpm. What is the frequency? 602. 50Hz 1200HZ QUESTION 4 The frequency of an AC generator is unknown. We know the number poles which 6 and we...
7. A three-phase asynchronous motor is labeled: Mot. 3-50Hz 2.2 kW, 1425 rpm, coso = 0.8 Y 400V / 4.8A D 230V / 8.3A a) What is the synchronous motor speed? b) How many poles does the motor have? c) What will the slip and efficiency of the motor be when operating at rated values? d) Can the motor be connected to a 400/690 V power supply? If so, how should it be connected to the grid?
need full solution plz A figure in the following shows a connection between a synchronous generator and a synchronous motor. The rated specifications of each of the two machines are also shown. Pout(G)Pin(M) Synchronous Pin(G) Synchronous Pout(M) C. Generator Motor Sync. Generator Specifications Sync. Motor Specifications Terminal Voltage 480 V | Terminal Voltage Power Factor 0.8 lagging Power Factor 0.8 leading Apparent Power 200-kVA Active Power 40-kW Frequency 50 Hz Frequency Y (wye) Connection 0.30Synch Reactance 0.0 Ω I Armature...
2.3 (20 points) A separately-excited de motor is mechanically coupled to a three-phase, 4-pole, 30-kVA, 460-V, round-rotor synchronous generator. The de motor is connected to a constant 230-V de supply The ac generator is connected to a 460 V, fixed-voltage, fixed-frequency, three-phase supply. The synchronous reactance of the synchronous generator is 513 Ω/phase. The armature resistance of the de motor is 30 m2. The 4-pole de machine is rated 30 kW at 230 V. All unspecified losses are to be...
Problem 2: 50pts To monitor the rotation speed of a shaft, a generator motor attachment has been suggested. Here a permanent magnet motor, shown below, is directly attached to the shaft. Stator (magnet) Armature winding Bearing Power supply Brush Commutator Rotor A voltmeter is connected to the power supply connection and is calibrated for various voltage-rpm values. a) Determine the governing equations for this system. (use the motor rotation as the input and the voltage generated as the output) b)...
3. (30) A simple power system, shown below, is made up of a synchronous generatcr connected to a synchronous motor through a couple of transformers and a transmission line. The reactances of the different elements of the system are all given in pu as: Xsg-0.5 X of each transformer-10 % Xsm-0.5 X transmission line 0.3 The synchronous motor is connected to an infinite bus Hint: The great advantage of an infinite bus is that it always remains constant and our...
HOW KNOW CAN SOLVE 3 (MATLAB CODE ONLY): The following test results are obtained from a 3p, 100hp, 460V, eight-pole, star-connected squirrel-cage induction machine. No-load test: 460 V, 60 Hz, 40 A, 4.2 kW Blocked-rotor test: 100 V, 60 Hz, 140 A, 8.0 kW Average dc resistance between two stator terminals is 0.152 2. - 2.The motor is connected to a 30, 460 V, 60 Hz supply and runs at 873 rpm. Determine and display the: (b) Input current (c)...
transient system stability is the subject (Q2) Suppose you are working as a testing engineer at AI Rusail Power Plant, Oman. You are going to test the newly erected 4 pole synchronous gererator having H = 6000KJ/MVA which is going to be connected with a synchronous motor having H = 4000 KJ/MVA through a network of reactances. Assume the generator is delivering power of 1.0 p.u. to the motor when a fault occurs which reduces the delivered power. What would...
A 480-V 100-kW 0.85-PF leading 50-Hz six-pole Y-connected synchronous motor has a synchronous reactance of 1.5 and a negligible armature resistance. The rotational losses are also to be ignored. This motor is to be operated over a continuous range of speeds from 300 to 1000 r/min, where the speed changes are to be accomplished by controlling the system frequency with a solid-state drive. (a) Over what range must the input frequency be varied to provide this speed control range? 6-6....