a dynamic delivers 3.0A at 120V to an external circuit when operating at 120rpm. what torque...
a dynamic delivers 3.0A at 120V to an external circuit when operating at 120rpm. what torque is required to drive the generator at this speed if the total power losses are 400W?
Homework Answers
Add Answer to:
a dynamic delivers 3.0A at 120V to an external circuit
when operating at 120rpm. what torque...
A 30 hp, 240 V, 1150 rpm de shunt motor operating at rated conditions has an efficiency of 88.5%. The armature circuit resistance and field circuit resistance are 0.096 Ω and 936 Ω respectively. Calc...
A 30 hp, 240 V, 1150 rpm de shunt motor operating at rated conditions has an efficiency of 88.5%. The armature circuit resistance and field circuit resistance are 0.096 Ω and 936 Ω respectively. Calculate the following: (a) the armature current; b) the output torque (c) the mechanical developed power (d) the mechanical developed torque; and, e) the external resistance required in series with the armature to limit the starting torque to 200 % of rated torque. If the load...
A 12-pole, brushless, DC motor has a no-load speed of 5000rpm and a stall torque of 50 in-oz when operating at rated voltage of 60V. Testing shows that no-load speed and stall torque vary linearly wi...
A 12-pole, brushless, DC motor has a no-load speed of 5000rpm and a stall torque of 50 in-oz when operating at rated voltage of 60V. Testing shows that no-load speed and stall torque vary linearly with applied voltage. Also, with a constant applied voltage the speed decreases linearly as delivered torque increases. Calculate the following: Torque that the motor delivers at 2000 rpm when operated at rated voltage. T a) b) Fundamental frequency of the applied voltage waveform at this...
p Hay question ADC motor delivers power to a machine through a gear drive involving an...
p Hay question ADC motor delivers power to a machine through a gear drive involving an idler gear, as shown in the figure. Under normal operating conditions, the motor runs at a speed of n = 3000 rpm and produces a torque of T10.2N m. The number of teeth in the pinion, idler and your are yven in the figure. 1. Determine the total transmission ratio of the gear drive: 2. Calculate the speed of the idler gear (in units...
1. Torque Questions If the co-energy of a synchronous machine is expressed as a. where K, lar-la, liu, and δ, are constants associated with the operating condition (i.) What is the expression for...
1. Torque Questions If the co-energy of a synchronous machine is expressed as a. where K, lar-la, liu, and δ, are constants associated with the operating condition (i.) What is the expression for torque? (i.) Find the synchronous speed, as, at which constant torque will be produced. Hint:w t 0m The general expression for torque in an induction machine is T =-K-, sin(&J. For an induction motor, it can be shown that δ,--(90° + ø2) where O2 is the power...
14. The following details are known about a 200 hp, 500 V, 435 rpm de shunt motor: full-load current is 330 A, insulation class is H, weight is 3400 kg, external diameter of the frame is 915 mm a...
14. The following details are known about a 200 hp, 500 V, 435 rpm de shunt motor: full-load current is 330 A, insulation class is H, weight is 3400 kg, external diameter of the frame is 915 mm and length of the frame is 1260 mm. If the motor is running at full-load, calculate: a. the total losses and efficiency. b, the approximate shunt field exciting current if the shunt field causes 15% of the total losses. the value of...
4. A 50-kW, 460-V, 50-Hz, two-pole induction motor has a slip of 5 percent when operating...
4. A 50-kW, 460-V, 50-Hz, two-pole induction motor has a slip of 5 percent when operating a full-load conditions. At full-load conditions, the friction and windage losses are 700 W, and the core losses are 600 W. Find the following values for full-load conditions: (10 pts.) (a) The shaft speed in rpm (b) The output power in horse power (c) The load torque in lb-ft (d) The induced torque in lb-ft (e) The rotor frequency in hertz
#1 plz HW24 、049 wish to design a pumping system with an effective head (total dynamic head - TDH is to be 90 gpm....
#1 plz
HW24 、049 wish to design a pumping system with an effective head (total dynamic head - TDH is to be 90 gpm. a. If the system is lossless what is the required input power in Watts? b. If the system has an efficiency of 58% what is the input power in Watts? 2. Recall the system layout at the top of Page 1 in WS24. The input electrical power is 2600 W. The motor is an induction motor...
3. The manufacturers rating for a centrifugal pump shows that the pump delivers 160 gpm at...
3. The manufacturers rating for a centrifugal pump shows that the pump delivers 160 gpm at 80 ft of head when the pump speed is 3000 rpm. This rating is for the best operating point of the pump: the efficiency at this point is 59 percent. (be careful with units) (a) Calculate the specific speed of the pump. (b) What is the horsepower required to operate the pump at the manufacturers rating? (c) A 1.8 horsepower motor with a speed...
Please show step for step and, all equations used. Thank you. 1) For the power supply circuit: 120v Dc. 6Oh time values on your sketch E. hat is the DC load Current? 7 C. What is the average curre...
Please show step for step and, all equations used. Thank
you.
1) For the power supply circuit: 120v Dc. 6Oh time values on your sketch E. hat is the DC load Current? 7 C. What is the average current in each diode? I = D. what is th peak current in each uld be reqLlired to redLICe the E. What minimLm va l Lle.Pf capac i tor 120v 7 1 For the power suipply circuit: ツー time values on Your...
A 30 hp, 240 V, 1150 rpm de shunt motor operating at rated conditions has an efficiency of 88.5%. The armature circuit resistance and field circuit resistance are 0.096 Ω and 936 Ω respectively. Calculate the following: (a) the armature current; b) the output torque (c) the mechanical developed power (d) the mechanical developed torque; and, e) the external resistance required in series with the armature to limit the starting torque to 200 % of rated torque. If the load...
A 12-pole, brushless, DC motor has a no-load speed of 5000rpm and a stall torque of 50 in-oz when operating at rated voltage of 60V. Testing shows that no-load speed and stall torque vary linearly with applied voltage. Also, with a constant applied voltage the speed decreases linearly as delivered torque increases. Calculate the following: Torque that the motor delivers at 2000 rpm when operated at rated voltage. T a) b) Fundamental frequency of the applied voltage waveform at this...
p Hay question ADC motor delivers power to a machine through a gear drive involving an idler gear, as shown in the figure. Under normal operating conditions, the motor runs at a speed of n = 3000 rpm and produces a torque of T10.2N m. The number of teeth in the pinion, idler and your are yven in the figure. 1. Determine the total transmission ratio of the gear drive: 2. Calculate the speed of the idler gear (in units...
1. Torque Questions If the co-energy of a synchronous machine is expressed as a. where K, lar-la, liu, and δ, are constants associated with the operating condition (i.) What is the expression for torque? (i.) Find the synchronous speed, as, at which constant torque will be produced. Hint:w t 0m The general expression for torque in an induction machine is T =-K-, sin(&J. For an induction motor, it can be shown that δ,--(90° + ø2) where O2 is the power...
14. The following details are known about a 200 hp, 500 V, 435 rpm de shunt motor: full-load current is 330 A, insulation class is H, weight is 3400 kg, external diameter of the frame is 915 mm and length of the frame is 1260 mm. If the motor is running at full-load, calculate: a. the total losses and efficiency. b, the approximate shunt field exciting current if the shunt field causes 15% of the total losses. the value of...
4. A 50-kW, 460-V, 50-Hz, two-pole induction motor has a slip of 5 percent when operating a full-load conditions. At full-load conditions, the friction and windage losses are 700 W, and the core losses are 600 W. Find the following values for full-load conditions: (10 pts.) (a) The shaft speed in rpm (b) The output power in horse power (c) The load torque in lb-ft (d) The induced torque in lb-ft (e) The rotor frequency in hertz
#1 plz
HW24 、049 wish to design a pumping system with an effective head (total dynamic head - TDH is to be 90 gpm. a. If the system is lossless what is the required input power in Watts? b. If the system has an efficiency of 58% what is the input power in Watts? 2. Recall the system layout at the top of Page 1 in WS24. The input electrical power is 2600 W. The motor is an induction motor...
3. The manufacturers rating for a centrifugal pump shows that the pump delivers 160 gpm at 80 ft of head when the pump speed is 3000 rpm. This rating is for the best operating point of the pump: the efficiency at this point is 59 percent. (be careful with units) (a) Calculate the specific speed of the pump. (b) What is the horsepower required to operate the pump at the manufacturers rating? (c) A 1.8 horsepower motor with a speed...
Please show step for step and, all equations used. Thank
you.
1) For the power supply circuit: 120v Dc. 6Oh time values on your sketch E. hat is the DC load Current? 7 C. What is the average current in each diode? I = D. what is th peak current in each uld be reqLlired to redLICe the E. What minimLm va l Lle.Pf capac i tor 120v 7 1 For the power suipply circuit: ツー time values on Your...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago