Questions LLC
Login
or
Sign Up
Ask a New Question
Engineering & Technology
Motors
Efficiency Analysis
Determined the overall efficiency of a motor that delivers 2 horsepowers to a load if it's your 7.5amps when connected to 240 V
1 answer
eff= (2(746))/240*7.5= 83 percent
You can
ask a new question
or
answer this question
.
Similar Questions
An electric motor runs at a constant rotational frequency of 3000 r/min and has the load of
75 Nm and a 5,0 Nm extra load of
Top answer:
reherh
Read more.
An electric motor runs at a constant rotational frequency of 3000 r/min and has the load of
75 Nm and a 5,0 Nm extra load of
Top answer:
To solve this problem, we'll need to use the formulas for power, work, and energy, and we'll also
Read more.
A 10kilow walts electric motor is used to raise a 400kg load of bricks to a height of 60meters.The efficiency of the motor
Top answer:
Work = F*h = Mg*h = 400*9.8 * 60 = 235,200 J. = Output energy. Input energy = Output/Eff. =
Read more.
A 3,5kW 240V single-phase motor draws 22,5A from the supply while operating at full load and efficiency of 90°. Calculate
a) The
Top answer:
a) To calculate the power factor, we can use the formula: Power factor = Real Power / Apparent Power
Read more.
A 3,5kW 240V single-phase motor draws 22,5A from the supply while operating at full load and an efficiency of 90°. Calculate
a)
Top answer:
To solve this problem, we can use the following formulas: a) Power factor (PF) = Real power (P) /
Read more.
A 3,5kW 240V single-phase motor draws 22,5A from the supply while operating at full load and an efficiency of 90°. Calculate
a)
Top answer:
a) To calculate the power factor, we need to find the apparent power (S) and the real power (P).
Read more.
an elevator motor lifts a load of 2500 kg a height of 12.0 m in 3.00 seconds. the energy required by the motor to accomplish
Top answer:
The efficiency of a system is defined as the ratio of useful output energy to the input energy. In
Read more.
A small motor draws a current of 1.76 A from a 110 V line. The output power of the motor is 0.20 hp.
(a) At a rate of $0.060/kWh,
Top answer:
Pin=VI=110 * 1.76=193.6W = 0.1936KW. a. C = $0.060/kwh * 0.1936kw * 4h = $0.0465 = 4.65 cents. b. Po
Read more.
determine the overall efficiency of a motor that deliveries 2 horsepower to a load if it draws 7.5 amperes when connected to a
Top answer:
Pi = E*I = 240 * 7.5 = 1800 W. 2hp * 746W/hp = 1492 W. Eff. = Po/Pi = 1492/1800 = 0.829 = 82.9%.
Read more.
A winch is capable of hauling a ton of bricks vertically two stories (6.50 ) in 22.5
If the winch’s motor is rated at 5.00 ,
Top answer:
Please clarify your problem, and show all units.
Read more.
Related Questions
A machine has a velocity ratio of 6 and an efficiency of 75%. Calculate the effort needed to raise a load of 90N
What effort is exerted to lift a load of 150N with a machine having a velocity ratio of 3 and efficiency of 20%
A simple machine has an efficiency of 0.75 & a VR of 12.determine the MA & load that can be moved if an effort of 100N is
A MACHINE HAS A VELOCITY RATIO OF 5 HAS AN EFFICIENCY OF 40.WHAT EFFORT WOULD BE NEEDED TO LIFT A LOAD OF 100N?
The floor of a lorry is 2.0m high. A plank 5m long is used as an inclined plane to raise some load up the lorry. If the
The efficiency of an electric motor is 20 %. When lifting a body 500 J of energy are wasted. What is the useful work done by the
A load of 500N is raised 0.2m by a machine in which an effort of 150N moves 1m.What is a) the work done on the load b)the work
A machine raises a load of 600N through a height of 1.5m when an effort of 100N moves a total distance of 20m.(a) calculate the
If a 65 kilogram load was raised 6 meters in 60 seconds determine the minimum rated wattage of the motor needed to accomplish
A lift of mass 200kg moves upward with a uniform velocity of 4 m/s . if efficiency of motor is 70% then input power of motor is?
