answersLogoWhite

0

generally rating means the condition when the machine can give maximum efficiency without being overheated .In Transformers and generators it is decided by core as well as copper loss(flux proportional to supply voltage,current proportional to copper loss).so both are rated in kVA whereas motors are rated as maximum output they can deliver i.e kW.

User Avatar

Wiki User

14y ago

What else can I help you with?

Continue Learning about Electrical Engineering

What is the power rating of 500 amperes welding machine?

Welding is done with a high current and low voltage. The voltage of a 500 amp welder might be 10 v so the power rating in that case would be 5000 watts.


What is power rating of transistor?

what is the power rating of a transister


What is maximum power rating?

Maximum power rating describes the maximum power at which a device can operate without reaching an excessive temperature. For example, in the case of a resistor, if its maximum power rating is exceeded, then it may burn out.


How much amperage does a gas clothes dryer draw?

Check the nameplate rating on the door or door frame of your washer, it should tell you the amp rating or the kw rating of the machine. If it only has the KW rating of the machine, simply divide the KW rating by the voltage of the receptacle and it'll give you the current (ampere) rating. Typically, a modern washing machine will draw approximately 7-12 amps. However, anticipate a higher amperage when starting the machine as the machine will draw 1.5X the rated current to start the machine (starting current). Regardless of the amp rating, the NFPA-70 (National Electrical Code) requiresa 20 Amp fuse or circuit breaker; and the circuit for the washing machine must be on its own, dedicated circuit.


What does the power rating of a transformer imply?

Knowing the power rating of a transformer will help an operator use the transformer within its design limitations with regard to heating of the windings and their insulation.

Related Questions

What physical characteristic determines the power rating of a resistor?

The size of a resistor is a physical characteristic that determines its power rating.


How long will it take to take machine with a power rating of 60 wants to do 360 J of work?

How long will it take a machine with the power rating of 60 W to 368 rules of work


If it took 5 seconds to lift the crate using a machine what was the power rating of the machine?

We have no way of knowing what power the machine was rated for, but with the information given in the question, we can calculate the power it delivered during the crate-lift: It was (1.96) x (mass of the crate in kilograms) x (distance the crate was lifted in meters) watts.


How do you take welding estimation?

Cost of Welding machine Welding machine amperage & power rating Cost of power/KW Cost of labour/shift Machine Utilisation factor Cost of Electrodes and % Efficiency


Can a c-pap machine run on a power inverter?

Yes, provided the power inverter has a high enough power rating (wattage) for the CPAP device.


What is the power rating of a machine if it took 5 seconds to lift a 50kg crate 10 meters?

The power rating of the machine can be calculated using the formula: Power = Work / Time. The work done is equal to the force applied (50kg * 9.8 m/s^2) multiplied by the distance (10 meters). Therefore, the power rating can be calculated as (50kg * 9.8 m/s^2 * 10m) / 5 seconds.


The Rogue System Sensor determines if a machine is a rogue system?

The Rogue System Sensor determines if a machine is a rogue system?


The Rogue System Sensor determines if a machine is a rogue system.?

The Rogue System Sensor determines if a machine is a rogue system?


What is the power rating of 500 amperes welding machine?

Welding is done with a high current and low voltage. The voltage of a 500 amp welder might be 10 v so the power rating in that case would be 5000 watts.


How is a machine's power rating related to its rate of doing work on an object?

Power can be defined as work done (force * distance) / time taken. Since distance / time is velocity, power could be defined as force overcome * velocity, Pedalling a 70 kg rider up a 10 degree incline, the maximum speed obtained is 8 metres per second. The force due to gravity acting against the rider is: sin 10 degrees * 70 * 9.81 = 119 newtons (approx) So force overcome * velocity = 119 * 8 = 952 watts (maximum power rating) Note: Rolling resistance has been ignored. Air resistance has also been ignored.


What is power rating of transistor?

what is the power rating of a transister


What does the power rating of an appliance mean?

what is the power rating of energy