monthly cost of running the motor – including that motor’s share of demand charges and taxes as well as its kWh consumption. In our example, if the average cost of kWh is 11.2 cents, then the cost of running this 20HP motor would be 4230 x 0.112, or $474 per month.
How is motor running cost calculated?
The equation is W = AV(sqrt 3) where A is amperes, V is volts, and sqrt 3 is the square root of 33 (about 1.73). W is the power consumption in watts. For example, if the electric motor uses 50 amps at 240 volts, the wattage is 50 x 240 x 1.73, or 20,760 watts.
How much does it cost to run a 5hp electric motor?
1 Horsepower is equal to 745.7 watts of electrical power, so in theory a 5HP motor operating at 100% efficiency will consume about 3.728kW of power. In one hour, it will use 3728.5 kilowatt-hours. Of course, no motor is 100% efficiency, so the motor will actually consume somewhat more power than this.
How much power does a 100 hp motor use?
This 100-horsepower centrifugal pump motor, if fully loaded, should be consuming nearly 80,000 watts (80 kW).
How much does it cost to rewind an electric motor?
A new EE motor costs around $8,800. Cost of a “typical” rewind is $2,600.9 мая 2013 г.
How much electricity does a 30 hp motor use?
Designed power capacity of a motor 30 HP,at 415 V, 3 phase power factor 0.8 (assumed). Full load current is , one HP is 745 w, 30 HP is 30 x 745 =23.35 kW, W = V x I x pf, 23.35 = 415 x I x 0.8, I = 23.35 divided by 415 x 0.8 = 67 amps.
How much electricity does a 1hp motor use?
1 unit = 1 kilowat-hour, i.e. when an electrical appliance consumes 1 killowat of Power for one hour . Here, we have a 1 HP motor. So, 1 HP for 24 hour = 746×24= 17904 Watt-hour which is equal to 17904/1000= 17.904 units.
How much power does a 2 hp motor use?
How many watts does a 1 hp electric motor use?HorsepowerWattsRounded Watts1 hp745.699872 W746 Watts2 hp1491.399744 W1491 Watts3 hp2237.099616 W2237 Watts4 hp2982.799488 W2983 Watts
How much electricity does a gate motor use?
In standby, an electric gate system will use about 100 watts per day. With electricity costing around 15p per KWh this translates to 1.5p per day. When the gates are operating, they will use up to about 700W, but this is only for about 20 seconds in each direction.
How do you calculate the power of a motor?
By taking the voltage and multiplying it by the associated current, the power can be determined. A watt (W) is a unit of power defined as one Joule per second. For a DC source the calculation is simply the voltage times the current: W = V x A.
How long can an electric motor run continuously?
You should anticipate, given proper attendance, that the motor can run continuously for the life of its brushes, which should be in the range of six months to a year. Presuming that the motor is too small to have its brushes changed by a trained electrician while running.
How many amps is 3 horsepower?
Here are the Full Load Amp (FLA) values for typical 230VAC and 480VAC 3 phase motors.Motor horsepowerFull load amps 230VACFull load amps 460VAC22.214.171.12463.0394.55157.5Ещё 17 строк16 мая 2020 г.
How many amps does a 1.5 hp motor draw?
AC Motor Full Load AmperesHP200 Volts550-600 Volts1/22.50.93/43.71.3126.96.36.199.92.4Ещё 23 строки
Can you fix a burnt out electric motor?
If an electric motor operates at too high a voltage, excess current flowing through the windings can cause them to become hot and burn out. While it is normally not practical to repair small, direct current (DC) motors that have burned out, other motors can be repaired by rewinding.
How many times can a motor be rewound?
The short answer is that an electric motor can be repaired indefinitely. There is a caveat, however: there is a limit to how many times you can simply recondition a motor as repeated varnish dips eventually will require a burnout and rewind. Let’s take a look at the process to better understand the limitations.
What causes an electric motor to stop working?
Stressful mechanical, environmental, and electrical operating conditions can all cause electric motor failure. Electrical failures are winding failures caused by an open contactor, bad connection, blown fuse, excessive heat, electrical overload, or broken power lines.