How to calculate the electricity consumption of electrical appliances? How to calculate the electric

How to calculate the electricity consumption of electrical appliances: no matter what kind of appliance, manual orNameplatesThe power (watts, represented by the letter w), usually what we call the electricity consumption is how many kilowatts of electricity, one kilowatt-hour according to the standard, the concept is the power of 1000 (W) electrical appliances, the electricity consumed in an hour.

In this problem, w=p*t, where w is the work, which is the electrical energy consumed; p is power; t is time. 350W*1H=350Wh=degree.

Calculation formula: 1kw 1 hour = 1 kWh of electricity 350w 1000w = hour = kWh).

The international standard for electrical energy is "kilowatt hours, but in colloquial language it is generally called "degrees". This unit of electrical energy, which is actually similar to temperature, is an artificially defined quantity. At temperature, mix the ice water mixture.

The temperature is specified as 0, and this is used as a standard to measure other temperatures.

Electric energy is also artificially made a similar regulation, looking at the unit of electric energy can also be seen - an electrical appliance with a power of 1000 watts, working for one hour, consumes 1 kilowatt-hour of electricity.

The calculation method of hourly power consumption of electrical appliances: power consumption = power (w) x time (h) 1000, and the result unit of kWh is degrees. Power affects power consumption, and a kilowatt electrical appliance consumes 1000W hours of electricity for one hour of work.

If the power of the TV is 300W, the power consumption of one hour is: 300W 1H 1000, that is, the kilowatt-hour of electricity. Power refers to the amount of work done by an object per unit of time, i.e., power is a physical quantity that describes how fast or slow work is done.

The amount of work is constant, and the shorter the time, the greater the power value. The formula for finding power is power = work time. Power indicates the physical quantity of how fast or slow the work is done.

The work done per unit of time is called power and is denoted by p. Therefore, the power is equal to the scalar product of the force and the velocity of the point where the object is stressed.

Calculation method of electricity consumption of electrical appliances:

Electricity consumption (kWh) = electrical power (kW) Actual use time (hours) Electricity cost (yuan) = electricity consumption (kWh) Electricity cost ** (yuan) So according to the above formula, you can know that the power consumption of each electrical appliance must be known, simply put, add the power of all electrical appliances together, and then multiply by the time you use the electrical appliances to get the power consumption you want.

At the back of each appliance is a "nameplate" with a number such as 550W (W) or 350W (W) to indicate the amount of electricity it needs to consume per hour. For example, an electrical appliance is 500w (watts), which means that it is kilowatt-hour of electricity per hour. Then its 24-hour electricity consumption is 12 kilowatt-hours of electricity.

Calculated according to the formula: time = 1000 power, electricity consumption = 1 time.

For example: the power of an electrical appliance is 2000w, according to the formula: time = 1000 power, find the time 1000 2000 = hours, that is, one kilowatt-hour of electricity. Then, according to the formula hourly electricity consumption = 1 time, the hourly electricity consumption is found to be 1 kWh.

The power consumption is related to the power of the electrical appliances purchased, and it is usually said that 1 kilowatt-hour of electricity is the power consumption of an electrical appliance with a power of 1000 watts for 1 hour, so it is easier to calculate the power consumption according to the formula.

Calculation method of electricity consumption of electrical appliances:

No matter what kind of electrical appliances, the manual or nameplate will be marked with power (watts, represented by the letter W), usually what we call the electricity consumption is how many kilowatts of electricity, one kilowatt-hour according to the standard, the concept is the power of 1000 (W) electrical appliances, the amount of electricity consumed in an hour.

Electricity consumption is calculated as follows:

Electricity consumption (kW·h) Power (W) 1000x time (hours) For example, if the power of an air conditioner is 1500W, its electricity consumption for 1 hour is:

1500 1000x1 1 5 (kWh).

However, because the air conditioner will shut down when it reaches the set temperature, this calculation is not accurate, and the calculated electricity consumption is accurate only by removing the downtime in the middle.

It is accurate to calculate the electricity consumption of the rice cooker, for example, the electricity consumption of a 750W rice cooker for half an hour:

750 1000x0 5 0 375 (kWh).

Calculated according to the formula: time = 1000 power, electricity consumption = 1 time. Such as:

The power of an electrical appliance is 2000w, according to the formula: time = 1000 power, find the time 1000 2000 = hours, that is, one kilowatt-hour of electricity. Then, according to the formula, the hourly electricity consumption = 1 time is dismantled, and the hourly electricity consumption is 1 kWh.

The power consumption is related to the power of the electrical appliances purchased from the stove, and the electricity consumption of 1 kilowatt-hour is usually 1000 watts of electrical appliances, so it is easier to calculate the power consumption according to the formula. The electricity cost incurred is easy to calculate.

The rated power of the electrical appliance is the power of the electrical appliance when it is working normally, and the value is the rated voltage of the electrical appliance multiplied by the rated current. If the actual power of the appliance is greater than the rated power, the appliance may be damaged; If the actual power is less than the rated power, the electrical appliance cannot operate normally.

Under normal operating conditions, the output power of the power equipment or the input power of the energy-consuming equipment is the power that the machine produced by the factory can achieve during normal operation, therefore, the rated power of the machine is certain.