How to look at the electricity consumption of the factory How to calculate the electricity consumpti

At present, the formula for calculating the average power factor of industrial electricity used by the state is as follows:

Average power factor of total active electricity (open square root (square of total active electricity + square of total reactive electricity)).

The power factor is a measure of the power efficiency of electrical equipment (intermediate transmission equipment of the power grid, distribution equipment, etc., all of which can be regarded as electrical equipment in a broad sense).

The original definition of power factor was:

Power Factor Active Power Apparent power, the value is: 0, the closer it is, the higher the power factor, the higher the power efficiency of the equipment.

A large number of inductive equipment (transformers, motors, etc.) in the power grid need to establish a working magnetic field, so a large amount of inductive reactive power is required, resulting in a low power factor of the power grid.

Capacitor operation requires the establishment of an electric field and also requires reactive power, but it is capacitive reactive power, and its phase is exactly the opposite of the inductive reactive power. Therefore, the capacitive reactive power of the shunt capacitor can compensate (offset) the inductive reactive power of the motor, transformer, etc., so that the reactive power demand of the electrical equipment on the power grid is reduced, and the power factor is improved. This is the principle of capacitance compensation.

You are the peak and valley electricity, the peak is the electricity of your factory during the peak period of the power grid load, the electricity cost of this time period is the highest, the valley is the electricity used by the power grid when the load is light, generally in the zero morning section, this electricity fee is lower, the flat is the electricity when the grid load is between the peak and valley, and the electricity fee will also be in between, the purpose of installing this kind of meter is to encourage more electricity in the valley section and less electricity in the peak section to ease the pressure on the power grid. Ask your local power supply department for the specific time period.

The electricity consumption of electrical equipment can be calculated according to its rated power (the power indicated on the nameplate of the equipment).

Calculation formula: Electricity consumption = power (kw) * service time (h), the power unit is kilowatts, and the unit of use time is hours.

For example, if the power of a lamp is 100W, that is, it will be used for 5 hours, and the calculation method is: , that is, the power consumption is kWh.

Quantity of electric charge indicates the amount of charge carried by an object. Generally speaking, the number of charges is called the electric power shield, which is represented by the symbol Q, and the unit is the coulomb (sign) (the symbol is c), and the coulomb is a large unit.

Without confusion, the amount of charge can simply be called an electric charge.

According to the total electricity cost = basic electricity price, electricity capacity, electricity price, electricity consumption. In China, the calculation of industrial electricity consumption is based on the two-part electricity price method, and the power factor is implemented on the basis of it.

Adjust the electricity tariff method, and some will have peak and valley electricity prices.

Preferential treatment of additional additional parts such as electricity prices and additional fees. The two-part electricity price method consists of two parts: the basic electricity price and the electricity price.

Extended information: 1. Definition of industrial electricity:

1. Most of the industrial electricity uses three-phase voltage.

Such as three-phase 380vac, three-phase 660vac, etc.

2. The difference between industrial electricity and residential electricity: industrial electricity mostly uses three-phase voltage, while civil electricity uses single-phase 220VAC to supply power to residents, **different, industrial electricity is high, in the peak period of electricity consumption, often due to excessive load and power failure, and the voltage of industrial electricity is often higher than that of residential electricity, and it is easy to burn out the electrical appliances at home, which has great potential safety hazards. In addition, if it is difficult to restore power for a considerable period of time after a power outage!

2. Classification of electricity consumption:

1. State Grid Corporation of China.

According to the nature of electricity consumption of users, it is divided into four categories: residential electricity; general industrial and commercial electricity; electricity consumption for large industries; Electricity for agricultural production. Some cities have also divided the categories of non-residential lighting electricity consumption, and there are also separate divisions for agricultural drainage and irrigation.

There are more detailed divisions in each category, and they all have different electricity prices, and some Qiaoxiao categories also have preferential electricity prices.

2. The electricity consumption of the same level of voltage is different in nature, the category is different, and the electricity price is also different. For example, the same 220V voltage electricity, used for residential lighting, is residential electricity, and used to open a hair salon, it can only be regarded as commercial electricity, and its electricity price will be one percent higher. The difference between residential electricity and industrial electricity consumption is based on the different nature of their electricity consumption, not according to the difference in voltage.

3. Chinese Standards:

In accordance with China's "Power Supply Business Rules".

Article 54 stipulates: in the power system.

Under normal conditions, the allowable deviation of the power supply voltage supplied by the power supply enterprise to the user's receiving end is:

For the power supply of kilovolts and above, the absolute value of the positive and negative deviation of the voltage.

The sum does not exceed 10% of the rated value;

Three-phase power supply of kilovolts and below.

, 7% of the rated value;

For single-phase power supply, it is +7% and 10% of the rated value.

In the abnormal condition of the power system, the maximum allowable deviation of the voltage at the receiving end of the user should not exceed 10% of the rated value. If the power factor of the user's electricity consumption does not reach the provisions of Article 41 of these rules, the voltage deviation of the receiving end shall not be subject to this limit. It can be seen that 380V belongs to "10 thousand volts and below three-phase power supply, which is 7% of the rated value"; That is, the voltage of the 380V power supply system should be between 380 (1-7%) V and 380 (1+7%) V.

Your calculation is correct, but there are a few things to keep in mind:

The rated current of the total empty opening of the electrical box is only a reference value, in fact, you need to know the power of each equipment in order to accurately calculate the power consumption.

The power of the device should be marked on the device, you can check the manual or logo of the device to get the relevant information.

If you really can't get a specific value for the power of your equipment, you can consider using some estimation methods to calculate the power you use. For example, you can refer to the average power of similar devices to make an estimate, or ask the equipment manufacturer for information. However, this method can only be used as an approximate estimate, and there may be some errors.

In summary, it is recommended that you obtain the power information of each device as much as possible so that you can accurately calculate the power consumption.

Based on the information you provide, the total power of the plant can be estimated by the total air opening current rating, which is calculated as follows:

First, you need to determine your grid voltage, such as 380V or whatever.

Then, according to the rated current of the total empty opening of the electrical boxes in the three workshops (i.e., 200A, 125A and 40A), their sum is calculated, that is, 200A+125A+40A=365A.

Finally, the pants are thick, and the total electricity power of the plant in Hu Crack Town is calculated according to the following formula:

Total power source (unit: kilowatt, kw) = grid voltage (unit: volts, v) Total empty rated current of the electrical box (unit: amperes, a) 1000

Where, is the coefficient of three-phase electricity, which is used to convert current into power.

For example, if the grid voltage you provide is 380V, the calculation formula is as follows:

Total power (kW) = 380V 365A 1000 kW

Therefore, based on the data you provide and the above calculations, you can estimate that the total power consumption of your plant is about kw. Please note that this result is only an estimate, and the actual power consumption needs to be calculated based on factors such as the actual equipment's power, usage, and power factor.

Plant electricity consumption Total plant electricity consumption Total power generation 100%.

Note: The electricity consumption of the main plant is the sum of the daily electricity consumption (kWh) of several plant power supplies minus the non-productive electricity consumption connected to the factory bus, and the total power generation is the sum of the daily power generation of several generators in the plant (kWh), and the calculated plant electricity consumption rate is the daily plant detriment electricity consumption rate, and the monthly plant electricity consumption and monthly power generation are calculated as the monthly plant electricity consumption rate.

The power consumption rate of a power plant refers to the percentage of power consumption and power generation per unit time. Generally, it is divided into comprehensive plant electricity consumption rate and direct plant electricity consumption rate.

Comprehensive plant electricity consumption rate = (generator active power - on-grid electricity) generator active power;

Direct plant electricity consumption rate = high plant transformer active power generator active power.

wd=wcy_wkc (4)

Where: lfcy – the rate of electricity consumption of the power plant, %

wd - power consumption of power generation, kw·h;

wf - power generation during the statistical period, kw·h;

wcy - electricity consumption of the plant during the statistical period, kw·h;

wkc - the electricity consumption of non-production plants that should be deducted during the statistical period, kw·h.

The charge carried by any charged body is always equal to an integer multiple of a certain minimum charge, and this minimum charge is called the primitive charge, also known as the element charge, which is represented by e, 1e=, and e= c can be taken in the calculation. It is equal to the amount of electricity carried by an electron, and it is also equal to the amount of electricity carried by a proton.

The amount of charge carried by the charge of each element is 1c. The relationship between the forces and the amount of charges: the force f is proportional to the product of q and q.

Under laboratory conditions, the electrostatic properties of the fabric after being charged in the form of friction are evaluated, i.e. the charge surface density of the fabric is tested. The sample is pretreated under the conditions specified in the standard, put into the drum friction machine for rolling friction, and generate static electricity, implement the GB12014-2009 anti-static work clothes standard, and deliver the friction sample to the LFY-403 triboelectric charged charge test, and read out the charge of the sample through the electrostatic potentiometer.

The formula for calculating the power consumption rate of the plant is: the power consumption rate of the plant The total power consumption of the plant is 100%, and the power consumption rate of the power plant refers to the percentage of the power consumption of the plant and the power generation per unit time, which is generally divided into the comprehensive power consumption rate of the plant and the direct power consumption rate of the plant.

The electricity consumption of the main plant is the daily electricity consumption of several plant power supplies (kW Huai wide.

The sum minus the non-productive electricity consumption connected to the bus of the plant, the total power generation is the sum of the daily power generation (kWh) of several generators in the whole plant, and the calculated power consumption rate of the plant is the daily power consumption rate of the plant, and the monthly power consumption and monthly power generation are calculated as the monthly plant power consumption rate.

(1) Calculate the electricity consumption. First, calculate the index and power value of the active meter (including peak, valley, and non-peak valley), reactive power meter, and lighting meter of the current month from the meter reading record. If the lighting meter is not installed, the electricity consumption of non-residential lighting should be reduced according to the fixed ratio or quantitative value, and the remaining electricity is the electricity consumption of large industries.

If it is a high supply and low quantity, the variable loss power should also be added.

2) Calculate the value of the electricity bill.

Electricity cost (RMB) Catalogue electricity price (RMB) Electricity consumption (kWh).

If the user implements the peak-to-valley electricity price, the peak-to-valley electricity fee (yuan) [peak electricity price (yuan kilowatt-hour) peak electricity (kilowatt-hour)] valley electricity price (yuan kilowatt-hour) valley electricity (kilowatt-hour)] non-peak-to-valley electricity price (yuan kilowatt-hour) non-peak-to-valley electricity (kilowatt-hour)].

3) Calculate the basic electricity tariff value. If you are billed according to the capacity of the transformer:

Basic electricity charge (yuan) Transformer capacity (kV·A) Basic electricity price of transformer capacity (yuan kV·A).

If you are billed based on maximum demand:

Basic electricity charge (yuan) Maximum demand meter pointer reading Multiplier The basic electricity price of the maximum demand (yuan kilowatts).

If the actual use of the maximum demand exceeds the application value, the excess part shall be doubled).

4) Calculate the value of the electricity bill.

Electricity tariff value = kilowatt-hour electricity tariff basic tariff.

How to bill the 2292120 kilowatt-hour of electricity used in June.

Summary. The calculation of electricity charges for enterprises is divided into two, one is a unitary system and the other is a two-part system.

In addition to the calculation of the electricity charge, the basic electricity charge is calculated according to the distribution capacity or the maximum demand, and the basic electricity charge is equal to the billable capacity (demand) multiplied by the basic electricity price.

Here is a detailed introduction to the process of calculating the unitary electricity fee for enterprises with high supply and high metering

Enterprise electricity consumption can generally be divided into two situations: high supply and high supply and low meter, no matter which case, enterprise electricity is generally installed with a transformer, so when calculating the amount of electricity, what is the rate of the transformer should be calculated first.

How to calculate the electricity consumption of enterprises.

The calculation of electricity charges for enterprises is divided into two, one is a unitary system and the other is a two-part system. In addition to the calculation of the electricity charge, the basic electricity charge should be calculated according to the distribution capacity or the maximum demand, and the basic electricity fee is equal to the billable capacity (demand) multiplied by the basic electricity price. Here is a detailed introduction to the process of calculating the unitary electricity fee for enterprises with high supply and high metering

Enterprise electricity can generally be divided into high supply and high supply and low gauge two situations, no matter what kind of elimination, enterprise electricity is generally installed with a transformer, so when calculating the amount of electricity, should first calculate what is the rate of the transformer.

How is the electricity bill of the enterprise called for electricity in the enterprise Kai Peichun how to calculate the electrician's home mobile version.

The average power factor of total active power (open square of the total active power + square of the total reactive power)) power factor is a measure of the power efficiency of the power equipment (the intermediate transmission equipment of the power grid, the distribution equipment, the sales of tung equipment, etc., all of which can be regarded as the electrical equipment in a broad sense).