Is it true that all changes have to be based on the power tariff
1. Actual power factor = total active energy / sqrt (total reactive energy square + total active energy Square)
2. Through the actual power factor and force regulation coefficient standard, look up the table to get the adjustment proportion, which can be found in the network force regulation comparison table
3. Step 3: force regulation electricity charge = (basic electricity charge + electricity charge) × Adjustment ratio
you also need to provide the power adjustment coefficient and electricity tariff (customer price)
The basic tariff is calculated according to the customer's transformer capacity or maximum demand and the basic tariff approved by the state
power regulation fee generally refers to power regulation fee, which refers to the relevant electricity fee charged by the power supply company according to the average power factor calculated by the active and reactive power used by the customer in a period of time (such as a month or a year)
there are two ways to calculate and collect the basic electricity charge, which can be calculated and collected according to the transformer (rated) capacity or the maximum demand. If the customer chooses to charge the basic electricity charge according to the maximum demand or transformer capacity, it shall be specified in the power supply and consumption contract and shall not be changed within the validity period of the contract
the charging quantity of the power adjustment charge on the electricity bill is the percentage of the total electricity charge (i.e. "adjustment rate") according to the power factor. This "adjustment rate" is different according to the corresponding power factor. If the power factor is high, the charge rate will be low, and if the power factor is low, the charge rate will be high. This rate may vary slightly from place to place. Please refer to the local electricity policy
extended data:
basic electricity charge standard of transformer:
1. According to capacity: the basic electricity charge standard for proction of synthetic ammonia, electric furnace calcium magnesium phosphate fertilizer and small and medium chemical fertilizer is 14 yuan / KVA / month; The basic electricity charge standard of other large instrial customers is 18 yuan / KVA / month
2. According to demand: the basic electricity charge standard for the proction of synthetic ammonia, electric furnace calcium magnesium phosphate fertilizer and medium and small chemical fertilizers is 21 yuan / kW / month; The basic electricity charge standard for other large instrial customers is 27 yuan / kW / month
Suppose that the active power is a, the reactive power is B, and the power factor is cos φ， Then
monthly average power factor: cos φ= A / root sign (square of a + square of B)
the power factor standard requires 0.9
power factor reward and penalty regulations: when the power factor is lower than the standard by 0.01, the penalty will be increased by 0.5% from the total electricity charge, which will be increased to 1% for each level lower than 0.7 and 2% for each level lower than 0.65; For every 0.01 higher than the standard, 0.15% of the total electricity charge will be awarded, and so on, the top will be 0.75%
the power factor adjustment meter with 0.90 as the standard value in Table 1 reces electricity charges and increases electricity charges actual power factor monthly electricity charges decrease% actual power factor monthly electricity charges increase% actual power factor monthly electricity charges increase% 0.900.00 0.89 0.5 0.76 7.0 0 0.91 0.15 0.88 1.0 0 0.75 7.5 0.92 0.30 0.87 1.5 0.74 8.0 0 0 0.93 0.45 0.86 2.0 0 0 0.73 8.5 0.94 0.6 0.85 2.5 0.72 9.0 0.95 ~ 1.00 0.75 0.84 3.0 0.71 9.5 0.83 3.5 0.70 10.0 0 0.82 4.0 0 0.69 11.0 0 0.81 4.5 0.68 12.0 0 0.80 5.0 0 0.67 13.0 0 0.79 5.5 0.66 14.0 0 0 0 0.78 6.0 0 0 0.65 15.0 0 0 0 0 0.77 6.5 power factor from 0.64 or below, each decrease of 0.01, the electricity charge increases by 2%. According to relevant regulations, the percentage of total electricity charge penalty is 19%
all users who adjust electricity charge with power factor should install reactive watt hour meter. The monthly average power factor is calculated according to the monthly practical active power and reactive power
all users who implement power factor adjustment should be equipped with reactive power meter with anti overturning device. The monthly average power factor is calculated according to the practical active power and reactive power< br />cos δ=? From cos δ Cos was found in the control table δ The value of
the calculation of power factor shall be based on two decimal places, and then round off after two decimal places, and then check the corresponding power factor to adjust the proportion of electricity charge through the power factor adjustment meter< Power factor adjustment tariff = (basic tariff of current month + tariff of current month) × The proportion of power factor adjusted tariff (%)
3). For users who implement power factor adjusted tariff, if the lighting meter is connected in series with the master meter (i.e. a set of meters), the lighting quantity will participate in the calculation of power factor, and the lighting electricity will participate in the calculation of power factor adjusted tariff; If the lighting meter is connected with the master meter (i.e. not set), the lighting power is not included in the power factor calculation, and the lighting electricity charge is not included in the power factor adjustment
4). The power factor is calculated by taking two decimal places and rounding them (for example, 0.855 is 0.86, 0.754 is 0.75);
P = (696-518) * 30 = 5340 * 1.05 = 5607
q = (353-256) * 30 = 2910 * 1.05 = 3055.5
1.05 = 1 + 5%, 5% is a simple calculation principle of variable and line loss
apparent power = ((5607) square + (3055.5) square) root
= 6385.5
power factor = P / S = 5607 / 6385.5 = 0.878
that is to say, if the power factor is less than 0.9
according to different requirements of different places, the penalty standard is different
for example, according to our local requirements, the electricity charge is increased by a multiple of 0.1 between 0.9 and 0.8,
assuming that the electricity charge is 0.5 yuan per time, the total electricity charge is
5607 * 1.1 * 0.5 = 3083.85 yuan
3083.85 - (5607 * 0.5) = 280.35 yuan
look, what a injustice!
Electricity charge: basic electricity charge, catalog electricity charge is the electricity charge copied on the meter,
basic electricity charge: capacity charge for transformer above 315KVA.
line loss: line loss
variable loss: transformer loss.
total electricity charge = basic electricity charge + catalog electricity charge + line loss + variable loss electricity
metering device should be installed at the property right demarcation point. The line loss and transformer loss generated at the load side of the demarcation point have been recorded in the metering device, and the power consumption = end code of this month (period) - last (period) at least = line code * Pt ratio * CT ratio = power consumption of the current month (period), unit: kW. H. The electricity consumption of the current month (period) multiplied by the unit electricity price is equal to the electricity charge
the line loss is rated. There is a power supply contract every year, which says that it is determined according to the capacity, whether it is a special line, and then the monthly electricity consumption multiplied by the fixed percentage is the line loss
the reactive line loss is calculated by multiplying the total reading of reactive power on the meter and the total reading of reactive power reverse by the multiplying factor. The total reactive power must be less than the total active power, otherwise the power factor is too low, and the power adjustment charge and additional charge will be charged
extended data:
the part of electricity charge calculated according to the actual electricity consumption. The cost of electricity consumption is to compensate the part of variable cost expenditure of power enterprises which changes with the change of power generation and supply. For small consumers such as residents, the electricity charge is the total electricity charge they should pay
for the users who implement the two-part tariff, the electricity tariff is only a part of the payable electricity tariff, and the basic electricity tariff is the total payable electricity tariff. The electricity charge is calculated based on the reading of the active energy meter in the charging energy metering device installed by the power enterprise at the user's place
since the meter count is a cumulative value, the difference between the final reading and the initial reading should be taken into account when calculating the power consumption within a specified period. When the current transformer and the voltage transformer are installed in the electric energy metering device, the transformation ratio of the current transformer and the voltage transformer should be multiplied respectively
the transformation ratio of current transformer (or voltage transformer) is the ratio of rated current (or voltage) of primary winding and secondary winding of current transformer (or voltage transformer)
if the charging energy metering device of high-voltage users is installed on the low-voltage side of its special transformer, it is called high supply and low quantity users when implementing the specified electricity price on the high-voltage side. For the electricity consumption of such users, the active power loss part of the copper iron loss of the special transformer for users should be included in the electricity consumption to calculate the electricity rate and electricity charge