200 meters of three phase four wire, 20 kilowatts to be equipped with how big of wires

20kw load is worth 30A per kW current, if it is a general household appliance lighting and other 6 square is enough, if it is a motor and other loads, you can choose 10 square * 3 + 6 square. Check: 20kw is calculated according to 10kw by dividing the power factor) and then dividing the efficiency efficiency is also calculated by 10kw) = 36 * demand rate = 30a

If working for 4 hours, choose 10 square meters (10 square meters of safe current carrying capacity is about 60a). According to the economic current density of more than 8 hours of work, 30 square, 16 square. Voltage loss calculation of 10 square copper wire resistance per km, reactance; The 16 square copper wire reacts the resistance value per km, and the voltage loss of both is within five percent, which can be used according to the conditions.

Trouble, thanks!

The power factor of three-phase electricity is calculated.

Power Voltage Root No. 3 Power Factor.

200kw/380/。

According to the cable comparison table, considering the characteristics of the cable, the cross-sectional area of the cable should not be less than 150 square meters.

First of all, look at the nature of the load, resistance (heater), motor (water pump).

Look at the material (aluminum wire, copper wire) and type (bare wire, cable, weathering wire) of the wire.

According to the maximum current of the load, note that the motor class is selected according to the starting current.

Generally, 25 square meters of aluminum wire and 10 square meters of copper wire can be used.

16 squares or more of the line. Three-phase alternating current is a form of transmission of electrical energy, referred to as three-phase electricity. A three-phase AC power supply is a power supply composed of three alternating currents with the same frequency, equal amplitude, and 120° phase difference between each other.

The total power of a three-phase electrical appliance is equal to the voltage per phase multiplied by the current per phase multiplied by 3. The voltage between phases is called the line voltage, and the voltage between either two phases is 380V. The voltage between the phase and the neutral point is called the phase voltage, and the voltage of either relative neutral point is 220V.

It is more than 16 square meters! Hope it works for you.

Three-phase four-wire, phase voltage is 220 volts, line voltage is 380 volts, regardless of the load is a star to form a triangle connection, line current = load power phase voltage = 20,000 watts 220 volts = 91 amps. 16 square single-core copper wire can be used, and its current carrying capacity is 106 amps" 91 amps. That is, three-phase four-wire 20 kilowatts require 16 square single-core copper wires.

Normal 20 kilowatts in the air to lay copper core plastic wire 4 square is enough, but if the load is a motor, 6 square should be used, because the starting current should be considered. FYI.

A 20 kW motor requires 6 square cables. According to the formula i=p (u power (w); U-Voltage (380V); COS - power factor (, i - phase line current (a), bring in data p = 20 kW, u = 380 V

If the three-phase four-wire 20kw balanced load, it is recommended to choose 10 square copper wires.

Aluminum core wire can be used 25 square wires, copper core wire can be used 16 square wires.

2o kilowatt three-phase five-wire word with multi-large air open and wire three-phase four-wire 6 square cable, 32A three-phase air open is enough 2A KW, 90A, you can use more than 35mm2 of the line, if the power supply distance is not more than tens of meters or so.

Cause: 200x1000 380

Calculation of current per square of aluminum core wire: squared).

3x150 square aluminum core cable can be used.

Generally, the power is 1 square wire with 2 kilowatts of electrical equipment, this 200 kilowatts, you need 100 square meters, but the national standard specifications are only 95 and 120 square meters closest to 100 square meters, it is recommended that you choose 120 square wires and cables, safe and reliable.

220 kilowatts need 230mm aluminum cable, 180mm copper cable.

From the formula of the three-phase motor: p

Therefore, the rated current of 220kw is ip and cos, and the voltage is 380v.

According to current 415A and cable manual YJV, 230mm aluminum cable and 180mm copper cable are required.

380 volts and 200 kilowatts need to be equipped with 70 square copper cables. Because the current and voltage are all in line with it. It does not cause overload.

Wire and cable: Wire and cable are wire products that transmit electrical energy, electrical signals and realize electromagnetic energy conversion. Cables usually consist of a core that transmits electricity or signals and a sheath that protects and insulates them.

Cables that contain only one core and are thinner in diameter are often referred to as wires. There are also wires that are not insulated and are called bare wires. The core in the cable is made of a metal material that conducts electricity well, usually using copper (which conducts well) or aluminum (which is less expensive).

I have been an electrician for more than 20 years, and the general power is 1 square wire with 2 kilowatts of electrical equipment, your 200 kilowatts, you need 100 square meters, but the national standard specifications are only 95 and 120 square meters closest to 100 square meters, it is recommended that you choose 120 square wires and cables, safe and reliable.

It is recommended to use 70 square copper cables.

Hello, 200 kilowatts of electricity load belongs to the larger power load, which requires the use of larger diameter cables, and at the same time needs to use a three-phase four-wire power supply system. According to the national standard, a 200 kW electrical load requires the use of a three-phase four-wire cable with a conductor cross-section of 185 square millimeters. Among them, the three-phase wire is a single-core cable with a conductor cross-section of 185 square millimeters, and the neutral poor state beam line is a single-core cable with a conductor cross-sectional area of 95 square millimeters.

In addition, a ground wire is also needed. It should be noted that in practical application, the influence of cable length, ambient temperature and other factors on the rated load capacity of the cable should also be considered. Therefore, the design and construction should be carried out in strict accordance with the relevant specifications during the selection and installation process.

20 kW three-phase four-wire.

Electricity consumption, according to i=p (power factor.

It is equivalent to about 34 amps, the current carrying capacity of 4 square is about 32 amps, and the 6 square is about 42 amps, so a 6 square line is used.

The power factor of three-phase electricity is calculated. The power guess rate voltage root number 3 power factor 200kw 380 . According to the cable comparison table, considering the characteristics of the cable, the cross-sectional area of the electric section of the electric section should not be less than 150 square meters.