I have 80KW of electrical equipment, and I don t know how big the cable needs to be

80kw if the three-phase current is about 160A, use 95 square aluminum wire, if the distance is far to consider the voltage drop with 120 square meters, copper wire 50 square on the line, such as 220V with aluminum wire 240 square meters, copper wire 150 square meters.

It's three-phase, it depends on the resistance, or the sensibility, there is no distance length, generally 50 square copper cores can be used, if you don't worry, you can also use 70 square meters.

Only consider the load, do not consider the distance of transmission, if you use a three-core or four-core VV70mm cable, for reference only, the details should also consider the laying method, transmission distance, line loss, etc., it is recommended to take the above situation into account and then choose the appropriate cable.

According to the allowable current carrying capacity of the electrical wire, if the device is a single-phase power supply (220V), then choose a 6 square mm copper conductor. In the case of a three-phase power supply (380V), a copper conductor with a square millimeter can be selected. (Formula i=p.)

If it is a single-phase line of 220V, the current should be amperes. It is necessary to use a 6 square millimeter wire to be safe. (Formula i=p u).

Cable selection tips.

1. Select the cable according to the voltage: choose according to the first of the above general principles.

2. Select the cable cross-section according to the economic current density: the calculation method is the same as that of the wire cross-section.

3. Check the cable cross-section IUX izmax according to the maximum long-term load current of the line.

1. According to the multiple of the rated current of the load, it should be 170*, so you can choose 250A or 300A (300A is better) automatic air switch.

2. Air switch, also known as air circuit breaker, is a type of circuit breaker. It is a switch that automatically disconnects whenever the current in the circuit exceeds the rated current. The air switch is a very important electrical appliance in the low-voltage distribution network and the power drive system, which integrates control and a variety of protection functions.

In addition to completing the contact and breaking circuits, it can also protect the circuit or electrical equipment from short circuits, serious overloads and undervoltages, and can also be used to start the motor infrequently.

Voltage 380V In the standard case, a kilowatt of current required, according to the above table 85 kilowatts need 70 square meters of aluminum core cable, or 50 square meters of copper core cable can basically be satisfied, the specific situation also depends on the laying of your cable, working environment temperature, cable length appropriate adjustment.

Dear, hello, I am happy to answer for you, how big cable is used for 800kw power Answer: 800 kilowatts to use 834mm aluminum cable, 643mm copper cable. It is obtained from the formula of three-phase motor:

p= So the rated current of power 800kw i=p ,cos is. The voltage is 380V. According to the current 1509A, check the cable manual YJV, you need to use 834mm aluminum cable, 643mm copper cable.

If it is 380V50Hz AC, the current density of the copper cable is 4A mm. The cross-sectional area for 800kW power is millimeters squared. The calculation process is as follows:

According to the formula for calculating the power of three-phase alternating current: p = 3uicosa (cosa is the power factor, and the general value cross-sectional area is s=1430 4=square millimeters).

Summary. The power is 110kw, and a copper cable of 50 square meters should be selected.

With a power of 110kw, what size cable should I use?

The power is 110kw, and a copper cable of 50 square meters should be selected.

Dear, I will help you solve this problem, the power is 110kw, which is directly related to the distance (line length), if the length is about 20 meters, 30 square millimeters or more of the national standard copper wire cable. For a length of fifty meters or closer, it is recommended to choose a cable of thirty-five square meters.

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Summary. Hello, help you answer as follows, X09 power is 110kw, you should choose 50 square copper cable.

According to the power formula p=have:i=p (

197A (calculated according to the three-phase mains, the power factor is taken.)

It is my pleasure to serve you and you can ask other questions related to this. Or describe your problem in more detail. Let the respondent give you a better answer and do a better service. Thank you for your understanding and cooperation.

With a power of 110kw, what size cable should I use?

Hello, help you answer as follows, X09 power is 110kw, you should choose 50 square copper cable. According to the power formula p=have:i=p (calculated according to the three-phase mains, the power factor is taken It is my pleasure to serve you, you can ask other questions related to this.

Summary. Good morning, dear! We're happy to answer for you!

The total power is 400kw and the voltage is 380v, which requires a 400 square copper core cable. Calculated by the power factor 0 8, the current is 760A.

The total power of the equipment is 400kw, how big cable is needed.

Good morning, dear! We're happy to answer for you! The total power of 400kw and the voltage of 380v require a 400 square copper core cable. According to the power factor 0 8, the absolute current of the electric circle is 760a.

Dear, I hope it can help you! Have a great day!

It is best to use 800kva transformer, because the equipment is intermittent working system, and the operating coefficient is low. Of course, if you consider increasing the capacity again, you can choose a 1000kva transformer, but now the power consumption is not large, you have to pay more capacity fees, and the reactive power loss is relatively large, and this part of the money is also very high. It is best to use 300 square meters for cables.

Most of the high-voltage distribution lines in the 10kV urban area use wires with insulated sheaths, and the high-voltage wires need to be insulated with one or several porcelain bottles to insulate the poles or towers.

If the rated voltage on the high side is 10kV. Estimated 800*rated current). Choose YJV or YJV22 copper core power cable, and estimate the current of 1A per square millimeter, you can choose 3*50mm2 copper core cable.

If the mechanical strength is considered, 3*70mm2 should be selected.

According to the wire current comparison table, a minimum of 240 square copper core wires should be selected for 640kw loads. The 240 square copper core wire is laid with a safe interception of about 570A, and the transformer can choose 800kva.

800kw to 100kwv transformer, preferably bus to the distribution cabinet, and then branch distribution. A 1600A current cable is not cost-effective.

The power factor is calculated according to 80%100, and a 1000kw regulator is used.

The starting current of the tower crane must be used 1250kva transformer is very large, and when used at the same time, if the transformer capacity is small, the reasonable utilization rate of the transformer that will jump the transformer is 70%.

By calculating the transformer capacity of 691kva, but there is no such model, it is recommended to use 800kva, according to 800kva, secondary side current = 1154, and select two 4*240 copper cables to be used together. Low-voltage mother aluminum sorting 80*16. In addition, the power transformer capacity of 2840kw is used at the same time, and 3600kva is proposed to be selected, and three 1200kva are used in parallel, which runs better.

Low-voltage aluminum hub row with 80 * 16 * 2 = 2560 amperes. 2560* amps.

1. How big of cable is needed for 80 kilowatts.

When the load is 220 volts of single-phase voltage, the copper cable needs to be 240 square meters, and the aluminum cable needs to be 300 square meters. When the load is 380 volts three-phase voltage, the copper wire cable needs to be 70 square meters, and the aluminum wire cable needs 95 square meters.

Second, how to choose the best cable.

1. The best cable to choose is of international standard, and the guarantee that can be obtained in this way will be higher. Therefore, before purchasing the cable, it is necessary to see whether it belongs to the international standard brand, which depends on the product's certificate, trademark, and specifications.

2. By observing the cable, you can find out how good its quality is. At this time, it is necessary to peel off the cable of the section to expose the internal conductor: if the internal copper wire is purple-red, it means that the quality is better, if it is a yellow copper wire, the quality is okay, and the black copper wire is very poor, so you should buy carefully.

3. Touch the conductor of the wire with your hands, if the surface of the conductor is smooth and there is no burr, then the quality of the wire is high-quality. The surface of the conductor is rough to the touch and can feel stinging, indicating a quality problem. Scratch the insulating skin with your fingernail again to see if there are any marks.

80 kilowatts of electricity, the use of three-phase power supply, the line current is about 211A, check the national electrical code "500 volt copper core insulated wire long-term continuous load allowable carrying capacity meter", 211A current needs to use at least 50 square millimeters of power cord.

Question: How big of cable three-phase electricity should be used for 25 kilowatts, how much air should be used for 25 kilowatts, how big of cable three-phase electricity should be used, and how big of air should be used, and the answer is that the rated current of the 25 kilowatt motor is about 50A, and you can choose 63A switch.

If the power supply distance is less than 30 meters, it is recommended to choose 16 square meters for the cable cross-section.

Summary. Hello, it's a pleasure to serve you. The cable required for the power of 80kw is 3x70 square aluminum wire. According to the power formula p= Yes: i=p ( )80 (calculated by three-phase mains, the power factor is taken.)

How big is the cable required for 80kw power, and how to calculate it?

Hello, it's a pleasure to serve you. The cable required for the power of 80kw is 3x70 square aluminum wire. According to the power formula p= Yes: i=p ( )80 (calculated by three-phase mains, the power factor is taken.)

I hope the above can be helpful to you and I wish you a happy life