How big does a three phase four wire copper core cable need for 150 kilowatts of electricity for lig

A load of 150kW at 380V requires a four-core copper cable of 67 032mm.

According to the formula for calculating the three-phase electric power:

p 3uicosa (cosa is the power factor, generally the value is 0 85);

The current carrying capacity of copper wire is generally 4A mm;

i 150000 (1 732 380 0 85) 268 127 (amps);

Cable conductor cross-sectional area 268 127 4 67 032 (mm).

The key is to inform other conditions such as; What electrical equipment? Voltage? Power supply distance?

What wire are you ready to choose? How are the wires laid? Thermal environment?

How long does electricity last? Wait, there is a certain relationship, the conditions are not enough, and it is fooling you to tell you! In general, the power in this case can choose copper core wire, 95-185, uncertain.

By the formula of the three-phase motor: p=The rated current of 150kW is i=p ampere, and cos is. The voltage is 380V.

According to the current 283A, check the cable manual YJV knows, copper wire is required 70 square millimeters.

Safe ampacity.

Generally, the safe ampacity of copper conductor is determined according to the allowable maximum temperature of the core, cooling conditions and laying conditions. Generally, the safe current carrying capacity of copper wire is 5 8a mm, and the safe current carrying capacity of aluminum wire is 3 5a mm.

Key points》The safe ampacity of the general copper wire is 5 8a mm, and the safe current carrying capacity of the aluminum wire is 3 5a mm. Such as: the recommended value of the safe ampacities of mm bvv copper wires, and the recommended value of the safe ampacities of 4mm bvv copper wires 4 8A mm = 32A.

The maximum is 95 square meters, and the best is 120 square meters.

Single-phase 150 kW three-phase 3*95+1*70 copper cable with positive travel three-phase specification. Single-phase voltage 220V equipment, with three-phase four-spike line power supply, guess the total power is 150kw, then three-phase balanced load, each phase power is 150 3=50kw. The current per phase is about 50000 220 = 227A.

Specification 3*95+1*70 copper cable in the air, the recommended ampacities are 271a. Meet the power supply needs of the equipment. Therefore, single-phase 150 kilowatts can be used with specifications of 3*95+1*70 copper.

Three-phase 150kw rated current is 150kw open square) rated voltage) power factor) =

View "05 Series Building Standard Atlas" 05D1 P89-90 The applicable copper cable is 150mm2 (3+1 cable), and the following is the current carrying capacity of 150mm2 copper cable at different ambient temperatures:

30 degrees Celsius 319a

35 degrees Celsius 300a

40 degrees Celsius 277a

The key to this question is how far away is your power supply, because the wire has resistance, and its power supply distance is related to the voltage drop, so you must tell how far you can answer correctly, otherwise it is an unreliable answer. 150 square meters, or 185 square meters, or two 70 square meters in parallel, heat dissipation is better. You can search in the browser (an economical option for wire cross-sections) and take a look at the reference!

150KW, three-phase 380V load, the rated current is about 250A, 3*120+2*70 copper wire is enough.

In addition, if the continuous load is close to the rated current or the transmission distance is long, the cable diameter needs to be enlarged on this basis.

You can use 3*120+1*70 copper core cable.

Summary. How big of a copper core cable (three-phase four-wire) should I use for 150 kW power?

Hello dear, the most 95 square meters, the best 120 square meters, if you want to calculate the cable size required for 150kw, use the formula i=p (3ucos) to calculate. The normal power factor is about 283 amperes, according to the safety ampacity meter, you need to choose to use 70 square copper core cables.

How big of a copper core cable (three-phase four-wire) should I use for 150 kW power?

How big of a copper core cable (three-phase four-wire) should I use for 150 kW power? Hello dear, the most 95 square meters, the best 120 square meters, if you want to calculate the cable size required for 150kw, use the formula i=p (3ucos) to calculate. The normal power factor is about 283 amperes, according to the safety ampacity meter, you need to choose to use 70 square copper core cables.

How much does the total leakage switch take

How much does the total leakage switch need a Hello dear, 150 watts with 6A leakage protection 150 watts three-phase motor with how big a circuit breaker, leakage protector with the same current specifications. With a power of 150 watts, the working current is only about that, and this leakage switch can only play the role of leakage protection, not the motor overcurrent protection, because the leakage switch is not so small. You can use 10A or 6A without coverage.

How much does 380v25 kW take?

How much does 380v25 kilowatts need to be a 20 square copper cable, is 25 kilowatts 380v needs 20 square copper cables, let's calculate the current of 25 kilowatts 380v, according to the formula power is equal to root 3 times voltage multiplied by current multiplied by power factor, 25 kilowatts is equal to 25000 watts, current is equal to 25ooo watts divided by root 3 divided by 380v to get current 50a, the safety current of the line should be 2 times the load current, 50a times 2 to get 100a, The safe current of copper wire above 10 square and below 50 square is 5A per square, and 100 is divided by 5 to get 20mm2, so 25 kilowatts of 380V use 20 square copper cables. Hope it helps.

150 kilowatts with a large gas leakage switch.

380V150 kW with large air control switch.

150 kilowatt with how much gas control leakage switch Hello dear, 150kW380V its working current is about 300A, according to voltage fluctuations, disturbances and other factors, multiply by the coefficient of about 375A, up to the gear to select a capacity of 400A, leakage action current of 100mA 300mA leakage protector.

380V150 kW with how big air control switch Hello dear, 150 kW, the rated current is about 300A, if it is a motor, it should use 400A air opening. Hope it helps.

First, the magnitude of the current is calculated according to the relationship between power, voltage, and current in electrical engineering. p = where: is the root number 3, is the power factor.

180kw = amps. Due to the large working current, it is not possible to connect the meter directly to the circuit, which is generally in front of the main switch on the incoming side.

Three-phase alternating current has many uses, and most of the AC electrical equipment in the industry, such as electric motors, use three-phase alternating current. In daily life, single-phase power supply, also known as lighting electricity, is mostly used.

When lighting electricity is used, one of the three phases of electricity is used to supply power to electrical equipment, such as household appliances, and the other wire is the fourth line of the three phase four wires, that is, the neutral line, which leads from the neutral point of the three-phase electricity.

With such a high power, it is almost 400 amperes when it is fully opened. The minimum is 185 square copper wire. It is best to use 240, because in practice, the temperature, heat dissipation method, etc. will have an impact on it.

The actual load of the wire should be about 60% of the marked value. Using a larger one can also save you a lot of trouble if you add equipment or something in the future.