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There are too many factors to calculate, and they are complex. You can look up the table or use the empirical formula to estimate the total current first, and select the wire according to the current.
1 mm2x8a = 8a mm2 recommended value for safe ampacity of copper wire 4 mm2 recommended value for safe current carrying capacity of 4 m2 bvv copper wire 4 8a mm2 = 32a
You 3kw about 6a current, the minimum copper core wire is not less than 1mm2 wire, it is recommended to use wire. If you use aluminum core wire, it is recommended to upgrade the wire.
1) The drive motor can be divided into: electric motors for power tools (including drilling, polishing, grinding, slotting, cutting, reaming and other tools), electrical motors, home appliances (including washing machines, electric fans, refrigerators, air conditioners, tape recorders, video recorders, video disc players, vacuum cleaners, cameras, hair dryers, electric shavers, etc.) and other general small mechanical equipment (including various small machine tools, small machinery, medical equipment, electronic instruments, etc.) electric motors.
2) The control motor is divided into: stepper motor and servo motor.
5.According to the structure of the rotor, it can be divided into: cage induction motor (the old standard is called squirrel cage asynchronous motor) and wound rotor induction motor (the old standard is called wound asynchronous motor).
6.According to the running speed, it can be divided into: high-speed motor, low-speed motor, constant-speed motor, and speed-regulating motor. Low-speed motors are further divided into gear reducer motors, electromagnetic reducer motors, torque motors and claw pole synchronous motors.
In addition to being divided into graded constant-speed motors, stepless constant-speed motors, stepless constant-speed motors and stepless variable speed motors, speed-regulating motors can also be divided into electromagnetic speed-regulating motors, DC speed-regulating motors, PWM frequency-conversion speed-regulating motors and switched reluctance speed-regulating motors.
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The power specification of the electric motor does not have the power class of 24 kilowatts, and the similar one is only 22 kilowatts. Y series 22 kW motor winding data for reference: 2 6-pole winding wire weighs kilograms, and 8-pole motor winding wires weigh kilograms.
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There is 10 kg of copper in the 25 kg motor. How much copper can be removed from a cracked motor, it depends on the size of the motor, less than 1 catty, more than 100 catties. The copper content accounts for about 8 10% of the weight of the motor.
The formula is as follows: total cross-sectional area x density of copper = weight of copper per meter of cable.
In the process of the old motor, only by accurately estimating the copper yield of the motor and estimating the profit margin of the motor can we give a reasonable acquisition. The following is a simple explanation of the copper output rate of the Y-class series 6 and 8 grades of the motor as an example, from which we know what the copper output rate of each model of the motor is. In the 6th grade of the Y series, the kilowatt weight is 23 kg and this, and the copper kilogram is produced, and the kilowatt is
Weight 25 kg, copper kg, kW: weight 45 kg, copper kg, 4 kW: weight 73 kg, copper 4 kg, kW:
Weight 84 kg, copper kg, kW: weight 119 kg, copper kg, 15 kW weight 195 kg, copper kg, 22 kW weight 250 kg, copper kg kg, 37 kW weight 408 kg, copper out kg, 55 kW weight 595 kg, copper digging closed kg. The copper output rate of Y series 8 grade motor is as follows:
The kilowatt weight is 63 kg, the copper output is 4 kg, the 4 kilowatt weight is 118 kg, the copper output is kg, the 11 kilowatt weight is 184 kg, the copper output is kg, the kilowatt weight is 266 kg, the copper output is kg, the weight of 30 kilowatts is 405 kg, the copper output is 24 kg, the weight of 37 kilowatts is 520 kg, and the copper output is kg.
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Summary. Hello dear, how many watts can a square copper wire carry a motor Under normal circumstances, the current that can be withstood by each square meter of copper wire is 6 amperes, so the current that a square meter of copper wire can withstand is 3 amperes. Our domestic voltage is 220 volts of alternating current, and the current that the square copper wire can carry is 3 220 = 660 watts, if it is exceeded, there may be potential safety hazards in use.
Hello dear, how many watts can a square copper wire carry a motor Under normal circumstances, the current that can be withstood by each flat meter of copper wire is 6 amperes, so the current that can be absorbed by a square meter of copper wire is 3 amperes. Our domestic voltage is 220 volts of alternating current, and the current that the square copper wire can carry is 3 220 = 660 watts.
I'm asking about dc24v
72-96 watts.
Copper wire upgrade calculation, square copper wire is equivalent to square aluminum wire, so the current carrying capacity of square copper wire is. Generally, the calculation method of copper wire safety is as follows: the safe ampacity of the square millimeter copper power cord and the safe ampacity of the square millimeter copper power line is 35A.
The safe ampacity of the 6 square millimeter copper power cord is 48A. Power p = voltage u current i 220 volts ampere 990 watts.
How many watts are there in that square.
It can carry 450 watts to 1320 watts, square wires, its current carrying capacity is between 2 amps and 6 amps, if it is a hollow ridge of 220 volts, then the bucket can carry 450 watts to 1320 watts.
What about 24V.
The square copper wire can bring 1000 watts of electrical appliances nearby, the Pingsen imitation square can bring 2000 watts nearby, and the square can bring more than 3000 watts of electrical appliances with this Zen fiber.
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Summary. Pro, calculate the current i= p v3ucos = 22000 W (, this is derived from the calculation formula, and then we verify it according to experience, the general electrician method is: in the three-phase power, the electric load of 1 kW is 2 A, and the current is 22 kW, that is, the current required by the motor of 22 kW is 22kWx2=44 A.
How many square copper wires are needed for a 22 kilowatt motor.
Hello, I am Life Answerer Pepsi Know-it-all k2, I have served 2580 people, I am happy to serve you, and the teacher is answering for you.
Pro, 10 square meters, 22 kilowatt motors need to use 10 square copper wires. 22 kW copper wire is 10 square meters, each copper wire has a bearing capacity of 5-8 years, and a 10 square meter copper wire has a bearing capacity of 50-80 years, so 10 square meters of copper wire is the best choice.
Pro, calculate the current i= p v3ucos = 22000 W (, this is derived from the calculation formula, and then we verify it according to experience, the general electrician method is: in the three-phase power, the electric load of 1 kW is 2 A, and the current is 22 kW, that is, the current required by the motor of 22 kW is 22kWx2=44 A.
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10 square lines. Normally, it will be equipped with 10 square lines, generally the rated voltage of this motor has three categories, namely 3x220V, 3X380V and 3X660V, its power factor is usual, and the work efficiency is, so it is calculated that its rated current is about 44A. 10 square aluminum wire can withstand 50 amp current, and considering the loss of other factors, choosing 10 square copper wire must be the safest.
Precautions for wire construction In order to ensure the normal operation of the wire and reduce the probability of safety accidents, we must be cautious in the actual construction, and the following are the precautions during the construction of the wire. 1. In actual operation, we must choose the appropriate connection method, in addition, we must prevent the joint, if it appears, then the resistance here will become larger, so that the wire will be heated, causing a huge safety hazard, so if the joint is found, it must be wrapped with insulating tape. 2. The construction needs to choose the appropriate installation path, if the concealed installation is used, then the wires need to be laid in the ceiling and the wall, and the exposed installation should be arranged and reinforced along the outer layer of the ceiling and the wall, both have advantages and disadvantages, we must measure according to the actual situation.
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It depends on how many poles of the motor you are. The number of poles is different, and the rotational speed is also different. There are also different wire weights, wire diameters, currents, and winding methods, so the wire weights are different.
Y series motors: 4-pole in kilograms; 4 kg for the 6-pole ones; The 8-pole one is kilograms.
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A four-kilowatt motor uses about two kilograms of enameled wire, which is four catties.
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The size of the copper wire required for a 22 kW motor is determined by factors such as its rated voltage, rated current, and the length and loss of the line.
First of all, according to the rated voltage and rated current of the motor, the minimum current required by the line can be calculated, for example, the rated frequency of the 22 kilowatt motor is 50Hz, the rated voltage is 380V, and the rated current is 50A, then the minimum current is: IMIN=50*380 1000=19A.
Secondly, according to the length and loss of the line, the minimum resistance required by the line can be calculated, for example, the line loss is 3%, then the minimum resistance is: rmin=19 2*3% 1000=ohms.
Finally, according to the calculation results of the lowest resistance and the lowest current, the size of the copper wire required for the line can be calculated. For example, if the resistivity of copper wire is ohmm, then the size of copper wire required for a 22 kW motor is: s=.
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1. Under normal circumstances, a motor with a power of 22kw needs to use a copper wire of more than 6 square meters.
2. Current = 22000 380, consider some surplus, take 6 square copper wire.
3. If the three-phase is slightly unbalanced, the current of a certain phase may exceed 42A, but the 6 square copper wire can carry about 60A, so the maximum current must be less than 60A.
4. If the pipe needs to be increased to 10 square copper wire.
5. If allowed, the star-delta starting conversion should be used blindly, otherwise, the cross-sectional area of the copper wire should be increased accordingly.
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A kilowatt motor has 1 to kilogram of copper wire.
A 1 kilowatt motor has 1 kilogram, so a 30 kilowatt motor has a copper content of 30 kilograms. And because the number of poles is different, the copper used is not the same, and the 4 poles answer is the pole is the pole.
The copper content of the motor is about 8 10 of the motor. Normal is counted as one-tenth. A 1000 watt motor contains about 1 kg of copper. In different periods, different brands of copper output are different, generally 1000 watts of motor output of about kilograms of copper.
Electromagnetic: The stator pole (main pole) of the electromagnetic DC motor is composed of an iron core and an excitation winding. According to the different excitation methods (called excitation in the old standard), it can be divided into series excitation DC motors, parallel excitation DC motors, separately excited DC motors and compound excitation DC motors.
Due to the different excitation methods, the stator pole magnetic flux (generated by the energized coil of the stator pole) is also different.
The excitation winding and the rotor winding of the series excited DC motor are connected in series by brushes and commutators, the excitation current is proportional to the armature current, the magnetic flux of the stator increases with the increase of the excitation current, the torque is approximately proportional to the square of the armature current, and the speed decreases rapidly with the increase of torque or current.
Its starting torque can reach more than 5 times of the rated torque, the short-term overload torque can reach more than 4 times the rated torque, the speed change rate is large, and the no-load speed is very high (it is generally not allowed to run under no load). Speed regulation can be achieved by connecting the series winding in series (or parallel) with an external resistor, or by connecting the series winding in parallel. <>
Household 16 square copper wire can drive 21 kilowatts.
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