100 kw is the power drawn by the load. to calculate the cable size you need to know the voltage. From that you can calculate the current. this decides the cable size. for example if the voltage is 400Volts then the current flowing in the circuit when the load is 100 KW will be 250 amps. (100,000/400). for 250 amps to flow with out causing excessive heating of the cable the cross sectional area of the copper cable should be 150 sq mm.for a round cross section the diameter will be roughly 15mm.
Need to know what the voltage of the motor is.
you need the current of motor or the KW/HP rating
It is not possible to answer the question without knowing the supply voltage. Conductors (wires) are sized according to current (amps), not KW. Amps = watts / volts As you can see, there is no way to determine amps (needed to size the wire), without knowing both the KW and the voltage. If this is on a test, it is a trick question. If you are really trying to size a cable for a real stove, hire a licensed electrician! Improperly sized wire can start a fire.
The cable size depends on a few factors, such as the supply voltage, the method of starting the motor, (direct-on-line, or star delta) and the length of cable required to compensate for voltage drop. Also, if the cable is copper or aluminum.110 kW motor has a rated current of 200 amps at 415 volts, so the correct copper cable size would have a cross-sectional area of 75 square mm., if the motor is started direct-on-line.At 660 volts, the rated current would be 118 volts and the cable size would be 35 square mm.
To calculate the cable size for a 100 kW load, you would need to consider factors such as the voltage of the system, the type of cable insulation, the ambient temperature, and the installation method. The cable size is typically determined by the maximum current the cable will carry without overheating. Using the formula: Cable size (mm²) = (2 x L x I x R) / (√3 x V x cosΦ), where L is the cable length, I is the load current, R is the resistance of the cable, V is the voltage, and cosΦ is the power factor, you can calculate the appropriate cable size for the 100 kW load.
100 kw is the power drawn by the load. to calculate the cable size you need to know the voltage. From that you can calculate the current. this decides the cable size. for example if the voltage is 400Volts then the current flowing in the circuit when the load is 100 KW will be 250 amps. (100,000/400). for 250 amps to flow with out causing excessive heating of the cable the cross sectional area of the copper cable should be 150 sq mm.for a round cross section the diameter will be roughly 15mm.
For a 37 kW induction motor, a cable size of approximately 10 AWG (American Wire Gauge) would be suitable for typical installations. However, the specific cable size required would depend on factors such as the length of the cable run, ambient temperature, and voltage drop considerations. It is recommended to consult with a qualified electrician to determine the appropriate cable size for your specific application.
Need to know what the voltage of the motor is.
you need the current of motor or the KW/HP rating
It depends on the voltage, which was not specified. Please restate the question, giving the voltage. The reason for this is that cable size is a function of current, not power.AnswerThe size of a cable depends on the material from which the conductor is made, the number of cores, the type of insulation, whether it is armoured or unarmoured, and how it is installed. So, even if you know the relevant voltage, the only way in which you can determine the correct cable size is the use the tables provided in your country's wiring regulations, which take these factors into account. Incidentally, the symbol for 'kilowatt' is kW, not 'kw'.
It is not possible to answer the question without knowing the supply voltage. Conductors (wires) are sized according to current (amps), not KW. Amps = watts / volts As you can see, there is no way to determine amps (needed to size the wire), without knowing both the KW and the voltage. If this is on a test, it is a trick question. If you are really trying to size a cable for a real stove, hire a licensed electrician! Improperly sized wire can start a fire.
The cable size depends on a few factors, such as the supply voltage, the method of starting the motor, (direct-on-line, or star delta) and the length of cable required to compensate for voltage drop. Also, if the cable is copper or aluminum.110 kW motor has a rated current of 200 amps at 415 volts, so the correct copper cable size would have a cross-sectional area of 75 square mm., if the motor is started direct-on-line.At 660 volts, the rated current would be 118 volts and the cable size would be 35 square mm.
Cable doesn't conduct power, it conducts current. Either the voltage and load must be known or the amperage the cable will need to conduct to determine the size of the cable. Once the amperage is known, there are multiple tables online that have cable size and amperage. Do a Google search for "conductor amperage" for examples.
3 core 35 sq mm alu. Or 3 core 25 sq mm cup.
The typical size of a residential PV system is between 3 kW and 8 kW, but can vary based on energy needs, roof size, and budget. A 5 kW system is common for a medium-sized household.
If it's a 380 v 3-phase supply, the current is up to 300 amps which could be supplied over a short distance by XLPE cable with 70 sq. mm cross-section conductors.