the current rating of a 70mm swa 3core cable is 1.2 amps buried or 2 amps on perforated cable tray suspended 500 feet above sea level in antartica
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 size of cable for a 1000kW generator, you need to consider the generator's voltage and the distance the cable will run. You will need to calculate the current the generator will draw at full load using the formula: Current (A) = Power (W) / (Voltage (V) x Power Factor). Once you have the current value, you can use it to determine the appropriate cable size based on the current carrying capacity of different cable types, factoring in voltage drop considerations for the distance the cable will run.
Zero volts produces zero current.
the capacity of a transformer is defined as a product of voltage and current flowing through it.AS THE CURRENT IS MEASURED IN AMPERES AND VOLTAGE IN VOLTS, Hence transformers are measured/rated in KVA
Yes, you could, but why would you? Maintenance or fault testing on a cable rated at 600 volts involves applying the rated voltage (600 volts) and measuring the leakage current. Doing this test at 250 volts doesn't really test the cable. High potential (hipot) testing involves the application of even higher voltages for test purposes.
Depends on the voltage. VA = Volts x Amps. 800kva = 800,000 VA
To calculate the capacity in megawatts of a 400 kV power line, you need to consider the current carrying capacity of the line. This is typically based on factors such as conductor size, ambient temperature, and the type of insulation used. Once you have the current carrying capacity, you can use the formula P = V x I to calculate the power capacity in megawatts, where P is power in MW, V is voltage in kV (400 kV in this case), and I is current in amperes.
If you are in an area where the nominal household voltage is 120 volts AC, a step-up transformers having windings in a 3:1 ratio can be used to triple the voltage. Care must be taken to ensure that the transformer has sufficient current carrying capacity for the intended load.
Two Hundred
In North America you would use a three wire cable. A dryer needs two voltage supplies. A 240 voltage for the heating element and 120 volts for the motor and controls. The three wire cable will have a ground wire in it also but in North America this is not counted as it is not a current carrying conductor. The size of the cable will be a 3C #10.
The voltage drop depends on the current through the cable.For DC current in cable of 16 mm diameter, at 68° F, the voltage drop is(0.00857) x (current, Amperes) volts.
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.
The color of a 415 volts cable can vary depending on the specific wiring regulations in place in a particular country or region. In some cases, high-voltage cables such as those carrying 415 volts may be color-coded orange, red, or yellow to indicate their voltage level. However, it's always best to consult local electrical codes and standards for accurate information on cable color-coding.
To calculate the load on a 2.5 square mm cable, you can use the formula: Load (in watts) = Current (in amps) × Voltage (in volts). The maximum current that a 2.5 mm² cable can safely carry depends on factors such as insulation type and installation conditions, typically around 20-25 amps for standard installations. To find the load capacity, multiply the maximum current by the voltage of the circuit. Always consult local electrical codes for specific guidelines and safety standards.
The secondary winding's current rating is the rated apparent power of the transformer (expressed in volt amperes) divided by its voltage rating (expressed in volts). This applies to both step down, and step up, transformers.
To calculate the size of cable for a 1000kW generator, you need to consider the generator's voltage and the distance the cable will run. You will need to calculate the current the generator will draw at full load using the formula: Current (A) = Power (W) / (Voltage (V) x Power Factor). Once you have the current value, you can use it to determine the appropriate cable size based on the current carrying capacity of different cable types, factoring in voltage drop considerations for the distance the cable will run.
Zero volts produces zero current.