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What is the no load current of a 90kw motor operating 440V 60Hz?
The no-load current of a motor, such as a 90 kW motor operating at 440V and 60Hz, can vary based on its design and efficiency. Typically, the no-load current for such motors ranges from 10% to 30% of the full-load current. To estimate the no-load current, you can use the formula: No-load current ≈ Full load current × (no-load current percentage). The full-load current can be calculated using the formula: Full Load Current (A) = Power (W) / (Voltage (V) × √3 × Power Factor).
What is the ratio from no load current to full load current of an induction motor?
The ratio is between 30% to 40 %
What is the voltage across a load given that the current though it equals 30mA and resistance of the load is 1000 ohms?
Ohm's law: voltage is current times resistance 0.03 amperes times 1000 ohms = 30 volts.
How can calculate the power of contactor if you know the amper is 30 a?
To calculate the power of a contactor when you know the current (in this case, 30 amps), you can use the formula: Power (P) = Voltage (V) × Current (I). First, determine the voltage at which the contactor operates (e.g., 120V, 240V, or 480V). Then, multiply the voltage by the current: for example, at 240V, the power would be P = 240V × 30A = 7,200 watts (or 7.2 kW).
Potential difference 12 V and current 0.4 A calculate the resistance when?
To calculate the resistance, you can use Ohm's Law, which states that ( R = \frac{V}{I} ), where ( R ) is resistance, ( V ) is voltage, and ( I ) is current. Given a potential difference of 12 V and a current of 0.4 A, the resistance can be calculated as follows: [ R = \frac{12 , \text{V}}{0.4 , \text{A}} = 30 , \Omega ] Thus, the resistance is 30 ohms.
What is the no load current of a 90kw motor operating 440V 60Hz?
The no-load current of a motor, such as a 90 kW motor operating at 440V and 60Hz, can vary based on its design and efficiency. Typically, the no-load current for such motors ranges from 10% to 30% of the full-load current. To estimate the no-load current, you can use the formula: No-load current ≈ Full load current × (no-load current percentage). The full-load current can be calculated using the formula: Full Load Current (A) = Power (W) / (Voltage (V) × √3 × Power Factor).
What is the ratio from no load current to full load current of an induction motor?
The ratio is between 30% to 40 %
What is the starting current value compared to full load current?
The starting current of any electrical equipment which is 6 times more than that of the full load current. ex: full load current = 5 A the starting current will be 5*6 = 30 A.
What is the maximum current rating for the circuit breaker if the load requires a continuous current of 25 amps?
The maximum current rating for the circuit breaker should be at least 30 amps to accommodate the continuous current of 25 amps required by the load.
How do you calculate the current carrying capacity of cables?
if you know the gauge of the wire you can learn its current carrying capacity
What is the voltage across a load given that the current though it equals 30mA and resistance of the load is 1000 ohms?
Ohm's law: voltage is current times resistance 0.03 amperes times 1000 ohms = 30 volts.
How many amps does a 240 volt 10000 watt load draw?
Minimum current would be 10000 divided by 240 but it might be up to 30% more if the load has a poor power factor.
How do you calculate three phase meter reading in kWh with ct coils?
To calculate three-phase meter reading in kWh with CT coils, you need to first determine the current ratio provided by the CT coils. Multiply the current readings obtained from the CT coils with the current ratio to get the actual current values. Then, multiply the actual current values with the voltage and power factor to get the power in each phase. Finally, sum the power in each phase and multiply by the time in hours to get the kWh reading.
How many watts are in 30 volts?
To calculate the power in watts, you will also need to know the current in amperes. The formula to calculate power is P (watts) = V (volts) x I (amperes). If you only have the voltage (30 volts) and not the current, you cannot determine the power in watts.
How do you calculate collection target from customers?
This is for 30 day accounts... 100% of total debtors ledger less current * 90%
What is the current exchange rate from dollars to euros?
The rates change every day. Use this currency converter to calculate it.
What is the maximum load of baseboard heaters that I can put on a 30 amp 220 volt circuit and still be at the code safety limit?
The load current must not exceed 30 amps. That's the safe limit.
