What is the normal working current of the 40KW motor?

40kw motor normal working current is 30A.

An electric motor is a device that converts electrical energy into mechanical energy. It uses an energized coil (that is, the stator winding) to generate a rotating magnetic field and acts on the rotor (such as a squirrel cage closed aluminum frame) to form a magnetoelectric dynamic rotational torque. The motor is divided into DC motor and AC motor according to the different power sources, and most of the motors in the power system are AC motors, which can be synchronous motors or asynchronous motors (the magnetic field speed of the stator of the motor is not synchronized with the rotation speed of the rotor).

The motor is mainly composed of a stator and a rotor, and the direction of the energized wire in the magnetic field is related to the direction of the current and the direction of the magnetic inductance line (magnetic field direction). The working principle of the motor is the effect of the magnetic field on the current force, which makes the motor rotate.

The working current of the motor is related to the working voltage of the motor, and the common motors are 115V, 230V, 400V, and several grades.

Operating current = rated power.

Operating voltage. If the motor works in the rated power state, the working voltage is 400V, the working current is equal to the rated power of 40KW compared to 400V=100A, if the working voltage is in the case, the working current is equal to the rated power of 40KW.

For a 40kw motor, the rated voltage should be 380v

It is obtained by p=ui, i=p u, and the known voltage is 220v, so i=40000 220, and the rest is calculated by yourself.

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The normal working current of the 45kw motor is about 90A, and the starting current is about 200A. Rated current refers to the current when the electrical equipment is operating at the rated voltage and according to the rated power. The rated current of electrical equipment refers to the allowable current of electrical equipment during long-term continuous operation under rated environmental conditions (ambient temperature, sunshine, altitude, installation conditions, etc.).

When working with an electrical appliance, the current should not exceed its rated current. <

The normal working current is about 90A. The starting current should be about 200A.

Rated current refers to the current when the electrical equipment is operating at the rated voltage and according to the rated power.

The rated current of electrical equipment refers to the allowable current of electrical equipment during long-term continuous operation under rated environmental conditions (ambient temperature, sunshine, altitude, installation conditions, etc.). When working with an electrical appliance, the current should not exceed its rated current.

The current that can be achieved by a 30kw motor is 54A.

Generally speaking, a 30 kW motor has a current of about 54A. 30kw motor, approx. 54 amps. 1KW=2A, no load is one-third of its current, and 30KW cannot exceed 70A when the full negative core is full.

According to the power formula p=have:i=p,.

Precautions for current calculation:

We must master the correct current calculation formula when calculating the current, which will have a better guarantee for the accurate current calculation, and can also avoid various deviation problems, so we must be able to understand the correct formula when calculating the current, and at the same time, we need to judge the details in combination with the details.

In the AC circuit, the current calculation formula is i=U, XCXC FCI=2 FCU, and we also need to consider the influence of various factors, so that the voltage at both ends can be better calculated under the condition that the voltage at both ends remains unchanged, and the current pass rate in the capacitor can also be better judged, so as to avoid various calculated partial mode pies.

Professional for the calculation formula of the current must have been understood, you can go directly to the professional ** to calculate, you can directly fill in the number to calculate the result, so that you can get more accurate calculation results, in the process of introduction does not need to spend too long quick answer time, you can get more stable values. <>

30kW motor with a current of approximately 54 amps.

According to the power formula, the electric power p of the motor is equal to multiplied by the voltage multiplied by the current and then multiplied by the power factor, the work and filial piety of the motor is 30 kilowatts, the voltage is 380 volts, and the power factor is, you can calculate the magnitude of the current.

The power factor is a coefficient of the efficiency of the electrical equipment, the power factor of the general motor is less than 1, calculated according to the three-phase mains, and the power factor is taken.

Motor generally refers to three-phase motors, the most common is three-phase motors, that is, AC motors driven by three-phase alternating current. Commonly used three-phase motors with a rated voltage of 380 volts.

Hello:1, the rated current is about 8A.

2, The starting current is about 5 7 times of the rated currentMaximum instantaneous start-up currentIn: 8a 7 =56a 。

The formula for 4000 watts unidirectional current is ampere unidirectional circuit power is p=iu, which is equal to the line current, p is the load power, and u is the directional voltage is 220v

Summary. The starting current of a 450 kW motor is generally 6 8 times the rated current, i.e. 2700 3600A.

The starting current of a 450 kW motor is generally 6 8 times the rated current, i.e. 2700 3600A.

Can you add, I don't quite understand it.

The starting current of a 450 kW motor is generally 6-7 times the rated current, i.e. 2700-3150A. Reasons for the problem:1

Improper wiring of the motor, and the wrong wiring will lead to excessive starting current of the motor, which will affect the normal operation of the motor. 2.The wiring line of the motor is damaged, and the damage to the wiring line will cause the starting current of the motor to be too large, which will affect the normal operation of the motor.

3.The wiring and wiring of the motor has poor wiring contact, which will lead to excessive starting current of the motor, which will affect the normal operation of the motor. Workaround:

1.Check the wiring of the motor to make sure it is wired correctly. 2.

Check the wiring of the motor to make sure that the wiring line is in good condition. 3.Check the wiring line contact of the motor to make sure that the contact is good.

Personal Tips:1When wiring the motor, it should be wired correctly so as not to affect the normal operation of the motor.

2.When wiring the motor, you should check whether the wiring line is in good condition, so as not to affect the normal operation of the motor. 3.

When wiring the motor, you should check whether the wiring line contact is good, so as not to affect the normal operation of the motor. Related knowledge: The starting current of the motor refers to the current required by the motor when starting, which is generally 3-7 times of the rated current, and the specific value depends on the load of the motor.

Excessive starting current of the motor will cause the motor to overheat, which will affect the normal operation of the motor.

The running current of the 55 kilowatt motor is 40A, and the power is equal to the kilowatt. A is the current unit ampere, and the current of 40A indicates that the motor is very large. Generally, the high-power hall vertical motor is three-phase electricity, and the three-phase electric voltage in China is 380V (volts).

We know the power (p) voltage u current i of the electric excitation machine. The unit of power is w (watts). Substituting the voltage and current calculation, p 380 40 15200w (watts), because 1000 watts pretend to be filial piety 1kw, so p it.

The running current of the 55,000-resistant residual watt motor is 40A, and the power is what is it<>

Equal to kilowatts. A is the current unit ampere, and the current of 40A indicates that the motor is very large. Generally, high-power motors are three-phase electricity, and the three-phase electric voltage in China is 380V (volts).

We know the power of the motor (p) voltage u current i. The single dry feast of power is w (watts). Substituting the electric mu silver voltage current calculation, p 380 40 15200w (watts), because 1000 watts 1kw, so p.