If the inverter can drive the motor according to the voltage and current, but the power is smaller t

Updated on technology 2024-03-20
4 answers
  1. Anonymous users2024-02-07

    No, it doesn't. There is a contradiction in your statement, the power of the inverter is smaller than that of the motor, it cannot be used, the current will be overloaded, and the inverter will automatically protect the trip, cut off the circuit, and cause downtime. As a power supply, the power of the inverter should be left behind, and it is not ideal to be equal, and your situation is still insufficient power.

  2. Anonymous users2024-02-06

    Optional inverter, not only to see its power, but also to see its rated voltage and rated current these two parameters, as long as these two parameters meet the requirements, theoretically, the inverter can completely drag its load, but the premise is that the nameplate of the motor is not wrong.

    According to theoretical calculations, if the rated current of the motor is greater than the rated current of the inverter, the nominal power should not be greater than that of the inverter.

    Another point to note is that the rated output current of the inverter should be compared with the rated current of the motor, so that the inverter can smoothly drag the load as a result.

  3. Anonymous users2024-02-05

    The relationship between the frequency converter frequency and the motor current is as follows:

    1. When the frequency of the inverter is 50 Hz, also known as the power frequency, the speed and rated current value of the motor are the most suitable for the motor to work!

    2. When the frequency of the inverter is lower than 50 Hz, the speed of the motor is inversely proportional to the current of the motor. This means that the frequency of the inverter is inversely proportional to the current of the motor: the lower the frequency, the greater the current of the motor.

    It is precisely for this reason that when we adjust the frequency of the motor, we must pay attention to the current change of the motor, and beware of the motor from burning the motor because the current exceeds the standard!

  4. Anonymous users2024-02-04

    Will the speed of the motor change when the power supply voltage of the motor with frequency conversion changes? Hello dear <>

    The frequency converter adjusts the speed of the motor, mainly by changing the frequency, the frequency determines the synchronous speed of the motor, and reducing the frequency can reduce the speed of the motor. However, when it comes to reducing the frequency of the power supply, the drive must: The frequency converter changes the frequency of the motor, and the V f control mode changes the frequency of the motor at the same time, and also changes the voltage of the motor proportionally, and the speed of the motor is proportional to the frequency shed, so it also changes the speed of the motor.

    The inverter does not change the voltage to adjust the speed of the motor, but changes the frequency of the alternating current to adjust the speed of the motor under the premise that the voltage remains unchanged. Normally, at a frequency of 50Hz, the synchronous speed of a quadrupole motor is 150....n 60f pn is the rotational speed, f is the frequency, p is the number of pole pairs of the engine, which is known by the formula:

    The frequency is proportional to the speed, so the inverter can change the speed of the motor.

Related questions
Second, how to adjust the welding current and voltage?
8 answers2024-03-20

The size of the welding current mainly depends on the welding form and speed of the wire feeding, the faster the wire feeding, the greater the welding current. The arc voltage needs to use the formula when the short circuit transitions: U i (L is the current symbol) 16 plus or minus 2 (volts) to calculate, in this case, the welding current is generally below 200A; When the current is more than 200A, the arc voltage is used by the formula: >>>More

About lightning protection and the application of voltage, current symbols
18 answers2024-03-20

The main parameters of the arrester.

1. Nominal voltage UN: the rated voltage of the protected system is consistent, and this parameter indicates the type of protector that should be selected in the information technology system, and it indicates the effective value of AC or DC voltage. >>>More

When the current is constant, the relationship between voltage and resistance
10 answers2024-03-20

1.When studying the relationship between current and voltage, a positive ratio is determined by the readings of two tables. >>>More

What are Voltage, Current, Frequency, Power, DC and AC?
14 answers2024-03-20

Current: We know that water can flow in a tube, and we call it water flow. In the same way, electrons can flow in the wire, and this flow of electrons is called an electric current. >>>More

Elementary 2 electrical problems (about the relationship between current, voltage and resistance).
18 answers2024-03-20

The battery has internal resistance, which is equivalent to a small resistance inside the battery and the circuit in series, when the external resistance value is increased, the external partial voltage becomes larger, and the voltmeter measures the external voltage, so the value will become larger, dare to raise their own doubts, and it is so sharp, you are very promising, hehe.