What is the best way to brake the 3 phase motor 15KW, and the motor needs to be started frequently

Advantages of servo motor: 1. Accuracy: Closed-loop control of position, speed and torque is realized; Overcome the problem of stepper motor out-of-step; 2. Speed:

Good high-speed performance, the general rated speed can reach 2 3 rpm; 3. Adaptability: strong anti-overload ability, can withstand three times the load of rated torque, and is especially suitable for occasions with instantaneous load fluctuations and requirements for fast starting; 4. Stable: Stable operation at low speed, and no stepping operation phenomenon similar to that of stepper motor will occur during low speed operation.

It is suitable for occasions with high-speed response requirements; 5. Timeliness: The dynamic response time of motor acceleration and deceleration is short, generally within tens of milliseconds; 6. Comfort: Heat and noise are significantly reduced.

Disadvantages of servo motors: Servo motors can be used in places where they can be attacked by water or oil droplets, but they are not completely waterproof or oil-proof. Hence ,...

The brake of the motor is commonly used in energy consumption braking, reverse braking, mechanical electromagnetic brake braking, etc., 15kw power is larger, and energy consumption braking should be selected.

Frequent start-up and frequent braking, it is recommended to choose a frequency converter and braking resistor. The accuracy is relatively high, which can protect the motor.

If it is a motor of this type of frequent start motor (I use frequent start motor), and the braking accuracy is not high, the mechanical electromagnetic brake is used, which is the greater dynamic and static.

Mechanical electromagnetic brake brake is the first choice!

Mechanical electromagnetic brake.

**Relatively inexpensive energy consumption braking.

Hello, to this question, you need to know more about the application scenario you described. Basically, though, if you're going to use a transformer to brake a three-phase motor, typically, you'll need to choose a transformer with a rated capacity that is at least the same as the motor's rated capacity. For braking applications, you need to use a resistor that can absorb the kinetic energy of the motor and convert it into thermal energy.

Such resistors usually require additional power to drive it, and a transformer is usually used to reduce the supply voltage to a suitable level. So, if you need to brake a three-phase motor with a roar and you need to use a transformer to drive the resistor, then you need to choose at least one transformer to make sure it can withstand the rated power of the motor. At the same time, you also need to make sure that the voltage rating and phase number of the transformer match the motor.

Hello dear. For energy-consuming braking of three-phase motors, resistors or DC power can be used for braking. 1.

If a resistor is used, it is necessary to calculate the required resistance value according to the rated power, voltage and current of the motor, and select the appropriate resistor for wiring starvation. If a DC power supply is used, a DC power supply with an output voltage and current that can meet the braking requirements is selected and wired. 2.

In practice, transformers can also be used to control the braking of motors. Generally speaking, the three-phase power supply of the motor should be connected to the three-phase input end of the transformer, and the three-phase output end of the transformer should be connected to the three-phase winding of the motor. Then, a resistor or DC power supply is connected between the one-phase input and output of the transformer to control the braking effect of the motor.

3.When selecting a transformer, it is necessary to calculate the required transformer capacity according to the rated power, voltage and current of the motor, and select a suitable transformer for wiring. Dear, thank you for your support, the above is my reply, I hope it can help you, I wish you a happy life

The DC voltage required for DC braking of a 15kW motor depends on the specific brake model and hole potato specifications, and is generally indicated in the brake manual or the motor manufacturer's technical datasheet. Normally, the DC voltage required for the brake is a certain multiple of the rated voltage of the brake, which depends on the rotor inertia, braking time and braking torque of the motor.

In practice, the DC voltage required for the brake is generally between 100V and 1000V, depending on the speed and load of the motor. If the motor speed is high or the load is large, a higher DC voltage needs to be provided for effective braking and shutdown.

It should be noted that the current and voltage generated by the brake need to be controlled during DC braking to avoid overload or damage to the motor and brake. At the same time, it is also necessary to pay attention to the installation position and fixing method of the brake to ensure that it can effectively brake the motor during braking, and will not affect the normal operation and life of the motor. It is recommended to seek professional help and guidance during the installation and commissioning of the brake to ensure the reliability and safety of the braking system.