Medium Voltage Drive VFD 3000KW 3KV HIVERT-Y 3.3/660

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Medium Voltage Drive VFD 3000KW 3KV HIVERT-Y 3.3/660

Improved power quality

Almost sinusoidal input current eliminates the need for additional harmonic filters or active filters on the input side
∙ Compatible with older design of motors allowing retrofit to existing system designs.
∙ Minimal impact of voltage reflection, allowing longer cable length between motor and drive.
∙ Multi-level medium voltage drives minimise stress on motor windings, eliminating the need for additional sine
wave filters

 

 Energy saving

 

Fans, pumps and compressors have load characteristics whereby the power consumed increases as a cubic law with
speed.

 

The optimum way to save energy with this type of load is to control the motor speed with a VFD. This is far more effective as it avoids the waste of energy when fluid flow rate is controlled using a valve or damper.Process control is improved by the use of more accurate, prompt and flexible control of the motor speed.

 

The inherent soft starting ability of a VFD reduces the impact on the network (voltage dips) caused by high starting currents.

 

Substantially greater starting torques can be achieved with a VFD than with a soft starter and with much lower starting current, reducing stress on the motor windings and saving energy.The controlled start-up acceleration rate also reduces themechanical stress on the load equipment.


∙ The VFD operates at a higher input power factor than a directly connected asynchronous motor.


∙ The losses in the VFD converter are low, only 1.5% excluding the transformer.

 

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Q:What is the laptop power adapter? Is it the battery?
so that the book can be normal operation, or else you think the notebook is 220V Is the voltage at work?
Q:3.7KW inverter with 2.2KW 6-pole motor running to see the inverter shows the current is more than 4A, with the amount of clamp to 2.8A
2, upstairs brothers to answer the correct, the basic frequency is the following constant speed torque control, load changes little, the current change is not large.
Q:Laptop power adapter bad what is the phenomenon?
Either the power is bad or the machine on the power supply module is bad to repair service
Q:In the case of the inverter, why can not the normal operation after removing the gearbox? The motor is 4 pole.
If there is a load, it may be less than the torque. So it can not run.
Q:What is the difference when using inverter frequency conversion ordinary motor and variable frequency inverter motor
First of all you have to understand the difference between variable frequency motor and ordinary asynchronous motor. 1, inverter motor cooling fan is not connected with the motor spindle, is independent, the fan rotation from the motor speed, to ensure that the motor cooling.
Q:On the notebook power adapter output current and voltage issues
This current is the maximum current value of the adapter output, Voltage matching, of course, can be charged. It is recommended to select an adapter with an output current value that is slightly larger than the original.
Q:What is the motor series parameter setting of the inverter? If it is with the spindle,
The number of motor poles can be estimated by the parameters: 1000Hz corresponds to 60000rpm, According to "Speed in rpm = 60 * Frequency in Hz / (Number of Poles / 2)", Number of poles = 60 * Frequency indicated by Hz * 2 / Speed in rpm = 60 * 1000 * 2/60000 = 2 poles. The same is true with 333Hz and 20000rpm projections. The number of motor poles for the frequency converter should be entered with the number of poles of the motor that are directly connected to the frequency converter.
Q:Laptop power adapter current is not the same alternative?
so the output voltage, the same output polarity, the output current of the adapter can be used in smaller power notebook, and small power adapter can not be used to give Powerful notebooks,
Q:Is the number of Amps of the notebook power adapter higher than the original number of security on the computer?
There is no power adapter is not the number of clocks that the current output of the current frequency is the number of security in the case of the maximum number of output support the specific output current is the number of security is based on the current power consumption of the computer But please note that the power adapter output voltage must be consistent with the original agreement is now generally 20V
Q:Laptop power adapter how to detect?
After opening to see what is burned, Estimated to be insurance and the like

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