Medium Voltage Drive VFD 450KW 4.16KV HIVERT-Y 04/077

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Medium Voltage Drive VFD 450KW 4.16KV HIVERT-Y 04/077

 

Perfect Power Output Section

 

The HIVERT general MV VFD adopts the power cells connected in series and voltage overlapping method (i.e. Power cells multi-level cascade technology), it can output the perfect PWM sinusoidal waveform (see Figure 2 and Figure 3). It has the following advantages:

1. No need for the additional output filter

2. Directly driving general synchronous or asynchronous motor

3. No de-rating operation on the motor

4. No dV/dt stress on the insulation of motor and cables

5. No torque ripple, extending service life of motors and mechanism

6. No cable length restriction within the acceptable voltage drop.

 

The application of advanced technology variable speed
drives to motor control results in significant energy savings
over fixed speed in a wide variety of applications.
Since their introduction to the market in 2005, the RMVC
range of variable frequency drives have provided reliable
and highly efficient control of medium voltage AC motors
for many applications in a wide range of industries.
The RMVC 5100 series is the latest generation optimised
for improved performance, reduced size and weight and
even greater value for money.

 Medium Voltage Drive VFD 450KW 4.16KV HIVERT-Y 04/077

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Q:Laptop power adapter problem
Second, the transformer This thing is not standardized production, the result is that even if the parameters of the same, the transformer to get another of this may not be compatible with the use of the explosion with the use of the cup like the situation, so we generally Stressed the original transformer.
Q:How can a variable speed multi - speed three - phase asynchronous motor be controlled by a frequency converter?
Yes, but it is not necessary, if it is old motor that is another matter, tell you that you can use, but can not be in the frequency conversion process for the pole, this will cause the inverter protection or failure
Q:Three sets of batteries (540V) DC power supply U / f inverter.
It is estimated that the battery should be string - and - series connection method, and then rectifier part of the converter (which may also be caused by the switch) is actually a series of diodes in series, positive and negative after the reverse is actually the battery is Negative shorts, resulting in burning, as to burn only one of the group of a few cells, it should be string - and - string and that group, because the parallel to bear it double voltage.
Q:How to lift Yaskawa inverter base blockade?
2. If you can not solve the problem, be sure to seek the help of professionals.   3. If the base of the frequency converter blocks the input signal. While the base blockade, the inverter power tube is all closed, this one is mainly to protect the power tube. So the external input signal once resolved, the base block is automatically removed.
Q:Quartet of the TA, TC terminals have positive and negative?
The TC terminal has no positive and negative poles, which are passive programmable relays
Q:Inverter ACS355 If the speed is outside the allowable range, how to set the limit value
Remember, 2001 this should be set to a negative number, set to a positive number of your speed will never be less than this value.
Q:Which machines are used for the frequency converter
Used on a motor that needs to change the speed to change the power.
Q:22kw.2 pole fan can use Fuji inverter?
Definitely yes. 2-pole motor and four-pole motor difference is: the current is different, the speed is different, the torque is not the same,
Q:The laptop power adapter is hot
Notebook power adapter in the power after the use of hot is a normal phenomenon, do not worry, no danger, it will not explode. The length of this time does not matter, in the use of one or two hours will become very hot, but will always keep this temperature. And the notebook's power adapter shell are high temperature, will not burn. Notebook power adapter in addition to hot, you may hear the sound, the sound is not, very small. This sound is not a big problem, it is the power adapter power after the power filter sound, so plug in the plug after. Any power adapter basically has a sound. You can listen carefully, the surrounding environment is particularly quiet when you can hear. Power adapter is a transformer, inside the transformer coil in the AC will produce Zizi sound. Some power adapter use a long time will have this sound, but no big problem, you can continue to use. As long as the sound is not high outrageous do not control. Laptop power adapter hot and sound basic are considered normal, unless the temperature is too high or even damage to the shell or the sound is very obvious, this is a problem. The general does not affect the use of the adapter bad to buy a can. Notebooks have to protect the isolation circuit, do not worry about damage to the notebook.
Q:55 瓩 4 pole motor with a frequency of one hour can save much electricity
Such as: 55KW motor full load operation, 1 hour with 55 degrees of power (according to the motor power slightly different changes),

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