• Medium Voltage Drive VFD 440KW 6.6KV HIVERT-Y 6.6/048 System 1
  • Medium Voltage Drive VFD 440KW 6.6KV HIVERT-Y 6.6/048 System 2
Medium Voltage Drive VFD 440KW 6.6KV HIVERT-Y 6.6/048

Medium Voltage Drive VFD 440KW 6.6KV HIVERT-Y 6.6/048

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
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Supply Capability:
100000 unit/month

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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 general MV VFD has the following protection functions and features:

Overload and over-current

Phase loss and grounding

Over voltage

Overheat

Current limit

Redundant control power supply

Cell Bypass (optional)

Cabinet door alarm

Phase-Lock function

Synchronous Switching between VFD and Grid system

Soft start of motor

High efficiency >98% (VFD at full-load)

Electrical Isolation by the optic fiber

Built-in PID regulator

RS485 communication with the protocol, Modbus as standard, optional Profibus-DP, Ethernet,etc

Accurate fault records, easy to check fault history

 Compact structure and layout, customized design is available

Q:My Lenovo v450 laptop power adapter should be bad how to match?
Hello, this is not recommended to go online to buy. The original is too expensive, generally with the domestic voltage instability may occur, so I suggest you go to the computer city to buy. Generally good quality, to about 120. The The As for the model, you can look at the output power, or you take your bad adapter to go, people see a look. The The The You can use a few years no problem, power adapter this kind of thing, online to buy the replacement is not convenient. The Hope to help you
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: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:What is the principle and implementation of the inverter?
How the inverter works: 1. DC can be converted into alternating current through the oscillation circuit 2. The resulting AC power is then boosted by the coil (in this case, the alternating current of the square wave) 3. Rectify the resulting alternating current to obtain a sine wave
Q:Servo control system can give the inverter signal,
Servo motor driver can give the inverter signal, with analog output to control,
Q:Lenovo laptop power adapter side of the feet which is positive
Very simple, look carefully on the power there is a symbol on the map (relatively small, carefully looking for all the regular power above the standard), as I shown below is the positive external, most of the power is like this , If the sign on the icon is anti, that is connected to the center of the black point is negative, that is negative inside the positive. This figure is also very intuitive.
Q:Will the 75KW4 pole motor can be used to increase the speed of the inverter?
can! The output frequency of the inverter is higher than 50HZ, the speed of the motor is higher than the rated speed. In a certain range, the higher the frequency of the inverter, the faster the motor speed.
Q:What is the difference between AC and DC frequency converters?
Advantages and disadvantages: Advantages: inverter air conditioner with variable frequency power supply, inverter compressor, electronic expansion valve and microcomputer technology, the organic combination of air conditioning to further improve the performance, the use of room temperature fluctuations, better comfort, the better Power supply voltage fluctuation is not sensitive, the compressor starts, the general non-stop, cooling capacity in the range of 35% to 117% change, to avoid the frequent open air-conditioning, to extend the life of the compressor, while efficient, Features. Disadvantages: the price is more expensive, compared with ordinary air conditioning, about 1/3 to 1/4 of the price, at the same time, because the inverter air conditioner control system and frequency conversion system is more complex, higher requirements for components, compared to ordinary air conditioning , Inverter air conditioner failure rate is high, and, due to the use of frequency conversion technology, at the same time, will produce harmonic pollution. What is DC inverter air conditioner? DC inverter air conditioner is relative to the AC inverter air conditioner, in fact, its name is not correct, because the DC and no frequency, it is by changing the DC voltage to adjust the compressor speed, thus changing the air conditioning cooling capacity, It can only be said to be a DC variable speed air conditioning, not strictly in the sense of inverter air conditioner.
Q:Lenovo g450 laptop power adapter specifications is what?
Input: 100-240V ~ 1.5A 50-60Hz Output: 19V - 4.74A
Q:Master Hello a machine requires 500 speed matching 6-pole motor frequency converter transferred to about 28HZ
The belt rotation is calculated by the speed ratio. The current transferred to the motor by the inverter is approximately equal to the rated current of the motor, ie the motor's power is maximized.

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