Medium Voltage Drive VFD 1400KW 6.6KV HIVERT-Y 6.6/154

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Product Description:

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

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Q:Asus notebook power adapter how to open
Hi respectful ASUS users The power adapter can not be disassembled, and if your machine's power adapter is faulty, you can go to the local service center for testing.
Q:What is the laptop adapter
1, laptop adapter, that is, laptop charger. The traditional notebook charger can only output a single voltage to a type of notebook computer charging, the industry said that the traditional laptop power adapter for the single-band notebook charger.
Q:How can a variable speed multi - speed three - phase asynchronous motor be controlled by a frequency converter?
With the inverter control, then you do not need multi-speed motor, because the inverter can directly control the motor speed, if the two together, the formation of a waste.
Q:What is the base blockade in the drive?
After the base is blocked, the power tube is fully closed to protect the power tube.
Q:What is the characteristic of the variable pole speed method?
Three-phase asynchronous motor speed formula: n = 60f / p (1-s) From the above equation can be seen, change the power supply frequency f, the motor pole p and slip rate s can achieve the purpose of changing the speed. From the nature of the speed point of view, different speed control mode is nothing more than to change the AC motor synchronous speed or do not change the synchronous turn two. In the production machinery is widely used does not change the synchronous speed of the speed control method There are winding motor rotor resistance, chopping speed, cascade speed and the application of electromagnetic slip clutch, hydraulic coupling, oil film clutch, etc. Speed ​​control. Change the synchronous speed of the stator to change the number of pole pairs of multi-speed motor, change the stator voltage, the frequency of the frequency control can not change the motor speed and so on. From the energy point of view of the speed control point of view, there are two methods of efficient speed control and inefficient speed control: high speed control when the slip rate is constant, so no slip loss, such as multi-speed motor, frequency control As well as the speed loss can be recovered speed control methods (such as cascade speed, etc.). There are slip loss of the speed control method is a low efficiency, such as the rotor string resistance control method, the energy loss in the rotor circuit; electromagnetic clutch speed control method, the energy loss in the clutch coil; hydraulic coupling speed , Energy loss in the oil of the hydraulic coupling. In general, the slip loss increases with the speed range, if the speed range is not large, the energy loss is very small.
Q:11kw 6-pole motor can be used to adjust the inverter to 1800RPM?
Frequency converter in the 5-50Hz is constant torque frequency, 50-100Hz is constant power frequency, to see what you want to get the effect
Q:Three-phase two-pole motor can be used to reduce the frequency of the inverter
Speed range adjustable, you can drop to any speed you want!
Q:Can the inverter be used to control the speed of the DC motor?
For the brush commutation DC motor, the speed of the output torque in a certain circumstances and the input voltage related. For this type of motor, use the inverter to control the output of the rectifier device that supplies power to the motor, which can control the speed. For the brushless DC motor, the controller is in accordance with a certain law to change the form of stator winding power supply to produce a rotating magnetic field to drive the rotor rotation. That is, the DC motor controller outside the part of the AC motor and the structure and the principle has not much difference (see below. For such motors, with the inverter to replace the controller, and control the same as the AC motor Control the speed.
Q:Who knows how the frequency converter works
4 inverter circuit Inverter circuit In contrast to the rectifier circuit, the inverter circuit converts the DC voltage into the AC voltage of the desired frequency, and turns on and off the power switch device of the upper bridge and the lower bridge at the determined time. Which can be in the output U, V, W three phase phase difference between the 120 ° electrical angle of the three-phase AC voltage.
Q:How to view your own laptop power adapter is how much tile?
1, the power adapter has a logo, you can find their own look, close to the paper or direct letterpress printed with the voltage, current and power. If there is no write power, the direct voltage multiplied by the current is the maximum power. 2, if the power adapter only identifies the output voltage is 20V, the output current is 4.5A, then we formula W (power) = V (voltage) xI (current) to calculate. Calculate the formula with a power to know the output power is 20 × 4.5 = 90W.

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