Medium Voltage Drive VFD 3200KW 10KV HIVERT-Y 10/243

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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:Speed regulation method of three - phase asynchronous motor
1, frequency control, with the inverter, power 2, change the magnetic pole logarithm, not feasible. 3, stator series resistance, energy consumption
Q:Laptop power adapter is used to do what
Simply put the transfer into DC China's electricity is 220V AC, and the notebook is a direct current, the need for adapter to rectify, filter, regulator, and finally we need to form a direct current
Q:The laptop's power adapter can be used on a desktop computer
First of all, the desktop is the kind of power, is ups uninterruptible power supply. But relatively large, not directly inside the chassis. In addition, the storage capacity is limited.
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:Master Hello a machine requires 500 speed matching 6-pole motor frequency converter transferred to about 28HZ
If the machine needs the same speed, constant 500r / min This can be directly with the motor, remove the inverter, but also save costs, while the motor at 50Hz, the maximum power point of rated power. Output torque is the most stable point. The pulley diameter becomes smaller and the reduction ratio increases, and the torque required by the motor becomes smaller, which is advantageous for the motor. 960/500 = 1.92, that is to say the motor pulley compared to the original tune less 1.92 times
Q:Inverter principle eff23
Low-voltage general-purpose inverter output voltage of 380 ~ 650V, the output power of 0.75 ~ 400kW, the operating frequency of 0 ~ 400Hz, its main circuit are used to pay straight to pay the circuit. Its control has gone through the following four generations. 1U / f = C sine pulse width modulation (SPWM) control mode is characterized by simple control circuit structure, low cost, mechanical properties of hardness is better, to meet the general requirements of the smooth transmission speed, has been in various fields in the industry Widely used. However, this control mode at low frequencies, due to the lower output voltage, the torque by the stator voltage drop is more significant, so that the maximum output torque reduction.
Q:Yasukawa inverter reported bb code that is the reason why the base blockade?
This is not a fault! Only after the inverter receives the base block signal, it is not output!
Q:5.5 kW 4-pole motor with the fastest speed can exceed the rated speed?
The speed of the AC motor is related to the frequency of the power supply. Frequency AC frequency of 50hz, asynchronous motor rated speed of about 1440 r / min, increase the frequency of course can improve the speed, naturally can exceed the rated speed, provided that the motor load to be reduced. If you need to improve more, need to replace the inverter motor, improve the motor heat dissipation characteristics.
Q:What are the differences and links between the soft starters and the frequency converters, and their respective principles and uses?
The frequency changer mainly consists of rectifying (alternating current direct current), filtering, re-rectifying (direct current alternating current), braking unit, driving unit, detecting unit micro-processing unit and so on. Motor asynchronous speed expression bit: N = 60 f (1-s) / p (1) Where n --- the speed of asynchronous motor; f --- the frequency of asynchronous motor; s --- motor slip; p --- motor pole pairs. From the formula (1) we can see that the output speed of the motor is related to the input power frequency, slip rate and the number of pole pairs of the motor. Therefore, the direct speed regulation mode of AC motor mainly has variable speed (adjustment P), rotor Resistance speed control or cascade speed or internal feedback motor (adjust s) and frequency control (adjust f) and so on. And we now use the most widely used is the frequency control, from the speed n is proportional to the frequency f, as long as the change in frequency f can change the motor speed, when the frequency f in the range of 0 ~ 50Hz, the motor speed adjustment range is very width. The inverter is to change the motor power frequency to achieve speed adjustment, is an ideal high efficiency, high performance speed control means.
Q:What is the meaning of the bipolar polarity in the inverter ah There is a +10V signal input is a -10V What is the meaning of ah?
Analog signal input: Reference setting Input voltage Positive terminal (0 --- 10V)

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