Medium Voltage Drive VFD 440KW 6.6KV HIVERT-Y 6.6/048
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- 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: 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 application of variable frequency speed control?
- In the second half of the 20th century, the power electronic devices from the SCR (thyristor), GTO (gate can be turned off thyristor), BJT (bipolar power transistor), MOSFET (metal oxide field effect transistor), SIT (electrostatic induction transistor ), SIT (Electrostatic Inductive Thyristor), MGT (MOS Control Transistor), MCT (MOS Control Gate) to today's IGBT (Insulated Gate Bipolar Transistor), HVIGBT (High Voltage Insulated Gate Bipolar Thyristor), Device To promote the continuous development of power conversion technology. Since the 1970s, pulse width modulation variable frequency (PWM-VVVF) speed control research has aroused people's attention. In the 1980s, the PWM model optimization problem, which was the core of the frequency conversion technology, attracted people's interest and made many optimization modes, in which the saddle-wave PWM mode was the best. The 20th century, the late half of the 1980s, the United States, Japan, Germany, Britain and other developed countries VVVF inverter has been put into the market and widely used.
- Q: Pump frequency converter instantaneous restart and restart the problem
- How the frequency converter works: The frequency converter is a power control device that transforms the power frequency power supply into another frequency by the on-off function of the power semiconductor device. We are now using the inverter is mainly used to pay - straight - cross mode (VVVF frequency conversion or vector control frequency), the first frequency AC power through the rectifier into a DC power supply, and then convert the DC power supply frequency, voltage can be controlled AC power supply to the motor. The circuit of the inverter is usually composed of four parts: rectifier, intermediate DC link, inverter and control. Rectifier part of the three-phase bridge uncontrollable rectifier, inverter part of the IGBT three-phase bridge inverter, and the output for the PWM waveform, the middle of the DC link for the filter, DC energy storage and buffer reactive power.
- Q: What is the working principle of high voltage electrodes and frequency converters?
- High-voltage inverter is the input power supply voltage above 3KV high-power inverter, the main voltage levels are 3000V, 3300V, 6000V, 6600V, 10000V and other voltage levels of high-voltage high-power inverter High voltage inverter from high - low - high; low - high; high - high points.
- 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: Huichuan frequency converter drag a 4-kilowatt four-pole motor to change the six pole can?
- can. Re-enter the new motor parameters in the drive.Inverter motor power to 4KW, speed 980 can!
- 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: I power adapter output current 3.25A for a 4.5A, can you use it
- No problem that nominal value is that the adapter can provide the maximum operating current to your computer current is not so big
- Q: How do I select a drive? Which brand is better
- ?Ampang letter company can provide different types of inverter, the user can according to their actual process requirements and the use of occasions to choose different types of frequency converter. When selecting the inverter, note the following precautions: ????1, according to the load characteristics of the inverter, such as the load for the constant torque load; fan, pump load should be selected AM300 inverter. ????2, select the inverter should be the actual motor current value as the basis for selection of the inverter, the motor rated power can only be used as a reference. Also should take full account of the output of the inverter contains high harmonics, will cause the motor power factor and efficiency will be bad. Therefore, with the inverter to the motor power supply and power grid power supply compared to the motor current increased by 10% and the temperature increase of about 20%. Therefore, in the choice of motor and inverter, should take into account the situation, the appropriate margin to prevent the temperature rise is too high, affecting the motor life. ????3, the inverter to long cable operation, this time should take measures to suppress the long cable to the ground coupling capacitor, to avoid the inverter output is not enough. So the inverter should be amplified or selected to install the output reactor at the output of the inverter.
- Q: How to choose a power adapter
- With the seller to an output 20V ,, 0.5A IBM single hole power adapter
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Medium Voltage Drive VFD 440KW 6.6KV HIVERT-Y 6.6/048
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 100000 unit/month
OKorder Service Pledge
OKorder Financial Service
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