High Voltage Frequency Drive 6.6KV 450KW VFD
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 100000 unit/month
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General Introduction
No need of extra output filtering device
Directly driving the general medium voltage synchronous or asynchronous motor and the temperature of the motor will not be increased.
No need of motor derating operation
No dv/dt damage to insulation of motor and cable
No torque ripple induced by harmonics, and the service life of motors and mechanism devices can be extended
No cable length limited when voltage drop is in the allowable range.
Besides the above advantages, medium voltage variable frequency drive has the following functions :
Protection of overload, overheat, over-current, open-phase, grounding, over-voltage, negative sequence.
Current limited function
Interlock protection of control power supply
Two sets of control power hot standby for redundancy
Power cell by-pass function
Control cabinet automatic bypass function
Cabinet door opening alarm function
Lock-phase function
Synchronizing switch function between variable frequency and power frequency (optional)
Soft start of motors, no impact to mechanical equipment and network
Voltage source High-high variable frequency drive, it can realize No-step speed regulation, which makes the typical motors into intelligent motors.
Medium voltage variable frequency drive has the following features:
- High quality power input: By phase shifting of the secondary winding and multi-pulse diode rectifier, isolated powers can be acquired and supplied for power cells. (18 pulses for 3/3.3kV, 30/36 pulses for 6/6.6kV, 48/54 pulses for 10/11kV) By using the technique of multi-pulse rectifier, the harmonic current could be eliminated greatly.
Power cell communicate with controller through optic-fiber, completely electric isolated
Inner set PID regulator, can realize running in closed-loop
Multiple communication methods with host computer, isolated RS485 interface, standard MODBUS RTU, communication protocol, PROFIBUS DP (optional), industrial Ethernet communication protocol (optional)
Accurately fault records, can inquiry information and locate fault
Compact construction, reasonable layout (can do customer-design)
Very good protective design to dust, ferrum pulveratum, acid mist, moisture etc.
Bypass cabinethas a function of "five-protection", meanwhile, it has a pressure relief channel to ensure the safety of operators.
Modularized design of power units, interchangeable and easy to produce and repair.
Specification
Model | A03/050~ | A03/100~ | A03/175 ~A03/220 | A03/220~A03/400 | A03/220~A03/610 |
Capacity(kVA) | 250~630 | 630~900 | 900~1150 | 1150~2000 | 2000~3125 |
Rated output current (A) | 50~100 | 100~175 | 175~220 | 220~400 | 400~610 |
Motor power (kW) | 200~400 | 400~710 | 710~900 | 900~1600 | 1600~2500 |
Input frequency | 45Hz~55Hz | ||||
Rted input voltage | 3000V±10% | ||||
Input power factor | 0.95 (>20%load) | ||||
Efficiency | 0.96 with rated load | ||||
Output frequency | 0.5Hz~120Hz | ||||
Frequency resolution | 0.01Hz | ||||
Overload capacity | 120% 1 min, 150% immediately | ||||
Analogue input | 0~10V/4~20mA | ||||
Analogue output | 0~10V/4~20mA | ||||
Acceleration/deceleration time | 0.1~3000s | ||||
Digital output/input | expanded according to requirement | ||||
Ambience temperature | 0~40°C | ||||
Storage/transport temperature | -40~70°C | ||||
Cooling | air cooling | ||||
Ambience humidity | <90% without condensation | ||||
Altitude | <1000 m | ||||
IP class | IP20 | ||||
Size(mm)(W×H×D) | 3300×2480×1200 | 4900×2480×1200 | 6000×2580×1300 | ||
Weight (kg) | 3000 ~5000 | 5000 ~7300 | 7300~9200 | ||
- Q:Laptop adapter heat
- In fact, as long as the power adapter temperature is within the design range, that is, the temperature in the normal range, the general is not dangerous! So why is the power supply hot? What kind of temperature range is the normal range? Switching power supply conversion efficiency can only reach 75% -85% or so. The answer is here. Switching power supply conversion efficiency is high enough, it is still difficult to find a better way to convert. Switching power supply in the voltage conversion, a part of the energy loss, in addition to a small part of the loss in the form of waves, the majority of the way out of the heat. Switching power supply power is missing, the loss of energy is also missing, the power of the heat is also large. This is why the desktop power supply to add a fan for cooling reasons. We may wish to count, a 100W switching power supply, in the use of how much energy loss in the above!
- Q:Will the asynchronous motor pole change the number of speed control can also be combined with the frequency converter
- but the use of the inverter is based on changes in the load by changing the frequency of power into the motor at any time speed control, you can achieve a smooth and accurate stepless speed control is Now widely used in a speed control method, especially for the load often change or often in the light load operation of the motor.
- Q:What is the difference between the electronic governor and the frequency converter on the motor speed regulation?
- Electronic governor is the use of control thyristor conduction angle to change the motor supply voltage, the motor characteristics of the curve down to change the speed of asynchronous motor. Its characteristics are as follows: the motor speed adjustment range is small, low speed when the motor load capacity is poor, the speed decreases, the motor torque decreases, not applicable with constant load, when the speed is low, prone to stall phenomenon; Applicable to fan load. Inverter speed is to change the frequency of the motor to achieve the AC asynchronous motor speed adjustment, speed adjustment balance, the motor load characteristics do not change with the speed change, suitable for load adjustment and constant torque adjustment. Excellent performance, but the cost is higher.
- Q:How does the spindle drive system of the inverter realize the positive and negative control of the main pole?
- Communication can reach a longer and more stable, generally better of the city 485
- Q:The Schneider inverter reports the nlp command
- Schneider inverter reported nlp ??? main circuit no electricity 1 re-power up 2 connected to the DC reactor terminals PO, PA / + between the short wiring, the main circuit can not be powered
- Q:How to disassemble the notebook power adapter
- HP laptop power adapter for the whole design of small sealed, you can follow the following steps to dismantle: 1, laptop power adapter for the injection molding package or with a strong adhesive glue, without any screws, so generally only with violence Cracked. However, as long as the method properly, after the dismantling of the power adapter can be restored to the original, do not carefully observe almost no traces of open.
- Q:Delta inverter reported CE4 reasons? Casually asked how many kinds of CE under a total
- Which model ah, CE alarm, it should be communication failure. CE4, it seems that should be written to the read-only address. You follow the inverter model, to the Delta website to download the corresponding manual, there are fault alarm instructions.
- Q:Inverter problem
- A: The inverter output 4 ~ 20mA (0 ~ 20mA), the analog signal can be directly connected to the measuring instrument, the daily design, installation, application are so, as long as the selection is correct, there will be no problem.
- Q:The inverter flat rate transferred to 29, on the submersible pump to burn the coil ?!
- 4, high-speed motor: high-speed motor running process will produce a large number of harmonics, enhance the output current of the inverter, resulting in a lot of heat. Therefore, the inverter selection is also larger than the ordinary one gear. 5, explosion-proof motor: In some mines, oil extraction environment, the frequency conversion system is explosion-proof motor, the choice of inverter should use the explosion-proof function of the inverter, and the inverter placed in a safer place. 6, the degree of protection: for dust, wet applications, inverter selection should pay attention to its protection level. Or choose Ampang letter AMB inverter, the fan can also run in the water. 7, single-phase motor: When the scene using single-phase motor, the inverter useless. 8, variable pole motor: When the field using variable pole motor, the inverter selection should ensure that the maximum operating current should not exceed the rated current of the inverter
- 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.
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High Voltage Frequency Drive 6.6KV 450KW VFD
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 100000 unit/month
OKorder Service Pledge
OKorder Financial Service
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