MV VFD AC Motor Drive 3KV 6KV 10KV

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Product Description:

 

Specifications of MV VFD AC Motor Drive 3KV 6KV 10KV

 

Direct medium voltage input and output 

 

IGBT power units in series to obtain MV by means of overlap wave 

 

Up to 40% saving rate

 

Application Fields of MV VFD AC Motor Drive 3KV 6KV 10KV

  • Power Generation: Induced draft fan, forced draft fan, condensate pump, feed pump, primary air fan, secondary air fan, booster fan, circulating pump, mill fan, slurry pump etc

  • Cement: draft fan, high-temperature fan, air blower, dust collection fan etc.

  • Metallurgy: blast furnace blower, slurry pump, feed water pump, dust fan, compressor etc.

  • Petroleum&Chemical: Water injection pump, crude oil pump, Compressor, fan, circulation pump, etc

  • Urban water supply: Water delivery pump, water intake pump, water supply pump, sewage treatment industry, self-fractionating pump etc

  • Minerals & Mining: Mud pump, ventilation fan, slurry pump etc

     

Others: Loads such as fan, pump and compressor in pharmaceutical, paper making and wind tunnel test.

Especially for: Fan and Pump

 

Power Plant

Pump, Fans

Steel Plant

Fans

Cement Plant

Fans

 

   

Product Structure of MV VFD AC Motor Drive 3KV 6KV 10KV

AC Motor Drive Variable Frequency Drive consists of By-pass cabinet, Transformer cabinet, power unit cabinet and controller cabinet from left to right.

 

 

AC Motor Drive MV Variable Frequency Drive

 

 

Technical advantages of MV VFD AC Motor Drive 3KV 6KV 10KV

  • 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, AC Motor Drive MV Variable Frequency Drive has the following functions and features:

  • 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.

  • 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.

Technical parameters of MV VFD AC Motor Drive

Series No

Parameters

Value

1

HVF Capacity(KVA)

250~8750kVA

2

Power of adaptive motor(KW)

200~7000KW

3

Input Frequency(Hz)

45~65Hz

4

Rated input voltage(kV)

3/3.3kV/4.16kV/6/6.6kV/10/11kV (+15%~ -35%)

5

THDi at power grid

<3% (Permissible value≤4%)

6

THDu at output side

<3% (Permissible value≤5%)

7

Input power factor

>0.95%(>20% of rated load)

8

Efficiency

>97%(under a rated load)

9

Output frequency(Hz)

0.5~120Hz

10

Output frequency resolution

0.01Hz

11

Rated output current(A)

36~600A

12

Overload capability

120%(1min), 150%(3s), 200%(Immediate protection)

13

Control mode

V/F control or Vector control

14

Logical control I/O signal

16 channels respectively

15

Analog input

0~10V/4~20mA

16

Analog output

0~10V/4~20mA Optional (2 channels)

17

Boolean input/output

Communications/Default point (expandable)

18

Acc & Dec time (S)

0.1~3000s

19

Communication with host

CAN, Profibus, Modbus, RS232, RS485 etc

20

Cooling mode

Forced air cooling

21

Storage temperature

00C~450C

22

Ambient temperature

-350C~+450C

23

Ambient humidity

95%, no condensation

24

Protection grade

IP40

25

Noise

<70DB

 

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Q:Asus notebook power adapter how to open
Can only be forced to open the pants and other things wrapped around the line on the line suggested that do not casually demolition
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:The inverter flat rate transferred to 29, on the submersible pump to burn the coil ?!
1. submersible pumps are generally the problem, far away from the reflection voltage, the pump insulation breakdown, in particular, to better pump. 2. Distance away, the inverter and pump connection thicker. 3. Then on the output filter.
Q:There is no inverter comes with simple PLC programming function
The inverter is an AC speed control device, like DC speed control device, DC speed is to change the armature and excitation current, and it is the input AC through the internal circuit into DC, DC and then DC, the last DC AC output, this is the original 50Hz frequency AC can output other frequencies of alternating current, because the speed v is proportional to the frequency f, so you can set the frequency of the inverter to change the speed of the control motor. It does not have its own programming function. But there are servo drives, in fact, is a frequency converter, but can handle some of their own signals, usually from the servo motor on the encoder, and then control the servo motor to achieve precise control.
Q:2 pole 0.75 kW motor can increase the speed through the inverter?
2-pole motor speed of about 2900 r / min or so, 4-pole motor speed of about 1400 r / min or so, which are in the case of 50HZ,
Q:Can the laptop 1.3a power adapter be used on a 1.5a device?
Theoretically impossible, because the power is small, but if it is a short period of time is possible, a long time to die.
Q:Can the laptop power adapter be generic?
Not necessarily, the laptop power adapter has two interfaces for input and output. 1. Input interface is connected to the power outlet, generally divided into two holes and three holes, as well as round mouth and flat mouth of the points; 2. Output interface is connected to the computer side, size, length, diameter, diameter, the pin may have differences, common are: diameter 2.5MM, ordinary mouth, mainstream interface; OD 1.7MM, small mouth; MM, big mouth with a needle, round mouth with a needle and so on. 3. Different voltage, different brands of laptop power adapter voltage is not the same 4. Current is different, different brands of notebook computer power adapter current is not the same In summary, the laptop power adapter between the different types, basically not common
Q:In the official website to buy ThinkPad notebook, to the power adapter?
Tak City gifted, genuine low, 7 days unconditional return. 300 brand-name notebooks for you to choose.
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:Does the inverter set the number of poles to match the number of poles of the motor?
The number of motor poles corresponds to the speed of the motor, the number of poles is not set when the speed of the control error, in the high speed requirements of the transmission is not allowed.
As the leader in the field of medium Voltage Variable Frequency Drive, we have been focusing on providing the integrated solutions of automatic control and energy-saving technology etc. for customers, and its skill levels and market impact of medium voltage VFD are in the world-leading positions. We have provided products and services across more than twenty countries in six continents around the world, taking up the first market share (China) in the past nine years.

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Year Established 1998
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