AC Motor Drive MV Variable Frequency Drive 4.16KV

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Product Description:

 

Specifications of AC Motor Drive Variable Frequency Drive

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 AC Motor Drive Variable Frequency Drive

  • 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

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 AC Motor Drive MV Variable Frequency Drive

  • 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 AC Motor Drive Variable Frequency 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:Servo control system can give the inverter signal,
but want two motor synchronization, it should be impossible, the converter does not reflect so fast, and the speed is not so stable.
Q:Speed regulation method of three - phase asynchronous motor
Change the number of pole pairs can be adjusted, in the way around the stator coil through the tap method can achieve two-speed. With the popularity of the inverter, three-phase asynchronous motor speed mostly with the inverter.
Q:Motor 2 pole and 4 pole in the inverter with what set to show
There are parameters for the number of motor poles / pole pairs or the rated speed of the motor in the inverter parameters
Q:What is the IGBT? Our inverter IGBT fried,
Basically change the voltage, the voltage changes in accordance with the different frequencies, so that change the speed.
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?
That is to say that the potentiometer at both ends of the line between + 10v and -10v, tap can be given with a potentiometer to control the positive and negative!
Q:Will the motor suddenly stop when the inverter is suddenly powered down?
Generally in the absence of external brake or brake case, if the power, the motor is in a free stop state, uncontrolled,will gradually slow down to 0
Q:ASUS and dell notebook power adapter can be universal?
One, not necessarily interchangeable. Need to compare the two adapter specifications to determine: 1, the books power adapter, there are 90W and 60W of the other, some products output voltage 19V and 14V of the other. "General" conditions, as long as the output power of the adapter is the same, the output voltage is the same (current may not consider), that is, their specifications are the same, you can directly substitute. 2, however, some foreign imports of products using 110V AC products, be careful to see clearly. 3, before the use of replacement, pay attention to observe if connected to the books of the power plug specifications are different, you can not directly insert. An interface adapter can be purchased. Can also be bad adapter plug, cut into the replacement adapter; Second, for example: 1, LITEON OEM products, parameters: input AC 100 ~ 240V 1.5A, output DC 19V3.42A. Rated output power 60W; 2, ASUS books supporting products, parameters: AC 100 ~ 240V 1.5A, output DC 19V 4.74A. Rated output power 90W.
Q:Can the laptop power adapter be generic?
Not common. Different computer adapter interface is not the same, and the voltage, current is not the same. If just the same, you can use, the voltage can also be used.
Q:How to choose a power adapter
Your notebook power part of the compatibility is very good, in a certain voltage range of power can be used long, but still please note on the notebook subject.
Q:What is the difference between the electronic governor and the frequency converter on the motor speed regulation?
Electronic governor is for single-phase motor, by changing the access winding resistance and capacitance to adjust the motor speed, the speed of the power supply power for the output does not change, so this speed is not an energy Type of speed control methods, such as home for the use of fans and the like. Inverter speed is the original direct input three-phase asynchronous motor power first access to the inverter, in the inverter through the PWM and other electronic converter technology to rectify the frequency AC, inverter, become a frequency controllable AC In the input to the motor, in the motor running through the V / F control, output torque control, vector control and other control methods to adjust the frequency, change the loop current, to achieve energy-saving operation, especially in the light load energy efficiency is obvious, An energy-saving products that have been widely promoted and applied
We are a professional inverter manufacturer integrating R&D, production and sales. With an experienced R&D and production team and sophisticated production lines, our company has become a domestic first-class inverter manufacturer by virtue of advanced technology, excellent quality, scientific management and perfect service

1. Manufacturer Overview

Location Zibo, China
Year Established 2004
Annual Output Value Below US$1 Million
Main Markets Middle-East America; Mid East; Northern Europ; Africa; Southeast Asia
Company Certifications CE;ISO

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Qingdao
Export Percentage 1% - 10%
No.of Employees in Trade Department 500-999 People
Language Spoken: English; Chinese
b)Factory Information  
Factory Size: Above 50,000 square meters
No. of Production Lines Above 8
Contract Manufacturing
Product Price Range High; Average