Greencisco Industrial Co., Ltd.

Medium-voltage Frequency Converter Drive

Medium-voltage frequency converter drives are widely Widely used for induced draft fan, forced draught fan, primary fan,secondary fan, feed water pump,circulating pump,condensate pump, mortar pump,compressor, boiler,feed water pump,ect.

Characteristics

Application
Widely used for oil and gas field: water injection pump,fuel supply pump,gas and oil pump,electric submersible pump,LGN,pressure pump,petroleum,petrochemical, pipeline
Power and electricity: induced draft fan, forced draught fan, primary fan,secondary fan, feed water pump,circulating pump,condensate pump, mortar pump,compressor, boiler,feed water pump
Metallurgy:sintering drawing fan, blast furnace blower, dusting blower,sulfur dioxide blower,ring cooling fan,combustion fan,slag washing pump,combustion fan,circulating pump,chemical liquid pump,dephosphorization pump,slurry pump,rolling mill,dust blower,ect.
Mining and cement:Exhaust fan at furnace head, high temperature fan,exhaust fan at furnace end, coal mill dirculating fan,raw mill circulating fan, cement mill circulating fan,ball mill fan,porcelain, fan for klin,high temperature
Municipal engineering:sewage pump, clean water pump, purifying pump, mixed-flow pump,oxygen blower
Chemistry and others: gas blower, roots blower, dusting blower,gas compressor,nitrogen, CO2, ammonia,sweetenfan,circulating pump, pressure pump, axial flow Sugar industry: feeder and presser,pharmaceutical,pharmacy and paper making: fan and water pump,rubber and plastic industry: internal mixer,forced fan, main ventilator, exhaust fan, air compressor, gas drainage pump,medium pump, draining pump, belt conveyor, roller press, primary and secondary mine hoist,feed water pump, ect. 
Introduction
Our vector control medium-voltage frequency drive that adopts advanced input phase-shifting rectification, innovative bridge inverter technology and optimized series superposition technology. It has the characteristics of high output power factor and low harmonic interference. The input and output current waveforms are very close to sine waveform, its "perfect non-harmonic" frequency converter.
Our MFD2 series medium-voltage frequency converter has the advantages of long-term stable and reliable operation, precise control,and pumps in industrial and mining enterprises, and reducing the operating and maintenance costs of the system, enhance the competconvenient maintenance, high operation efficiency and simple operation, significantly improving the operating conditions of motors, fans itiveness in production process and application of frequency converters.
Features
●Vector-control technology of frequency drive improves the control performance, especially in the non-fan pump operating conditions.
●Master-slave control and automatic control of power balance function, suitable for multi-motor system operating conditions, such as mine belt conveyor.
●Completely forward and reverse speed tracking start, waiting-time is reduced.
●Low-frequency and high-torque start-up, over-excitation deceleration further optimizes the start-up and stop time to meet the needs of special operating conditions.
●The control system adopts the serial structure of touch screen + PLC + main control board, reduces the data circulation, balances the data processing pressure of each module,and adopts serial communication in data transmission, which enhances the anti-interference ability of the system and ensures the long-term stable operation of the system.
●The main control core adopts the three-core combination control of DSP-ARM-FPG GA, integrating the most advanced motor vector control algorithm. The DSP with 100M frequency realizes the high-speed data processing and ensures the real-time performance of the system;The internal logic clock of FPGA is as high as 150M. The communication between modules is without delay, the data parallel processing speeds up the logic operation and the system protection.
●The simplification of the control system further reduces the quantities of peripheral devices, reduces the failure, and makes the long-term operation more reliable.
●The fiber-optic communication and optocoupler isolation ensures the complete isolation of strong and weak current, making the system more secure and reliable without interference.
●Because of the phase-shifting rectifier transformer which is used, the frequency converter will not produce obvious harmonic distortion to the power supply network.
●The design of machine structure is compact, reasonable layout, unique filter design which can make replacement of filter cotton during operation safely and reliably.
●The output current waveform is close to sine waveform, the harmonic content is < 2% , and the output efficiency is > 97%.
●The input power factor is 0.96, its no need of a compensation device of power factor for operation.
●The self-diagnosis and protection function of the fault is perfect, which can realize the long-term stable operation of the system.
●The control system is supplied by double power supply to ensure no power loss during the operation of the system.
●With friendly interface for English and Chinese parameter setting and fault checking.
Specification

Model No.

MFD2-3KV

MFD2-3.3KV

MDF2-4.16KV

MDF2-6.6KV

MFD2-10KV

MFD2-11KV

Input Voltage

3KV

3.3KV

4.16KV

6.6KV

10KV

11KV

Capacity (KW)

From 200KW-12500KW

Voltage Range

-15%- +10% / 3PH

Input Frequency

50/60Hz

Input Power Factor

>0.97

Efficiency

>98%

THDi

<2%

Output Voltage

From 0 to rated input voltage

Output Frequency

From 0 to 120Hz available

Output THD

<2%

Control Mode

Vector frequency control/Vector SVC/Vector VC

Speed

FC(1:50±1%)/SVC(1:100±0.4%)/VC(1:200±0.2%)

Torque Response
Time

<100ms

Torque Starting

150% rated capacity of SVC for 0.5Hz, 180% rated capacity of VC for 0Hz

Overload

120% for 2 minutes, 150% for 5 sconds

Acc time/Dec time

0-3600 seconds

Communication

8 signals input, 8 dry contacts outputs(can be programmed),Support RS485 modubus,profibus,profnet,GPRS

Analog Input

0-10V/0-20mA, -10V/+10V

Analog Output

0-10V/0-20mA

High Speed Pulse
Input/Output

0-50KHz

Protection

Overvoltage,overcurrent,overload,overtemperature,communication fault,door fault,sensor fault,short of phase

Display

LCD Display

Protection Class

IP30(indoor type)

Starting Mode

Soft- starting

Noise

 70db

Cooling

forced fan

Aux Control Power

AC380V/3Phases/-+10%

MTBF

100000hours

Environment
Temperature

-5°C to +40°C maximum without de-rating

Insulation

Class H

Alititude

1000M

Humidity

0-95% with no condensation

Compliance

IEC60721-3-2-1997,IEC60721-3-3-2008,IEC61000-2-4-2002,IEC61000-4-7-2002,IEC guide 106-1989
IEC60721-3-1-1997,IEC60076,GB156-2007,GB/T1980-2005,GB/T2423.10,GB/T4588.1-1996,GB/T4588.2
GB7678-1987,GB10233-2005,GB12688.3-2003,IEC61800-3-1996,GB/T15139-94,GB/T13422-92,GB12326
GB1094.1-1094.5,GB6450,GB/T10228,GB17211,GB/T14549-1993,GB/T12688.4-2006,IEC61800-4-2002
IEC60664-1-1992,GB/T2900.18-2008,GB/T3859.1-1993,GT/T3859.2-1993,GB/T3859.3-1993,IEC60529-1989