Variable Frequency Drives Suppliers and Manufacturers

Variable Frequency Drives

A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive, adjustable speed drive, adjustable frequency drive, AC drive, microdrive, and inverter. Brands we sell : Siemens, ABB, Schnieder, Chint, LEgrand, Havells, INVT, Delta etc Application : Any kind of application related accept : TT, Paypal, LC, CFR, CIF etc

• ever higher performance for your motors assured by: - the factory settings, which provide a high quality drive from the very first time the power Is turned on - the integration of standard (u/f), performance (sensorless flux vector control, or svc) And pump/fan (quadratic profile kn²) control profiles - high dynamic performance on acceleration as well as on braking - excellent speed regulation on machine load surges • reduced noise and maintenance: - no fan on models up to 0.75 kw at 240 v - cassette type fan, operates automatically on detection of specific temperature setting • designed for easy fitting and wiring of the drive: - a single tool - power terminals not tightened, ready for wiring - easy access angles - numerous, easy to identify markings • fast detection and protection against the motor current peaks associated with certain Applications (motor switching, catching on the fly, etc.) • perfect integration of single-phase 240 v model into the electrical network thanks to Its built-in emc filter

Medium voltage variable frequency drives Product Structure Sinopak MVVFD includes integrated structure and split-type structure based on capacity. The integrated structure is adopted in low capacity MV VFD and the split-type structure is adopted in high capacity MV VFD. In terms of an integrated machine, which is compact in size, phase-transformer, power units, control systems, and power frequency bypass are fully integrated into one cabinet; In terms of a split-type machine, phase-transformer, power units, control systems and power frequency bypass are assembled in separate cabinets in which are combined on the spot. Technical Parameters Medium voltage input 3KV, 3.3KV, 4.16KV, 6KV, 6.6KV, 10KV, 11KV (-20%~+15%) 50/60 Hz±10% Medium voltage output 0~Rated voltage 0~50/60 Hz, 0.01 Hz Multilevel PWM sin wave, total harmonic distortion (THD) < 4% Performance Inversion efficiency at an rated load > 98.5%, overall efficiency (including the transformer) > 97% Power factor (within the range of speed regulation) > 0.95, power factor (at a rated load) > 0.97 Overload capacity: 110%: long-term stable operation, 120%: 1 minute, 150%: 2 seconds, and 160%: prompt protection Allowable outage duration: 200 ms (and longer under light load) Mean time between failures: > 100,000 hours Control mode: flux optimization and control with space vector PWM Acceleration/deceleration time: 1 to 3,600 seconds Switching quantity input/output:11-way/10-way Analog input: 4-way (optional: 0 to 5 V, 4 to 20 mA) Analog output: 3-way (optional: 0 to 10 V, 4 to 20 mA ) Communications: RS485 interface, Modbus-based (optional Profibus-DP and Ethernet interfaces) Control power supply: Single-phase 220 V AC, 5kVA Excitation control ( dedicated for the synchronous motor) Automatic excitation control, manual excitation control, multi-stage speed excitation control, and external excitation control for the MVVFD Environment: Operating in indoor environment without explosive or corrosive gases, conductive dust, or oil fog Operating ambient temperature: 0 degree~+45 degree Storage and transportation temperature: -40 degree ~+70 degree Ambient humidity: < 90% (No condensation) Operating altitude: Derating required for an altitude greater than 1000 meters Protection function: Overcurrent, overload, short circuit, three phase current unbalance, immediate electric outage, input/output phase loss, overvoltage, undervoltage, body overheat, transformer overheat, shutdown due to external fault, and power unit auto bypass Cooling mode: Forced-air cooling User interface: An 10-inch Human Machine Interface Protection grade: IP31

Medium voltage variable frequency drives Product Structure Sinopak MVVFD includes integrated structure and split-type structure based on capacity. The integrated structure is adopted in low capacity MV VFD and the split-type structure is adopted in high capacity MV VFD. In terms of an integrated machine, which is compact in size, phase-transformer, power units, control systems, and power frequency bypass are fully integrated into one cabinet; In terms of a split-type machine, phase-transformer, power units, control systems and power frequency bypass are assembled in separate cabinets in which are combined on the spot. Technical Parameters Medium voltage input 3KV, 3.3KV, 4.16KV, 6KV, 6.6KV, 10KV, 11KV (-20%~+15%) 50/60 Hz±10% Medium voltage output 0~Rated voltage 0~50/60 Hz, 0.01 Hz Multilevel PWM sin wave, total harmonic distortion (THD) < 4% Performance Inversion efficiency at an rated load > 98.5%, overall efficiency (including the transformer) > 97% Power factor (within the range of speed regulation) > 0.95, power factor (at a rated load) > 0.97 Overload capacity: 110%: long-term stable operation, 120%: 1 minute, 150%: 2 seconds, and 160%: prompt protection Allowable outage duration: 200 ms (and longer under light load) Mean time between failures: > 100,000 hours Control mode: flux optimization and control with space vector PWM Acceleration/deceleration time: 1 to 3,600 seconds Switching quantity input/output:11-way/10-way Analog input: 4-way (optional: 0 to 5 V, 4 to 20 mA) Analog output: 3-way (optional: 0 to 10 V, 4 to 20 mA ) Communications: RS485 interface, Modbus-based (optional Profibus-DP and Ethernet interfaces) Control power supply: Single-phase 220 V AC, 5kVA Excitation control ( dedicated for the synchronous motor) Automatic excitation control, manual excitation control, multi-stage speed excitation control, and external excitation control for the MVVFD Environment: Operating in indoor environment without explosive or corrosive gases, conductive dust, or oil fog Operating ambient temperature: 0 degree~+45 degree Storage and transportation temperature: -40 degree ~+70 degree Ambient humidity: < 90% (No condensation) Operating altitude: Derating required for an altitude greater than 1000 meters Protection function: Overcurrent, overload, short circuit, three phase current unbalance, immediate electric outage, input/output phase loss, overvoltage, undervoltage, body overheat, transformer overheat, shutdown due to external fault, and power unit auto bypass Cooling mode: Forced-air cooling User interface: An 10-inch Human Machine Interface Protection grade: IP31

AC Drive. VFD (Variable Frequency Drive ) I Am A Distributors IN "KUNNAL" BRAND WE SUPLY TO BELLOW MODLE VFD 1 HP UPTO 100HP , ALL READIEST STOCK

Kecen KCM100/KC500 High Performance Vecter Variable Frequency Drive /Frequency Inverter / VFD/ AC drive (0.75KW-560KW /Output 3 Phase/ 220V/380V) for Motor /Fan pump / Water pumps /Blow molding machine/ Air condition / CNC/ Washing Machines/Transfer Machines/Crane/Blender/Spinning machine/Lathe/Papermaking machinery/Elevator/Stereo garage.

25kw 3 Phase AC 380V Variable Frequency Drive Inverter Bangzhao pure sine wave series inverter is one of the most advanced DC to AC conversion products in the world, it has the main advantages of high quality sine wave AC output, microcomputer control, humanness design, and it is simple, stable, no noise and no pollution. It is suitable use for areas without electricity, vehicles, ships, solar energy, wind turbine etc. The inverter can also supply AC voltage to all kinds of power tools, air conditioners, electric motors, refrigerators, fluorescent lights, televisions, electric fans and other power supply. The inverter output waveform is pure sine wave; this kind of AC power is suitable for most industrial electronics and home appliances, the power supply features much better than other modified sine wave and square wave. Technical Features:   * Using the fifth generation efficient IPM intelligent module from Japanese Mitsubishi, high efficiency and stable performance. It with powerful protection function, the protection for short circuit, over load, over temperature is more safe and reliable. It's service life can up to 15 years or more. *Two kinds of start mode: Reduction Voltage Start and Variable Frequency Start. Customers can set start mode according to the type of their load. This function is very convenient for users and also reduce frequency converter's usage, which reduced the cost of equipment investment, easy to connect wires and control. * Pure sine wave output with good transient response, little harmonic distortion, higher conversion efficiency and stable output voltage features. *Adopted low frequency isolated transformer, high conversion efficiency and stable performance * Output AC Power is suitable for all types of home appliances, electric tools, electric motors etc. * Converter has the function of filtering the grid disturbance and interference at the same time, which is a good performance of stabilized voltage and frequency power, to provide a more stable and pure power supply environment for the backend devices * Safety and reliable, the input single-phase electric and output three phase electric is complete electrical isolated. * Pure sine wave output, has higher efficiency and higher capability of driving load. *Output perfect protection function, with output over-voltage, overload, short circuit, over temperature, self-diagnosis protection and other protection * Powerful data display function. LCD can display the DC input voltage, output frequency, phase voltage, phase current, AC bypass input voltage, output power KWH, time and date, temperature, fault code display. * The input voltage, output voltage, frequency and phase can be custom made.

Our general purpose heavy-duty vector Variable Frequency Drive (VFD) provides sensorless vector control in machining tools, ceramic machinery, hoisting cranes, air compressors, and other tools in petroleum and chemical, textile, and engineering industries. Sustainability, flexibility, and ease of use are all designed into the drive, helping you make complicated tasks simple. With high torque and failure-free operation, the VFD is efficient and flexible in its application and features overload and current-limiting safety features. You can count on our drive series for constant, high quality performance.

General purpose inverter: KE200,KE300, KE600 series; Power rating: 0.4KW to 1200KW Voltage: 220V to 660V Control mode: V/F control, open-loop vector control & close-loop vector control Different power rating with different packing.

Alpha6000 series ac drive is a new generation product with not only good appearance but also advanced performance, powerful functions, reliable quality, and superior workmanship. Its design is with thoughtful considerations to power grids of different countries and wide application range. Technical features Applications Industrial washing machines, plastics machines, mining, conveyor belts, printing machines, Packaging machines, paper machines and so on. Carton and wooden packaging.

Detailed Product Description PI7600 series energy saving (frequency inverter AC drives) Main technical features: 1) Power range: 0.75~11KW 2) Voltage: 3AC 220/380/440V -15%~15% 3) Output frequency: 0.00 ~ 800.00Hz 4).Central control module based on DSP,realizes high-speed and high performance control. 5).Integrate V/F control,V/F+PG control,vector+PG control. 6).3 space voltage vector waveform produce methods. 7).Dead compensate function,realize low frequency and large output torque control. 8).Automatic slip compensate . 9).At most 7 steps speed control and 8 steps acceleration control can be realized. 10).6 programmable output control terminals. 11).Internal PID function,realize high performance closed loop control. 12).PID regulate DC braking. 13).Speed pursue starting and restart after momentary power loss. 14).Forced communicated function ,support standard RS485 and Can Bus,supply remote keyboard control function. 15).Special converse module (IGBT) temperature control function,adjustable fan control,timely reduce motor noise and temperature. 16).High-efficient faults inquiry and record function ,conveniently obviate the fault. 17).paramater protection function 18).Unique design,make frequency converter least pollution to the power. 19).Outstanding behave 3-phase AC synchronous motor of permanent magnetism control. 20) Control mode: Vector control with PG (VC), sensorless vector control (SVC), V/F control 21) Overload capacity: 150% rated current for 60 s (SVC), 180% rated current for 10 s (VC) 22) Multi-functional Quick/Jog key: Access common used parameter quickly 23) Ambient temperature: -10~40 degree 24) Altitude: 0~1000 m, 1000~4000 m with derating 25) 30 kinds of protection function 26) User can plug in option card to achieve specialized inverter for different application 27) Avoid high temperature and moisture and avoid being wetted due to raining, with the humidity below 90%RH (not dewing). Typical application:Injection molding machine, Air compressor, Pressing machine, Air conditioner . Paper Carton.

Vector Control 1 Offering excellent vector control performance and insensitive to motor parameters. Startup torque: 0.50Hz 180% rated torque Speed adjustment range: 1:100 Speed stabilization precision: 0.5% 0.50Hz controlble motor stable operation with 150% rated torque. Vector Control 2 (Without Encoder Speed Feedback) Precise speed sensorless vector control technology realizes AC motor decoupling, enabling the DC motorization of operation control. Startup torque: 0.25Hz 180% rated torque Speed adjustment range: 1:200 Speed stabilization precision: 0.2% 0.25Hz controllable motor stable operation with 150% rated torque. Application: Knitting Machine, compressor, extruding machine, injection machine, motor, braiding machine, pressure fan, forced draught blower, blower, blowing machine, blow molding machine, root's blower, film blowing machine, cutter bar, cut-off machine, slitter, Cutting machine, conveyor, pump, grinder, cluster, glazing machine, polisher, polishing machine, laundry-drier, drying machine, ball crusher, ball grinding mill, drawing machine

Variable Frequency Drive.

Used variable frequency drives.

Frequency inverter , variable frequency drive.

Variable frequency drives & plc, hmi.Trading & technical services

Variable frequency drive, VFD,VSD, Frequency inverter.

ET1000 SERIES General-purpose frequency inverter 220V( single phase power) 0.4-2.2 kw 220V(three phase power)0.4-75kw 380V(three phase power)0.75-1000kw . V/F control mode brings the same feeling as vector inverter control 1, Low output harmonic prolongs lifetime of motor. 2, Auto-adjust carrier frequency according to module temperature to adapt the environment. 3, Super low carrier frequency technology effectively reduces inverter output current leak. 4, Flexible multi-steps V/F control mode. 5, Perfect auto-improve torque function. Auto- supply super startup torque function. The most strong environment adaptability. 1. Wide voltage range and voltage modulation technique ensure the carry capacity. Functions as anti-surge (thunder induction), anti-noise and static resistance have reached strict industrial standard. 2. All standard products are processed with three “proof” lacquer to stand in occasions with high humidity and where the rate of dust exceed standard. More strict treatment will be adopted for more strong protection function to work in worse environment. 3. All series products adopt independent cooling channel designing. Middle or high power inverters adopt hermetic style designing to work in worse environment. Instant break protection and no stop function It will use motor reborn energy while meeting instant power break. The inverter will continue to work while power on again. (Take air condition energy saver or fan as example as below) Perfect functions; wide using range Wobble: Used in occasions where needs wobble control mode, such as textile, fabric. According to the parameters, freely set the range, speed, frequency. Wobble output frequency Strong communication function Master-slave communication is based on international standard ModBus communication protocol. Centralized control is carried out via PC/PLC, upper machine and master inverter (By set control order, running frequency, corresponding parameters modification, monitoring of the running state and malfunction information) to satisfy the specific requirement. Simple PLC. Up to 15 steps speed control Above 160kw standard DC reactor adaptor Above 160kw standards DC reactor brings super low input harmonic and supper high input power factor to protect the power grid very carefully. Universal DC master line technology More energy saved; Better environment protect function; More economical. Rich of terminal function Outside terminalVS1: 0-10v, outside terminal VS2:-10V—10V. Outside terminal AS:4—20Ma, RS485, frequency pulse input; Other functions includes startup, stop, positive turn and reverse, jog, multi-steps speed, free stop, reset, choice of acceleration time and deceleration time, frequency setting channel choice, alarm for outside malfunction; relay output, collector output, 1-10v output, 4-20mA output, frequency pulse output and so. Quick and stable PID control function Multi PID control modes: common PID and PID special for press closed-loop. Wider using range and more customized. Carton packing with foam inside.