MV Medium Voltgae and High Votlage VFD Drives Prices 3kV 4kV 4.16kV 6kV 7.2kV Variable Frequency Drive
As the three-phase AC induction motor is simple, durable, adaptable, low price, so high-voltage high-capacity three-phase AC motor has a wide range of applications. However, due to the grid power supply voltage, frequency constant, so in many applications AC motor caused a huge waste of energy....Send Inquiry
As the three-phase AC induction motor is simple, durable, adaptable, low price, so high-voltage high-capacity three-phase AC motor has a wide range of applications. However, due to the grid power supply voltage, frequency constant, so in many applications AC motor caused a huge waste of energy. As an efficient, energy-saving, non-harmonic pollution of high-voltage high-power variable frequency drive equipment (Simple refer to MV VFD),the frequency and power of this series MV VFD will be converted to frequency, voltage are continuously adjustable power supply, to achieve motor speed operation, in a variety of complex occasions To meet the motor speed regulation and energy requirements. The series vfd is suitable for 3kV to 12KV various high-voltage motors, with appropriate control can make the motor running in the best condition. Whether it is the new system design or the transformation of the old system, the series VFD can not only play a significant energy saving effect, but also can achieve the system automation operation, improve system stability and reliability, improve production technology, increase equipment use Life, reduce system maintenance.
The series of high-voltage VFD with multi-level solution, the input isolation transformer has a number of isolated secondary winding, the secondary winding power supply for each power unit, and then through a number of low-voltage power unit in series to achieve high voltage output.
6kv Medium voltage vfd system General Specification for your reference, and other voltage,please contact us at once. 24H online.
Multi stage series superposition, AC-DC-AC, High voltage input and High voltage output
Line side converter
6KV transformer input 3AC 6KV ,Output 3(5*690V)
Motor side converter
USE Rectifier module and IGBT,output 3AC 6KV
Transformer data sheet Type of Transformer?
3AC 6KV +- 15%
Dry type transformer
H/-25°C ~ +40°C
Additional fittings: + 5% tapping
VFD data sheet
Rated input voltage
3AC 6KV +-15%
Rated voltage variation
Rated frequency variation
2AC220V ,DC24V, DC+-15V, DC5V
Auxiliary voltage variation
AFD Rated Current
Number of cells
VFD efficiency (exclude transformer)
VFD efficiency (drive and transformer)
Permissible momentary power loss
120%,10M;150% 1M,200% 1S
2 TIMES RATED CURRENT
Speed control accuracy
Degree of protection
Sound level at 1 meter
Max ambient temperature operation
Min ambient temperature operation
Humidity without condensing
<1500m(More than 1500 meters, will reduce the capacity for using)
List of Components
Micro control unit
Fiber & interface
Pls confirm if offered drive is with following features.
● Input forced air-cooling isolation dry type transformer with copper winding;
● Modular, trouble free power cell design;
● Voltage-source vfd technology with SPWM control;
● No need output filter, no stress on insulation of motor stator terminals and cables;
● No need input PF correction capacitor ≥ 0.96;
● Harmonic reflected on mains very low ≤ 3%, comply with IEEE519.
Door-mounted operator HMI (keypad) with LCD display;
Sleeve type wire marker tags applied to power and control, earth wiring;
Extensible input and output isolated signal board;
Analog signal input and output 4~20mA or 0 ~ 10V;
Switching signal input and output: Dry contact
Local or remote control signal by HMI, analog signal, digital signal, computer;
Controlling circuit with the optic fiber isolated signal;
Built-in the PID controller;
Motor and VFD protection against over load and over current, phase-loss, etc.;
Fault log with fault name, time and location, up to 10 records;
VFD operation at network, like master-slave mode or multiple VFDs operation;
Optional Various encoder interfaces;
Optional Various serial communication interfaces.
Optional Motor temperature monitoring of the stator winding and bearing.
Optional UPS unit;
Optional Short circuit and ground fault protection;