Variable Frequency Drive 3.3KV 400KW Inverter

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General


CNBM high Voltage Variable Frequency Drives are designed to be highly reliable with high-performance, yet easy to use.It can satisfy users' need for changing the speed of fans or pumps,as well as improve the productivity.

The series are compatible with all types of three-phase medium voltage asynchronous motors.

 

Specification and advantages :

 


1. Voltage resource VFD, direct input of 3,3.3,4.16,6,606 and 10 kV,direct output of3,4.16, 6,6.6 and10 kV,no output transformer necessary. High input power factor, low harmonic current, no power factor corrective capacities and harmonic filters required.
2. Sinusoidal multi-level PWM output waveform, no output filter required, can be directly connected to standard induction motor,no harm to the insulation of the cable or the motor, low harmonics of the motor, reduction of vibration of the shafts or the vanes,with the maximal length of the output cable of 1000m.

3. Friendly human-machine interface.
4. Modular design of the power circuits simplifies maintenance routine.

5.The medium voltage circuits are linked with the controller by the optical fibers,which keep the controller safe and away from the disturbance.

6. The complete fault monitor circuit, accurate fault alarm and protection.

7. Integrated cooling blower

8. The control logic can be conveniently changed with the help of the integrated PLC.

9. Offer both field control and remote control in monitor station, providing convenient controlling options.

10. Support most of the industrial standard protocols (Profibus, Modbus, TCP/IP, etc.)

11. Compatible with industrial standard signal of 0-10V/4-20mA

12. Able to operate at either open loop control or closed loop control status with the integrated PID regulator.

 

Specification

 

Model

A03/050~
A03/100

A03/100~
A03/175

A03/175 ~A03/220

A03/220~A03/400

A03/220~A03/610

Capacity(kVA)

250~630

630~900

900~1150

1150~2000

2000~3125

Rated output current (A)

50~100

100~175

175~220

220~400

400~610

Motor power (kW)

200~400

400~710

710~900

900~1600

1600~2500

Input frequency

45Hz~55Hz

Rted input voltage

3000V±10%

Input power factor

0.95 (>20%load)

Efficiency

0.96 with rated load

Output frequency

0.5Hz~120Hz

Frequency resolution

0.01Hz

Overload capacity

120% 1 min, 150% immediately

Analogue input

0~10V/4~20mA

Analogue output

0~10V/4~20mA

Acceleration/deceleration time

0.1~3000s

Digital output/input

expanded according to requirement

Ambience temperature

0~40°C

Storage/transport temperature

-40~70°C

Cooling

air cooling

Ambience humidity

<90% without condensation

Altitude

<1000 m

IP class

IP20

Size(mm)(W×H×D)

3300×2480×1200
3900×2480×1200

4900×2480×1200
6000×2580×1200

6000×2580×1300

Weight (kg)

3000 ~5000

5000 ~7300

7300~9200

 

 

 

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Q:My inverter is the era TVF8000 series, the motor is 15KW6 pole motor, has been used for 3 years.
Motor current when the current 10A this has no effect on you, the rated current is 31.4A, your inverter is selected how many W, is the fan pump type or universal? Now the motor operating current reached 34-35A, more than the rated current, then the motor may have two problems, one is the motor leakage powerful, and in a motor is overload, resulting in increased current
Q:The Schneider inverter reports the nlp command
1, the inverter control circuit with an external 24V power supply, the main circuit did not power 2, PO and PA between the short film can not cause this failure.
Q:Will the motor suddenly stop when the inverter is suddenly powered down?
but there are exceptions, such as head pump, water hammer effect after power failure will make the motor Reversal
Q:What is the difference between variable frequency motor and variable speed motor?
Give you a formula, you can understand their speed control principle: N (speed) = 60f (frequency) divided by P (magnetic pole logarithm) According to the formula, when you want to change the motor speed, there are only two ways to change The number of pole pairs and the frequency of the power supply. Speed ​​motor is variable pole speed, that is, in this motor has 2 to 3 sets of windings, by changing the winding connection, to change the motor pole to change the rotation speed.
Q:Speed of 3000 r / min three-phase motor how to change its speed
Speed of 3000 r / min three-phase motor speed: Variable pole speed Change the motor stator winding wiring way to change the motor pole number, which can be level to change the synchronous speed, to achieve a variable speed motor speed. This type of speed motor currently has a series of products to choose from, such as single-winding multi-speed motor. Frequency Change the asynchronous motor stator terminal input power frequency, and make it continuously adjustable to change its synchronous speed, to achieve the motor speed control method known as frequency control. The most energy efficient is the frequency conversion motor, but the need to install the inverter in the power part of the cost is too high.
Q:Whether the inverter can control the start and stop of the horizontal monopole centrifugal pump
Inverter general control object is the AC motor, you are the AC motor, then the general inverter will be able to achieve start and stop, select a reasonable power section, a reasonable set of start and stop time can be very good drop protection motor. Can also achieve speed control function.
Q:Why G120 inverter to be equipped with 4-pole motor?
I add point with the premise of the inverter is to understand the mechanical load characteristics (or process, etc.), can the parameters set.
Q:Which machines are used for the frequency converter
Frequency converter is widely used in the speed regulation of AC motor.Varameter speed control technology is an important development direction of modern power transmission technology, with the development of power electronics technology, AC frequency conversion technology from theory to practice gradually mature. Inverter not only smooth speed, large range, high efficiency, start current is small, smooth operation, and energy saving effect is obvious. Therefore, the exchange frequency control has gradually replaced the traditional traditional slip speed, variable speed control, DC speed control system, more and more widely used in metallurgy, textile, printing and dyeing, smoke machine production lines and buildings, Water supply, air conditioning and other fields.
Q:Motor 2 pole and 4 pole in the inverter with what set to show
The inverter has a parameter that requires you to enter the number of motor poles, see the direct input of the number of poles
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,

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