High Voltage Frequency Drive 6.6KV 450KW VFD

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Tianjin
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1 unit
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100000 unit/month

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Product Description:

General  Introduction

  • 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,  medium voltage variable frequency drive has the following functions :

  • 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.

 Medium voltage variable frequency drive has the following  features:

  • 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.

 

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:Inverter signal line analog 4-20mA connection positive and negative can be reversed?
Inverter signal line analog 4-20mA connection when the positive and negative is not reversed. Inverter input analog signal is generally 4-20mA, 0-20mA, 0-5V, 0-10V and so on.
Q:How to learn the inverter debugging and design parameters
Personally think it is relatively simple, and now the inverter has been more intelligent, and some simple applications, and even do not need to set the parameters.
Q:Can the inverter stop intermittently during operation? If so, how to connect and set up
and the corresponding function of these terminals, you have to in the inverter Set up.
Q:What is the single axis of the inverter and multi-axis applications
The frequency changer mainly consists of rectification (alternating current direct current), filter, re-rectification (DC variable AC), brake unit, drive unit, detection unit micro-processing unit and so on.
Q:East yuan 7200GS inverter start 11KW 4-pole motor and 2-pole motor need to modify what parameters?
If you use the environment is relatively poor, it is recommended that you use Austrian St. sealed inverter, this inverter can be moisture, dust, water, oil, corrosion.
Q:Old printing machine transformation, 37KW6 polar frequency motor with brake, inverter 55KW, now found running,
The frequency is too low or the brake gap is small
Q:Is the laptop power adapter long-haul?
This is not good, If you need to shut down, then it is recommended that the power adapter plug from the board to pull down. Because if only pull the adapter and the computer plug so that the adapter will still have the internal current through, hear the small sound is actually the sound of the current. So it is recommended that the power adapter from the outlet on the unplugged, and the computer connected to the one do not have to pull, so that will not cause the power adapter power and convenient computer to open.
Q:Is the laptop power adapter AC and DC?
In the power adapter has a nameplate, marked above the power, input and output voltage and current and other indicators, with particular attention to the input voltage range, if the nameplate indicates that the input voltage is AC 110V, then in China's 220V mains voltage Plug it will burn.
Q:5.5 kW 4-pole motor with the fastest speed can exceed the rated speed?
Because the frequency converter can reach 60 Hz frequency, while the three-phase power supply is the standard 50 Hz. So the inverter can make the motor speed faster than the rated 1500 rpm. The fastest up to about 1800 turn.
Q:The inverter control power is also the same, the pole is not the same as the motor 6 or 4 pole can be used?
can use. But in the inverter "motor parameters" to be some changes. Such as the number of poles, rated current.

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