High Voltage Frequency Drive 6.6KV 450KW VFD

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Tianjin
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Min Order Qty:
1 unit
Supply Capability:
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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