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Variable Frequency Starter
Medium voltage variable frequency starter

Medium voltage variable frequency starter

TAG: Medium voltage variable frequency starter
Product number:MV Starter
Description

Medium voltage variable frequency starter

Variable Frequency Starter is a speed regulating and starting device with combined performance of variable frequency control and variable voltage control.

Variable frequency control on low speed section (0Hz-20Hz)

Variable voltage control on high speed section (20Hz-50Hz)

On-off control on power frequency (50Hz)

  Application

   Suitable for the field with huge power motor.

   Suitable for the field which requires for large staring torque.

   Suitable for the field which requires for long period running under low speed

  Main advantage

   Large starting torque

   It can run on low speed section.

   Frequently starting is repeatable.

   Reliable running, low failure rate, low maintenance cost.

   Small volume, light weight, high performance cost ratio.

  Machine applied on

   Belt conveyor    Ball grinder     Crusher     Air compressor

Power range

3.3kV device: 800kW-3400kW

6.6kV device: 1600kW-12400kW

10kW device: 2400kW-30000kW

  Cabinet dimension

3.3kV device: 1000×2200×800 (width, height, thickness)

6.0kV device: 1200×2200×800 (width, height, thickness)

10kV device: 1600×2200×800 (width, height, thickness)

Note: The fan on the top is not figured in the dimension.

Chart 2 Specification chart for medium voltage product

Device

Voltage

Model

Motor power

Medium voltage variable frequency starter

3.3kV

3.3kV/175A

800kW

3.3kV/228A

1050 kW

3.3kV/368A

1680 kW

3.3kV/438A

2000 kW

3.3kV/612A

2800 Kw

3.3kV/752A

3400 kW

6.0kV

6.0kV/200A

1600 kW

6.0kV/425A

3500 kW

6.0kV/570A

4700 kW

6.0kV/720A

6000 kW

6.0kV/900A

7500 kW

6.0kV/1500A

12400 kW

10kV

10kV/175A

2400 kW

10kV/365A

5050 kW

10kV/680A

9400 kW

10kV/1050A

14500 kW

10kV/1500A

20500 kW

10kV/2100A

30000 kW

Main technical performance:

1. On various duty conditions (non duty, full duty, over duty150%), it still can start effectively and stably even150% Ie.

2. On any point within 5% to 40% of speed section, it can run for long period by variable frequency type.

3. With intrinsic four quadrants performance, it can satisfy the conveyor transport upward and downward.

4. It can synergistically run by the principle of “same current ratio with same power output” on the condition of one conveyor is driven by multi motors.

5. It has the functions of stepless speed control, soft stop, over load control and safety protection which required by belt conveyor.

6. The index of performance, energy saving, safety, reliability and performance cost ratio is superior to other type of motor starter.

7. There is almost no harmonic wave on uniform speed, so that there is no influence to motor torque output with low motor heating.

 

8.  Widely power range application, small power condition is applied to 100kVA/380V, large power condition is applied to 300MW/10kV.

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