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Dear Sirs
Our company is now working in a production capacity debottlenecking of one of our Polyethylene facilities. One of the main equipment's involved in the project is an extruder, driven by a DC motor.
We will need to increase the power capacity of the motor and we are now considering the alternatives to the use of a DC motor with
variable speed control. Motor power will be 2750KW. Supply voltage available is 6.9KV with option to use reducing transformer.
Basically we see 3 possibilities for this which are:
1) Keep using a DC motor
2) Use a induction motor with a frequency converter
3) Use a synchronous motor with a cycloconverter
We are aware of the higher maintenance requirements of a DC motor over other technologies.
I would appreciate your feedback regarding the advantages and disadvantages of each alternative.
Thanks in advance for your attention.
**********************************************************************
*** Luiz Antonio Dourado Goncalves - POLITENO Ind. Com. S.A.
Eng. de
Eletricidade e Instrumentacao (Electrical & Instrumentation
Engineer)
[email protected] http://www.politeno.com.br
Camacari -
Bahia - Brasil
**********************************************************************
****
Our company is now working in a production capacity debottlenecking of one of our Polyethylene facilities. One of the main equipment's involved in the project is an extruder, driven by a DC motor.
We will need to increase the power capacity of the motor and we are now considering the alternatives to the use of a DC motor with
variable speed control. Motor power will be 2750KW. Supply voltage available is 6.9KV with option to use reducing transformer.
Basically we see 3 possibilities for this which are:
1) Keep using a DC motor
2) Use a induction motor with a frequency converter
3) Use a synchronous motor with a cycloconverter
We are aware of the higher maintenance requirements of a DC motor over other technologies.
I would appreciate your feedback regarding the advantages and disadvantages of each alternative.
Thanks in advance for your attention.
**********************************************************************
*** Luiz Antonio Dourado Goncalves - POLITENO Ind. Com. S.A.
Eng. de
Eletricidade e Instrumentacao (Electrical & Instrumentation
Engineer)
[email protected] http://www.politeno.com.br
Camacari -
Bahia - Brasil
**********************************************************************
****