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| GEA separator application | June 09 | 1

Retrofit of a Drive on a separator at Southcorp winery /Australia

Principle

Benefits

Features

Savings 

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| GEA separator application | June 09 | 2

Separators

– using vertical centrifugal force to separate solids from liquids

Food & Beverage

Waste Water

Industry

Marine

Oil & Gas

belt- or geardriven

AC-motor

direct driven

AC-motor

direct driven

AC-motor/PM-motor

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| GEA separator application | June 09 | 3

Benefits when using a VLT Automation Drive FC302 on a separator

 no „high temp motor“ 

no feeder tank

no contactor on the input

less downtime

smooth process control

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No high temp motor

• fast acc. time – ramp-up on current-limit

to limit starting current

to ensure fast processes

to ensure short off-times

reduced motor cost

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No feeder tank

• load sharing separator and feeder pump

safe process even at power loss

less water consumption

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No contactor on the input

• safe motor off 

 Safe torque off „STO “ with terminal 37 

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Less downtime

• fast dec. time – ramp-down on OVC and AC-brake

to ensure fast processes

to ensure short off-times

High inertia of separator bowl

Takes appr. 2,5 hours to standstill when coast*

- 50 minutes with OVC

-25 minutes with OVC and AC-brake

*55kW motor

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Less downtime

• catch a turning motor – flystart

to ensure fast processes

to ensure short off-times

High inertia !

- 2,5 hours to standstill when coasting

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Smooth process control

• disludging – fast current controller

shockload at disludging of the separator

sizing 110% overload

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Purchase vs. installed cost

250 €

800 €

600 €

40 € 200 €

1.110 €

3.000 €

0 €

1.000 €

2.000 €

3.000 €

4.000 €

 4  5  k  W

   s  t  a  n

  d  a  r  d   d  r  i

  v  e

  I  n  p  u

  t   c  o  n

  t  a  c  t  o  r

  F  e  e  d

  e  r   t  a  n

  k

  W  a  t  e  r

   /   y  e  a

  r

  R  e  d  u

  c  e  d   d  o

  w  n  t  i  m

  e   p  e

  r   s  t  o

  p

  B  r  a  k

  e  c  h  o

  p  p  e  r  /  r  e

  s  i  s  t  o  r

  A  c  t  u  a  l 

  d  r  i  v  e   c  o

  s  t

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| GEA separator application | June 09 | 11

Separators

– specialities

• direct driven – high output frequency/PM motorcontroller

2/4 pole motors 60-70Hz

AC- and PM-motors

• independent on motor supplier

Danfoss philosophy

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| GEA separator application | June 09 | 12

Separators

– specialities

• safe speed monitoring – SLS

Safe Limited Speed new B-option*

to avoid the risk of mechanical destruction

*available 2010

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| GEA separator application | June 09 | 13

Separators

– usefull features

• Full protection on Exde-motors

MCB 112

saves the contactor on the input

saves panel space

saves installation cost

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| GEA separator application | June 09 | 14

Separators

– usefull features

• Know How protection

Extended PW-protection

protects the business – also service