07/03/2015

Unit 6 Optimisation Summary Programme
Average Load (MW)		Activity
Lower limit	Upper limit

200

400

Unit on load and stable - Mill 40 commissioning (hot)

ACTUAL:

-          Situation at 7:00 Boiler drained

-          Aux boilers drained (Aux boilers also contaminated)

-          7:00 1st aux boiler Start

-          Next turbine start expected 07/03/2015 13:00

-          20:00 Boiler and turbine ready to start after several drains due to high conductivity

-          Expected boiler start 08/03/2015 4:00

-          Expected turbine start 08/03/2015 7:00

LOAD PROFILE FROM DCS 

06/03/2015

Unit 6 Optimisation Summary Programme
Average Load (MW)		Activity
Lower limit	Upper limit

200

300

Unit on load,  2 mills in services, commission HP and LP heaters

-           

     ACTUAL

 

-          7:00 Turbine ready to start as per Eskom schedule, boiler not ready due to problems at the mills (no details given to us)

-          7:40 One mill started

-          9:36 Turbine start

-          9:42 Turbine @ 3000 RPM

-          9:51 Synchronization

-          10:26 Load 190 MW

-          10:48 Load 230 MW

-          Commissioning of LP Heaters 2 and 3

-          11:41 Second mill in service

-          12:16 Load 300 MW

-          12:25 Mill 30 trip

-          Plant shut down for LCM filters cleaning

-          19:00 LCM filters clean, turbine ready for start

-          19:00 Water analyse show high content of silica (4x over acceptable value), boiler must be drained

-          Next start expected 07/03/2015 7:00

LOAD PROFILE FROM DCS 

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