Replacement Generator Velsen 24
The blast furnace gas fired power plant in Velsen (VN24) is located in the north of the Netherlands along the
“Noordzee kanaal”. The unit with a capacity of approximately 459 MW has been commissioned in 1974 and
has been in operation until December 2012 for more than 200.000 hours. The lifetime of the entire unit will be
extended till 2026. It has been decided that the current 550 MVA, 21kV, cos φ 0.8, 50Hz, H2 directly cooled
generator will be replaced.
It has been decided to start tendering for an air-cooled generator minimal 310 MVA, cos φ 0.8 and 50 Hz including excitation system which
should replace the current THDD 115/59 generator.
In addition to the design of the new generator special attention has to be paid to;
.Removal of all existing systems which become obsolete.
.Meeting the sound limits and other emission limits resulting from the environmental permits.
- the foundation and the static and dynamic loads induced on it
- the coupling with the existing steam turbine
- connection to the existing cooling system (condensate)
- connection to the existing lubrication system
- connection to the existing electrical system
- Replacement of the existing excitation system with a new system.Either a dynamic or static system is possible.
- integration within the existing electrical system (short-circuit power, load flow calculations etc)
- integration into the existing DCS
- adjustments to the generator protection
- adjusting steam turbine control/protection due to the smaller rated power of the generator
When the offered product has a different rated voltage than 21 kV +/- 10 % then additional measures should
be considered to comply with the requirements of the Dutch grid-, system- and metering code as issued by the
Netherlands Competition Authority such as:
- Replacement of the step-up transformer
- etc
Replacing the generator must not adversely affect the vibration levels of the powertrain.
Deadline
De termijn voor de ontvangst van de offertes was 2013-04-19.
De aanbesteding werd gepubliceerd op 2013-03-01.
Wie?
Wat?
Waar?
Aankoopgeschiedenis
| Datum |
Document |
| 2013-03-01
|
Aankondiging van een opdracht
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