1. 1.1 To carry out commissioning on dual fuel turbine driven generation powerplant and electrical distribution equipment at the fabrication yard prior to installation in the UK sector of the North Sea.

  2. 1.2 To achieve this objective it was decided in the early stage of design to install the main generators, switchgear and all necessary controls for the mainpower distribution in one Module.


  1. 2.1 The module was divided by a mezzanine floor on the lower level was installed the five main dual fuel turbine driven alternator units, with their associated control equipment.

  2. 2.2 On the mezzanine floor the high and low voltage switchgear was installed, along with the main transformers, synchronising panel and battery charger and batteries for the switchgear tripping and closing circuits.

  3. 2.3 For layout see Appendix 11.2

3.1 Main Turbine/Generators

The main turbine/generator units consisted of five Ruston TB:5000 turbines, with GEC Ltd alternators rated at 3.2 MW at 6.6 KV, 60 HZ, 0.8 pf.

3.2 High Voltage Switchgear/MCC

The High Voltage Switchgear and Motor Control Centre consisted of one complete unit, with the switchgear section located in the centre and the motorcontrol centres to the right and left.

3.2.1 High Voltage Switchgear

The switchgear section consisted of 15 oil circuit breakers of GEC Ltdmanufacture type BVP-17 Bus bars rated at 1600 Amps, 6.6 kv Fault Rating 250MVA, 22 KArms Assymetrical Peak KA 56 KAp

This content is only available via PDF.
You can access this article if you purchase or spend a download.