TEST ON NEW GENERATOR SETS

1) Load Tests -

The engine shall be started cold and after the preliminary warm up period, the generator set tested continously, for 1 hour each at 50%, 75% and 100% full load, and followed by a 10% overload run for 1 hour duration.

2) Fuel Consumption Test -

During the above load test, the fuel consumption tests shall be performed continuously at 50%, 75%, 100% and 110% of the full load.

3) Transient Tests -

Transient tests from no load to 25%, 50%, 75% and 100% of full load shall be carried out. This shall be followed by full load rejection tests.

The Contractor shall provide a high speed recorder for these tests. The transient voltage dip on load application, transient voltage overshoot on load rejection and the recovery times shall be recorded.

The amount of transient voltage dip on sudden full load application shall not exceed 15% while the amount of transient voltage overshoot on full load rejection shall not exceed 20%.The time for voltage recovery to within 3% of the original voltage level shall not exceed 0.25 seconds on load application and 0.5 second on load removal.

4) Safety Control Tests -

The engine safety control devices shall be tested to initiate the alarm and automatic shutdown of the engine under following tests :-

- Overspeed
- High temperature in cooling water
- Low lubrication oil pressure

The high cooling water temperature, low oil pressure and insulation tests shall be conducted in accordance with B.S. 4999 and B.S. 5000 or the relevant IEC Publication.

5) Insulation Tests -

- Insulation resistance of rotor, stator and exciter to earth.
- Insulation resistance between the stator windings.

Source - Technical Specifications for Diesel Generating Sets / PT. Boustead Indonesia Management Consultancy Services