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SOP for Diesel Generator Set (DG)


Standard operating procedure of maintenance and start the diesel generator in different modes i.e manual and auto.

1.0 OBJECTIVE:

      To lay down procedure for diesel generator set (DG).

2.0 SCOPE:

      This SOP shall be applicable for diesel generator set in utility block.

3.0 RESPONSIBILITY:

      Officer/Engineer/Executive

4.0 ACCOUNTABILITY:

      Head of Engineering

5.0 PROCEDURE: 

5.1 FOR STARTING DIESEL GENERATOR SET IN MANUAL MODE

5.1.1 Check fuel level into the diesel service tank.
5.1.2 Check battery voltage on the alternator panel. It should be 23 to 26 volts DC.
5.1.3 Check coolant level into the radiator.
5.1.4 Start lubricating pump by pushing its “ON” button on the breaker panel.
5.1.5 Release the Red Color Emergency Push button and reset the D.G Set by pressing the Reset Button. Crank the engine by turning the key to “RUN” position.
5.1.6 Engine will pick up and will develop voltage.
5.1.7 Check voltages between R-Y, Y-B and B-R. It should be 415 to 420 Volts.
5.1.8 Check frequency of supply, It should be 49.5 to 50 Hz.
5.1.9 Now close the D.G. breaker from the alternator panel.
5.1.10 Use touch screen to scroll the readings.
5.1.11 Check various readings of parameters on alternator panel and note it in the D.G set monitoring record.
5.1.12 The parameters are: RPM, lub oil pressure, lub oil temperature, water temperature (in / out), voltage (RY, YB, BR), current (R, Y, B), frequency, KWH, KW, P.F.

5.2 FOR STOPPING DIESEL GENERATOR SET IN MANUAL MODE

5.2.1 Check final readings of parameters and note in the D.G.Set Log Book.
5.2.2 By pressing Open Button on the alternator panel release the D.G. in comer breaker.
5.2.3 Turn the key of D.G. set to OFF position.
5.2.4 Press the red color Emergency push button.

5.3 FOR STARTING DIESEL GENERATOR SET IN AUTO MODE

5.3.1 After power failure, engine will start automatically after 30 seconds
5.3.2 Check fuel level into the diesel service tank.
5.3.3 Check coolant level into the radiator.
5.3.4 Engine will pick up and will develop voltage.
5.3.5 Check voltages between R-Y, Y-B and B-R. It should be 415 to 420 Volts.
5.3.6 Check frequency of supply, It should be 49.5 to 50 Hz.
5.3.7 D. G. breaker will close automatically.
5.3.8 Use touch screen to scroll the readings.
5.3.9 The parameters are: RPM, lub oil pressure lub oil temperature, water temperature (in / out), voltage (RY, YB, BR), current (R, Y, B), frequency, KWH, KW, P.F.

5.4 FOR STOPPING DIESEL GENERATOR SET IN AUTO MODE

5.4.1 D. G. Set verifies the M.S.E.B. Supply is resumed.
5.4.2 The D. G. incomer, bus coupler 1 and 2 breakers will open automatically.
5.4.3 The breakers of transformer 1 and 2 will close automatically.
5.4.4 Engine will stop automatically.

6.0 ABBREVIATION:

6.1 SOP : Standard Operating Procedure



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