Skip to main content

Archive

Show more

Normal Starting Procedure of Generator Set





Ensure any engine control switch is set to the run position, with the load disengaged. Manually set the air shut off valve (if fitted) to the run position (see Fig. 18), Turn the key switch to the start position, which will energize the solenoid allowing the engine to crank over for a few seconds then start diesel generator set.

Check the instrument panel is showing normal running oil pressure, and the ammeter for charge to the engine batteries.

Allow the engine to run for five minutes checking the instruments are reading correctly. Stop the engine and check the oil and coolant levels, replenish if necessary.


Key

1. Position - closed

2. Position - Open
WARNING!! The cooling system is pressurized - do not remove the filler cap from the radiator whilst the engine is hot. Hand protection must be worn.


Engine Shutdown

The engine is normally stopped by operating an electric stop control via a key switch. In this case it is only necessary to turn the key in an anti-clockwise direction which de-energizes the stop solenoid to stop the engine. The solenoid remain de-energized until the engine is started up again.

With the manual system the stop control must be held in the stop position until the engine stops. Manual stopping can be used to override the electrical system if necessary.

Should the engine stop due to the air shut-off valves being operated, it is imperative that the cause of the fault be investigated immediately.

It is essential to allow the engine to run at no load for 3-5 minutes before stopping to allow the circulating lubricating oil to take the heat away from the bearings and shafts, etc. This is especially important with turbocharged engines where extremely high temperatures are experienced within the turbocharger. Heat rise by suddenly stopping an engine on load can cause seizure of bearings and damage to oil seals.


NOTE: Excessive idling of the engine will result in only partial burning of the fuel, causing high carbon build-up on injector nozzles, valves, piston rings, etc. Also unburnt fuel will tend to wash the lubricating oil from cylinder bores and dilute the oil in the sump. This can eventually cause inefficient lubrication of bearings and result in seizure.

Light Load Operation & Standby Generating Sets
If an engine is operated on a load less than 25-30% of its rated output: certain symptoms will be observed which may give cause for concern.

The usual results of this operation are heavier than normal lubricating oil consumption, and oil leaks from the air and exhaust manifolds. This condition is particularly evident on standby generator set applications, where a weekly exercise on no load is common practice.

These phenomena are due to the fact that:

1) Turbocharger oil seals are not fully effective on light load, which results in oil being delivered together with the air into the engine air manifolds.

2) The cylinder temperatures are too low to ensure complete burning of all the fuel delivered. This results in an unsightly drip from the exhaust manifold junction glands.

A further result is that of abnormal carbon build-up on the valves, piston crowns and exhaust ports. Thus the normal service interval of see Maintenance Schedules between top overhauls may be reduced. Fuel dilution of the lubricating oil will also occur. It is therefore recommended that the following precautions are observed!

1) Running on light load should be avoided or reduced to the minimum period. If weekly exercising on no load is carried out, the running period should be kept down to say, 10 minutes, or until the battery charging rate returns to normal.

2) Every year the engine or generator set should be run on full load for four hours, to burn off accumulations of carbon in the engine and exhaust system. This may require the use of a 'dummy load'. The load should be built- up gradually from zero over the four hour run.

On standby gensets, air cleaner elements should be changed annually. Oil and fuel fitter elements should be changed every six months. The fuel injectors should be checked every 2 years.

There is absolutely no danger of failure or breakdown resulting from light load operation, providing the above recommendations are followed, in addition to the normal procedures laid down in this manual.



Comments

Popular posts from this blog

New Yuchai engine YC6K600-D30 power for diesel generator 50Hz

Yuchai Is Super Confident in Its Innovation

Founded in 1951, with 30 wholly-owned, holding and joint-stock subsidiaries, Guangxi Yuchai Machinery Group Co., Ltd. (hereinafter referred to as the Yuchai Group) is an internal combustion engine manufacturing base with the most complete spectrum of products in the country. In recent years, machinery manufacturing industry has been dropped off influenced by domestic and foreign economic situations, especially domestic overcapacity and unreasonable product structure. Reversely, Yuchai has sold over 3 million engines with the annualized revenues amount to RMB 40 billion. Over the years, as China ’ s largest engine R&D manufacturing base, Yuchai adjusts and optimizes its industrial structure and constantly strengthens its capacity for independent innovation. Therefore, the key technology continues to be the top in the sector for further keeping its own top leader in the industry. Innovation-Driven In 2013, seven world-class diesel-engine products for high-s...

Technical Parameters of Boduan 500KW Weichai Generator Set 6M33D572E200

  The 6M33D633E200 diesel engine is a special-purpose diesel engine for land-based power generation in the M33 series. It is a new-structure power generation diesel engine with a centrally - located turbocharger developed by Weichai Power Co., Ltd. in 2016. Continuous Power (COP): The maximum power at which the diesel engine can run continuously under a constant load with no limit on the annual operating hours. It is the ISO standard power. Prime Power (PRP): The maximum power at which the diesel engine can run continuously under variable loads with no limit on the annual operating hours. It is an ISO standard power that allows a 10% overload. Standby Power (ESP): The maximum power in a certain variable - power series that the diesel engine can operate for up to 200 hours per year. It is an ISO standard power with limited fuel consumption.   Operating Conditions and Applications of Baudouin  500KW Weichai Generator Set  Diesel Engine Power Classification Operating Co...