Before starting a diesel generator, it is essential to check the coolant level to prevent the unit from over-temperature. When the coolant level is low, you need to replenish the coolant to the radiator:
Before adding coolant, make sure that the radiator is cooled down.
After opening the lid at the top of the radiator, add coolant slowly to let additional air from the generator set breathe out.
When the filling is complete, tightly close the radiator cap.
Though you may visually check the coolant level with naked eyes when opening the radiator cover, it may not be accurate. Instead, in our Remote Radiator Type enclosure sets, we have a radiator sight tube (e.g. level gauge instrument) installed at the radiator side. For open type diesel generators, you can check the coolant level through a sight tube located at the top corner of the radiator. Furthermore, the control panel notifies you when a low coolant level is detected.
In our enclosure diesel generating sets, specific door designs are assigned to particular genset types. The most common types are Single Door Design and Double Door Design.
The single door design is often applied to ‘End In Front Out Type’ containerised generator sets. As ‘End In Front Out Type’ requires more natural wind for ventilation airflow within the container for cooling, the airflow louvres in the door are relatively wider.
The double door design is utilised in ‘Remote Radiator Type’ containerised generator sets. Generator sets with double door designs would use less space when opening the doors for maintenance. The double door is on the alternator side. For the opposite side (radiator side), the door is tightened with fastenings which can be loosened for maintenance. When there is a need to replace the radiators, you only have to open the doors at the radiator side instead of removing the whole generator set out of the container.
Before shipment, we seal the container door locks to protect the internal contents during transportation. So, it keeps everything secure delivering to your place!
Heavy rainfall is usual in tropical regions and other areas. A stable electricity supply is crucial in bad weather, but is it safe to run a diesel generator on rainy days?
Our enclosure type diesel generators are safely designed to equip with both weatherproof and soundproof functions. Under normal usage, raindrops cannot get into the internal parts like fuel, lubricating and cooling systems. Additionally, all of our containerised sets have water outlets at the bottom of air outlets to remove water. However, do not run a genset in extreme conditions, for example, locating a genset under a drain spout or during a flood.
We should never operate an openset under the rain, as this type is for locating in a generator room. Water can cause permanent damage to a generator. Moisture can ruin the alternator and other internal components that may lead to corrosion. Once there is damage to the generator, you need an overhaul to remove dirt and clean the internal components afterwards.
We had similar projects to build customised rainproof housing for clients having a strong demand for water resistance. If you have special requests for your diesel generator designs, feel free to consult our specialists!
As one of the Registered Electrical Contractors in Hong Kong, Yip Shing is proud to have sponsored the 63rd anniversary publication of Hong Kong and Kowloon Electrical Engineering and Appliances Trade Workers Union – the organisation to unite electrical practitioners in the city!⠀
Radiator coolant of a diesel generator: Rust preventive & Antifreeze Coolant
When the generator set runs, the diesel engine pumps coolant to the radiator to bring away heat generated by the engine. There are two main types of coolants, where the coolant fluids are composed of purified water and rust preventive or antifreeze:
Rust preventive: an anti-rust liquid to prevent corrosion in most conditions.
Antifreeze: in addition to the anti-rust property, an antifreeze is for operation under cold weather conditions. It prevents water from freezing which may damage the internal components.
For Cummins diesel generators, Fleetguard coolants are a convenient choice to ensure the coolant circulates effectively. There is no need to add water when using Fleetguard coolants. There are other alternatives, but you may have to mix the liquids in different ratios according to specific temperature requirements.