System health and reliability are 2 critical factors that impact the power solution for every facility. Whether you are managing a data centre in a shopping complex or storing backup for a multi-server running environment, a generator or power backup system is a necessary element for a power system.
Though every power system varies in operation, load profile and the application depends on the complexity as well as the purpose of power usage. Reliable the power, maximised efficiency. Read on this content to understand the system operation, schemes, load profile and the maintenance required for a power backup system. You will also get to see how to manage the operation of generators.
Generator Set Rated Loads:
The first thing you have to understand is the generator sets have been designed to run with a certain load. The operation of each generator depends on the application and rating. This may not seem important, but loading a generator properly ensures its availability for healthy engine operation and long life of the engine.
The prime-rated diesel generator sets are designed to operate between 50-85% of full nameplate, continuous-rated diesel generator between 70-100% load, natural gas and bio gas generator set is designed to operate between 70-100% of nameplate rating.
1.Diesel Generator Sets:
When it comes to operating a generator set at a load level of less than 30% of rated output for an extended period of time, it can impact the unit negatively. In most cases, exhaust slobber is an annoying issue, which is also known as wet stacking. The fuel leaks from exhaust manifold joist and causes buildup, and this is a sign of underloading. A long period of underloading can cause the deposit buildup behind the piston rings and inside the cylinders. This can lead to power loss, as well as poor performance and increased maintenance cost.
2.Gas Generator Sets:
Gas generator sets above 1000 kW are typically used for non-emergency standby application. The right operating condition for the gas generator can range from 50-100% of the rated load, and any set below the 50% leads the situation to ash deposits, which results in the change in compression ratio and reduced detonation margin as well. The reduced detonation margin can damage the components as well as decrease the life of an engine.
When it comes to maintaining the load properly for diesel and gas generator sets, this issue can be resolved hiring a loadbank system, that can be easily installed to test a power system. The load for diesel generator set should be 30% of the load, whereas natural gas generator should be operated with at least 70% load factor. Well, following this guideline can ensure minimum engine maintenance besides ensuring long-term product health and durability.
