Adding a component or accessory to a product that did not have it when it was manufactured.
This can be answered by considering the operating plant costs for:
Experience has shown that failures are mainly due to:
In other words, the core engine is robust and reliable; it is the control and instrumentation equipment that causes the majority of failures.
When considering a retrofit always try and move as many control functions from hydro-mechanical equipment to software, electronic or electrical control. This will always improve reliability.
A typical scope of a controls system retrofit might include:
TCL chose equipment that is readily available, mass produced and modular. This type of equipment will provide you with the following benefits: