TCCS means turbine clearance control system

it using laser ranging technology measures and controls turbine clearance on the condition of solid cylinder without rotator. Many factors which bring effects in the actual operation of unit are taken into consideration when the clearance is being adjusted

so the result is more precise. This technology not only can be applied to half-speed turbine low pressure cylinder that has a large amount of deformation

but also has changed the concept of turbine clearance control and has provided a new method to measure and adjust various turbine clearances.