Terry Turbine Over-speed Test Device™ (TTOD)

Overspeed Trip Test Device for Steam Turbines < 750 HP

The TTOD uses an electric motor with a variable speed drive to accelerate the uncoupled turbine to its over-speed trip setting while monitoring RPM and mechanical trip linkage. This allows precise speed and acceleration control with unparalleled test repeatability and accuracy. Since no steam is required, AFW and RCIC testing can be removed from critical path and performed safely in a low radiation environment, saving both time and dose.

An innovative application of the TTOD is being implemented in petroleum refineries for testing steam turbines.

Turbine Controls Test Device™ (TCTD)

Overspeed Trip Test Device for Steam Turbines > 750 HP

Building on the tremendous success of the ILD Terry Turbine Over-speed Test Device™, ILD has developed the next generation of scalable turbine controls testing equipment, the Turbine Controls Test Device™ (TCTD). The TCTD incorporates ILD’s patented technology to allow larger auxiliary turbines, such as HPCI turbines and feedwater pump turbines, to be over-speed tested without steam, saving costly outage time.

Rubber Expansion Joint Condition Assessment

ILD provides an innovative way to determine the suitability of rubber expansion joints using a microwave non-destructive evaluation (NDE) method. Reinforced rubber has found broad application as a construction material for expansion joints in heat exchanger inlet and outlet piping. These joints are used to permit movement of the heat exchanger relative to the piping, to permit small amounts of misalignment between the piping and exchanger nozzles, and to isolate the exchanger and piping from vibration originating in the other. Traditionally, these products have been replaced based on age, regardless of the service time or conditions because of the absence of a suitable NDE method which characterizes the true health of the component. Microwave Interferometric inspection represents a method for characterizing the condition of such an industrial rubber product volumetrically.

Cold Fusion Detection

The use of fiberglass and HDPE piping products has expanded in the power industry. Using the ILD sister company Evisive‘s patented inspection method, we have the capability to non destructively examine fiberglass piping and joints as well as HDPE piping and joints. In fiberglass piping, the method can detect areas of poor joint bonds, cracking and other defects of interest. For HDPE piping, the method can examine both electrofusion and thermal fusion joints and is capable of detecting inclusions and other joint defects including “cold-fusion” of HDPE thermal fusion welds. The Evisive method is the only validated method shown to be capable of detecting cold fusion through mechanical testing of the joint sections.