HHI announces successful test of 1.3MW Direct On shaft generator
The test of the new 1.3MW engine-mounted shaft generator was observed by representatives from SK Shipping and classification society DNV GL.
The successful test was the first for a Direct On shaft generator on a large-scale engine in South Korea, the company noted. The test covered the shaft power generator’s performance, durability, and stability.
The new Engine Mounted Generator (EMG) will be installed on a 24.5MW main engine, which is destined to be installed on a 318,000 dwt VLCC for SK Shipping.
The new EMG product has been developed by HHI-EMD. The system, which is directly mounted on the front-end engine structure, is expected to reduce the length of the shaft generator by around 40% compared with conventional shaft generators, reducing the impact on engine room length.
In order to ensure synchronisation with the gensets, the EMG will use an inverter. The EMG system will also use the rotor as a tuning wheel.
The Direct On system is also expected to help with the torsional vibration control function of the propulsion shaft system.
The product underwent an independent performance test at Hyundai Electric on 7 May.
The company noted that it expects this will improve the economics of EMG installations as the shorter length will minimise cargo capacity reductions. HHI-EMD plans to promote the product to shipowners internationally.
