Using the dispatcher training system(DTS) to train the dispatchers is an effective way to improve their operations. This paper presents the structure and important modules of DTS for substation. The 3D technology is introduced to make the simulation more comprehensive and vivid, so, the system gets more complicated, the data exchange mechanism is introduced in detail. Besides the main module, some other function modules are also introduced to make the system more flexible and convenient. This system can be well used in the other substation of the same type. The design idea can also be used for other training system for reference.

In order to improve the ability of substation operators, the 3D training system using virtual technology is designed. It makes great sense to present the trainees with vivid scenes of the substation. Considering the diversity and complexity of substation equipment, the model should be carefully designed. In order to make the model flexible and reusable, model design can be decomposed into physical model design and electrical model design. Physical model focuses on the appearance and shape of the equipment, while the electrical model pays more attention to the behaviours. Physical models of the equipment must be designed elaborately according to its shape and make itself compatible with electrical model. The system can also exchange data with other system, such as online monitoring system. The system has deployed in an underground substation, and the time spend on model building has been greatly decreased.