alternative transients program atp rule book

5th WSEAS / IASME International Conference on: ELECTRIC POWER SYSTEMS, HIGH VOLTAGES, ELECTRIC MACHINES (POWER'05). In Proceedings of the 5th WSEAS Conference POWER'05.

Belan, A., Eleschova, Z.: The False Operation of the Tank Earth-Fault Protection of the Block Transformer.Simulation results are presented and correct tripping action is verified at the end. Next multifunctional digital relay developed model is introduced with its functional elements, used algorithms and tripping characteristics. The paper describes the way of linking and and compiling of relay model with ATP. For this reason, the object oriented programming language C++ was chosen for relay model development. The performance of the proposed method was. This deficit is compensated for by allowing a suitable interconnection between the ATP computing core and external model developed in another programming language. The PC based alternative transients program (ATP) was used to model a six bus system and generate fault data. There is an internal programming language MODELS in ATP which allows creation of programs themselves but because of its simplicity it is not sufficient for developing sophisticated models as in object oriented programming languages. This model is not available and a code for this model has to be created in ATP. LEC rulebook chapters, in original Lotus Manuscript format. To the improvement of digital relays, an interactive model in the simulation program of power system, e.g., ATP-EMTP, could properly contribute. ATP (Alternative Transients Program) is considered to be one of the most widely used software.

This paper presents new approach in the problem of digital relay development.

Alternative transients program atp rule book