The Switching in Transmission and Distribution Substations Application, "AEL-SST-01", has been developed by EDIBON to study the most common operations carried out in these substations, such as, transference of the electrical service from the first busbar to the second busbar without interruptions of electrical supply, distribution through two lines in parallel, switching on/off of loads, commanding logic switch-disconnector, etc.
To demonstrate these basic principles of working, this application includes two types of busbar modules:
- Double busbar typology. These modules consist of two three-phase sets of busbars with input/output terminals to interconnect with other similar modules (feeders). Each double busbar module has two disconnectors connected each to each busbar and one circuit breaker. Through the circuit breaker, loads, generators, electrical lines, etc. will be supplied. To control the opening/closing orders of disconnectors and circuit breakers, these modules have push-buttons (local control mode) and digital signals inputs (remote control mode).
- Coupling busbar module. This module consists of one coupling three-phase circuit breaker between the busbars and two three-phase disconnectors, which allows coupling the two busbars.
In addition, this application includes a network analyzer to measure voltages of different points of the busbars, line currents, power flows in the different feeders, etc. and a three-phase switch that can be controlled manually or remotely to supply or switch off the current flow.
Additionally, a series of modules for the study of electrical faults are recommended for this application. These modules allow the injection of single-phase, two-phase, two-phase ground, three-phase and three-phase ground faults. For this purpose, it is necessary to acquire the fault injection module, the overcurrent protection relay, the current transformer module and the galvanic isolation transformer.
The "AEL-SST-01" application has been designed to be combined with the rest of the EDIBON´s power generation applications and to form a system between them to study concepts on energy generation, transmission, distribution and power consumption.
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