AEL-SST-01 Aplicação de Manobras em Subestações de Transmissão e Distribuição

SWITCHING IN TRANSMISSION AND DISTRIBUTION SUBSTATIONS APPLICATION - AEL-SST-01

SISTEMAS INOVADORES

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.

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NOTÍCIAS RELACIONADAS

Descrição Geral

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.

EXERCÍCIOS E PRÁTICAS GUIADAS

EXERCÍCIOS PRÁTICOS GUIADOS INCLUÍDOS NO MANUAL

  1. Basic wiring of double busbar substation.
  2. Double busbar coupling maneuver.
  3. Operation logic with circuit breakers and disconnectors in a double busbar substation.
  4. Load sharing with different feeders.
  5. Busbar changeover without interruption.

EXERCÍCIOS MAIS PRÁTICOS A SEREM FEITOS COM A UNIDADE

Some practical exercises with the recommended modules:

  1. Automatic opening of circuit breakers and disconnectors through overcurrent relay.
  2. Voltage drop as a function of line length.
  3. Voltage drop as a function of the power factor of the load.
  4. Capacitive and inductive power losses on a line.
  5. Compensation of the power factor with capacitors bench.

Some practical exercises with AEL-BSGC Smar Grid Application and other Smart Grids:

  1. Remote coupling maneuver of double busbar with SCADA.
  2. Remote control operations logic with circuit breakers and disconnectors in switching substations with SCADA.
  3. Remote busbar changeover maneuver without interruption of supplying with SCADA.
  4. Voltage drop at the line as function of line length with SCADA.
  5. Voltage drop at the line as function of the power factor of the load with SCADA.
  6. Capacitive and inductive power losses on a line with SCADA.
  7. Load sharing with different feeders with SCADA.
  8. Remote control operations with circuit breakers and disconnectors with SCADA.
  9. Remote electrical measurements in several points of switching substation with SCADA.
  10. Several other exercises can be done and designed by the user.

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