Item No.: SO2800-3L

Interactive Lab Assistant: High-voltage transmission lines

The experiment instructions come in the form of an Interactive Lab Assistant course. This multimedia course is a step-by-step guide through the topic of modern energy systems. The fundamentals are conveyed using easy to understand animations. The Interactive Lab Assistant in conjunction with the SCADA Viewer constitutes a comfortable experimenting environment.

Special features:

  • Interactive experiment setups

  • Measured values and diagrams can be stored in the experiment instructions per drag and drop

  • The SCADA Viewer can be started directly from the experiment instructions

  • Includes questions with feedback and evaluation logic for progress monitoring

  • Documents can be printed out for hardcopy of experiment instructions including solutions

  • Labsoft browser, course software and SCADA Viewer

 

Training contents:

Studies of three-phase lines

  • Voltage increases on open-circuit lines

  • Voltage drop as a function of line length

  • Voltage drop as a function of cos phi

  • Capacitive and inductive power losses on a line as a function of V and I

  • Phase shift on a line

Parallel and series connection of transmission lines

  • Distribution of power and current among parallel-connected lines of equal length

  • Distribution of power and current among parallel-connected lines of unequal length

  • Distribution of power and current among series-connected lines of equal length

  • Distribution of power and current among series-connected lines of unequal length

  • Load distribution, power flow

  • Voltage distribution

  • Quantitative and qualitative evaluations of operational relationships

Study of lines with earth-fault compensation

  • Earth fault on a line with an isolated star point

  • Response to earth faults

  • Earth-fault compensation

Studies on power transmission systems with synchronous generators

  • Power and current distribution in a line network fed by a generator

  • Parallel operation of a generator and line via the network

  • Control of active power feed

  • Control of reactive power feed

Investigations on three phase cables

  • Ferranti effect, charging capacity, critical length
  • Resistive, inductive and resistive-inductive mixed loads
  • Compensation for a resistive-inductive load
  • Determining zero impedance
  • Symmetric and asymmetric shorts
  • Dealing with star points and shorts to earth

Combined networks of cables and lines

  • Differences between cables and transmission lines
  • Investigation of connections:
    - Transmission lines, transformers and cables
    - Cables, transformers and transmission lines
  • Losses from individual components
  • Parameters for sub-stations

Controlling flow of power in meshed networks

  • Variable transformers
  • Transformer with in-phase regulation (in-phase booster)
  • Transformer with regulation in quadrature (quadrature booster)
  • Phase-angle-regulating transformer (phase-shifting transformer)
  • Affect flow of power via two identical conductors parallel to one another
  • Course duration 22 h approx.