Power Transmission Line Trainer Model ELTR 025C
Power Transmission Line Trainer Model ELTR 025C
High-voltage networks are usually operated with voltages in the region of 110 kV to 380 kV, whereby urban areas and large-scale industrial facilities are supplied with 110 kV, and 380 kV is used for long-distance transmission lines. The line simulation system is designed for operation at model voltages between 110 V and 380 V. Various voltage levels and line lengths can be selected via corresponding overlay masks.
Item Description
Examinations with the training system can be performed off-load, in normal operating mode, in the presence of a short-circuit or earth fault, with or without earth-fault compensation. The system also permits assembly of complex networks by connecting the line simulation models in parallel or series. The voltage can be supplied via a fixed grid or synchronous generator.
High-voltage lines
Advantages
• For your safety, the 380-kV transmission lines are investigated and connected at a low-voltage level without detracting from the characteristics of a real high-voltage line.
• Realistic simulation of a 380-kV transmission line with a length of 300 km or 150 km
• Innovative switchover between line lengths by means of over- lay masks
• Earth-fault compensation by means of a Petersen coil
• Ability to simulate symmetric and asymmetric faults
Technical Specifications
In practice, medium-voltage and high-voltage networks are equipped with protective mechanisms connected via current and voltage transformers.
• Use of compact, original relays incorporating cutting-edge digital technology
• Use of industrial safety relays from prestigious international manufacturers
• Monitoring of protective features by means of SCADA (Supervisory Control and Data Acquisition)
• A relay test option permits the relays to be checked individually
Investigations on Three-phase Transmission Lines
Incudes:
– 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 U and I
– Phase shift on a line
Parallel and Series Connection of Transmission Lines
Includes
– 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
Transmission Line with Earth-fault Compensation
Includes
– Earth fault on a line with an isolated star point
– Response to earth faults
– Earth-fault compensation
Transmission Systems with a Synchronous Generator
Overcurrent Time Protection for Lines
Auxiliary Line Protection Equipment
Protection of Parallel-connected Lines
High-speed Distance Protection
See also different:
Sci-tech Automotive Ignition Demonstration Trainer Model AM 175 is designed to demonstrate to students the working principles behind the automotive vehicle ignition system. Through the distributor, the alternator supplies power at regular inte [...]
