Power Generation

Model No. DL GTU101-S

The three-phase power is the most commonly used for generation, transmission, distribution, and use in the public energy sector. Three-phase systems are more economical than single-phase systems due to the reduced amount of conductor material needed to transmit the same amount of power making them suitable for high voltage transmission over long distances. Furthermore, it is ideal for consumers use in three-phase (motors, heavy loads) or single-phase applications.
The generation of electrical energy is performed almost exclusively by means of high-power synchronous machines, or alternators, whose construction design depends on the type of drive, which can normally be steam, gas or water. One major limitation of the electrical power is that it cannot be stored in large quantities and, therefore, it has to be generated as the consumer needs it. The synchronous generator can be operated in isolated mode, providing power to a single consumer, or it can be connected in parallel with a constantvoltage constant-frequency grid system.
In this laboratory, the main characteristics of a synchronous generator are studied as well its synchronization to the main network and its behavior under different load conditions.

Experiments:
Generator analysis
– Winding resistance measurement
– Generator no-load test
– Generator short-circuit test
– Conventional efficiency
Load characteristics
– Active power generation.
– Inductive reactive power generation.
– Capacitive reactive power generation.
– Regulation performance analysis.
Network synchronization
– Manual synchronization: Dark lamp synchronization method, Two Bright one dark synchronization method and parallel operation using a synchronoscope.
– Automatic synchronization using a synchronization relay.
Generator network operation
– Alternator and synchronous motor operation.
– Dynamic power factor control of the grid.

Expansion:
Adding optional modules to the GTU 101-S configuration, the available list of experiments and system capabilities are expanded.

Generation Protection
– Parameter configuration, fault simulation, relay response measurement and oscillograph recording for the following protections:
– Overcurrent protection
– Over-voltage and under-voltage protection
– Over-frequency and under-frequency protection
– Unbalanced load protection
– Stator-earth fault protection
– Reverse power protection
– Generator differential protection

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