Which part of the gas turbine system provides information about power connection?

The phase sequence is critical in a gas turbine system because it refers to the order in which electrical phases appear in a three-phase system. Understanding the phase sequence is essential to ensure that the electrical machines connected to the gas turbine are operating correctly and efficiently. Incorrect phase sequences can lead to malfunctioning equipment or even damage, thus highlighting the importance of this aspect in overall system performance and safety.

In contrast, while voltage regulators, current transformers, and frequency counters have their specific roles in monitoring and controlling electrical parameters, they do not directly provide information about the phase sequence of the power connection. Voltage regulators maintain the voltage level, current transformers measure current for monitoring or protection, and frequency counters help in measuring the frequency of the electrical supply. These functions are important, but they do not specifically address the sequence in which the electrical phases are arranged, which is vital for the proper operation of the system.