The HL-6-250-15 LVDT displacement sensor stands out in the field of steam turbine control with its excellent performance and reliability. It is one of the key technologies to ensure the efficient and safe operation of steam turbines.

The core of the LVDT sensor lies in its unique design principle. The HL-6-250-15 displacement sensor contains a primary coil and two secondary coils around a movable iron core. When the iron core moves axially, it changes the mutual inductance between the coils, resulting in a change in the voltage output of the secondary coil. By accurately measuring this voltage difference, the displacement information of the iron core (i.e. the measurement object) can be obtained. This principle not only gives the LVDT extremely high resolution and repeatability, but also makes it have good linearity and stability.

In the complex operating environment of the steam turbine, the application range of the HL-6-250-15 sensor is wide and critical. The following are its performances in several key areas of steam turbine control:

Actuator displacement monitoring: The actuator of the steam turbine is responsible for regulating the intake volume, which directly affects the power output and efficiency of the unit. The HL-6-250-15 displacement sensor can monitor the position change of the actuator in real time to ensure that it moves accurately according to the preset instructions, thereby achieving smooth operation of the turbine and effective energy conversion.

Axial displacement monitoring: The axial displacement of the turbine is an important indicator to measure the health of the rotor. The HL-6-250-15 sensor can continuously monitor the axial displacement, timely detect possible problems such as bearing wear or rotor imbalance, and prevent equipment damage caused by excessive axial thrust.

Thermal expansion compensation: During the startup and shutdown process of the turbine, the thermal expansion and contraction phenomenon is significant. The displacement sensor can accurately measure the thermal expansion of the cylinder and rotor, helping the control system to adjust in time to avoid component damage caused by thermal stress.

Vibration analysis: By monitoring the tiny displacement of key components, the HL-6-250-15 sensor can also assist in vibration analysis, identify potential mechanical failures such as misalignment, looseness or imbalance, and provide data support for preventive maintenance.

The success of the HL-6-250-15 LVDT sensor in the field of steam turbine control is due to its inherent technical advantages, including but not limited to high precision, wide range, excellent temperature stability and strong anti-interference ability. In the future, with the integration of Internet of Things technology and big data analysis, LVDT sensors are expected to further improve their intelligence level, achieve more accurate real-time monitoring and predictive maintenance, and contribute to the sustainable development of steam turbines and the entire energy industry.

Yoyik can offer many spare parts for power plants as below:
SPEED MONITOR XJZC-03A/Q
Sensor Shear Pin X-F25-L105
Analog Input Module HAI805
linear transducer sensor TD-1 0-100
Serial interface 6ES7241-1AH32-0XB0
lvdt hydraulic cylinder K156.33.31.04G02
Speed sensor A5S0DS0M1415B50-5M
SPEED TRANSMITTER JM-C-3ZS-100
LVDT Sensor TD-1-0150-10-01-01
outlet Oil Temp., Monitoring Controller DC1040CR-702-100-E
High-temperature cable HSDS-30/L
shaft rpm meter HZQW-03A
PNEU CYLINDER 822120002
active wheel speed sensor CS-3-L100
SERVO VALVE CONTROLLER XSV-813-01
K-type Thermocouple Temperature Sensor MAX6675
static pressure pickup CS-3F-M16-L100
SPEED MODULE SENSOR SM10001
Intelligent Pulse Controller for Lime Stone TKZM-06
Thermal expansion sensor TD-2-50