The turning process of the steam turbine ensures that the rotor is evenly heated during the start and stop phases of the steam turbine, avoiding damage caused by concentrated thermal stress. As the key monitoring component in this process, the rotation speed probe CS-3-L100 is directly related to the safety of the equipment. and efficiency. Today, we will take an in-depth look at the CS-3-L100, a turning speed sensor with the ability to measure low to zero speed, and learn how it plays an irreplaceable role in ensuring smooth startup and safe shutdown of steam turbines.

The CS-3-L100 speed sensor is a high-performance sensor specially designed for steam turbines. Its most significant feature is that it can achieve accurate measurement starting from zero speed. Traditional speed sensors often have difficulty maintaining high accuracy at extremely low speeds, but the CS-3-L100 adopts the advanced Hall effect principle and combines precise circuit design to ensure that it can achieve high accuracy even when the speed is close to zero. Accurately capture and transmit the speed signal, providing solid data support for monitoring the turning process.

During the cranking stage before the turbine starts, the CS-3-L100 can monitor the slow rotation of the rotor in real time to ensure uniform cranking speed, avoid thermal stress concentration caused by too fast or too slow rotation, and effectively extend the service life of the equipment. Turning after shutdown can prevent the rotor from bending and deforming due to sudden cooling, ensuring a smooth transition when starting next time. More importantly, the sensor’s low-speed measurement capability provides a basis for preventive maintenance. By analyzing the speed fluctuations during turning, problems such as bearing wear and misalignment can be discovered early to avoid major accidents.

The CS-3-L100 sensor not only breaks through the problem of low-speed measurement technically, but also demonstrates extremely high flexibility and compatibility in application. CS-3-L100 can be seamlessly connected with different types of steam turbine turning devices. It has a wide operating voltage range and usually supports DC voltage input from 5V to 30V, covering the needs of most industrial applications. The measurement frequency range reaches 0 to 20KHz, covering almost all rotational speed changes under turning conditions, ensuring the comprehensiveness of data collection.

In order to further improve the accuracy and stability of measurement, the CS-3-L100 speed probe integrates a signal amplification and shaping circuit to convert the original magnetic flux change signal into a clear and stable rectangular pulse signal output. This form of signal output is not only easy for subsequent electronic system processing, but also greatly reduces noise interference. Even small changes in rotation speed can be accurately recorded and analyzed, providing a reliable source of information for the control and protection system of the steam turbine.

In terms of design, the CS-3-L100 speed sensor follows the concept of simplicity but not simplicity. It adopts the direct outlet method, has a compact structure, and the installation process is simple and fast, which greatly shortens the equipment downtime and maintenance time and reduces the maintenance cost. At the same time, the sensor’s shell material and internal structure design fully consider the harsh conditions of the industrial environment, and have good dustproof, waterproof, and impact resistance properties, ensuring long-term stable operation.

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CAMERA UNIT WHTV-L
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Vibration Sensor PR6426/010-110
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SURFACE PT100 WZPK2-380B
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SHAFT DISPLACEMENT SENSOR WT0180-A07-B00-C10-D10
LEVEL SWITCH UDC-2000-1A
Vibration monitoring instrument CZJ-4D
High Resistance Probe 143.35.19
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Torque Control Module SY-JB (Ver 2.10)
GAUGE LEVEL MAGNETIC UHZ-51/1-Z/A-S27*3-III-10-800-735-D
Springs XY2CZ702
UPS SURT10000UXICH
Leak detector JSK-DG
LVDT TSI HTD-350-3
Communicate cable RVVP 4*0.3mm2
float & board type level gauge UHZ-10C00N
orifice coal flow LNSW-RV-1.0 / 590 x 10