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Common problems of MSC-2B turbine rotational speed monitor

Common problems of MSC-2B turbine rotational speed monitor

MSC-2B turbine rotational speed monitor is an instrument widely used for speed monitoring of steam turbines and other rotating machinery. It is a product commonly used by power plant users, with high accuracy, clear display, high durability and reliability. However, in the process of using the steam turbine, there are still various fault problems.

Sudden change after vibration of MSC-2B turbine rotational speed monitor

The sudden change of MSC-2B turbine rotational speed monitor after vibration may be caused by many factors, some of which may include:
Mechanical failure: such as bearing damage or poor alignment in the transmission system, increased mechanical clearance, etc.
Electrical fault: such as contact problem in signal circuit, damage or failure of signal processing unit, etc.
External interference: such as unreasonable installation position of rotational speed monitor, electromagnetic interference, etc.
Rotor unbalance: When the rotor is unbalanced, it will cause sudden vibration of the rotational speed monitor.
No matter what causes the vibration, the machine should be shut down as soon as possible for repair and maintenance to avoid potential safety problems and equipment failures.

Rotation speed monitor MSC-2B (5)

MSC-2B turbine rotational speed monitor speed fluctuation

The speed fluctuation of the turbine rotational speed monitor will lead to the unstable operation of the turbine. The turbine control system depends on accurate and stable speed measurement to maintain optimal operation. Fluctuation in the rotational speed monitor reading may lead to improper response of the control system, resulting in unexpected changes in turbine speed, and may cause damage to turbine components. In addition, speed fluctuations can affect the accuracy of other measurements that depend on a stable reference speed, such as vibration or temperature. Therefore, maintaining the accuracy and stability of the turbine rotational speed monitor is crucial to ensure the safe and efficient operation of the turbine.

Rotation speed monitor MSC-2B (4)

MSC-2B turbine rotational speed monitor display data jumps

The turbine rotational speed monitor display data may jump due to the following reasons:
Signal interference: the turbine rotational speed monitor is generally connected to the sensor or other equipment through cable. If the cable has problems such as broken wire, poor contact, electromagnetic field interference, etc., it may cause signal interference, thus causing data jump.
Sensor fault: There may be aging components, poor magnetic circuit, open coil and other problems in the reluctance speed sensor, which may also cause data jump.
Circuit fault: the internal circuit of the turbine rotational speed monitor may have problems such as power fluctuation, aging of components, poor contact, etc., which may also cause data jump.
Other reasons: for example, the rotational speed monitor itself has problems, and the sensor and rotor are poorly matched.
To solve these problems, it is necessary to check and repair the turbine rotational speed monitor, and may need to replace cables, sensors, components and other components, as well as recalibrate them.

Rotation speed monitor MSC-2B (2)

MSC-2B turbine rotational speed monitor drop

There may be many reasons for the decrease of turbine rotational speed monitor, and the following are Turbine rotational speed monitor drop
There may be many reasons for the decrease of turbine rotational speed monitor, and the following are some common reasons:
Sensor fault: the sensor of the rotational speed monitor measures the speed by detecting the rotor speed. If the sensor fails, the rotational speed monitor may drop or be inaccurate.
Power failure: the rotational speed monitor needs a stable power supply to work. If the power supply is unstable or there is a problem with the power circuit, the rotational speed monitor may drop.
Signal interference: the rotational speed monitor signal may be affected by other equipment or electromagnetic interference, resulting in measurement error.
Connection line fault: The rotational speed monitor may drop due to the fault of the connection line of the rotational speed monitor.
The solution includes checking the sensor, power circuit, signal circuit and connecting circuit, finding out the problem, and repairing or replacing it. If it cannot be handled by itself, it is recommended to ask professional technicians to handle it.


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  • Post time: Mar-03-2023