The OPC solenoid valve SV4-10V-C-0-00 is a key component for turbine protection. Its main function is to monitor the speed during the operation of the unit and take measures to prevent the turbine from overspeed if necessary.

Operating principle of OPC solenoid valve SV4-10V-C-0-00 is as follows:

When the turbine speed exceeds the set OPC action speed, the OPC solenoid valve is triggered and sends a signal to the control system. When the control system receives the signal from the OPC solenoid valve, it will take corresponding measures, such as reducing the steam flow and increasing the opening of the steam valve, so as to reduce the rotating speed of the steam turbine and ensure the safe operation of the equipment. At the same time, OPC solenoid valve also has the function of cutting off the control oil. In case of loss of oil pressure, even if the controller fails, it can ensure that the steam turbine inlet steam control valve automatically falls down to achieve shutdown.

The OPC solenoid valve SV4-10V-C-0-00 has a very high importance in the operation of steam turbine, mainly reflected in the following aspects:

1. 1. Through the real-time monitoring of the rotating speed of the steam turbine, the OPC solenoid valve can quickly take measures to prevent the overspeed operation of the steam turbine in case of abnormal conditions.
2. 2. OPC solenoid valve has load drop prediction function, which can quickly close the medium-voltage control valve in case of partial load rejection, so as to improve the anti-jamming capability and stability of the power system.
3. 3. The OPC system can automatically adjust the steam turbine inlet steam control valve according to the signal sent by the control system to realize the real-time control of the turbine speed. This will help increase the degree of automation and reduce the burden on operators.
4. 4. In case of controller failure, the OPC solenoid valve can still ensure that the steam turbine inlet steam control valve automatically falls down to achieve shutdown.
5. OPC system can be adopted for both large power station steam turbine and small industrial steam turbine. Therefore, the OPC solenoid valve SV4-10V-C-0-00 can be applied to various types of steam turbine protection systems and play an important role.

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