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GE IS220PTURH1A｜Turbine Specific Primary Trip Module｜
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- 4-channel passive MPU magnetic pulse speed acquisition (core overspeed protection)
4-channel independent magnetic speed probe input, capable of recognizing a minimum of 2RPM turning speed, supporting three out of three speed voting logic; Output a first level overspeed trip signal, which is the highest level of safety protection for the unit to prevent overspeed accidents.
Unit trip/emergency stop circuit monitoring (TRPA circuit)
Collect safety circuit signals such as 16-140VDC cut-off solenoid valve, ESD emergency stop switch, flame detector, shaft current, etc., monitor the integrity of the trip circuit in real time, and issue an alarm directly for disconnection.
Main trip drive output
By outputting hard contacts through the TTURH1C terminal board, the fuel cut-off and steam cut-off solenoid valves can be directly controlled to achieve emergency shutdown without delay.
Automatic configuration and redundant switching
Automatically download firmware and protection parameters from the controller when powered on; When the main module fails, the standby PTUR switches without disturbance and does not interrupt the protection logic.
- 4-channel passive MPU magnetic pulse speed acquisition (core overspeed protection)
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