GE IS215VPROH2B Mark V Turbine Protection Board

The GE IS215VPROH2B is a Turbine Protection Board in the Mark VI Speedtronic gas turbine control system, central to the independent emergency overspeed protection system. Part of a triple-redundant setup with R8, S8, T8 boards, it works with TPRO and TREG terminal boards to control trip solenoids, ensuring turbine safety.

Designed for emergency overspeed protection and emergency stops, it features three analog current inputs and nine thermocouples primarily for exhaust over-temperature monitoring. Each board operates independently, allowing hot-swap replacement without system disruption. It connects to six speed pickups and uses VME for programming, with isolated backplanes to maintain redundancy.

Features:
Triple Redundancy: Part of a three-board system for fault tolerance, ensuring protection even if one board fails.

Emergency Protection: Delivers EOS protection and emergency stops, controlling up to three trip solenoids via TREG/TRPG boards.

Independent Operation: Isolated from the main control system, with dedicated power supplies for reliability.

Versatile Inputs: Includes backup sync check, three analog current inputs, and nine thermocouples for exhaust temperature monitoring.

Hot-Swap Capability: Allows board replacement during turbine operation without compromising system safety.

Speed Monitoring: Uses three dedicated speed pickups, with programmable overspeed trip limits for primary and emergency scenarios.