Product Description

The IS200TRPLH1A is a General Electric board component designed to fit into the company’s Mark VI system for the control of industrial gas and steam turbine systems.  The Mark VI was one of the last Speedtronic systems to be created and released by General Electric.  Typically this board is used on steam turbines only.  It can be used in Mark VI or Mark VIe systems. 

The IS200TRPLH1A functions as a Large Steam Turbine Primary Trip terminal card.  It is used as the primary protection from overspeed on larger steam turbine systems.  Control of the board is placed on the turbine protection controller card, typically a VTUR or PTUR board.  It also works in conjunction with a TREL board to provide emergency/primary interfaces to the ETDs.  The TRPL board provides the negative side of the 125 VDC to the trip solenoids while the TREL offers the positive side.  These boards can connect to up to three trip solenoids.  

The IS200TRPLH1A is populated by two large terminal strips with a total of 48 connector points.  It also has three d-shell connectors and other plug connectors, MOV (metal oxide varistors) diodes, resistors, transistors, integrated circuits, wire jumpers, and nine magnetic relays.  Relays are in three voting circuits that interface with three trip solenoids.  The solenoids use two out of three contact voting, and trip circuits include solenoid suppression and voltage monitoring. 

For additional information about this board component or about the Mark VI system, please refer to documentation originally provided by General Electric, such as GE manuals or user guides.