GE IS200TCASH1A CA SIMPLEX TB

Part Number IS200TCASH1A Manufacturer General Electric Country of Manufacture

As Per GE Manufacturing Policy Series Mark VI/VIe Function Module Availability

In StockThe IS200TCASH1A is a terminal board developed by General Electric.

It is a part of the Mark VIe series. Customer terminals and signal routing into the BCAA

and BCAB boards are provided by this terminal board.

The P5 connector on TCAS accepts bulk 28 V control power.TEL:+8618144100983

It then supplies power to a JGPA board in the input cable shield termination location

via connector P4. P1 and P2 68 pin connectors for terminal board cables are available from TCAS.

The TCAS terminal board within the module routes signals to connectors for the BCAA and BCAB analog processing boards.

OPERATION

Analog signals from the terminal board are routed to the VPYR processor board, where they are sampled and converted. 

VPYR uses both pyrometer signals to calculate temperature profiles and run turbine protection algorithms. 

If a trip is indicated and the signals have been validated, VPYR sends out the trip signal.

OPTICAL PYROMETER MEASUREMENTSThe temperature profile of the rotating turbine blades is dynamically 

measured by two infrared pyrometers. Each pyrometer is powered by a +24 V dc and a -24 V dc source on the terminal board, 

which is a diode chosen from the voltages supplied by the three VPYR boards.

Each pyrometer produces four 4-20 mA signals that represent the following blade measurements: 

The avg temperature The highest possible peak temperature The average maximum temperature.

A fast dynamic profile with a 30 kHz bandpass that provides the entire signature.

Each 4-20 mA input generates a voltage across a resistor. Which is then multiplexed and converted on the VPYR board.

The fast input (#4) is sampled at up to 200,000 samples per second using a dedicated A/D converter.

VPYR can be set up with a variable number of turbine buckets and up to 30 temperature samples per bucket.