IS200TREAH1A - Aeroderivative Turbine Emergency Trip Terminal Board

SPECIFICATIONS:

Part Number: IS200TREAH1A
Manufacturer: General Electric
Series: Mark VIe
Product Type: Aeroderivative Turbine Emergency Trip Terminal Board
Number of Inputs: 3
Number of Outputs: 2
MPU Pulse Rate Range: 2 Hz
MPU Pulse Rate Accuracy: 0.05 Percentage
MPU Input Circuit Sensitivity: 27 mV
Size: 33.0 cm wide x 17.8 cm high
Technology: Surface Mount
Operating Temperature: -30 to 65°C
Repair: 3-7 Days
Weight: 2.00 lbs
Country of Origin: USA
Availability: In Stock

FUNCTIONAL DESCRIPTION:

IS200TREAH1A is an Aeroderivative Turbine Emergency Trip Terminal Board manufactured and designed by General Electric as part of the Mark VIe Series used in distributed control systems. The Aeroderivative Turbine Emergency Trip (TREA) terminal board works with PPRO and YPRO turbine I/O packs as part of the Mark VIe or Mark VIeS system respectively. The inputs and outputs are as follows:

• Customer input terminals are provided through two 24-point pluggable barrier terminal blocks (H1A or S1A, H2A or S1A) or 48 pluggable Euro-style box terminals (H3A or S3A, H4A or S4A).
• Nine passive pulse rate devices (three per X/Y/Z section) sense a toothed wheel to measure the turbine speed.
• Jumper blocks that enable fanning of one set of three-speed inputs to all three PPRO or YPRO I/O packs.
• Two 24 V dc (H1A / S1A, H3A / S3A) or 125 V dc (H2A / S2A, H4A / S4A) TMR voted output contacts to trip the system.
• Four 24-125 V DC voltage detection circuits for monitoring trip string.
• Daughterboard connectors for optional feature expansion. For TMR systems, signals fan out to the JX1, JY1, and JZ1 DC-62 PPRO or YPRO connectors.

INSTALLATION:

For H1 / S1 and H2 / S2 board variants, voltage detection, and the breaker relay are wired to the I/O terminal blocks TB1. Passive pulse rate pick-ups are wired to TB2. Each block is held down with two screws and has 24 terminals accepting up to #12 AWG wires. A shield termination strip attached to the chassis ground is located immediately to the left of each terminal block. For H3 / S3 and H4 / S4 board variants, voltage detection and the breaker relay are wired to the I/O box terminals at the top of the board. Passive pulse rate pick-ups are wired to the lower terminals. All terminals plug into a header on the TREA board and accept up to a single #12 AWG wire.

CONFIGURATION:

Jumpers JP1 and JP2 select the fanning of the 3 X section passive speed pickups to the S and T section PPROs or YPROs. Place the jumper over the pin pairs if you want to fan the 3 R speed input to the other two TMR sections.

WOC has the largest stock of GE distributed control systems OEM replacement parts. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly get in touch with our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What are some common conditions that trigger the emergency trip terminal board?

Conditions that may trigger the emergency trip terminal board include overspeed (excessive turbine rotor speed), low lubricating oil pressure, high exhaust gas temperature, flame detection (indicating a fire), and various other abnormal operating conditions that pose a risk to the turbine or personnel safety.

How is the emergency trip terminal board tested and maintained?

Regular testing and maintenance of the emergency trip terminal board are essential to ensure its proper functioning when needed. This may involve periodic inspections, functional tests, and calibration of associated sensors and relays. Additionally, the emergency trip system should undergo regular simulated emergency shutdowns to verify its reliability.

What are the consequences of a failure in the emergency trip terminal board?

Failure of the emergency trip terminal board to function properly in a critical situation can lead to severe consequences, including turbine damage, equipment malfunction, safety hazards, and potential downtime for repairs. Therefore, ensuring the reliability and integrity of the emergency trip system is paramount for safe turbine operation.