IS230TRPAH1A - Turbine Primary Trip Terminal Board

SPECIFICATIONS:

Part Number: IS230TRPAH1A
Manufacturer: General Electric
Series: Mark VIe
Function: Turbine Primary Trip Terminal Board
Number of Inputs: 3 x 4 Voltage
Number of Outputs: 2 trip
Temperature: -30 to 65°C
MPU pulse rate range: 2 Hz to 20 kHz
MPU pulse rate accuracy: 0.05%
Number of outputs: 2 trip contacts
MPU input circuit sensitivity: 27 mV pk
Availability: In Stock
Size: 33.0 cm x 17.8 cm
Technology: Surface mount
Country of Manufacture: United States (USA)
Manual: GEH-6721D

FUNCTIONAL DESCRIPTION:

IS230TRPAH1A is a Turbine Primary Trip Terminal Board manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Control Systems. The Aeroderivative Turbine Primary Trip TRPAH1A and 2A terminal boards work with PTUR I/O packs or with TTUR terminal boards as part of the Mark VIe control system. The inputs and outputs are as follows:

• 12 passive pulse rate devices (four per R/S/T section) sensing a toothed wheel to measure the turbine speed. Or, six active pulse rate inputs (two per TMR section)
• Two 24 V dc (H1) or 125 V dc (H2) TMR-voted output contacts to the main breaker coil for the trip coil.
• Four 24-125 V DC voltage detection circuits for monitoring trip string.
• One 24-125 V DC ‘Fail-safe’ ESTOP input for removing power from trip relays. For TMR systems, signals fan out to the PR3, PS3, PT3, JR4, JS4, and JT4 connectors.

COMPATIBILITY:

PTURH1A is compatible with the Turbine Terminal Board TTURH1C, and the STUR board, but not the DIN rail-mounted DTUR or other TTUR boards. The following table gives details of the compatibility. Control mode refers to the number of I/O packs used in a signal path:

• Simplex uses one I/O pack with one or two network connections.
• TMR uses three I/O packs with one network connection on each pack.

INSTALLATION:

TTL pulse rate pick-ups, voltage detection, E-STOP, 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. The TRPA must be configured for the desired speed input connections using the following table. Jumpers JP1 and JP2 select fanning of the R section pulse rate pickups to the S and T PTURs.

OPERATION:

The TRPA board is designed for application in two different ways. When a TTUR terminal board is used to hold three PTUR I/O packs the TRPA terminal board may be connected using three cables with DC-37 pin connectors on each end. In this mode of operation, the TRPA provides two contact-voted trip relay outputs, ESTOP, and four voltage sensors. TTUR provides the normal set of features described for that board. The TRPA speed inputs are not active and should not be connected with this board arrangement. The TRPA board may also be used with three PTUR I/O packs mounted directly on the TRPA. In this mode of operation, the speed inputs to TRPA become active paths into the PTUR allowing for a single terminal board primary trip solution.

WOC has the largest stock of OEM replacement parts for GE Distributed Turbine Control Systems. 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 parts and repairs, kindly contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

How do I install the terminal board?

The board’s TTL pulse rate pickups, voltage detection circuits, and E-STOP should be connected to TB1 terminal blocks, while passive pulse rate pickups are wired to TB2. The terminal blocks have 24 terminals each and accept up to #12 AWG wires.

How does the Turbine Primary Trip Terminal Board function in turbine control systems?

The board works by receiving inputs from pulse rate devices (sensors) that monitor the turbine's speed and status. It then processes these signals and controls the outputs, which include trip relay contacts to initiate a turbine shutdown if needed.

Does WOC offer support for Turbine Primary Trip Terminal Boards?

Yes, WOC provides repair services, replacement parts, and expert support for Turbine Primary Trip Terminal Boards. They also offer warranties on unused and rebuilt boards.