Part number: DS200PTBAG1B
Manufacturer: General Electric
Series: Mark V LM
Product type: Terminal board
Availability: In stock
Manufacturing Country: United States (USA)
Manual: GEH-6153
The DS200PTBAG1B is a protective terminal board manufactured by General Electric and is part of the Mark V-LM family used in gas turbine control systems. The P1 kernel's signal is terminated by a protection terminal module (PTBA) located in the kernel. In P1, input signals for high and low voltage shaft speed, flame detection, generator and bus voltage, and generator current fall on the PTBA terminal board and are connected to the TCEB board. The R1 core is also connected to the speed signal.
DS200PTBAG1B features
The PTBA terminal board reads external trip input signals, generator and bus signals, and generator breaker closing signals, and then writes them directly to the turbine trip (TCTG) board in the P1 core. The PTBA terminal board is used to write the trip output signal and the generator breaker closing signal from the TCTG board to the unit. Using the hardware jumper on the PTBA board, the audio alarm (horn) of the TCEB board is energized. It has 2 3-pin connectors, 1 LED on the side of the board, and 8 jumpers. Also included are two 50-pin connectors and a 10-LED block.
The LED on the side of the board has ID CR9. When it lights up, it is green, indicating that the circuit board is being powered on. A blinking LED indicates that the board is processing information. Boards that are not energized or respond to voltage will not light up the LED. The LED is visible when the circuit board is mounted in a rack cabinet between other circuit boards. From the window of the rack cabinet, you can see the LED.
DS200PTBAG1B application
The speed sensor for the main overspeed defense turbine is usually connected to the pulse rate input on the PTBA terminal board at P1 core position 6.
The HP and LP axes fall on the PTBA terminal board of the P1 core and write the X and Y boards in emergency overspeed protection.
Flame detection circuit TCEA UV flame detector signal is fed into PTBA board through P1 core. These signals are read from the PTBA terminal board to the TCEB board via the JVA and JU connectors and written to the TCEA board via the JK (JKX/Y/Z) connector.
DS200PTBAG1B connector
JJR - Writes high and low pressure shaft speed signals to the TCQE board in the R1 core.
JM - In the P1 core, reads and writes the generator circuit breaker signal (52GL) and the emergency trip output to and from the TCTG board.
JN - In the P1 core, read and write the generator breaker signal (G125P), write the enable signal to the horn, and read the external trip signal of the TCTG board.
JU - Sends emergency overspeed, flame detection and audible alarm (horn) enable signals to the TCEB board in the P1 core.
JV - In the P1 core, generator and bus voltage signals as well as current signals (PT and CT) are written to the TCEB board.
JVA - Transfers 335 V DC from the TCEB board in the P1 core to the flame detection equipment.
JJS/T - not commonly used.
