DS200TCTGG1ADC - Simplex Trip Board

SPECIFICATIONS:

Part Number: DS200TCTGG1ADC
Manufacturer: General Electric
Series: Mark V LM
Product Type: Simplex Trip Board
Number of channels: 16
Analog output current: 0-20 mA
Operating temperature: -30 to 65 °C
Size: 10.16 cm wide x 33.02 cm
Frequency: 50 or 60 Hz
Repair: 3-7 Day
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

DS200TCTGG1ADC is a Simplex Trip Board manufactured and designed by General Electric as part of the Mark V LM Series used in GE Speedtronic Turbine Control Systems. The Turbine Trip Board (TCTG) located in the core, is used to trip the turbine. Two forms of trip relays are available on the TCTG board. There are primary trip relays (PTR.s) and emergency trip relays (ETR.s). The PTR trips are initiated by the communication faults and the control sequence program while the ETR trips occur when the TCEA boards , , and in the core vote for an emergency trip. Hardwire trips de-energize the 24-volt supply to both the PTR and ETR relays and initiate a trip. The synchronizing relays are also located on the TCTG board.

TCTG CONNECTORS:

J7W - Distributes the 125 V dc power from the TCPD board in the core.
JDR - Reads the PTR trip signals from the TCQA board in the core, relays K10, 13, 16, and 19. Reads synchronized commands from the TCQA board in the core. Reads the generator and bus signals from the PTBA board. JDR, JDS, and JDT are all daisy chains connected to the TCTG board.
JDS - Reads the PTR trip signals from the TCQA board in the core, relays K11, 14, 17, and 20. Reads synchronized commands from the TCQA board in the core. Reads the generator and bus signals from the PTBA board. JDR, JDS, and JDT are all daisy chains connected to the TCTG board.
JDT - Reads the PTR trip signals from the TCQA board in the core, relays K12, 15, 18, and 21. Reads synchronized commands from the TCQA board in the core. Reads the generator and bus signals from the PTBA board. JDR, JDS, and JDT are all daisy chains connected to the TCTG board.
JLX - Reads the ETR trip signals from in the core. ETR relays K5 and K8 are fed by the JLX connector. Supplies the 24 V dc protective bus.
JLY - Reads the ETR trip signals from of the core. ETR relays K4 and K7 are fed by the JLY connector. Supplies the 24 V dc protective bus.
JLZ - Reads the ETR trip signals from of the core. ETR relays K6 and K9 are fed by the JLZ connector. Supplies the 24 V dc protective bus.
JN - Reads and writes signals to the PTBA terminal board in the core. These signals include the breaker close signal, hardwire trip signals, and the alarm horn signal.
JM - Reads and writes signals to the PTBA terminal board in the core. These signals include the breaker close signal and the emergency trip signals.

TCTG ETR RELAY CIRCUIT:

The TCEA boards , , and in the core generate the trip signals for the ETR relays. The signals are written to the TCTG board via the JLX/Y/Z connectors. The ETR relays perform a hardware level two out of three votes to determine if the unit should be tripped. If two out of three relays call for a trip, by opening and closing a series of related contacts on the TCTG board, the unit will trip. Signals that will trip the ETR relays are high-pressure shaft overspeed and rapid deceleration, low-pressure shaft overspeed and rapid deceleration, and cross-trip. The trip signals are then written to the PTBA terminal board via the JM connector.

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FREQUENTLY ASKED QUESTIONS:

What are the common trip events monitored by the Simplex Trip Board?

Common trip events include over-speed, over-temperature, low oil pressure, high vibration, and other conditions that could indicate potential damage to the turbine.

What are the key components of the Simplex Trip Board?

The board typically includes indicator lights, alarms, reset buttons, and sometimes a display screen for monitoring trip events and system status.

How is the Simplex Trip Board reset after a trip event?

Reset procedures vary depending on the specific turbine system and manufacturer. Typically, there is a reset button or sequence outlined in the turbine's manual that needs to be followed to reset the board after a trip event.