GE IS200WREAH1ADB

GE IS200WREAH1ADB is a dedicated hardware trip terminal board for Mark VIeS air-to-gas turbine conversion. Its core function is to connect on-site hard protection contacts, circuit monitoring, and SSR hard output trip. It is independent of software and belongs to a three-redundancy safety protection circuit. The advantages are high reliability, hardware hard trip, and three-proof anti-interference. The greatest risks in use are incorrect plugging and unplugging, wrong jumpers, and incorrect model substitution. After all maintenance, replacement, and wiring modification, a protective transmission test must be conducted

Core Function

1. On-site tripping signal collection and transfer

Collect discrete tripping input signals from hard contacts such as local emergency stop, overspeed, pressure, and temperature, perform signal conditioning, and then send them to the main protection card. It serves as the front-end terminal interface board of the hardware tripping circuit.

2. Tripping circuit voltage monitoring

Conduct voltage inspections on 24V DC to 125V DC tripping power supply circuits, identify circuit disconnection, power loss, and short circuit faults, and send alarms.

3. Solid state relay SSR drive output

Equipped with multiple solid state relays, it outputs to drive tripping solenoid valves, locking circuits, and alarm hard contacts, performing hardware shutdown actions. It is independent of software logic and belongs to the safety hard circuit

4. Jumper configuration logic

On-board jumpers can be configured with tripping logic modes, normally open/normally closed signals, and loop switching, adapting to protection schemes of different models.

5. Electrical isolation

Photoelectric isolation is implemented between the on-site strong current side and the control logic side to suppress the reverse entry of on-site interference into the main control card and protect the core protection channel

6. Fault status feedback

Feed back the faults of the board card itself, channel faults, and abnormal states of the tripping circuit to the Mark VIe system, and generate event alarms and SOE sequential event records in the upper-level HMI

Product Advantages

1. High safety level: Independent hardware circuit, not dependent on controller software, can still complete emergency shutdown in the event of software crash, belongs to the SIL protection circuit component of gas turbines.

2 Special adaptation for Aero-derived gas turbines (Aero Trip) : Specifically designed for the protection logic of aero-derived gas turbines (aero-derived turbines), which is different from the logic definition and terminal distribution of the trip plate of ordinary thermal power steam turbines.

3. Cage rack installation: Standard Mark VIe machine frame board structure, stacked under the PPR main I/O board, mother board connector connection, neat cabinet wiring

4. Three-proof coating: The circuit board is equipped with a three-proof conformal coating, which is resistant to moisture, dust, and slight corrosion, and is suitable for harsh environments such as power plants, offshore platforms, and gas stations.

5. EMC anti-interference design: The on-board filter and shielding layout can withstand the electromagnetic interference caused by the start and stop of frequency converters and high voltage, ensuring that the trip signal does not trigger or fail to operate.

6. 24VDC main control power supply The standard control power supply is 24VDC, compatible with multiple DC trip power supply systems. The channels are independent, and a single channel failure does not affect the other trip channels

7. Triple redundancy system matching: Compatible with Mark VIe's triple redundancy protection architecture, three independent WREAH boards form a three-to-two tripping voting circuit, reducing the risk of single-point failure

8. Channels can be independently switched on and off: Through jumpers or internal configuration, a single protection channel can be temporarily withdrawn for maintenance without forcing the entire machine to shut down

Application scenarios

1. Aero-modified gas turbine units: Terminal transfer for emergency trip protection circuits of LM series and other aero-modified gas turbine power plants, distributed energy, and cogeneration units

2. Industrial gas turbines, small combined cycle power stations: hardwired interfaces for overspeed protection, flame loss, low lubricating oil pressure, exhaust over-temperature, high vibration, and local emergency stop button

3. Offshore gas-fired power generation platforms and self-owned oil and gas power stations: Power units with extremely high safety level requirements and no protection misoperation/failure to operate.

4. Mark VIeS system renovation and spare parts replacement: Upgrade of old units and replacement of faulty spare parts. Compatible with similar sub-boards such as IS200WREAS1ADB in the same series (terminal definitions are different and cannot be directly interchanged)

Related Product Recommendations

IS220UCSAH1A

IS200ESELH3AAA

IS215VCMIH2CB

IS200VCMIH2CAA

DS200DDTBG2ABB

CA4005B24D H41014(DS3800XTFP1E1C)

IS200DSPXH1DBD

IS200EACFG2ABC

IS200EPCTG1AAA

IS200EDCFG1AED

IS200EXAMG1AAB 

IS200EPDMG1BAA  

DS200FHVAG1ADA

DS200FCSAG2ACB

IS200EMIOH1AEB

IS200EMIOH1AFB

IS200ESELH3AAA

IS200EDCFG1AED

IS215ACLEH1BB

IS215ACLEH1BC

IS200EDEXG1BAA

IS200ECTBG1ACB

IS200EXHSG3AEB

IS200EGDMH1AFF

IS200EPDMG1BAA