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SPECIFICATIONS:
Part Number: IS230TPROH1C
Manufacturer: General Electric
Series: Mark VIe
Number of Inputs: 9
Product Type: Emergency Protection Terminal Board
Power supply voltage: 28 V dc
Voltage Range: 14 to 32 V dc
LVDT excitation output: 3.2 ±0.2 kHz
Outputs: 24 V dc
Mounting: DIN-rail mounting
Technology: Surface mount
Operating temperature: -30 to 65°C
Size: 33.02 cm high x 17.8 cm
Repair: 3-7 Day
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States
Manual: GEH-6421H
FUNCTIONAL DESCRIPTION:
IS230TPROH1C is an Emergency Protection Terminal Board manufactured by General Electric as part of the Mark VIe Series used in gas turbine control systems. TPRO provides the VPRO with speed signals, temperature signals, generator voltage, and bus voltage as part of an independent emergency overspeed and synchronization protection system. The protection system consists of triple redundant VPRO boards in a module separate from the turbine control system, controlling the trip solenoids through TREx (TREG, TREL, or TRES). TPRO supplies inputs to all three VPRO boards. The VPRO board provides the emergency trip function. Up to three trip solenoids can be connected between the TREx and TRPx (TRPG, TRPL, or TRPS) terminal boards. TREx provides the positive side of the 125 V dc to the solenoids and TRPx provides the negative side. Either board can trip the turbine. VPRO provides emergency overspeed protection and emergency stop functions. It controls the 12 relays on TREG, nine of which form three groups of three to vote inputs controlling the three trip solenoids. A second TREG board may be driven from VPRO through J4.
INSTALLATION:
The generator and bus potential transformers, analog inputs, and thermocouples are wired to the first terminal block on TPRO. The magnetic speed pickups are wired to the second block. Jumpers JP1A and JP1B are set to give either a 4-20 mA or voltage input on the first of the three analog inputs. Two cables go to each of the three VPRO boards.
OPERATION:
The main purpose of the TPRO is to supply speed signals to VPRO for the emergency overspeed (EOS) protection for the turbine. In addition, TPRO supplies generator signals for backup synchronization check protection, three analog current inputs, and nine thermocouple inputs, primarily for exhaust over-temperature protection on gas turbines. VPRO provides 28 V dc to TPRO to power the three analog input transmitters.
SPEED CONTROL AND OVERSPEED PROTECTION:
Speed control and overspeed protection are implemented with six passive, magnetic speed pickups. The first three are monitored by the controller, which uses the median signal for speed control and the primary overspeed protection. The second three are separately connected to the three VPROs in the protection module. Provision is made for nine passive magnetic speed pickups or active pulse rate transducers (TTL type) on the TPRO terminal board, with three being monitored by each of the three VPROs.
WOC has the largest stock of GE Distributed Control System Replacement Parts. We can also repair your faulty boards. WORLD OF CONTROLS can also supply unused and rebuilt 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.
What is an Emergency Turbine Protection Terminal Board (ETPTB)?
An ETPTB is a specialized terminal board designed to protect turbines and associated systems during emergency conditions, such as power outages or turbine malfunctions.
How does an ETPTB function?
The ETPTB serves as a control and monitoring interface for turbine protection systems. It receives signals from various sensors and instruments to detect abnormal conditions and triggers protective actions to prevent turbine damage.
How are boards packaged for shipment from WOC?
Parts are placed in antistatic packets and securely packed in ESD boxes cushioned with ESD Foam designed to safeguard electrical components.
