IS210TREGH1B - Turbine Emergency Trip DIN Rail Module

SPECIFICATIONS:

Part Number: IS210TREGH1B
Manufacturer: General Electric
Series: Mark VIeS
Product Type: Turbine Emergency Trip DIN Rail Module
Number of Channels: 24
Number of inputs: 12
Number of trip solenoids: 3
Number of outputs: 125 V dc
Technology: Surface Mount
Suppression: MOV across the solenoid
Trip interlock isolation: Optical isolation to 1500 V
Dimensions: 17.8 cm wide x 33.02 cm
Operating Temperature: 30 to 65�C
Repair: 3-7 Day
Availability: In Stock
Country of Origin: United States
Manual: GEH-6421I

FUNCTIONAL DESCRIPTION:

IS210TREGH1B is a Turbine Emergency Trip DIN Rail Module manufactured and designed by General Electric as part of the Mark VIeS Series used in GE Distributed Turbine Control Systems. TREG provides power to three emergency trip solenoids and is controlled by the I/O controller. Up to three trip solenoids can be connected between the TREG and TRPG terminal boards. TREG provides the positive side of the depower to the solenoids and TRPG provides the negative side. The I/O controller provides emergency overspeed protection, and emergency stop functions, and controls the 12 relays on TREG, nine of which form three groups of three to vote inputs controlling the three trip solenoids. There are many board types as follows:

• The HIA version is not used for new production and is replaced by HIB. H1B is the primary version for 125v de applications. Control power from the JX1, JY1, and JZ1 connectors are diode combined to create redundant power on the board for status feedback circuits and powering the economizing relays. Power separation is maintained for the trip relay circuits.

• H2B is used for 24v de applications. All other features are the same as HIB. H3B is a special version of H1B for use in systems with redundant TREG boards. The feedback circuit and economizing relay power are provided only by the JXI connector.

• H4B is a special version of H1B for use in systems with redundant TREG boards. The feedback circuit and economizing relay power are provided only by the JY1 connector.

• H5B is a special version of H1B for use in systems with redundant TREG boards. The feedback circuit and economizing relay power are provided only by the JZ1 connector.

CONTROL OF TRIP SOLENOIDS:

• Both TRPG and TREG control the trip solenoids so that either one can remove the power and actuate the hydraulics to close the steam or fuel valves. The nine trip relay coils on TREG are supplied with 28 V dc from the I/O controller. The trip solenoids are supplied with 125 V de through plug J2 and draw up to 1 A with a 0.1 second L/R time constant.

• Note The solenoid circuit has a metal oxide varistor (MOV) for current suppression and a 10 �2, 70 W economizing resistor.

• A separately fused 125 V dc feeder is provided from the turbine control for the solenoids, which energize in the run mode and de-energize in the trip mode. Diagnostics monitor each 125 V dc feeder from the power distribution module at its point of entry on the terminal board to verify the fuse integrity and the cable connection.

• Two series contacts from each emergency trip relay (ETR1, 2, 3) are connected to the positive 125 V dc feeder for each solenoid, and two series contacts from each primary trip relay (PTR1,2,3 in TRPG) are connected to the negative 125 V dc feeder for each solenoid.

• An economizing relay (KE1, 2, 3) is supplied for each solenoid with a normally closed contact in parallel with the current limiting resistor. These relays are used to reduce the current load after the solenoids are energized.

• The ETR and KE relay coils are powered from a 28 V de source from the I/O controller. Each PPRO I/O pack in each of the R8, S8, and T8 sections supplies an independent 28 V dc source.

• The 28 V dc bus is currently limited and used for power to an external manual emergency trip contact, shown as E-STOP. Three master trip relays (K4X, K4Y, K4Z) disconnect the 28 V DC bus from the ETR, and KE relay coils if a manual emergency trip occurs.

• Any trip that originates in either the protection module (such as EOS) or the TREG (such as a manual trip) will cause each of the three protection module sections to transmit a trip command over the IONet to the control module and may be used to identify the source of the trip.

WOC has the largest stock of OEM Replacement Parts for GE Distributed 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:

What voltage does the module operate on?

The solenoids operate on 125 V DC, while the relay coils use 28 V DC supplied by the I/O controller.

How does the module provide safety during a trip event?

It uses redundant relay circuits and optical isolation (1500 V) to safely cut power to the solenoids, ensuring reliable turbine shutdown.

What suppression method protects the solenoid circuits?

A Metal Oxide Varistor (MOV) and a 10 Ohm, 70 W economizing resistor are used to suppress voltage spikes.

How is power redundancy managed?

Power from JX1, JY1, and JZ1 connectors is diode-combined to provide redundant power for relay circuits and feedback systems.