IS230STURH4A - Simplex Primary Turbine Protection Input Terminal Board

SPECIFICATIONS:

Part Number: IS230STURH4A
Manufacturer: General Electric
Series: Mark VIe
Number of Inputs: 4
Number of Outputs: 2
Product Type: Simplex Primary Turbine Protection Input Terminal Board
Technology: Surface Mount
MPU Pulse Rate Range: 2 Hz
Common Mode Voltage Range: ±5 V
MPU input circuit sensitivity: 27 mV
Contact voltage sensing: 20 V dc
Cooling: Free air convection
MPU pulse rate accuracy: 0.05% of reading
Size: 15.9 cm high x 17.8 cm
Temperature: -30 to +65 degrees
No.of Analog Voltage Inputs: 6
Repair: 3-7 Day
Availability: In-Stock
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

IS230STURH4A is a Simplex Primary Turbine Protection Input Terminal Board manufactured and designed by General Electric as part of the VIe Series used in GE Distributed Gas Turbine Control Systems. The Simplex Primary Turbine Protection Input (STUR) terminal board is a simplex S-type terminal board version of the turbine terminal board (TTUR). It provides a connection for the turbine-specific primary trip (PTUR), speed and synchronizing inputs, and trip relay outputs or a cable to drive a primary trip board. STUR is used for the following:

• Mechanical drives require overspeed protection but no synchronizing function.
• Generator drive systems require overspeed and primary synchronization.
• Other applications require the four pulse input circuits of PTUR.

This terminal board has the same physical size, customer terminal locations, and I/O pack mounting as other S-type terminal boards. There will be no components higher than an attached PTUR I/O pack permitting double stacking of terminal boards.

STUR FUNCTIONS:

• Provides a DC-62 pin connector for mounting a single PTUR I/O pack.
• Accepts up to four-speed input signals.
• A 48-terminal Euro-style box connector for customer connection points is supplied on the board.
• Provides two trip solenoid outputs, K1 and K2, with each composed of a safety relay (H1, H2).
• Provides a DC-37 pin connector for connecting a TPRG, TPRL, TPRS, or TPRA primary trip relay (H3, H4).
• Accepts two PT inputs supporting primary synchronization (H2, H4). They accept generator voltage and bus voltage signals taken from potential transformers.
• Provides two relay outputs supporting primary synchronization (H2, H4). Two relays, K25 and K25P, have to close to provide 125 V dc power needed to close the main breaker 52G.

OPERATION:

BOARD GROUPS: STUR is available in four distinct configurations. STUR is not available with fixed box terminals. It uses pluggable type terminals. Two groups offer on-board trip relays and two groups offer DC-37 pin connectors for using an external trip board. Components supporting generator applications will be omitted from two groups used for mechanical applications and added for groups used for generator applications.

SPEED INPUT: STUR provides four-speed input circuits that accept passive speed sensors or active speed sensors. When passive sensors are used the signal is applied between terminals PR#_H and PR#_L where # is 1 through 4. The sensitivity of the passive sensor input is such that the PTUR I/O pack can sense speeds as low as 2RPM. When active speed sensors are used the signal is applied between terminals TTL# and PR#_L.

TRIP RELAYS: STUR versions H1 and H2 provide two trip solenoid outputs, K1 and K2, with each composed of a safety relay that uses forcibly guided contacts. Relay position feedback is provided to PTUR using one of the contact pairs in the relay. Extra customer terminals are provided to allow connecting two or three STUR boards in a redundant tripping configuration.

WOC has the largest stock of GE Distributed Control System Replacement Parts. We 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.

FREQUENTLY ASKED QUESTIONS:

What types of inputs can be connected to this board?

The board typically accepts inputs from various sensors such as temperature sensors, pressure transducers, flow meters, and vibration sensors, among others.

How does the board protect the turbine?

By continuously monitoring input signals, the board can detect abnormal conditions or deviations from preset thresholds. It then triggers protective actions such as shutting down the turbine to prevent damage or unsafe operation.

What are the key features of this terminal board?

Some key features include multiple input channels, signal conditioning capabilities, alarm outputs, and configurable settings for different turbine types.