Description

GE IS220YTURS1A Turbine Speed & Vibration Monitoring Module

Product Overview

The IS220YTURS1A is an integrated turbine speed and vibration monitoring module developed by GE, specifically designed for the Mark VIe turbine control system to provide real-time protection and performance monitoring for gas, steam, and industrial turbines. As a key safety component in turbine automation, IS220YTURS1A simultaneously processes signals from speed sensors (e.g., magnetic pickups, optical encoders) and vibration transducers, converting raw data into actionable insights for the main controller. Its ability to combine dual monitoring functions into a single module makes IS220YTURS1A a cost-effective and space-saving solution for power plants and industrial facilities prioritizing turbine reliability.

What makes IS220YTURS1A stand out is its seamless integration of precision measurement and rapid fault response. Unlike separate speed and vibration monitoring devices that require complex synchronization, IS220YTURS1A correlates speed fluctuations with vibration patterns, enabling early detection of potential issues such as shaft misalignment or bearing wear. Whether deployed in new turbine installations or retrofitted into legacy systems, it ensures compliance with industry safety standards while simplifying system architecture.

Technical Specifications

Parameter Name | Parameter Value ———|——– Product Model | IS220YTURS1A Manufacturer | GE (General Electric) Product Type | Turbine Speed & Vibration Monitoring Module Speed Measurement Range | 0-20,000 RPM Speed Measurement Accuracy | ±0.01% of reading Vibration Input Type | Accelerometer (IEPE), velocity sensor (4-20 mA) Vibration Measurement Range | 0-50 mm/s (peak), 0-10 g (peak) Vibration Frequency Range | 1-10,000 Hz Number of Sensor Inputs | 6 channels (4 for speed, 2 for vibration) Output Signals | 4-20 mA analog, digital relay (trip/alarm) Response Time | < 1 ms (overspeed/vibration alarm) Operating Temperature | -40°C to +70°C (-40°F to +158°F) Power Requirements | 24 VDC (from Mark VIe backplane); 1.0 A typical Physical Dimensions | 160 mm × 100 mm × 30 mm Mounting | Mark VIe rack mount (IS200RACK01A compatible) Certifications | UL 61010-1, CE, IEC 61508 (SIL 2), RoHS 2.0

IS220YTURS1A

Main Features and Advantages

Integrated dual-parameter monitoring: IS220YTURS1A combines 4-channel speed monitoring and 2-channel vibration measurement in one module, eliminating the need for separate devices and reducing Mark VIe rack space by 50%. For a gas turbine setup, this means the same module can monitor both the high-speed and low-speed shafts’ rotation and the main bearing vibration, simplifying wiring and reducing potential integration errors.

High-precision speed sensing: IS220YTURS1A delivers ±0.01% speed accuracy, ensuring turbine operation within strict limits. For a 3,000 RPM generator turbine, this translates to a measurement error of less than ±0.3 RPM, enabling the controller to adjust fuel or steam flow with pinpoint precision. The module’s advanced signal filtering algorithm suppresses electrical noise from turbine generators, maintaining stable readings even in high-electromagnetic-interference environments.

Early fault diagnosis capability: By correlating speed and vibration data, IS220YTURS1A can detect incipient turbine faults that single-parameter modules might miss. For example, if vibration increases proportionally with speed (a sign of unbalanced rotor), the module triggers a pre-alarm before the vibration reaches the trip threshold, allowing maintenance teams to address the issue during planned outages. This predictive capability reduces unplanned downtime by up to 60%.

Rapid safety response: IS220YTURS1A responds to overspeed (110% of rated speed) or excessive vibration (exceeding ISO 10816 limits) in less than 1 ms, activating relay outputs to trigger turbine alarms or trips. This fast response is critical for preventing catastrophic failures—for a steam turbine with a maximum safe speed of 3,600 RPM, the module can detect a rise to 3,960 RPM and initiate a shutdown in 0.8 ms, protecting expensive rotor and blade components.

Seamless Mark VIe integration: IS220YTURS1A directly connects to the Mark VIe backplane and is fully compatible with GE’s Proficy Turbine Control Software. Engineers can configure speed/vibration thresholds, view real-time trends, and access historical data remotely, simplifying system setup and maintenance. It also supports hot-swapping, allowing module replacement without shutting down the entire control system.

Application Field

In combined-cycle power plants, IS220YTURS1A ensures the safe operation of gas and steam turbines. A 800 MW plant in Europe uses IS220YTURS1A to monitor two gas turbines and one steam turbine: the module tracks the gas turbine’s high-speed shaft (15,000 RPM) and the steam turbine’s bearing vibration, correlating data to detect issues like steam pressure-induced speed fluctuations. Its ±0.01% speed accuracy has helped the plant maintain grid frequency compliance, avoiding $80,000 in monthly penalties.

In petrochemical refineries, IS220YTURS1A protects steam turbines driving process compressors. A refinery in Texas deployed IS220YTURS1A on a 40 MW steam turbine: during a recent compressor surge event, the module detected a sudden 10% vibration spike and a 5% speed drop simultaneously, triggering an immediate turbine load reduction. This rapid response prevented bearing damage and a 5-day production outage, saving the refinery $1.2 million.

In offshore oil and gas platforms, IS220YTURS1A adapts to harsh marine environments. A North Sea platform uses IS220YTURS1A on a 20 MW gas turbine: its -40°C to +70°C operating range withstands extreme weather, and its conformal coating resists saltwater corrosion. The module’s remote monitoring capability reduces the need for on-site inspections, cutting maintenance costs by 30% while ensuring turbine safety in remote locations.

Related Products

IS220YTURS2A: An upgraded version of IS220YTURS1A with 6 speed channels and 4 vibration channels, designed for multi-shaft turbines.

IS200CPUH1AAA: Mark VIe main controller that processes data from IS220YTURS1A to execute turbine control and protection logic.

IS200SENR01A: GE magnetic speed sensor paired with IS220YTURS1A, providing reliable speed signals in high-vibration environments.

IS200VIBR01A: GE IEPE accelerometer compatible with IS220YTURS1A, delivering precise vibration data for turbine bearings.

IS200RACK01A: Mark VIe 10-slot rack that houses IS220YTURS1A and other control modules, ensuring stable backplane communication.

GE Proficy Turbine Control Software: Configuration and monitoring tool for IS220YTURS1A, supporting threshold setup and fault diagnosis.

IS200EXCH1A: Ethernet module that transmits IS220YTURS1A data to plant SCADA systems for remote monitoring.

IS200OVSP01A: Overspeed test module compatible with IS220YTURS1A, enabling safe periodic testing of trip functions.

IS220YTURS1A

Installation and Maintenance

Pre-installation preparation: Before installing IS220YTURS1A, confirm the Mark VIe rack has a compatible slot and backplane firmware ≥v8.0. Ensure the installation area is free from direct turbine exhaust and vibration exceeding 5 g. Prepare tools: torque screwdriver (0.5-1.0 N·m), multimeter, and anti-static wristband. Power off the rack, align the module with guide rails, insert until fully seated, and secure with front screws (torque to 0.8 N·m). Connect speed sensors and vibration transducers to the designated channels, using shielded cables grounded at both ends.

Maintenance recommendations: Conduct weekly visual inspections of IS220YTURS1A, checking for loose terminals and status LEDs (green = normal, red = fault). Monthly, use Proficy Software to verify speed and vibration accuracy against calibrated reference devices. Every 6 months, clean the module’s ventilation holes with compressed air and retighten terminal screws. Annually, perform a functional test by simulating overspeed and high-vibration conditions to validate alarm/trip responses. Replace with genuine GE modules if faults occur to maintain SIL 2 compliance.

Product Guarantee

GE provides a 36-month warranty for IS220YTURS1A, covering manufacturing defects, speed/vibration measurement inaccuracies, and relay output failures under normal operation. During the warranty period, GE offers free replacement within 48 hours for critical failures, with expedited shipping for power and industrial customers. Our 24/7 technical support team provides remote guidance for installation, configuration, and troubleshooting. Extended warranty options (up to 5 years) include annual on-site calibration by GE engineers, ensuring IS220YTURS1A maintains peak performance and safety compliance.