IS220PTURH1A GE Mark VIe

The IS220PTURH1A is a turbine protection module designed by General Electric (GE) for its Speedtronic Mark VIe series of control systems. Thanks to its hardware architecture independent of the main controller, fast response time, and ease of maintenance, it has become a core component in GE's Mark VIe control systems for ensuring the safe operation of turbines.

This module is technically referred to as the "main trip package." Designed to serve as the "last line of defense" for turbine safety, it provides an electrical interface between the turbine control terminal board and one or two Ethernet networks, enabling reliable transmission of data and control signals. It is specifically responsible for processing all critical signals directly related to turbine safety, such as overspeed protection and emergency shutdown. It is an indispensable component of safety protection strategies in heavy industries such as power generation, petroleum, and chemicals.

• Operating temperature: -30°C to +65°C
• Storage temperature: -40°C to +70°C
• Relative humidity: 5%-95%, non-condensing
• Explosion-proof rating: Class I Div 2 Groups A/B/C/D; ATEX Zone 2 IIC T4 Gc
• Protection rating: IP20 for the module itself; the accompanying control cabinet must be an explosion-proof cabinet with a rating of IP54 or higher
• Mounting method: Standard DIN rail mounting; compatible with Mark VIe standard control cabinets

• Extremely high safety: As a dedicated main trip unit, its hardware logic architecture—which is independent of the main controller—provides the highest level of safety protection for the turbine
• Easy Maintenance: The "automatic reconfiguration" feature greatly simplifies the module replacement process, reducing downtime and human error
• High Reliability: Designed for continuous operation, it maintains stability in harsh industrial environments and is a market-proven, mature product
• High Integration: As a native component of the Mark VIe system, it enables seamless integration, ensuring system integrity and compatibility

A steel mill's 15 MW on-site steam turbine, equipped with a single-redundancy Mark VIe system, uses a single IS220PTURH1A module to monitor the turbine speed and the emergency stop signal from the main steam valve.

The system has triggered multiple interlocked trips due to low lubricating oil pressure. The module accurately records the trip sequence, providing comprehensive data for tracing the root cause of equipment failures. By replacing outdated, non-diagnostic imported cards, it has significantly reduced downtime for maintenance.

Download Datasheet: GE-Mark-VIe-VIeS.pdf

IS200STCIH2AED, IS200STAIH2A, IS200STAIH2ABA, IS200STAIH2ACB, IS200STCIH2A, IS200STURH2AEC, IS200TAMBH1ACB, IS200TBAIH1C, IS200TBAIH1CCC, IS200TBAIH1CDC, IS200TBAOH1CCB, IS200TBCIH1BBC, IS200TBCIH1B, IS200TBTCH1CBB, IS200TBTCH1C, IS200TDBTH6A, IS200TDBTH6ACD...