Description

GE IS200EPSMG1ABB Product Description

Product Overview

The GE IS200EPSMG1ABB is a high-reliability exciter power supply module designed for GE’s Speedtronic Mark VIe distributed control system and EX2100 excitation regulator in gas, steam, and hydro turbine applications. As a critical component in turbine excitation control, it converts the 125V DC input from the EPDM (Exciter Power Distribution Module) into stable, isolated DC outputs (+5V, ±15V, +24V DC) to power the EX2100 regulator and associated control modules. This ensures precise voltage regulation, fault protection, and seamless integration with the Mark VIe system’s digital control architecture.

Engineered for rugged industrial environments, the module features a 1U rack-mount form factor with a compact design (80mm × 150mm × 60mm) and conformal coating for resistance to dust, humidity, and vibration. Built-in LED indicators on the front panel monitor power status (P5, P15, N15, P24A, P24B, N24B, P70), enabling real-time diagnostics and quick troubleshooting.

Technical Specifications

IS200EPSMG1ABB

Main Features and Advantages

Precision Power ConversionThe module employs advanced buck regulators and push-pull inverters to convert 125V DC to stable outputs with tight voltage regulation (±5% tolerance). Galvanic isolation (2500Vrms) protects against voltage spikes and ground loops, ensuring signal integrity in high-noise environments like turbine halls.

Redundancy and Fault ProtectionIn redundant Mark VIe systems, two IS200EPSMG1ABB modules are deployed (primary and redundant), providing uninterrupted power during maintenance or component failure. Built-in overcurrent and short-circuit protection safeguards connected modules from damage.

Compact and Modular DesignThe 1U rack-mount form factor minimizes space in control cabinets, while the modular layout simplifies replacement. The lightweight construction (0.3kg) and conformal coating enable reliable operation in harsh conditions with high vibration and humidity.

Real-Time DiagnosticsLED indicators on the front panel clearly show the status of each output voltage (e.g., P24B for +24V DC output B). Faults are logged in the Mark VIe HMI, allowing quick identification of issues such as input voltage irregularities or communication failures.

Application Field

The IS200EPSMG1ABB is critical in power generation and industrial turbine applications where stable excitation control is essential:

Power Plants: Powers EX2100 regulators in gas/steam turbines to maintain grid stability. A 750MW coal-fired plant in India reported a 40% reduction in maintenance costs after adopting this module.

Hydroelectric Facilities: Ensures reliable voltage control for hydro turbine generators, even in remote or harsh environments.

Oil & Gas: Protects turbine-driven compressors from electrical faults caused by saltwater corrosion and vibration. A Gulf of Mexico platform used the module to detect a developing ground fault, avoiding a $200,000 shutdown.

Related Products

GE IS200EROC: Exciter regulator options card that communicates with IS200EPSMG1ABB to enable advanced fault detection.

EX2100 Excitation Regulator: GE’s flagship excitation system paired with IS200EPSMG1ABB for voltage control and protection.

GE IS200TPSAG1A: Redundant power supply module ensuring stable 125V DC input to IS200EPSMG1ABB.

GE IS200EPSMG2AEC: Earlier-generation power supply module with dual input voltage support (125V DC or 380–480V AC).

IS200EPSMG1ABB

Installation and Maintenance

Pre-Installation Preparation:

Verify compatibility with Mark VIe systems (software version 7.0+).

Use ESD-safe tools (anti-static wristband, insulated screwdrivers) to protect the module’s components.

Label cables to match terminal markings (e.g., “TB1-COMMON,” “TB2-ALARM”) to avoid wiring errors.

Maintenance Recommendations:

Perform monthly visual inspections for loose connectors, corrosion, or illuminated fault LEDs.

Use compressed air (30 PSI max) to clean dust from the module and rack.

Quarterly, test redundant input failover via the Mark VIe HMI and measure output voltage with a multimeter (e.g., +24V DC ±5%).

Replace the module with a factory-calibrated unit if faults persist, ensuring compliance with GE’s excitation system protocols.

Product Guarantee

GE provides a 1-year standard warranty covering material defects and workmanship, including free replacement and 24/7 technical support. Extended warranties (up to 3 years) are available for critical applications, ensuring optimal performance and compliance with industry standards.