Description

Product Overview

The GE DS3820PSCC1D1B is a mission-critical power supply unit engineered for GE’s Mark IV Speedtronic turbine control systems. Designed to deliver stable +28.00 VDC at 6.0 A output, this module ensures reliable power for distributed control functions in steam and gas turbine applications, including start-up, speed regulation, and emergency shutdown sequences 15. Housed in a rugged rectangular enclosure with heat-dissipating vents and mounting flanges, it integrates seamlessly into GE’s Mark IV architecture, providing redundant power to critical subsystems like relay modules (DS3820RDMA1) and communication controllers (DS3820EPSA) 5.

Featuring screw-terminal connections and modular PCB design, the DS3820PSCC1D1B simplifies maintenance with accessible components, including large electrolytic capacitors, transformers, and thermistors. Its fail-safe design includes surge protection and overcurrent shutdown mechanisms, safeguarding against voltage spikes common in industrial environments 5. While primarily used in power generation and oil & gas sectors, this power supply also supports heavy manufacturing and water treatment applications requiring high-reliability DC power.

Technical Specifications

Parameter Name	Parameter Value
Product Model	GE DS3820PSCC1D1B
Manufacturer	General Electric
Product Type	Power Supply Unit (PSU) for Mark IV Turbine Control
Output Voltage	+28.00 VDC
Output Current	6.0 A
Input Voltage	120–240 VAC (50/60 Hz)
Efficiency	≥85% at full load
Operating Temperature	0°C to +50°C (32°F to 122°F) (derived from Mark IV series thermal design)
Protection Class	IP20 (dust protection)
Redundancy Support	Dual-unit parallel configuration for fault tolerance
Physical Dimensions	150mm x 100mm x 50mm (6″ x 4″ x 2″)
Weight	0.8 kg (1.76 lbs)
MTBF	≥100,000 hours (calculated for industrial environments)
Compliance	UL 508, IEC 61000-6-2 (EMC immunity)

Key Features and Advantages

Stable Power Delivery: The DS3820PSCC1D1B maintains +28.00 VDC output within ±1% tolerance under varying loads, ensuring consistent performance for turbine control electronics 1. Its 6.0 A capacity supports multiple I/O modules simultaneously, reducing the need for auxiliary power supplies.

Rugged Industrial Design: The enclosure’s heat-dissipating vents and reinforced mounting brackets withstand vibration and temperature fluctuations common in power plants. Internal components like heat sinks and surge suppressors enhance durability in high-voltage environments 5.

Modular Maintainability: Screw-terminal connections and accessible PCBs enable quick repairs, while diagnostic LEDs indicate power status and fault conditions. GE’s global repair network offers cost-effective refurbishment options for end-of-life units 3.

Redundancy Capability: When paired with another DS3820PSCC1D1B, the module supports N+1 redundancy, ensuring continuous operation during component failures. This is critical in applications where downtime costs exceed $1 million per hour 5.

Wide Input Range: Compatible with 120–240 VAC grids, the PSU adapts to diverse global power standards, eliminating the need for custom voltage converters in international deployments.

Application Areas

The GE DS3820PSCC1D1B is essential in high-reliability industrial systems:

Power Generation:
Powers GE Mark IV Speedtronic systems in steam and gas turbines, ensuring stable operation of critical subsystems like fuel control valves and vibration monitoring modules 15.
Oil and Gas:
Deployed in offshore platforms and refineries to provide redundant power for distributed control systems (DCS) managing wellhead actuators and flare gas recovery units.
Heavy Manufacturing:
Supports robotics and CNC machinery by delivering clean DC power to motion controllers and servo drives in automotive assembly plants.
Water/Wastewater Treatment:
Powers PLCs and motor control centers (MCCs) in water treatment facilities, ensuring uninterrupted operation of pumps and disinfection systems.
Transportation Infrastructure:
Used in railway signaling systems to supply power to trackside controllers and communication gateways, minimizing disruptions in mass transit networks.

Installation and Maintenance

Installation Preparation:

Verify input voltage compatibility (120–240 VAC) and connect the PSU to a dedicated circuit breaker.
Mount the module using its flanged brackets, ensuring at least 25mm clearance around vents for airflow.
Configure redundant units by connecting parallel outputs with cross-connect cables, following GE’s wiring diagrams.

Maintenance Recommendations:

Inspect capacitors for bulging or leaks every 6 months; replace if degraded.
Clean dust from vents quarterly to prevent overheating in high-dust environments.
Use GE-approved test equipment to measure output voltage stability during load tests.
For refurbished units, schedule annual recalibration to maintain ±1% voltage accuracy.

Product Assurance

GE offers a 1-year warranty on new DS3820PSCC1D1B units, covering defects in materials and workmanship. Refurbished units typically include a 90-day service warranty. The module meets UL 508 and IEC 61000-6-2 standards, ensuring compliance with North American and European safety regulations. GE’s global support network provides 24/7 technical assistance for troubleshooting and firmware updates.

Due to limited new stock availability, customers are advised to consider GE’s lifecycle management services, which include extended warranties and system retrofitting with modern PSUs like the GE IC697PWR731. By combining robust hardware with predictive maintenance, GE minimizes downtime and extends the operational lifespan of Mark IV installations.

Contact info

WhatsApp: +86 18030182217
Email: sandydcsplc@gmail.com
Phone: +86 18030182217
Wechat: +86 18030182217
Website: www.xiongbaparts.com

GE DS3820PSCC1D1B Power Supply Unit (PSU) for Mark IV Turbine Control(XIONGBA)