ALSTOM N895314513L

Description

Product Overview and Description

The ALSTOM N895314513L is a critical power supply module designed for the Alstom (now GE Grid Solutions) MICROSCADA SYS600 platform and related substation control systems. This module’s primary function is to provide highly reliable, isolated, and well-regulated DC power to the system’s processing modules, communication cards, and I/O units within a substation automation bay or control cabinet. The ALSTOM N895314513L ensures the integrity of the control system by converting a primary AC or DC input into the precise, clean voltage rails required for sensitive digital electronics, even in the presence of harsh electrical noise and transients common in high-voltage environments.

Product Parameters

• Module Type: System Power Supply Unit (PSU).
• Compatibility: Alstom/GE SYS600 / DICOMM Substation Automation Platforms.
• Input Voltage Range: Typically designed for a wide range of utility-grade inputs, such as 85-264V AC (50/60 Hz) and/or 110-300V DC, to accommodate various substation battery systems.
• Output Voltages: Provides multiple isolated DC output rails, commonly including:
  • +5 V DC (for digital logic and processors)
  • ±12 V DC or ±15 V DC (for analog circuits and communication interfaces)
  • +24 V DC (for internal logic or field I/O power).
• Output Power / Current: Rated for a specific total wattage (e.g., 40W, 60W) with current limits per output rail.
• Efficiency: High efficiency design to minimize heat generation.
• Protection Features: Includes overvoltage protection (OVP), overcurrent protection (OCP), short-circuit protection (SCP), and thermal shutdown.
• Isolation: High dielectric isolation (e.g., 3000 V AC) between input, output, and chassis for safety and noise immunity.
• Redundancy Support: May support parallel operation or be part of a hot-swap redundant power system for high-availability applications.
• Cooling: Convection or forced air cooling, depending on power rating.
• Mounting: Designed for chassis or DIN-rail mounting within the system rack.

Advantages and Key Features

1. Utility-Grade Reliability: The ALSTOM N895314513L is engineered for 24/7/365 operation in critical infrastructure, offering exceptional mean time between failures (MTBF) and built-in protection against grid disturbances.
2. Wide Input Voltage Range: Its ability to accept both AC and a wide range of DC inputs directly from substation batteries makes it incredibly versatile and ensures continuous operation during AC mains failures.
3. Superior Noise Immunity: Extensive filtering and high isolation provide clean, stable output power even in the electromagnetically noisy environment of a switchyard, preventing system resets or data corruption.
4. Comprehensive Protection: Multiple layers of electrical protection safeguard both the power supply itself and the expensive downstream control modules from damage due to faults or abnormal conditions.
5. Seamless System Integration: As a native component, the ALSTOM N895314513L is mechanically and electrically designed to plug directly into the system backplane, ensuring perfect fit, cooling, and logical management within the SYS600 environment.

Application Cases in Various Fields

• Transmission Substation Bay Controller: Providing clean power to the CPU, communication modules (e.g., IEC 61850 GOOSE), and I/O cards in a line protection and control bay.
• Distribution Automation Cabinet: Powering a remote terminal unit (RTU) or feeder management relay in a compact outdoor cabinet, where the ALSTOM N895314513L handles wide temperature swings and voltage fluctuations.
• Hydroelectric Plant Control System: Serving as the dedicated power source for a local control unit managing governor, exciter, and switchgear interfaces.
• Industrial Power Distribution: Used in the main control cubicle of a large manufacturing facility’s captive substation to power the automation system monitoring medium-voltage breakers and transformers.

Comparison with Competing Products

The ALSTOM N895314513L competes with power supply units from other major grid automation vendors like Siemens (SITOP), ABB, and SEL. Compared to standard industrial power supplies, it offers much wider input ranges (especially DC), higher isolation ratings, and specific certifications for utility applications. Its primary advantage is its guaranteed compatibility and form-factor fit within the Alstom SYS600 hardware ecosystem, simplifying spare parts management and ensuring no integration issues. While third-party industrial PSUs might be lower cost, they may lack the necessary DC input range, filtering, or formal approval for use in the specific control system, potentially voiding warranties or system certifications.

Selection Suggestions and Precautions

• Selection Advice:
  • System Audit: Confirm this is the exact PSU model specified for your SYS600 chassis or bay controller model. Verify the required input voltage (AC or DC) matches your available supply.
  • Power Budget Calculation: Sum the power consumption of all modules in the rack to ensure the ALSTOM N895314513L‘s total output wattage and per-rail current ratings are not exceeded. Include a safety margin (typically 20-30%).
  • Redundancy Needs: For mission-critical bays, specify a system configured with redundant power supplies. Ensure the chassis and power supplies support this mode of operation.
• Important Precautions:
  • High-Voltage Safety: Installation and maintenance must be performed by qualified personnel following strict electrical safety procedures (lockout/tagout). The input terminals may be connected to live AC mains or unfused DC battery banks.
  • Proper Ventilation: Ensure adequate airflow around the module as per the installation manual. Overheating is a primary cause of power supply failure.
  • Input Fusing: Always protect the input line with a properly rated fuse or circuit breaker as specified in the system design documentation.
  • Grounding: Connect the protective earth (PE) terminal securely to the cabinet’s grounding busbar. Proper grounding is critical for safety and noise performance.
  • Storage & Handling: If kept as a spare, store the ALSTOM N895314513L in a controlled environment. Periodically “exercise” spare units according to manufacturer guidelines to keep internal capacitors formed.
  • Authorized Sources: Source this critical component from GE Grid Solutions or authorized distributors to guarantee authenticity, receive the correct firmware/hardware revision, and ensure full compatibility.

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