Company and Global Network

Terasaki Electric Co., Ltd. operates globally with offices in Japan, China, Germany, Korea, Singapore, Australia, Brazil, USA, and the Middle East. The company holds ISO9001 and ISO14001 certifications, emphasizing quality and environmental management. Their worldwide service network supports marine and offshore electrical equipment.

Product Overview: Group Starter Panels (GSP)

The Group Starter Panels are designed for marine applications, complying with IEC60439-1 Form 3a and 3b standards. They are certified and CE marked, with Lloyd's Register factual statements confirming compliance.

Design and Safety Features

• Isolated bus bars and functional units reduce operator risk of contact with live parts.
• Terminals are isolated to prevent accident escalation.
• Weld-free construction enables easy disassembly and maintenance.
• Galvanized steel sheets enhance panel durability.
• High-performance TemBreak2 MCCBs improve circuit protection.
• Safety mechanisms include forced OFF, optional safety plugs, and insulated construction.

Functionality and Control

• Optimized integration and grouping of functions for reliable operation.
• Standardized internal wiring with locking cable connectors prevents incorrect connections.
• Relay and timer circuits replaced by PLCs, allowing software-based control changes without rewiring.
• PLC programming updates via EEPROM cassette, telephone line, or internet enable rapid response to specification changes.
• A single unified module card simplifies maintenance and inventory management.

Environmental Considerations

• Reduced parts count lowers environmental impact.
• Unitized construction allows separable disposal and recycling.
• Use of environmentally friendly materials prioritized.
• Printed materials use 100% recycled paper and soy-based inks.

Maintenance and Flexibility

• Cable connectors improve maintainability and inspection ease, designed with varied pin counts and polarity to avoid errors.
• Common attachments for 100A to 400A MCCBs enable quick installation/removal.
• Flexible design supports various starter control methods and circuit specifications, verified by flowcharts.
• Modular design and software control changes enable short delivery times.

Representative Circuit Components

Key components include MCCBs, ammeters, current transformers, magnetic contactors, thermal overcurrent relays, indicating lamps, push button switches, selector switches, starter modules, control power transformers, fuses, auxiliary relays, timer relays, and PLCs, each identified by type codes.

Class Approval and Compliance

• Approved by major marine classification societies: NK, ABS, LRS, DNV, GL.
• Compliant with IEC 60092 series, JIS, and JEM standards.
• Designed to meet marine classification society requirements.

PLC Integration and Control Circuitry

• Miniature PLCs replace all relay and timer control circuits, enhancing flexibility.
• Software-based control changes eliminate rewiring.
• Program updates via EEPROM cassette, telephone line, or internet.
• Single module card (ESM-1301) supports all starting methods.
• Control methods and specifications verified by flowcharts.

Starter Unit Specifications

• Unit height depends on main power circuit specifications.
• Motor capacity up to 90 kW at 3-phase 440V AC.
• Starter types: direct on line, reversible, non-reversible, two-speed, long time operation.
• Height ranges from 200 mm to 750 mm depending on motor capacity and starter type.
• MCCBs with interrupting capacities from 25kA to 120kA used.

Construction and Types of Starter Units

• Structural types include front access (GS22F), rear access (GS22B), draw-out rear access (GS22D), double face (GS22W), wall mount (GS22A), box type wall mount, and self-standing units.
• Draw-out units facilitate maintenance; double face units have double depth.
• Protection degrees range from IP22 to IP44.
• Paint finish is semi-polished (7.5BG 7/2).
• Cable entry points vary by model (bottom, back, top).

Electrical Ratings and Environmental Conditions

• Rated voltages: standard 440V AC; options for 380V AC and 415V AC available.
• Control voltages: 24V DC, 110V AC, 220V AC.
• Frequency: 50Hz and 60Hz versions.
• Ambient temperature: 0 to 45°C standard, up to 50°C optional.
• Bus bar current ratings: 2000A, 2200A, 2300A.
• Withstand voltage: 1500V AC for 1 minute (except printed circuit modules), up to 2200/2500V AC for main circuits.

Applications and Representative Circuits

• Used for motor control of pumps, compressors, blowers, and fans in marine environments.
• Representative circuits include standard, auto changeover, and auto start/stop auxiliary equipment control.
• Input/output points vary by application (10, 14, 20, 30 I/O points).

Advantages and Flexibility

• PLC-based control enables rapid specification changes and short delivery times.
• Software control reduces wiring complexity and improves maintainability.
• Flexible design supports delayed specification decisions and easy updates.

Additional Information

• Contact details for Terasaki Electric and global offices provided.
• ISO9001 and ISO14001 certifications held.
• Specifications and ratings subject to change without notice.
• Environmental efforts include use of recycled paper and eco-friendly inks for printed materials.