Tanaka Electric Tanaka Electric

High-Precision Instrument Transformer Factory & Exporter in Samoa

Partnering with utility providers across Samoa and the Pacific Rim to supply IEC-compliant Current Transformers (CT) and Potential Transformers (PT) engineered for extreme marine environments and smart-grid integration.

Samoa's Grid Landscape: Adapting to 100% Renewable Targets

The Independent State of Samoa, under the direction of the Electric Power Corporation (EPC), is rapidly shifting its power generation from diesel toward solar PV, hydro, and wind installations. This paradigm shift creates critical challenges in voltage stability and power quality management.

For variable renewable energy (VRE) integration in substations across Upolu and Savai'i, precision monitoring is paramount. Fluctuations in solar irradiances require fast-acting, high-precision Instrument Transformers (Current and Potential Transformers) to feed precise data to SCADA control systems. Our outdoor products are explicitly engineered to address:

  • C5-M Coastal Corrosion Resistance: Specialized epoxy-resin casts that resist heavy salt spray and sea breeze decay.
  • Thermal Stability in Tropical Environments: Advanced microcomputer-controlled gradient curing process to handle 100% humidity without internal tracking or bubble-formation.
  • High Transient Recovery: Rapid detection capabilities designed to buffer erratic voltage spikes from solar farm feed-ins.

By supplying class-leading, dry-type, and oil-immersed configurations, we ensure that Samoan microgrids operate at maximum efficiency with reduced downtime.

High Voltage Instrument Transformer Casting Unit

Zhejiang Tanaka Quality Inspection Laboratory & Curing Equipment

Global Trends & Smart Grid Demands

How modern utilities leverage smart monitoring, low carbon footprint materials, and digital substation protocols.

Amorphous Alloy Core Adoption

Utilizing amorphous alloy cores within hybrid configurations slashes core losses by up to 70% compared to traditional silicon steel sheets, substantially improving transmission efficiency in decentralized grids.

IEC 61850 Interoperability

Modern electrical infrastructure demands seamless compliance with standard protocol systems. Our measurement modules directly map output parameters to smart telemetry relays and industrial RTUs.

Hermetically Sealed Durability

Outdoor components face severe tropical cyclones in the Pacific. We design full epoxy-encapsulation structures that are IP67 and IP68 water-proofed, ensuring high BIL (Basic Insulation Level) limits.

Advanced CNC Winding and Casting Lines

Tanaka CNC Automatic Foil and Static Vacuum Casting Lines

Zhejiang Tanaka Electric Co., Ltd. - Smart Factory 4.0

Established in 2005, Zhejiang Tanaka Electric Co., Ltd. has grown into a premier high-tech enterprise focusing on manufacturing, R&D, and global delivery of medium to high voltage instrument transformers. With a registered capital of 110 million RMB, our facility embodies China's Factory 4.0 automation model.

We leverage a technical team comprised of 15 senior engineers, over 30 intermediate technicians, and 17 senior technicians. Our persistent investment in research has secured 18 national patents in epoxy insulation, loss-optimization, and sensor structures.

Our workshop features over 120 sets of advanced machinery:

  • CNC Automatic Winding Machines
  • CNC Static Vacuum Casting chambers
  • Automatic Foil Winding Systems
  • Microcomputer-Controlled Gradient Curing Furnaces

This automated ecosystem guarantees a "zero defects" quality chain, meeting ISO9001 and ISO14001 operational standards, ensuring reliable global logistics for projects in Samoa and Oceania.

110M

Capital (RMB)

18+

R&D Patents

62+

Technical Engineers

120+

Factory 4.0 Machines

Technical & Corporate Specifications

Review our manufacturing capability parameters and credentials designed to meet international tendering requirements.

Business Profile Parameter Detailed Manufacturing Capacity
Business Type: Manufacturer, Exporter & OEM Provider
Product Range: High & Medium Voltage Instrument Transformers, Power Distribution Substation Equipment, CT, PT
Key Offerings: Dry-Type Current/Potential Transformers, Oil-Immersed Distribution Transformers, Compact Substations
Total Workforce: 201 to 500 Skilled Professionals
Capitalization: 110 Million Renminbi (RMB)
Established: Founded in 2005 with continuous grid modernization projects
Quality Certificates: ISO9001 (Quality Assurance), ISO14001 (Environmental Management), CE, CCC Standards
Key Core Equipment: Microcomputer-controlled gradient curing lines, automatic foil winding & CNC static vacuum casting

Technical Q&A: Samoa Grid Specifications & Logistics

Everything procurement managers and utility engineers need to know about purchasing, compliance, and custom design.

Are your instrument transformers compatible with Samoa Electric Power Corporation (EPC) grids?

Yes. Our transformers are fully engineered to comply with AS (Australian Standards) and IEC 61869-2/3 standards, which form the base requirement of the Samoa utility grid. The units run effortlessly on the local 3-phase 50Hz transmission and distribution lines, whether rated at 11kV or up to 33kV/35kV/40.5kV lines. We provide comprehensive compliance certificates (CE, CCC, ISO9001) for all custom tender applications.

How does your factory protect outdoor CTs/PTs against Samoa’s high salinity and tropical humidity?

Our outdoor epoxy-resin instrument transformers are cast using specialized hydrophobic cycloaliphatic epoxy resin (HCEP) under a CNC static vacuum curing process. This eliminates micro-cavities (air bubbles) inside the casting, preventing partial discharge issues. In addition, the hardware parts are manufactured using hot-dip galvanized steel or stainless steel 316, achieving a C5-M high corrosion resistance rating suitable for marine coastal zones.

What is the standard lead time and shipping route to Samoa (Apia Port)?

For standard models, manufacturing is completed within 3 to 4 weeks. Custom designs containing specific ratios or dual wind parameters may require 6 weeks. We ship directly out of Ningbo or Shanghai port. Cargo is routed directly to the Port of Apia (Samoa) with shipping times ranging from 25 to 35 days depending on the ocean line schedules. We handle all export documentation, including Certificate of Origin, ensuring a smooth customs process in Apia.

Can you manufacture split-core current transformers for retrofitting existing Samoa power substations?

Absolutely. Our split-core current transformers, such as the outdoor waterproof split-core model or the Xh-Sct series, are designed for hot-plug retrofitting. They allow installation on existing live busbars without needing to disconnect lines, reducing outages for installation in busy Samoa metropolitan and commercial sectors.

Do you support customized secondary ratios and accuracy classes like 0.2s or 0.5s?

Yes. Zhejiang Tanaka Electric provides bespoke winding adjustments. We customize metering cores to 0.2s or 0.2 accuracy class for premium revenue protection metering, and protection cores to 5P10, 5P20, or 10P20 for secure grid relay logic. Simply supply your burden requirements (e.g., 10VA, 15VA, or 30VA) and primary/secondary currents (e.g., 100A/5A, 1000A/1A), and our engineering team will calculate the optimal core design.

Empower Your Grid With Precision Engineering

Partner with Zhejiang Tanaka Electric Co., Ltd. for dependable supply lines, high efficiency cores, and ruggedised designs custom-built for Samoa and global projects.

Connect With Our Engineering Team