3. Why Mibo Electric Won: 3 Decisive Engineering Advantages

Under the stringent evaluation criteria of EDESUR-aligned utility specifications, Mibo Electric’s 34.5kV Combined Transformer stood out in three critical areas:

Advantage 1: Class 0.2s High-Dynamic Accuracy for Revenue Protection

In commercial, industrial, and distributed renewable energy connections, load currents fluctuate significantly.

• Standard Class 0.5 transformers suffer from measurement error spikes at light load conditions, resulting in unbilled energy losses.
• Mibo Electric utilizes Class 0.2s wide-range high-permeability core technology, maintaining a strict $\pm 0.2\%$ error margin across wide current ranges. This gives utility operators precise revenue metering and active loss reduction.

Advantage 2: Specialized Anti-Salt Spray Design for Island Environments

Airborne salinity in coastal island zones deposits conductive salt films on external insulation, causing premature aging and flashover faults.

• The unit’s outdoor insulation sheds are designed with high creepage distances and hydrophobic anti-tracking properties to resist contamination build-up.
• All exposed hardware and primary terminals utilize heavy-duty corrosion-resistant alloys, passing rigorous long-term salt-spray tests for maintenance-free outdoor operation.

Advantage 3: Integrated Compact Design Cutting Installation Costs

• Conventional installations require multiple discrete single-phase CTs and PTs, demanding excessive pole-top mounting space and substation bay footprint.
• Mibo Electric integrates 3-phase CT and PT measurement elements into a single unified assembly, reducing mounting footprint by approximately 45%, lowering pole structural stress, and cutting EPC installation time.

4. Benchmark Significance & International Sourcing

This deployment serves as a verified reference for utility operators, regional concessionaires, and EPC contractors seeking reliable medium-voltage measurement equipment:

• Proven Utility Benchmark: Demonstrates full compliance with the technical demands of EDESUR-2026-0021.
• Turnkey OEM/ODM Tender Support: Mibo Electric provides complete technical documentation, type test reports, and customized voltage/terminal configurations for international tenders across Latin America and global markets.

5. Frequently Asked Questions (FAQ)

Q1: What is the main advantage of a 34.5kV Combined Transformer over discrete CT and PT units?
A: A combined transformer houses both Current Transformer (CT) and Voltage Transformer (PT) coils within a single compact enclosure. This eliminates redundant wiring, reduces pole-top footprint by ~45%, lowers structural loading, and simplifies field installation.

Q2: Why is Class 0.2s accuracy critical for utility revenue protection?
A: The “s” designation specifies wide-range measurement accuracy. Class 0.2s maintains tight $\pm 0.2\%$ accuracy even under light load conditions (down to 1% of rated current), ensuring that energy delivered during off-peak hours is accurately metered without loss.

Q3: How does the unit resist Caribbean coastal salt-spray degradation?
A: The product features aerodynamic anti-pollution insulation sheds with long creepage distances and marine-grade corrosion-resistant hardware. It has successfully passed comprehensive salt-spray testing, preventing surface tracking and insulation breakdown.

6. Sourcing & Technical Inquiry

Looking to specify or procure 34.5kV Class 0.2s Combined Transformers for upcoming utility tenders, substation retrofits, or distribution line projects?

• Manufacturer: Mibo Electric Group Co., Ltd.
• Product Range: Medium-Voltage Combined Transformers (CT/PT units), Outdoor Current Transformers, and Outdoor Voltage Transformers up to 34.5kV / 36kV.
• Inquiry: Contact our international engineering and tender support team for complete technical datasheets, certified test reports, and project quotations.