Marine Low Voltage Transformer

Rated capacity:

3, 5, 10, 16, 20, 25, 30, 40, 50, 63, 80, 100, 160, 200, 315, 400, 500, 630, 800kVA;

Rated voltage:

HV: 0.23, 0.39, 0.4, 0.45, 0.69kV;

LV: 0.025, 0.115, 0.12, 0.23, 0.39, 0.4kV;

Rated frequency:

50Hz 60Hz;

Marine low-voltage transformers, as the core equipment of the ship's power system, are designed to meet the harsh requirements of the Marine environment. The core features are divided into five aspects:

1. Adaptability to extreme environments

The core in extreme environments lies in the combination of triple protection (salt spray/moisture/mold) and vibration and shock resistance design, with vacuum-cast epoxy resin windings (partial discharge <5pC), IP56 protective housing and 45° bevel seam core structure. It can operate stably under harsh conditions of humidity ≤95%, temperature -25 ° C to 45 ° C, and ship sway ≤22.5°.

2. Electrical performance and safety

In the collaborative design of "harmonic suppression (THD≤4.4%) + pre-magnetization technology (reducing inrush current by 60%) + dual isolation protection", multiple pulse windings are used to suppress 5/7/11th harmonic interference, and the electrical connection between the primary and secondary sides is blocked through dual winding isolation. Meanwhile, the pre-saturated core prevents false tripping of the circuit breaker. To ensure the safe operation of the ship's precision equipment in complex electromagnetic environments

3. High reliability and ease of maintenance

To support quick disassembly and maintenance for modular design + epoxy cast dry structure for 20 years of maintenance-free, such as the CSD series with double-nut spring pad body positioning and IP56 protection cabinet, it maintains winding temperature rise ≤59.3K even when the ship's sway is ≤22.5°, without the need for oil filtration or regular sealing treatment.

4. Economy and Energy Efficiency

With a double breakthrough of "25%-30% cost reduction in domestic production + high-frequency solution (efficiency >98%)", the volume is reduced by 30%-50% through 20kHz high-frequency technology, copper loss is reduced by 10.6% and iron loss by 6.9%, while the self-coupling design reduces the cost by 40% compared to the isolated type (equivalent capacity ≈17% output power). Significantly improve the cost performance throughout the life cycle

5. Scenario adaptation and certification

In terms of "multi-scenario customization solution + mandatory classification society certification", it adopts IP56 protection + 24-pulse harmonic suppression solution and has been certified by classification societies such as CCS (China) and ABS (USA), meeting IMO Tier III emission and extreme temperature (-40 ° C) requirements.

1. Ambient temperature: -25 to 55 ° C; Relative humidity of air: ≤95%;
2. There are effects of condensation, oil mist and mold;
3. Swing Angle ±45 °, cycle 3 to 14 seconds;
4. The tilt is ±15 °, and the transformer installed on the ship can withstand a short tilt of ±30 °, each 180S;
5. Shock and vibration are present;
6. The transformer installed on the speedboat can withstand the shock and jolting of the waves.

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