SC(B) Series Marine Transformer

The SC(B) Series Marine Transformer is a special type of dry-type transformer used in marine environments. It relies on air convection for cooling and does not use insulating oil. It offers advantages such as high safety, compact size, low maintenance costs, excellent flame retardancy, and strong heat dissipation and moisture resistance. Due to the limited space and extremely high safety requirements on ships, its performance in fire resistance, explosion resistance, and moisture resistance is particularly outstanding. It can withstand the harsh environments of ships, such as complex vibration, salt spray, and mold, and is a key component in ship power systems.

The structure of the SC(B) Series Marine Transformer mainly includes the following aspects:
Magnetic Circuit
The magnetic circuit consists of a core and coils. The core is composed of stacked materials such as silicon steel sheets or ferrite. Its function is to guide magnetic flux along a predetermined path, thereby converting electrical energy into magnetic energy and vice versa. The coils are divided into high-voltage and low-voltage coils. The high-voltage coil has more turns than the low-voltage coil. Its function is to convert input voltage into output voltage and control the transformation ratio. High and Low Voltage Windings:
The windings utilize a segmented cylindrical structure, with 100% oxygen-free copper conductors. The intersegments and interlayers are fully insulated with insulating material. The formed coils are placed in a heated mold and then cast in a specially formulated resin within a vacuum chamber. This vacuum process effectively removes air from the windings, ensuring the transformer's low partial discharge characteristics. Because the thermal expansion coefficients of the conductors and the casting resin are very similar, thermal stress differences caused by load changes are minimized, significantly enhancing the winding's crack resistance. Finally, the windings solidify into a fiberglass-like structure, providing excellent short-circuit and lightning surge resistance.

Special Design

CSCD marine transformers are specially designed with three-phase 600V to 400V conversion capabilities with a neutral conductor and 230V. The introduction of a neutral conductor helps improve the balance and stability of the power system and reduce the risk of electrical failures, which is particularly critical for shipboard power systems. Furthermore, the 230V conversion capability allows the transformer to adapt to the needs of various power equipment, enhancing the flexibility of the power system.

Safety and Environmental Protection
SC(B) Series Marine Transformer utilize dry-type insulation materials, effectively reducing fire risks. They are highly adaptable and can operate stably in a variety of environmental conditions. Because they lack oil, there are no fire, explosion, or pollution risks. Therefore, electrical codes and regulations do not require dry-type transformers to be located in a separate room.
Reliability and Ease of Maintenance
CSCD marine transformers offer easy maintenance, a simple structure, and high reliability. The new series, in particular, reduces losses and noise to new levels, making it possible to house the transformer and low-voltage panel in the same distribution room. The safe operation and service life of dry-type transformers depend largely on the safety and reliability of the transformer winding insulation.
Applicability and Flexibility
CSCD marine transformers are suitable for use in confined spaces and complex environments, such as ships and offshore drilling platforms. Their design prioritizes efficiency, stability, and safety during shipboard operation, ensuring stable operation in marine environments. Harsh Environment Resistance
CSCD marine transformers are designed to withstand altitudes up to 1000m, ambient air temperatures up to +45°C, and relative humidity up to 95%. They are also resistant to condensation, oil mist, mold, and the vibration, impact, sway, and pitch experienced during normal ship operations. Implementation Standards
IEC60076-1, IEC60076-2, IEC60076-3, IEC60076-5, IEC60076-11, etc.

1. Model: CSCD, CSCBD
2. Rated Capacity: 3-1000 kVA
3. Primary Voltage: 0.23, 0.4, 0.45, 0.69 kV
4. Secondary Voltage: 0.025, 0.04, 0.023, 0.4, 0.45 kV
5. Frequency: 50 Hz or 60 Hz
6. Insulation Class: F or H
7. Cooling Method: AN/AF
8. Connection Group: Dyn11, Yyn0 9. Protection Level: IP22, IP23, IP44, IP55, or as required by the user.

1. Altitude: ≤1000m
2. Ambient Temperature:
Maximum: +45°C
Minimum: -25°C
Maximum Monthly Average Temperature: +30°C
3. Usage: Inside a ship's cabin
4. Relative Humidity: ≤95%

Marine power distribution systems up to 1kV.