SCB-RL series three-dimensional triangular wound core dry-type transformer

1. Product Introduction:

This product incorporates the technology of three-dimensional wound core transformers invented by American experts in 1946, combined with the polygonal cross-section core technology developed by domestic experts, and is produced using our company's winding and tooling equipment. The main performance indicators of the product exceed national standards. It is suitable for environments with high fire protection requirements and is applicable to high-rise residential buildings, airports, stations, docks, subways, hospitals, power plants, metallurgical industries, shopping centers, densely populated residential areas, as well as petrochemical plants, nuclear power plants, and nuclear submarines.

2. Standards:

2.1 IEC60076-11 Dry-type power transformers

2.2 GB/T1094.1 Power transformers

2.3 GB/T1094.11 Dry-type power transformers

2.4 GB/T32825 Technical parameters and requirements for three-phase dry-type three-dimensional wound core distribution transformers

2.5 JB/T10088 Sound level of 6kV to 500kV power transformers

2.6 GB20052-2020 Energy efficiency limits and energy efficiency grades for power transformers

3. Model and Meaning:

4. Performance Features:

4.1 In addition to the conventional advantages of dry-type transformers such as safety and strong overload capacity, it also features environmental protection, low no-load loss, low excitation current, low noise, moisture resistance, corrosion resistance, strong short-circuit withstand capability, good impulse voltage withstand performance, compact size, light weight, and attractive appearance.

4.2 Integrates winding and casting into one, making full use of limited space, with a simple structure, and easy mold installation and removal.

4.3 The new high-tech transformer product, resin-cast three-dimensional wound core dry-type transformer, offers an innovative transformer value-added solution that is energy-saving, environmentally friendly, moisture-proof, corrosion-resistant, with strong short-circuit withstand capability and strong impulse voltage withstand performance.

4.4 Equipped with remote monitoring functions to grasp the equipment operating status in real time.

5. Structural Features:

5.1 Uses three-dimensional wound core as the core component; after assembly and annealing, the three-phase magnetic circuit is completely symmetrical, magnetic reluctance is greatly reduced, and excitation current and no-load loss are significantly lowered.

5.2 The upper and lower clamps are integral, protecting the entire core from external forces during manufacturing, transportation, and installation, and effectively pressing and supporting the winding, enhancing the transformer's ability to resist axial electrodynamic forces during sudden short circuits.

5.3 The clamp made of shaped steel structure effectively suppresses noise oscillation within the clamp, keeping the transformer's noise at an ideal level.

5.4 The winding is encapsulated with epoxy resin, forming a complete rigid body with the winding conductor and resin insulation layer, providing good mechanical strength and strong short-circuit withstand capability. The epoxy resin has high dielectric strength, and since the entire winding conductor is encapsulated by the solid insulation layer of epoxy resin, moisture penetration is difficult, and it completely blocks the conductor from damage by various harmful gases and corrosive chemical components, resulting in excellent moisture and pollution resistance.