SC(B)-RL resin insulated three-dimensional triangular wound core dry-type transformer
Overview
The resin insulated three-dimensional triangular wound core dry-type transformer adopts the core components of the three-dimensional triangular wound core. After assembly and annealing, the three-phase magnetic circuit is completely symmetrical, the magnetic resistance is greatly reduced, and the excitation current and no-load loss are significantly reduced. The upper and lower clamps are integral, which protects the entire iron core from external forces during manufacturing, transportation, and installation, and can effectively compress and support the coil, which improves the ability of the transformer to resist axial electromotive force in the event of a sudden short circuit. The clip of the profiled steel structure effectively suppresses the vibration of the noise in the clip and keeps the noise of the transformer in an ideal state. In the coil encapsulated by epoxy resin, the coil conductor and the resin insulation layer form a complete rigid body, which has good mechanical strength, strong ability to withstand short circuits, and high compressive strength of epoxy resin. In addition, because the entire coil conductor is ringed Encapsulated by the solid insulation layer of oxygen resin, it is not only difficult for moisture to penetrate, but also completely prevents the conductor from being damaged by various harmful gases and corrosive chemical components, so its moisture-proof and anti-fouling performance is particularly good.
In addition to the advantages of conventional dry-type transformer safety and strong overload capacity, the resin cast three-dimensional wound core dry-type transformer also has environmental protection, no-load loss, small excitation current, low noise, moisture-proof, anti-corrosion, strong short-circuit resistance, and resistance It has the characteristics of good impact overvoltage performance, small size, light weight and beautiful appearance.
The main performance indicators of the products are better than domestic standards. It is most suitable for high-rise residential buildings, airports, stations, docks, subways, hospitals, power plants, metallurgical industries, shopping malls, densely populated areas, petrochemicals, nuclear power plants, nuclear submarines and other places with high fire protection requirements.
Product Standards
GBAT10228-2015 GB1094.11-2007
Rated high voltage: 10 (10.5, 11, 6, 6.3, 6.6) kV
Rated low voltage: 0.4kV
Tap range: non-excitation voltage regulation (±5%, ±2x2.5%)
On-load voltage regulation: (±4x2.5%)
Connection group: Dyn11 or YynO
Insulation level: LI75AC35/AC5