Resin Insulated Dry Type Distribution Transformer (with OCTC)
1.Scope of application
Resin insulated dry-type distribution transformer is a type of electrical transformer that does not use any liquid coolant, such as oil, for heat dissipation. Instead, it relies on air natural convection or forced air cooling for its temperature regulation. The rated capacity ranges from 30KVA to 3150KVA, and is suitable for power systems with AC 50Hz/60Hz and working voltage of 6KV~38.5KV and below. They are used as substation equipment in power transmission and distribution fields, infrastructure fields, public transportation, buildings and residences, industrial fields, information technology fields and new energy fields.
2. Product standards
GB/T1094.1 GB/T1094.11 GB/T1094.12 GB/T10228 JB/T10088
GB20052 GB/T7354 JB/T3837 GB/T4208 IEC60076-11
3. Operation environment
1) Altitude: ≤1000 meters.
2) Ambient temperature: Maximum +45oC, Minimum -30oC.
3) Relative humidity: ≤90% (+25 oC).
4) Max Ground ramp degree: ≤3°.
5) Seismic level: ≤0.3m/s2 at horizontal direction and ≤0.15m/s2 at vertical direction.
6) Installation environment: No obvious and heavy pollution, no explosive and corrosive gas and dust, with good air ventilation and no severe vibration and shock.
7) If the application environment is different from the above standard conditions, please contact for customized designs.
4. Product advantages
1) Safe flame retardant, fireproof, explosion-proof, pollution-free, can be directly installed in the load center.
2) Low loss, maintenance-free, low comprehensive operating cost, obvious energy-saving effect.
3) Good moisture-proof performance, can operate normally at 100% humidity, and can be put into operation without pre-drying after decommissioning.
4) Partial discharge capacity< 5Pc, low noise, strong heat dissipation ability.
5) Strong load capacity, low product temperature rise, strong heat dissipation capacity, 140% load when forced air cooling to meet temporary emergency needs
6) Foil coils are insulated with DMD prepreg cloth to improve short-circuit resistance and service life.
