SC(B9), SC(B)10Resin casting dry type power transformer product by our company is a new generation of product in low loss and noise. base on the FRVT processing technology imported from ABB Co. In 90's, advanced technology of vacuum resin casting and L. V. Foiled winding as well as the updated equipment such as GEORG cutting line, Stoll berg winding machine and HUBR vacuum resin casting equipment all imported from Germany, and foiled winding machine imported from Italy, product performance is up to IEC726, GB6450, GB/T10228-1997 Standard.
The product owns its advantage such as low loss and noise, small size, less weight, moisture-proof, anti-dirty, crack-proof, withstanding impulse, flameproof, overload capability, smaller partial discharge (less than 10 PC).
It has reasonable structure and convenient operation& maintenance. When the BWK series temperature controlling system is provided for dry type transformer, it has more functions including alarming to faults and abnormal temperature, automatic tripping and automatic starting (stopping) fans to ensure its safe operation.
It is applicable to transmission and distribution system, hotel, restaurant, high building, commercial center, stadium, petrochemical factory, metro, station, airport, drilling form in the sea and so on, particular to the places of load center, or the places where require fireproofing specially.
Technical parameter
Specification:
Voltage class: 6 -35KV
Capacity range: 30 - 10000KVA
Voltage adjustment mode: No-load tap changer or on-load tap changer (fitted with vacuum or on-load tap changer )
Tapping range: +/- 2x2.5% +/- 4x2.5% (or others)
Frequency: 50Hz or 60Hz
Phase number: Three phase
Vector group: Yyn0; Dyn11; Yd11 or others
Short-circuit impedance: Standard impedance ( requirement by customer)
Working condition: Relative humidity 100%, ambient temperature no more than 40 degrees centigrade
Max. Temperature rise: 100K
Cooling mode: Natural air cooling (AN) or fan cooling (AF)
Protection grade: IP00; IP20(indoor ); IP23(outdoor)
Insulation grade: F grade
Insulation level:
10KV Power frequency withstanding voltage 35KV, impulse withstanding voltage 75KV;
20KV Power frequency withstanding voltage 50KV, impulse withstanding voltage 125KV;
35KV Power frequency withstanding voltage 70KV, impulse withstanding voltage 170KV;
*Other kinds of power transformer or requires please contact us to get more information.
