35 ~ 500kV level oil bath power transformer

Model significance
Take from the pair, three-phase, has carries adjusts the pressure, the force oil circulation, the forced-air cooling, capacity 120000kVA, the high tension system nominal voltage 220kV transformer as the example, its model is:
OSFPSZ10 1.20000/22 billion
Among: O from pair (when ordinary transformer abbreviates); 1st S three-phase (single-phase when is D); F forced-air cooling (when natural cooling abbreviates); P force oil circulation (when natural oil circulation abbreviates); Second S three windings (when double winding abbreviates); Z has carries the accent to press (does not have excitation accent to press time abbreviates); 10 represents the loss level the design serial number (in peculiar circumstance to abbreviate); 120,000 capacities (unit kVA); 220 high-tension sides systems nominal voltage (unit kV).
Carries out the standard
GB 1094.1 1,996; GB 1094.2 1,996; GB 1094.3 2,003; GB 1094.5 2,003; GB/T 1094.10 2,003; GB/T 6,451 1,999.
Equivalent uses the IEC 60,076 standards.
Regular service condition
(1) altitude above sea level: <= 1000m;
(2) ambient temperature
Highest temperature: +40 ;
Maximum monthly mean temperature: +30 ;
Maximum yearly average temperature: +20 ;
Lowest temperature: - 25 (lowest application ambient temperature -40 ).
(3) power source request: The approximate sine wave, three-phase is approximately symmetrical.
(4) installs the place: The indoors or the outdoors, the environment does not have the obvious contamination.
Note: The transformer uses which under the special condition must when the product ordering explained.
Product characteristic:
(1) structure reasonable: Using the modern computation technology to the transformer electricity, magnetism, the strength, the hot characteristic carries on the analysis, carries on the construction blueprint design in this foundation, causes a product structure more reasonable consummation.
(2) performance advanced: The product performance besides satisfies the national standard correlation stipulation, but also may carry on the special design according to the user request, the shelf depreciation level obviously is lower than the country standing operating procedure value.
(3) is safe reliably: In to in the transformer electricity, magnetism, the strength, the thermal analysis foundation carries on the winding insulation structure, the ampere turn distribution and the cooling system design, enhanced the transformer withstanding overvoltage and the short-circuit current impact function ability, does not have sorrow of the partial heat.
(4) optimal module: Selects the domestic product or the import high quality module according to the user request, further enhanced the product movement reliability.
(5) the user does not have sorrow: The contour is artistic, does not have the leakage, exempts hangs the heart, exempts the maintenance.
Structure and performance synopsis
(1) iron core: In the tall standard which imports from Germany (GEORG) on-line cuts, uses Gao Daoci the high quality silicon steel plate, the multistage entire slanting joint step-by-steps joining, does not have the latitude belt to bind the structure, satisfies the transformer to have the low idling loss and the low noise level request. Through Canada puts the vibration isolation pad between the body and the fuel tank, effectively reduced the iron core to vibrate to the fuel tank transmission.
(2) winding: Selects an electronic resistivity lower high quality oxygen-free copper, in has advanced axial, the spoke to contracts the installment on the horizontal-type winding machine and the large-scale numerical control vertical winding machine circles the system. Between the parallel wire carries on the reasonable conversion, when the necessity uses the magnetic shield to carry on the guidance to the leakage flux, effectively reduced the transformer load loss. The reasonable design insulation structure, enhances the transformer to endure the overvoltage function the ability; The optimized winding ampere turn distribution, increases the winding spoke and axial contracts to the strut, carries on pre- densification processing to the coil oil lead cushion, uses the winding overall coverall and the constant pressure is dry and so on the craft, enhanced the transformer anti- to short-circuit greatly the ability.
(3) fuel tank: Uses the bell glass type or the barrel type structure, the 63000kVA following uses the contour artistic big ripple fuel tank. Uses the carbon dioxide protection to weld the craft, the optimal packing material and to the cushion spacing trench machine, unifies the strict leak detection experiment procedure, guarantees the transformer not to have the leakage. Uses the new piece type radiator or the wind chiller, improved the transformer outward appearance quality greatly.
(4) uses the cold-press equipment realization lead wire the cold-press connection, enhanced the body clean degree; Carries on the vacuum treated and the vacuum oil injection to the transformer, effectively reduced the transformer shelf depreciation level, enhanced the transformer movement reliability.
(5) between the body and the fuel tank uses "six to the localization" the structure, guaranteed the transformer has the strong anti- transportation impact ability and the anti- earthquake ability.
(6) surface treatment and coating: Carries on to the fuel tank surface spurts the pill and so on fine processing, carries on the acid pickling phosphorization and so on 7 crafts processing, and spurts spreads the special anti-fouling paint, guaranteed the coating does not fall off, the steel structure does not have rusts away.

35 ~ 500kV level oil bath power transformer