Product Description

Our factory can produce 500kV and below voltage, capacity 1000MVA and the following series of oil-immersed power transformers.
Digestion of advanced technology at home and abroad, combined with advanced technology at home and abroad and my company's many years of experience in the production of power transformers,
Through optimization and innovation, we have successfully produced a series of power transformers with low noise, low loss, low partial discharge and high short-circuit resistance,
Fully meet and better than the national standards and the International Electrotechnical Commission recommended standards.

transformer:
bell-shaped tank and wavy shell.; Increase the strength of the fuel tank and make the appearance beautiful;
D-yoke core, 45 corner joints;
The core and oil box are well fixed and well protected when moving;
Reasonable packaging method, in the internal and external structure of the coil; use brackets; cardboard barrels
Added the ability of anti-shortcuts between the coils;
Advanced assembly methods, such as cold pressing and welding techniques, with sleeve coils, paper mounting
Barrel production.

technical parameters:
SFZ-40000/33 power transformer
Name: Three-phase winding OLTC double immersion air-cooled power transformer
Type: SFZ-40000/33
Rated voltage: 33/6.9kv
Rated power: 35000/40000kVA
Rated voltage ratio: 33±3 × 2.5%/6.9kV
Rating Currency: 700/3347A
Stage: Three stages
Rated frequency: 50Hz
Connection Symbol: Dyn11
Tap changer: on-load tap changer
Impedance voltage%: 13+0.8%
Cooling method: ONAN/ONAF
Winding insulation level
Lightning impulse withstand voltage (Kv, peak value) 1 min frequency pressure (kv, imaginary value)

full wave
The latest wave

High pressure side: 170 185 75
Low pressure side: 75 85 35
Low voltage neutral point: 75 35

Insulation class a
Transformer winding with field strength not exceeding 2 Kv / mm
Transformer losses (below 75), no-load current and efficiency
No-load loss: 21 kW
Load loss: 198 Kw
No-load current: 0.5%
Radio Frequency Interference and Corona
The working voltage is the maximum, there is no visible corona on the outgoing line in the evening on sunny outdoor days, and the radio interference voltage does not exceed 2500
UV.

the best service we offer you
1. Pre-sales services
A. Develop technical solutions
B. Send quotations, technical data sheets and drawings
C. Prepare transmission plans, test plans, and shipment plans.
2. In sales service
A. Supervise the manufacturing progress in full accordance with the plan
B. Send photos to customers during each manufacturing process (hold points)
C. Inform the customer one week before the test.
3. After-sales service
A. Installation and commissioning, training of workers
B. Quick response within 12 hours at any time
C. The normal guarantee period of 12 months is provided.

Thank you for choosing VILLE as your reliable partner, please believe that we will create a better future!