Class 330kV Oil Immersed Transformer
330kV transformer is a three-phase one-one ultra-high voltage transformer, including power transformer and autotransformer. The autotransformer can also use constant magnet flux voltage regulation and variable magnet flux voltage regulation.
Product Details：Class 330kV Oil Immersed Transformer
The transformer through the ingenious design of the oil circuit, the use of non-guided cooling technology, to avoid the risk of the oil flow inside the transformer under the premise of ensuring the oil surface and winding low temperature rise. The products are designed according to the IEC international standards and the current national standards.
PARAMETER：
Model | SFPZ11-240000/330 | OSFSZ-150000/330 | OSFSZ-250000/330 |
Capacitance ratio (MVA) | 240/240/72 | 150/150/50 | 250/250/20 |
Ratio-voltage (kV) | 363±8×1.25%/35/10.5 | 330(-12+4)×1.25%/132/34.5 | 330±8×1.25%/220/33 |
voltage regulation mode | Constant magnetic flux | Variable magnetic flux | Constant magnetic flux |
Open circuit losses (kW) | 100.52 | 44.66 | 62.62 |
Load losses (kW) | 670.2 | 461.32 | 350.67 |
Impedance voltage (%) | 14.57 (high-middle) | 10.21 (high-middle) | 8.73 (High-Medium) |
Oil oil temperature rise (K) | 23.6 | 40.6 | 36.4 |
Maximum Winding temperature rise (K) | 53.9 | 53.8 | 45.3 |
No-load noise (dB (A)) | 72 | 63 | 71 |
Measured local level (pC) | 70 | 80 | 75 |
1. Feature:
（1）Low noise, reduce the noise pollution to the environment;
（2）Low local release, to ensure the stable and reliable operation of the transformer;
（3）Low temperature rise, relatively, strong overload capacity;
（4）Low loss, energy structure optimization;
（5）No leakage, high transformer sealing performance;
（6）Maintenance-free to reduce customer maintenance costs;
（7）Clever oil design, to avoid the risk of oil flow inside the transformer.
（8）The corrugated oil tank of the oil tank is made of high-quality cold-rolled steel plate in the special production line. After the surface is treated with oil removal, rust removal and phosphating, it is coated with three-proof (rainproof, moisture-proof, salt spray proof), which can improve the operation reliability and durability and reduce the maintenance cost. The corrugated plate can compensate for the oil volume change caused by the temperature change.
2. Architectural Advantages
（1）A comprehensive quality assurance system: Strictly control product quality in accordance with the ISO19001 quality system.
（2）The SSZ11-24000/220 transformer has passed the national full set type test and sudden short circuit test.
（3）According to user needs, products with other voltage combinations, loss values, connection groups, and capacities listed in the table can be provided.
3. Application Case
(1) CGN Gansu Minqin Wind Power Plant 400MW project
(2) The IEL 330kV Power station project in Nigeria
(3) The ZESCO 330kV Power station project in Zambia
(4) The Estonian 330kV project
CASES
Own Factory
Employees at Working
Transportation
SERVICE
Service attitude
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Service Purpose
Smile: Refers to a moderate smile. Company employees need to have a caring heart towards customers in order to truly smile. A smile can reflect a grateful heart and spiritual tolerance, while a smile can express openness, health, and thoughtfulness.
FAQ：
Q:What is the company's development plan for the next five years?
A:Product innovation: Increase R&D investment and launch more competitive new products.
Social responsibility: Actively participate in public welfare undertakings, give back to society, and establish a good corporate image.
Q:Why should you buy from us not from other suppliers?
A:As an enterprise specializing in transformer production, we have high quality, fast delivery, guarantee after-sales service and factory price. What's more, we have ISO9001-2008, OHSAS 18001:2007, ISO4001:2004L ,UL ,CE certificates and IEC, ANSI, KEMA, GOST standard.
Q:What is the current ranking and position of the company in the industry?
A:At present, we are in the top 10 or market leadership position in the industry. We have won widespread recognition from customers with our high-quality products and services.
