6.6kV fully sealed oil immersed power transformer shows the advantages of low loss, low noise and high efficiency, which achieves good energy saving effect and reduces pollution. Compared with the traditional oil immersed transformer, fully sealed transformer cancels the oil conservator. The change of oil volume is automatically adjusted and compensated by the elasticity of the corrugated sheet of the corrugated oil tank. The transformer is isolated from the air to prevent and slow down the deterioration of the oil and the aging of the insulation, thus enhance the operation reliability. Normal operation is maintenance free. 1. Standards: GB, IEC, GOST, EN, NF, ANSI/IEEE (customizable according to customer standards) 2. Certification: ISO、CE、IEC、SABS、COC、CSA、UL 3. Efficiency: The efficiency of an 6.6kV three-phase oil immersed transformer can exceed 99%, which can meet the European 2015/2014/548/EC ecodesign Tier 2 energy efficiency regulations. 4. Maintenance free: IP65 protection level, dustproof and moisture-proof, maintenance free, designed for a lifespan of over 25 years. 5. Environmental protection and sustainable development: FR3 vegetable oil can be selected. 6. Overload capacity: Copper coil 6.6kv transformer allows short-term overload to 150% of rated capacity for no more than 2 hours, but requires monitoring of oil temperature (≤ 95 ℃).
- Input voltage: 11KV/6.6kv 33Kv/6.6kv
- Output voltage: 6.6KV
- Capacity: 50-5000 KVA
- Frequency: 50HZ/60HZ
- Remark: voltage, capacity, frequency, connection group and loss can be customized according to customer requirements
The transformer core is made of imported high-quality cold-rolled silicon steel sheet, which greatly reduces no-load loss and no-load current. The core is tightly bound to ensure the compactness and reduce noise.
The high and low voltage windings are made of oxygen-free copper. The low voltage winding of 500KVA and below is of double-layer cylinder structure, of 630kVA and above adopt double helix or four helix structure. High-voltage winding adopts multi-layer cylinder structure.
Dyn11 is used in the transformer connection group to reduce the influence of harmonics on the power grid and improve the quality of power supply.
The transformer is a fully sealed structure, with three coats of primer and one coat of finish paint applied on the inner and outer surfaces. The product is salt fog proof, moisture proof and fungus-proofing, beautiful, durable and reliable
The measured noise value is lower than the standard and maintenance free under normal operation.
- Input voltage: 11KV/6.6kv 33Kv/6.6kv
- Output voltage: 6.6KV
- Capacity: 50-5000 KVA
- Frequency: 50HZ/60HZ
- Remark: voltage, capacity, frequency, connection group and loss can be customized according to customer requirements
The altitude shall not exceed 1000m
Ambient temperature: - 10 ℃ ~ + 40 ℃
Ceiling Monthly Average temperature: + 30 ℃
Maximum annual average temperature: + 20 ℃
Daily temperature difference: 25 ℃
Seismic crack degree: 8 degrees
Relative humidity: 95% (+ 25 ℃)
-Stable foundation, horizontal installation, avoiding tilting;
-Reserve sufficient heat dissipation space (such as at least 1.5 meters away from the wall);
-Grounding resistance ≤ 4 Ω;
-Check the oil level, sealing, and cleanliness of the casing.
Clients need advise main parameters of the transformer like capacity, input voltage, output voltage and connection group in inquiry.
Other custom requirement.
As an enterprise specializing in transformer production for 20 years, 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 certificates and IEC, ANSI, KEMA, GOST standard.
Yes, each product comes with two year(Up to 5 years)warranty to ensure the correct use of the product by the customer.
11kV-220kV Oil-immersed Power Transformer, Dry-type Transformer, Unpacked H Grade Dry Transformer, Oil-immersed Distribution Transformer, Pad-mounted Transformer.
Yes! Our products can be customized. We have design and engineering teams, and we can customize products according to customers' drawings or requirements.
1 set.
It depends on the quantity of your order. It usually takes 20-45 days.
We always adhere to technology as our guiding principle, upholding the spirit of "dedication, professionalism, and focus," to provide meticulously crafted tools and serve millions of users worldwide.
We have established a professional R&D team to continuously optimize our products, save energy, and adopt new manufacturing processes to tailor high-performance, cost-effective equipment for our customers.
We have more than 20 years to produce different kinds of transformers.
The factory's 6S management system improves efficiency, ensures quality, and safeguards the quality of the products the company outputs.
As a high-tech enterprise integrating R&D, production and sales, we ensure product quality while maximizing cost advantages for our customers.
We have a strong supply chain and after-sale service.
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