11kv/800kVA Three Phase Oil Immersed Power Transformer

Place of Origin wenzhou
Brand Name Qiupu
Certification GB17467
Model Number SM-13/800/11/0.4
Minimum Order Quantity Negotiable
Price Negotiable
Delivery Time 7 days
Payment Terms L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability 5000

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Product Details
Altitude 1000m Ambient Temperature -25℃~+40℃
Rated Current 630A/1250A Relative Temperature The Daily Average Is Not More Than 95%, And The Monthly Average Is Not More Than 90%
Indoor/out Door Outdoor
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800kVA Oil Immersed Power transformer


Three Phase Oil Immersed Power transformer


11kv Three Phase Transformer

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Product Description

11kv/800kVA Three-Phase Oil-Immersed Power transformer


When electric power workers choose test transformers to conduct step-up tests, they often encounter the question of whether to choose oil-immersed type or inflatable type or dry type. Then the question arises, why is the same test transformer, there's oil, air and dry? This article answers your questions. Because of the differences in the internal structure of the test transformers, they were divided into these three types of test transformers. Their functions were all the same, but the internal insulation materials were just different, which resulted in the advantages and disadvantages of each of the three types of test transformers.
The oil-immersed test transformer, as its name implies, is an internal insulating oil used for ARC extinguishing, with many advantages, such as low cost, fast voltage boost, high voltage resistance, easy and cheap maintenance, etc. , if it is damaged in the course of use, it can be taken to replace the copper core or the way to replace the insulation oil, so the cost of procurement and use are relatively low, but because the interior is loaded with insulation oil, therefore, the equipment is relatively heavy, not conducive to moving to outdoor use, and there are disadvantages such as oil pollution. Inflatable test transformer, the internal use of SF6 gas for insulation arc, because it is inflatable, it has small size, light weight, clean and oil-free advantages, but if the internal gas escape, very difficult to repair, can only return to the factory to deal with the use of more trouble, and the cost of the equipment is relatively high, causing the price is naturally rising. Dry-type test transformer, using the internal iron core plus epoxy casting technology manufacturing, one molding, there is no gas and do not use insulating oil, low cost, cheap, but large size, weight, at the same time, because it is one casting, if the internal damage, almost impossible to repair, the use of the process, the need for users to be extra careful, so the general small projects are more like to use the equipment. As a whole, oil-immersed, gas-filled and dry-type transformers have their own advantages and disadvantages, to meet the different needs of different power workers .

Item Technical data
Rated voltage (KV) 3.6 7.2 12 24 40.5
Rated frequency(Hz) 50
Insulator(capacity) insulating Frequency withstand voltage 5 min (KV) 25 32 42 68 100
Frequency withstand voltage 1 min (V) 2000
Lighting impulse withstand voltage (KV) 40 60 75 125 185
Local discharge (pc) ≤10
Dispute bend (N) ≥1000


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