voltage transformer
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Type description Pollution level Individual measuring and protective winding Cascade structure Voltage transformer It is outdoor, single phase and oil immersed inductive voltage transformer, which is used for metering and relay protection lECStandard: IEC 60044-2 (Inductive Voltage Transformer) National Standard: GB1207 (Voltage Transformer) GB311.1 {Insulation co-ordination for high voltage transmission and distribution equipment) Altitude; less than 1000m Environment pollution level: Ik UK IV System Rated Voltage: 66kV System Highest Voltage: 72.5kV System Rated frequency: 50Hz or 60Hz System neutral earthing method: Non-effectively earthed • It is cascade structure, which the primary winding has two grade windings surrounded on each limbs of one single phase two—limb core. The insulation consists of high voltage cable paper, phone paper and cardboard etc., Which will be immersed with transformer oil after desiccating under vacuum. It has advantages of stable and reliable performance of insulation, rich successful experience, a long life time • Perfect fluidity performance of transformer oil is good for heat dissipation, it also has self recover ability for the failure of partial discharge caused by air bubble and dust. • It has three secondary windings, which has individual measuring and protection winding. • Hermetically sealed stainless steel metallic bellows is installed on the top, which protect the transformer oil from moisture and extend the life time, also there is a oil level gauge on the bellows for observing the changing of oil volume. • There is a multi function oil drain valve on the base, which make it more convenient for sampling draining and refilling. • The secondary terminal board is made of epoxy casting, the seal performance is more reliable. • The base use DACRAL(Zinc/chormate coatings) for resistance to corrosion, which gives a high degree of corrosion resistance. Add: Meichi Industrial Zone.Yunlong town, Ningbo City, zhejiang Pronice, P.R.China HTTP://www.top-electric.com

Technical data Outline drawing Primary terminal dimensions © Earthing pads (diagona!) © tP30 Terminals outlet hole Add: Meichi Industrial Zone,Yun£ortg town, EYEngbo City, zhejiang Prunree, P,R.China HTTP;//www.top-electric.com