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Outdoor oil cooled Current/ Potential Transformer

Outdoor oil cooled Current/ Potential Transformer
Outdoor oil cooled Current/ Potential Transformer
Product Code : oocct
Product Description
Outdoor oil cooled instrument transformers are paper insulated oil impregnated type insulation & Winding is done by automatic machines in extremely controlled dust free environment. Outdoor oil cooled instrument transformers are hermetically sealed type in construction. The whole CT/PT unit is dried in an air heating oven under very high vacuum & strictly controlled conditions. Measurement of amount of moisture taken out from the CTs/PTs is done at regular intervals during the vacuum drying process. After the process is over the CT/PTs are filled with filtered, de-aerated EHV grade transformer oil under vacuum. The oil filtration plant, the processed oil storage tank & the vacuum drying chambers are all interfaced together to ensure that the CTs/PTs are filled with oil untouched by human hand. To seal the CT/PTs the space left for expansion on the top is filled with dry & pure -nitrogen gas through a non -returnable valve at pre determined pressure.
Technical Details

The current transformer used for Metering, protection & special protection (PS CLASS) purposes. Our range of M.V. Outdoor Current transformer/ PT includes following:

System voltage: 3.3/6.6/11//22/33/110 KV Outdoor Current / voltage Transformer

We provide various types of Outdoor Oil-Cooled Current / voltage Transformers as per relevant Standards (IS/IEC...) as follows:

Single Phase Oil-Cooled Current/ voltage Transformer
Three Phase Oil-Coold Current / voltageTransformer

Technical Details For CT/PT:

For PT

Metering Accuracy class: 0.2, 0.5,1 For Protection: 3P, 6P, 5PR

For CT

For metering Accuracy class: 0.2s, 0.5s, 0.2, 0.5,1. .
For Protection: 5p, 10p... ALF (5, 10, 20...)
For Special protection (Class PS): any knee point voltage Imag @ (vk), vk/2, vk/4 Insulation class as per IS (A, E&B)

Application : Metering, Protection, Ps
Construction : Indoor/Outdoor
System Voltage : 3.3 KV To 110 KV
Ring Type / Bar Type / Wound

Primary Type Multi Core & ratio CT's

Type (Outdoor) : Live and Dead Tank
Primary Rating : Upto 5000 A
Secondary Rating : 5A or 1A (others on request)
Short time Current ft : Up to 40 KA for 1 Sec
Its Duration : (others on request)
Reference Standard : IS-2705/I.E.C. 60044.1


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