What are different types of Insulations used in Transformer? There are two types of Insulations used in Transformers: 1) Oil 2) Solid Insulation What are the Functions of Transformer Oil ? Transformer Oil has mainly three Functions: 1) Insulation 2) Cooling 3) Also, there is contamination caused by Chemical Interactions with Windings and other…
First of all we will find out what is polarity and then we will see why it is so important in CT. What is Polarity ? It is the Polarity of Voltage present between High Voltage Terminal and the Low Voltage Terminal. It can also be referred as, the direction of the current flow.In the…
Bucholz Relay provides Mechanical Protection for Transformer. What is a Buchholz Relay? What is the Working Principle of Buchholz Relay? 1.Accumulation Of Gases: Whenever a fault occurs inside the transformer, such as Arcing, Partial Discharge, Insulation failure of turns, breakdown of core or excess core heating, the fault is accompanied by production of excess heat….
[et_pb_section fb_built=”1″ _builder_version=”3.22.3″ background_color=”rgba(255,255,255,0.76)” custom_margin=”0px|||0px” custom_padding=”0|0|0|0|false|false”][et_pb_row custom_padding=”0|0px|20.1389px|0px|false|false” custom_margin=”-36px|auto||auto||” _builder_version=”3.22.3″][et_pb_column type=”4_4″ _builder_version=”3.19″][et_pb_text _builder_version=”3.19.5″ text_font=”Lato||||||||” text_line_height=”1.3em” min_height=”71px” custom_padding=”2px|20px|20px|20px||” inline_fonts=”Arial,Georgia,Times New Roman”] No, we cannot open the Secondary Circuit of a Live CT, because it will make the CT to Explode. Here one question my arise that both CT and Power Transformer are Transformers but Open Circuiting CT…
Tan Delta Tests are carried out for Transformer Bushing and for the Transformer Winding. Transformer Bushing Tan Delta Test is similar to the CT Tan Delta Test and lnk to the Artivle on CT Tan Delta Test is : .In this Article we are going to discuss in detail about Transformer Winding Tan Delta…
Current Transformer, also called as CT, is an essential equipment in the Power System, mainly in Transmission & Distribution Systems. What is Current Transformer? It is an Instrument Transformer, which replicates the Primary Current, but at much lower values, which can be measured by Relays/Meters. It is a Step-up type Transformer and so the…
[et_pb_section fb_built=”1″ _builder_version=”3.17.6″ background_color=”rgba(255,255,255,0.76)” custom_margin=”0px|||0px” custom_padding=”0|0|0|0|false|false”][et_pb_row custom_padding=”0|0px|20.1389px|0px|false|false” _builder_version=”3.19″][et_pb_column type=”4_4″ _builder_version=”3.19″ parallax=”off” parallax_method=”on”][et_pb_text _builder_version=”3.19.4″ text_font=”Lato||||||||” text_line_height=”1.3em” custom_padding=”20px|20px|20px|20px” inline_fonts=”Arial,Georgia,Times New Roman”]There are two Tripping Circuits in the Breaker, Called a Trip Circuit 1 and Trip Circuit 2. Both this Tripping Circuits should have different DC Supply and different Tripping. Tripping Circuit of VCB can be divided into…
Aim/Purpose of the IR Test: To ensure that, each winding of the Current Transformer, has sufficient Insulation Resistance with respect to Earth (CT Body) and between the two Secondary Cores. Principle: Insulation Resistance is the Ratio of the Applied Voltage (DC) to the total Leakage Current. Leakage current should be as small as possible ,…
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