Answer / debasis sahoo

During installation of Transformer on a Pole mounting structure, following checks should be made:
Ensure that the base channel of transformer is at height complying to IEC Standards:
a) Height of top of HV bushing from ground for pole mounted transformer should be 4.572 meters minimum (15 Ft)
b) Height of top of HV bushing from ground for plinth mounted transformer should be 2.75 meters minimum (8 Ft)

Ensure that base channel is horizontally leveled

Avoid jerky movement of the transformer while lifting it upwards during installation

During installation ensure that the HV bushings of the transformer are on the DO unit (or HG fuse unit) side of the structure

After installation of transformer, also check that other allied equipments such as AB switch, Horn Gap fuse units, DO Fuse sets, Lightening arrestor etc. are fitted at appropriate positions as per the applicable drawing issued by the utility.

Use PVC unarmoured cable (3 ½ core) of appropriate size and length for LV side. Ensure that the lugs are appropriately crimped at the ends.

what is the safety of VCB.

5 Answers   Nagarro, Roto Power, RotoPower,

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If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer

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What are the material used for resistor?

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0 Answers   Marriott,

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0 Answers   Kirloskar,

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When we give supply to a transformer 11 kv and we get 415v from it, so when we give supply to same transformer 415v on ht side what we get? and When we gives supply to any transformer to L.T. side 415v or 220v What supply is on H.T. side?

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what is the different betweem earthing and neutral?

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In power transformer YnD0 Vector Group is possible or not? if possible, what will be the vector diagram and what are the conditions?

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