Is it necessary to install Lighting Arrester on both side side (i.e HT and LT) of Transformer in a transmission substation? if yes Why on both side?
1 31031. which type of transformer connection is preferred in case of power supply transformers? (A) Star/Star (B) Delta/Delta (C) Star/Delta (D) Zig Zag/Star 2. In a power transformer usuall which winding is closer to the core? (A) Primary winding (B) Secondary winding (C) Low Voltage winding (D) High Voltage winding 3. The power factor of a purely inductive load is (A) Zero (B) Lagging (C) Leading (D) Unity.
9 10415Post New Electrical Engineering Questions
take 100kva DTR( delta/wye ), what ll happen if we connect 11kv to LT side instead of connecting to HT side? will the DTR behave as a step up transformer or something else????
why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?
what are the maximum available current, voltage ratings and switching speeds of the power electronic devices thyristor, power mosfet, igbt, and mct?
what is the need of starter in tube light and what type of starter is used in that?
-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.
what is sevice settings for mccb?How can be it setted?
Difference between field rheostat and armature rheostat.
what is star delta starter? how it works? give its control and power diagram.
What is meant by reset level of the relay?
What will happen if we on 200kvr capacitor bank(11kv in bus)If there is low load on transformer (1.5 mva 33/11 kv)
what is the meaning of 0.5ohm Resistance
In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.
how many load we can take for lighting
Why we are using Isolation Power Transformer inplace of commercial power transformer? What's the difference between them?
DC transmission
