Answer / srirama

due to airgap between the lines

Answer / raja

in practicaly if the pin insulator losses its insulation
also it will happen
loose conection between two pin insulator also it happens
and due corona effect also it happens

Answer / sunil.dutta

all answers are wrong. Please understand question carefully.

Humming noise in tr. lines is due to charging and
discharging of lines under very high voltage.

Answer / sudharsan

Due to the production of faint yellowish gas around the
conductor ...(due to ionisation of gas ) called corona.

Answer / guest

because of hysteresis losses

Answer / durgaprasad

Because of transfer the high voltage & current

What is effect of low pf on HT supply.

6 Answers  

what is meant by neutral Ct of a transformer and how it connected in transformer

4 Answers  

AP Transco Assistant Engineer (Electrical) Model Question papers

2 Answers   APTransco, HCL, Tranco, UPSC, VMware,

How does HT work & Voltage required?

0 Answers   Adhunik,

Natural frequency in the control system represents nature of a. Transient response b. Oscillations c. Overshoot d. Speed of responce

1 Answers  

1 Amp = kva ? 1 Amp =KW ?

3 Answers   Marriott,

what is derating?, why it is neccesary, it is same for all means for drives, motors,and cables.

1 Answers  

How do you find HT and LT sides of a distribution transformer only by looking at it from outside?

1 Answers   Nespak,

What is “pu” in electrical engineering?

0 Answers  

Why we make earth connection with Transformer Body and What will be the minimum size of copper wire as per code with respect to KVA rating of Transformer?

0 Answers  

what is the earthing condition between earth & neutral.

6 Answers   ABB,

How to calculate the current in DG What are the type of power pls explain with related formulas

1 Answers   Corona Enterprises, Sodexo,