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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is different bewteen low or high impedance busbar protection scheme

4125

Transformer Secondary maximum current (max. load)

3 7567

why the generator will take 8 to 12 hours to start after it got interrupted due to technical problems in case of power plants.

NTPC,

1 4233

Can we put 3 layers of cable tray while installing tray

NTPC, Siemens,

2400

pre arcing time of ehv breaker

2137

use of PIR in ehv breaker

2168

how ct burden,magnetising current,ratio and knee point voltage are related & derived

Dalkia, SCT,

2206

when current lags behind voltage how does it affect the circuit.In other words what is the significance of lagging current?

3 7364

how much Watt can we fully load a transformer

4 8085

What is the function of Igniter in 250 watt HPMV street light?

1 8731

how much amps will get from a 360/11kv line

2 4594

what is the MNA in case of d.c. machin? whaty is the importance of it? hoe it affect the brush position?

TATA,

2 7334

I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

2454

what is the meaning of stub protection?

1 5754

whatis knee point ?

L&T, Siemens,

5 10850


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

WRITEDOWN FEW RELY CODES

2281


The ripple frequency in output of fullwave bridge rectifier is a. Half the input b. Twice the input c. Same as input

2270


what will be project cost for 100 kv transformer connection under oyt scheme.

2939


What is advantages of VSCF wind electrical system?

2334


Define damping ratio.

1245


for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations

2090


hi i have applied for lic of india south cenrtal zonal ,hyd. i didnt get hall ticket till now.let me know how can i get form internet

2007


What is the relationship between voltage,current & frequency?

1787


A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is

1286


How to discuss the phase shift of transformer considering open delta?

1471


How to calculate no of EARTH PIT? Describe the formula as per IS standard?

2183


1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)

2303


percetans

2195


What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )

2075


Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.

1676