Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How To increase Knowledge Of boliler regarding To Only Electrical Field..

234

What is the difference between PLC and Embeded system

175

How capacitor connect in 3 phase supply???

L&T,

1 426




PAC and simple Ac different

137

Why High voltage are generate noise ?

133

what is KA rating and how can we choose switchgears on applications

156

Why can't we parallel Voltage transformer secondary circuits?

141

Why can't we parallel the secondary circuits of two voltage transformers?

168




we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?

IGC,

199

If one ct is reversely connected in Y system what will effect in kwh and kvarh meter?

1 316

Explain about how is it working Earth fault'relay and wahts the resistance value of earth bed

194

Earth has zero potential then what would be the neutral potential ?

JLL,

147

What is the formula for selecting the cabels according to load? How to calculate what sq.mm cabel to be used?

171

How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?

Vodafone,

145

What is the maximum and minimum rating of UPS?

Indiabulls,

156


Post New Electrical Engineering Questions






Un-Answered Questions { Electrical Engineering }

Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

1095


in my working site. momentary jerck in electrical supply ocurred frequently which cause of multiple losses in our electrical equipements. how can we protect our electrical machines and equipements in this situation.

1460


in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.

696


How many kw will suply from one db

246


Did RMU have ct and pt ?

82






explain all the classes with example

668


ratings of lightning arrester

823


In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?

420


The loads are connected with phase and ground then why current flow as the loads ?

741


what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

856


In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?

631


use of choke in APFC panels

3334


in parallel operation of power transformer why the distance between power transformer and capacitor bank feeder is necessary to know

628


If you have an earth with pilecap then your resistance is really low. why and how?

691


what's prime importance of protection in electrical system.if protection system don't work properly what can happen in electrical system?

677