Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to calcute the cable size for both HT and LT please specify the formula for that Regards Chethan C

Bhel, Student,

748

What is the meaning of CT 40/5, 100/5 or in HT lines 100/1 ????????

Amex,

3 18348

how does the rotating m.m.f is produced in the 3-phase induction motor and how the poles are created in 3-phase induction motor ?

1475




What is fuction of NGT/NGR using in Generator.

9 33362

How many types are using in 220kv/400 kv swith yard

981

Can u tell me design of switch yard

NTPC,

877

How i can decide that HVDC line is best for transmission.

709

WHY FLEXI LINKS ARE USED INBETWEEN GENERATOR TERMINAL OUTPUT & BUS DUCT CONDUCTOR.

3 3145




why we r used APFC Panel in industrial area.when P.F. low then wat will be the effect in our system?

Piramal Healthcare, ABB, Zenith Engineering Corporation, Georgio Rocks,

10 30818

why we are used D.c. voltage in L.T.side or controling side.we can use UPS also ,in place d.c. voltage

ABB,

5 4679

why protection and metering CT's are always connected in star why not in delta?

Reliance,

5 8194

how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.

718

If any one's require of phoenix contact like( relay , termilnal block , surge protection device ) , product please contect me 09878206357 chetan verma

787

where this neutral connection goes after returning from the load(home ,factory,industries).Is it grounded at the transformer side or atthe generator side .If it is grounded then we also ground the earth connection.is there any problem with this.

IOCL,

1 992

why the difference arise between HT reading & LT reading (submeters fixed in complexes, apartments etc)if the power factos exceed from 0.9 to 1 can the ht meter reads fast?

1024


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Un-Answered Questions { Electrical Engineering }

Why AC current leads voltage in capacitor and how?

744


How maesure earth neutral value & how much maximum value value required in between earth & neutral.

831


what is gas turbine intercooling ?

690


TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.

3754


2. Modify your design in question 1.a so that the circuit works according to the following function table X Y F 0 0 Clear 0 1 No Change 1 0 Parallel Loading 1 1 Count 3. Design a circuit that detects the pattern 010 in a serial input X considering: 3.a Overlapping 3.b No overlapping

677






How to determine the breaking capacity such as break down current and break down voltage for VCB and CT's.

978


According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor

785


how to calculation increase power factor for single phase

993


what is the difference between changer, converter and transformer?

165


I AM A ELECTRICAL PANEL BOARD DESIGN ENGINEER.IF I GO ANY INTERVIEW ,TECHNICALLY WHAT ARE QUESTIONS I WILL FACE FROM INTERVIEWER?

9172


In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

1837


how many safety really of DG sets.

877


how to control the speed to switched reluctance motor

746


What is the previous name of Cox's Bazar

820


Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.

2446