How to design CT for connected with Transformer OLTC operation? normally CT output design for 1A/5A range but during OLTC Tap position changing time how to function the CT?
HEG,
1 1735It is being often experienced that due to single phasing fault of any source transmission line of any closed loop synchronized circuit all the power transformers with primary stared trips but the power transformer with primary delta wont, why ?
MSEB,
1 2787Post New Electrical Engineering Questions
WHAT IS SPEC OF CLEANROOM MOTOR AND LIGHT FITTINGS?
what is the purpose of high speed earth switch in gas insulated substat
generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...
could anybody able 2 send me jindal steels previous papers fr electrical steam....pls send 2 my id if possible....sirisha.shaik@gmail.com
Instrument connected to a single phase supply
Explain what is Zener diode?
why power factor is important?
Swg formulae
excitation limit of an excitor
how we can calculate power factor in single phase & three phase ?thank u
what is residuel magnetism. and how order lead acid batteries for 24 volt. emergency lighting system.
operation of protection relay watchdog contact?
Explain Random and Deterministic signals?
What is a copper loss or i2r loss pc?
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.
