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How the size of electic machine vary with the sped? Between slow and fast running machines of equal ratings, which one is more economical to design?
1 3586Why different values of B’s (magnetic flux density) are chosen for DC machines and Induction Motors?
1 3343From stability point of view,What(higher/lower) should be the value of inertia constant of rotating machines?
1 3892There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.
1 6877In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem
2025Post New Electrical Engineering Questions
What is EHT tariff or Power factor Tariff ????
oltc of a transformer, how it works? and what are the equipment consist of describe briefly?
What are the different circuits in thermal power plant?
What will be the effect if I use inverter as UPS mood?
why we setting 95 deg and 105 deg in wti and oti of distibution transformer ? give the reson for that ?
12.5 tons a/c is their how much kva generator can recommend to the customer.
What are the advantages of thermal power plant?
What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?
Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more
can we choose current transformer secondary, to calculate residual flux in a power transformer, so as its saturation is close to the saturation level of power transformer?
What is the function of electron gun assembly used in crt?
For RCD (Residual current device) Icu is defined. How i can find Ics for them?
I Just want do EHS Certified Certification Distance Course From Govt approved,so can any body provide me details.
Why an ac systems are preferred over dc systems?
State the methods of improving power factor?
