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Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.
DAE,
1699Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.
DAE,
1663Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.
1690Post New Electrical Engineering Questions
The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.
In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.
how commomn gate triggering is given for TRIAC ? other thyristor wont be efffected?
in 132kv substation CRT means
1.Z transform always lies around ? a) origin b) pole c) zero d) z=1. Multiples Mcqs which is bother me can’t find answers on internet. Some help required with little explanation . Note: this is not homework or related to any test. Thanks
What is turn ratio of a transformer?
What is the function of the circuit breaker failure relay?
What are capacitive,resistive,inductive surge absorbation? What is ferranti surge absorber? What is lagrangian cost? What is Px operator?
how point on wave controller works.
calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.
why single phase to grd test in HV cable?why not 2 phase at a time?
what is integrated ac contact circuit
How can maintain our H.T. motors used in cement plant. please send me procedure.
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?
In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.
