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Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.
2 8124we have many gas turbine blades, during the shot blasting process some of shots entrapeed in the cooling hole of blades..how can we remove the shots entrapped in holes????
1 4178Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..
2 4523Why do we need to install hook-up line differential pressure type level transmitter when the differential pressure type level transmitter with capillary are available?
2 9653In n high voltage 11kv system What happened if 1 of CT cable (IDMT) loose.Will e/f or o/c trip.please explain detail
1 4349Can a transformer designed for a particular voltage and frequency rating be used for different set of mentioned ratings? Assume that the winding does not get burnt because of overheating at higher voltage. If yes, then under which constraint it is possible?
1 3383How can we say that accuracy of measurement increases by using 3 or 4 wire RTD? because for example: If resistance of RTD element is say r ohms and Resistance of the cable from transmitter to RTD is R ohms And if 4 wire RTD is used, ____._____________________ R ohms | |_____._____________________ R ohms / \ / r ohms \ \ | |______.__________________ R Ohms | |_______._________________ R ohms Then the actual resistance measured will be: Total = r + R/2 + R/2 = r +R Ohms Note: r+R instead of r ohms. hence error
2 5473
What is the difference between security constraint unit commitment and security constraint optimal power flow?
What are the different elements of marketing mix?
does capacitor requires ac or dc supply?Why?
What do you understand by the hooke`s coupling. What are its purposes?
how to calculate bearing width
What is meant by impedance? difference between high & low impedance ?
how water evaporated in sea
Why are the cores of large transformers built up of circular transactions ?
what are the main problems of solar electrical systems? to make quality control on, which parameters that need so?
how to implement spiral model on railway reservation?.
what will happen if earth of 33 kv cable (earthed system) is not connected to earthing pit?
WHICH SIZE A.B.CABLE IS USED FOR 11KV.
HI, can anybody give details about GAS TREATMENT PLANT CONSTRUCTION,as INSTRUMENTATION ENGINEER what are the responsibilites.what are the instruments mainly instrumentation engineer will deal with
CT Ratio of a energy meter connection is Red Phase : 100/5A, yello Phase : 50/5A & Blue phase : 100/5 A what is the overall Multiplication factor
i have 500 amp inductive load of motors ,,,pleas tell me how can i calculate for capacitor bank for improving my power factor to 99 .....calcullations for capacitor bank,,,,
