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why three phase system is not preferred in aircrafts power
cckts if yes than explain reasons?
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in star-delta tranformer,if the input of star connection is 400/7v 3 kva then what is the output of delta connection?
Why the field rheostat is adjusted such that the voltmeter reads 380V
why do we put a transformer on soak before loading it
Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?
1. How many types of mangers? 2.How many types of capacitors? 3.pls tell me normally types alternator problems?
explain comutator action in detail.thanks
Define steady state error.
what is the star delta connetion and how can do it a three phase motor with control witing with picture
If rotor works in clock wise what happens
Could Please Explain briefly. Why used stabilizing resistance series with High impedance bus differential protection relay.
why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?
How can claculate to attain the desired PF in the line ( HOW Much KVAR is required ) Pls Give the formula? Equate Petrochemical 0 1 how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec. 0 1 What will happened. if we feed 3phase supplay to the stater with out insert the rotor. How much current will flow through the stater winnding? Equate Petrochemical 0 1 What is required of exietation to the alternater. 0 1 why star point of HT motor not earthed? Equate Petrochemical 0 1 Why we are getting low voltage in star connection? Equate Petrochemical 0 2 What's ND relay & it's functions? Equate Petrochemical 0 2 How instantanious short circuit current is calculated? its formula? Equate Petrochemical 0 2 What is servo Motor? What's the advantages of this motor over Induction motor? Equate Petrochemical 0 2 What is core CT & it's function? Equate Petrochemical 0 3 what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY L & T 0 4 What is required of exietation to the alternater. KNB 1 23 what is the design voltage for 6.6KV 2000 KVAR HT capacitor? Consultancy 0 3 Pls explain about vfd control?Where it is used, Give some example? siemens 1 22 Please explain me abt PQ diagaram in the power sector. 0 9
what r the checklist while installing a 380 kva DG set
how can i find cable size from current rating?
Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?
