In AC Drives How can change & control its output Frequency?
Answer Posted / capseee
By triggering the IGBT inverter of the drive we can change
output frequency.
| Is This Answer Correct ? | 8 Yes | 2 No |
Post New Answer View All Answers
what is the usage of microcontroller in the panel board?
How to test Alternator stability test for REF relay
what is model question rrb junior engineer electrical gr.II
Define the overload capacity of the motor?
What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
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 are the different types of dams?
How can get elongation of 2 k.G aluminium, if elongated aluminium dia is 2.5 mm?
working principles of cf lamp,incandescentlamp and f lamp?
help me with the question that might be ask on the interview for technical position
what will be happen if earth point is being used for as a neutral point for raw power , and same will be used for ups earthing
What is q factor?
Define maximum demand?
explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?