What is the use of IGBT in UPS & its working??????????
Answer Posted / ramesh
High switching speed with high impedance in a single component with low expensive inside of BJT & MOSFET.
High-current and high-voltage bipolars are available, but their switching speeds are slow, while power MOSFETs may have high switching speeds, but high-voltage and high-current devices are expensive and hard to achieve.so this difficulty shortouted by IGBT
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
What do you mean by cogeneration? What its working principle?
from generating station If 400v LT line length is 1000m how much voltage is drop and how do i calculate it? which cable will be use for this line?
why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?
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?
what is charger supervision and control supervision?
What are the basic elements used for modeling mechanical rotational system?
How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?
what are inherent currents?
what do u understand from filter factor of reactor?
What is electrical grounding?
why sometime we get electrical shock while touching the ballon of dish tv connection ? which we should not get.
How to Calculate The sag of OPGW in Transmission Line???
What is the selection process of breakers. Can any one please give a formulation on same?
Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)
What is the type of earth fault protection used in battery? explain.