Answer Posted / ramraj beda
variable frequency drive.This drive is used to control the speed of induction motor by controlling its frequency.This is used in fans, pumps, blowers etc.
Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
what is arc flash and what are the hazards involved
Earth is a conductor or load?then ammeter connect to 3- phase supply,it shows the measurents or not?
WITCH CARDS IN USE IN FIRE CONTROL PANEL.
what is the main function of capacitors in mccs.
(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)
what is mean by descripiency relay? & wht is its ansi code?
how flow current in 220 kv line to line
What is a single phase autotransformer?
Why the output of OP-AMP is always less than Vcc?
Why is negative feedback invariably preferred in closed loop system?
what is reactive power?, why its measured in VA ? is it transient behavior of system?
EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?
WHY RATING OF VCB NOT LESS THAN 630A
What do you understand by avr?
What is the important precuations need tocarried out while working with Electrolite in Battery PM?