Interested to Buy Any Domain ? << Click Here >> for more details...
What is Automatic Voltage regulator(AVR)?
- 6 Answers
- 21016 Views
- Cummins, I also Faced
- E-Mail Answers
Answer Posted / bhanu pratap
to understand the function of AVR first v have to understand
concept of reactive power....
all of u know reactive power..
a generator has active power and reactive power... infact
with out reactive power ther will be no generation..
reactive power is the one which is the power consumed for
the establishment of magnetic flux in the machine without
which no generation takes place....
coming to the AVR..
consider a generator supplying to the grid.. as the grid is
not purely resistive.. it generally is inductive since loads
connected to grid(consider industries)are inductive..
generator tries to draw reactive power from the grid for the
development of its magnetic flux...(under constant frequncy)
when frequncy changes ..it disturbs the magnetic flux ...so
the geneartor tries to draw more n more reactive power from
the grid.. if this happens .. rotor of the generator will
get heated due to this reactive power..
so here comes d AVR... avr produces the xtra amount of
voltage required for the machine to maintain its magnetic
fld so that (V/F) will be constant...
thats wat i feel.. inform if any corrections
when
| Is This Answer Correct ? | 9 Yes | 3 No |
Post New Answer View All Answers
How can we calculate the transformer rating if the load calculated is 1000KW (11Kv Supply)?
3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........
Please explain the following and how these are working with PLC unit 1.I/O Module 2.I/O Device 3.Adaptor Card 4.Ribbon Adaptor 5.RS 485-FC
All tape of electrical questions Answers tape of motor transformer e.o.t crane
Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??
need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.
how does an encoder work???
Electrical 'C' license full abbreviation , and full form
what happen when increase or decrease size of lamp,light.glass.
why three phase capacitor takes unbalanced current in capacitor bank?
i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?
In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.
Is there chopping current in resistive circuit
What is the difference between indoor and outdoor transformer
how to commissioning the genset with amf panel?
