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what is the HT motor current setting (Motor protection relay)aganist FLA If the capacitor is connected in parallal to the motor to increase the P.F from 0.89 to 0.99. the setting is to be reduced. what is the formula for to calculate the current.(FLA - CALCULATED CURRENT!= )
1 8654what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors
1952we know that dc motors are more superior then three phase induction motors in torque generation though they are not much used in industries why?
5 7900What are the reason of unbalanced secondary voltage of HT transformer 33kv/6.6kv ? Incomming voltage is balanced.33kv each secondary voltage 6.6 kv 6.4 kv 6.4 kv At no load conditions.
1 3779DO MEGGER TEST APPLIED ON SURGE ARRESTOR? IF YES THEN WHAT ARE THE ACCEPTED R VALUE REQUIRED FOR SURGE ARRESTORS FOR VOLTAGE LEVEL 11KV, 33KV
2 10123in small capacitor we use uf( micro farad) and in big quantity we used kvar. i want to know that in 1 kva how much will b uf(micru farad).
2 5238Post New Electrical Engineering Questions
what is the control circuit for operating the clean room air shower
explain all the classes with example
What is resonant peak?
what is mean by PIR in circuitbreaker and give me detail of that?
what is the pre charge circuit,what will be work which function it will be use plz tell me
We have given to 3phase supply to ups system & how can coming netural
I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.
v/f drive basic princeple
Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com
what is the carona effects meaning in HT line transmmission system
Write the force balance equation of ideal dashpot element.
What is servo motor and what are the applications of servo motor?
1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?
If one lamp connects between two phases it will glow or not?
which one is more efficient, torq, power & ecnomy with the same frame size AC motor / DC motor?
