Since phi is the angular displacement between V & I, then why we use phi in power triangle ie. when showing active, reactive & apperent power in triangular manner & if it is ok then where is V & I in the triangle.
1 3888why neutral of 6.6 kv star connected sq. cage induction motor does not get earthed, though for earth fault protection it is must.
7 13883why active power is called as real power or working component.What is the exact function of active, reactive & apperent power.
3 11260How to calculate the diesel generator efficiency? what details are required to identify the running diesel generator sets with 1000 kVA & 180 kVA?
11 92319How a synchronous generator practically work? what is the function of avr(automatic voltage regulator)in synchronous generator?how the connection of avr to the generator made practically?please give me the answer.
6 32705sir& friends i want the collection of recent quetions asked in interview of top most companies please send me on my email san.jsr@hotmail.com
1865why voltage drop if we have connected 230 v ac suplly through diode to bulbe we found haft ie 110 voltage drop why it is
4 7322ON WHAT BASIS LOADS ARE CLASSIFIED AS RESISTIVE,INDUCTIVE AND CAPACITIVE LOADS?.GIVE PRACTICAL EXAMPLES FOR EACH
6 24611Post New Electrical Engineering Questions
can i able to get bhel previous exam question paper?
anyone knows service engineer in chennai for EDM SPARKING MACHINE.CHMER PULSE CD 60 M.pL GIVE ANY CONTACT NOS
RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV
Draw the line diagram of diffretial relay connected to transformer?
can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.
Anybody tell me about modbus hex address of l&t trivector meter er300p??I want to read voltage,current,kwh etc via rs485...If anybody have a manual then send on my mail..Brijeshmodi18@gmail.Com
Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,
please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com
How to calculate the sag on transmission Lines.
1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.
What was your role in the silicon evaluation/product ramp? What tools did you use?
please send me the L&T Emb. sys. placement papers and entire details of pattren
Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?
PLS SEND THE RRB CHENNAI MODEL QUESTION PAPER my email id is ganesan98655@rediffmail.com
How much minimum insulation required between 11kv/3.3kv transformer windings?