in three phase 11kv transformer (11kv/433v) input( R,Y,B) output (X,Y,Z,N) the connection as follows 1 phase R -open 2phase y connected to both R and y of input] 3phase B- B what is the output voltage X to N ,Y to N , Z to N2 7177
If we tell 60 sq.mm. 3-1/2 core cable,then what does it mean ? 1) Each core section in the whole cable is of 60 sq. mm. 2) The whole cable is of 60 sq. mm. which is sub-divided into 3-1/2 core.3 3704
In all electric motors, fans are provided to dissipate heat. How it dissipate the heat? By absorbing atmospheric air or by exhausting the heated air generated while running?
why are the a.c.series motors preferred for electric traction4 7965
In 1000KVA Transformer why does we connect HT with delta connection and LT with star connection.Illustrate by showing formula?4 7248
IN A SMALL D.C GENERATOR, IF WE REPLACE THE LAMINATED CORE ARMATURE WITH A WOODEN BLOCK OF SAME SIZE & SHAPE AND WIND WIRES WOUND ON THE SLOTS OF WOODEN ARMATURE AND CONNECTED TO THE COMMUTATOR.COMMUTATOR IS FITTED WITH BRUSH TO RECEIVE INDUCED E.M.F.WHETHER E.M.F GENERATED OR NOT?3 2574
show that power dissipated by a pure inductor exited by a sinusoidal voltage source v = vm sin wt is zero1 2969
in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?1336
A ceiling fan moves Counter clockwise & a pedestal fan clockwise.....y the difference????5 7910
What information we need to prepare relay coordination chart
How does the phase sequence controller works, how it identifies the phases? confirm working principle
Is Transol transformer oil comparable to nynas nytro libra?
Dear friends I want to design busbar for1600 kva transformer(i.e2100 amps) what are all the factors to be considered before selectinga busbar what are all the standard sizes of busbars what is the formula for finding current of copper and aluminium busbar
what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.
Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..
why different series of vfds (like allenbradley)are used in industry ?
What is block diagram?
What is difference between isolator and circuit breaker?
What are the effects of electrical faults?
what is the formula to calculate voltage drop/loss on 66KV Transmission Line?
The Q-facr o of a coil given as wL/R. what will be shape of Q versus frequency graph.
temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%
Can we put 3 layers of cable tray while installing tray
What is the theoretical reason for the size of a zig zag grounding transformer to be 1.732 times less than that of a wye-delta grounding transformer used for the same application?