We wish to test 60 Hz systems from a 50 Hz supply. To acheive frequency conversion, we use a VFD. The VFD powers 40 kVA transformer, which has motor and non-motor loads on it. Will the transformer work?
2 5372Post New Electrical Engineering Questions
Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir
how to calculate the distance relay faulty zone?pls explain?
operation of diesel generator
difference between high and low impedance BUS BAR relay??
describe the Tranformer testing procedure
Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?
A 10 MVA, 66KV, 50Hz, Y-connected 3-phase alternator has synchronous reactance of 0.635 Ù. It is working at full load at 0.8 lagging p.f. condition. Find torque angle, neglect armature resistance.
We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.
in dc shunt motor if field winding is shorted then
When we need up only in o/p 440v, so why we use directly in 11kva in input?
In convertor can we use rectifier thyristor in place of invertor thyristor with explain.
I want definition for ABT Meter (Availability Based tariff) ?
If the earth is a good conductor of electricity, why don't people get shocked every time they walking on earth?
What is Phase margin?
High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?
