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what kind of motors are used in the winders of coal field?and what are the various methods of it's speed control?
1 3581Please brief me about number of pole in alternator.In single phase alternator coils are connected in star or series. How to calculate frequency for the same.
1870my UPS suddenly goes off and all panel light also blow off.This happens even main electric supply is not interrupted.After some time it automatically starts functioning normally.Batteries are new.
2013Post New Electrical Engineering Questions
how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence
which phase is preferred for connecting 1 phase vt used for synchronizing OHL? WHY?
How is the speed of a DC shunt motor related to the armature current?
Why transformer used in UPS??
what are the safety measures of induction motor?
why we testing the core balance of the transformer before comissioning?
I WANT BHEL PREVIOUS QUESTION
what is PWM in IGBT and how it works for drive.?
what is accuracy ? in any meters , coils accuracy . how can u defined that ?
what is through fault?
We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's
how the CT and PT is connected in the circuit during testing of transformer explain with diagram
How to know the following data of synchronous generator 1. D-Axis Unsaturated Reactance 2. D-Axis Unsaturated Transient Reactance 3. D-Axis Unsaturated Sub - Transient Reactance
can we do the star delta connection of capacitor for 3- phase motor starter.
What is 11 N1 and 12 N2 in single phase Transformer ?
