why incomer bay is required before transformer bay if there
are more than 1 nos. of transformer bay.
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WHY TRANSFORMER RATING IS MENTIONED IN KVA RATHER THAN KW
For a spring controlled governer the relation F = ar+b (F is the controlling force, r is the radius of rotation a and b are constants), indicates that the governer is
relation between voltage and frequency.
5 Answers IIUI, Lucky Cement, Reliance,
Why are lt windings placed near the core?
if the transformer at full load have a iron loss =900w and copper loss = 1600w . what percent of the load will the transformer has a maximum efficiency?
Which system is best for industries 3ph 3w or 3ph 4w?
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
what is the main difference between power devices and signal devices
what diff. between earth nd neutral?
What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.
What is Magnetic Current Test of Transformer.
when 20hp 3 phase motor start no load condition in star or delta connection.find current and write formula.(tariq)
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