explain LED lamps?
A Light Emitting Diode lamp is a solid state lamp (SSL)
that uses light-emitting diodes (LEDs) as the source of
light. Since the light output of individual light-emitting
diodes is small compared to incandescent and compact
fluorescent lamps, multiple diodes are used together. LED
lamps can be made interchangeable with other types, but the
presently at a higher cost. Most LED lamps must also
include internal circuits to operate from standard AC
voltages. LED lamps offer long life and high efficiency,
but initial costs are higher than for flurorescent lamps.
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what need of NGR(neutral grounding registor)? What it works?
OUR METER READER TAKE READING OF INDUSTRIAL CONSUMER.THEY ALWAYS ASK HOW TO INCREASE POWER FACTOR FROM 60% TO 99 % TO AVOID PENALTY OF POWER FACTOR.
What is the drawback of static coefficients?
What is induction motor
Why capacitor bank is not neccessery to switch on,pls answ me with formula
Under wat condition statcom operates as an inductor for the transmission line?
When we use PT in HT Panel why the ratio is 11Kv/√3/110v/√3 please explain briefly with suitable formula?
why all transformer colour is same?
1. what type of winding of slip ring ac induction motor rotor and why. 2. how the heating element use in two phase (415 volt)and what rating of element, you prefered.
What about Reactive power.and role of that one?
what is principle of DG
Ho de we calculate the line loss of a 500 kv line over 1000km.
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