Answer / alianwar

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.

why the rotor current becomes in steady state during high slip region? please verify with equations.

0 Answers  

---

What is the difference between UPS and SMPS?

7 Answers   Mukand, NightFox,

---

how line turns ratio changes in 3 phase with change in connection

0 Answers  

---

why one side of tubelight glows after switch off ?

1 Answers  

---

if current required for triggering thyristor at -30 degrees(temp) is 80 mA, what is the current required at 60 degrees

1 Answers  

---

why using carbun bresh in dc motor

3 Answers  

---

transformer core are laminated for what purpose?

9 Answers   NTPC,

---

When calculation of fault current and fault Kva is to be done,why always we use per unit value and why we consider the base kva?

0 Answers  

---

Which capacitor is preferred for high voltage and frequency?

0 Answers  

---

What is the meaning of ST and HT in electrical transmission and what are thier range.

6 Answers  

---

What is the maximum percentage voltage drop (vd%)for a motor control center

0 Answers  

---

what is a,b,c,d checks diesel generator?

1 Answers   AFMC,

---