Answer / k.prakashchandra

High voltage is required to strike the arc inside lamp at
the starting point and once the arc is struck and lamp is
illuminated ,the voltage across the lamp is zero.It is the
ballast which has to control the current and it requires
voltage rating and not the lamp

Answer / arunkumar

So far i know HPSV amd HPMV lamps requries only 210v for
initial ignition. Only the Metal halide lamps require 222V
constantly to glow

30 kVA and voltage 380/220VAC how to find out kA?

5 Answers  

---

what type of battery used for starting D.G?state its function?

2 Answers  

---

what are the ''pitting rings''and how cn they be controlled in a series generator

0 Answers  

---

What are the protections to be used for Generator?

5 Answers  

---

How to calculate the motor winding resistance ?

21 Answers   Forbis, L&T, OEGI, VTI,

---

how can we represne the analog signal and digital signal if want to measure the speed and we have to use PLC

2 Answers  

---

HOW TO CUT A CAKE IN 8 PIECES IN 1 STROKE

3 Answers  

---

What are the starting currents of different motors and also what are the running currents, and idle currents?

6 Answers  

---

why the alternator rating in kva generator in kw.

2 Answers  

---

how to calculate the breaking capacity of different breakers.

0 Answers   UltraTech,

---

What is Gnat,Ant,Rabbit &Dog overhead conductor? Please explain.

1 Answers  

---

What is the knee point voltage of CT-100/5,15VA,5P20 ?

3 Answers   ERL, NTPC,

---