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

wat is the difference between BE &BTECH.

8 Answers  

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describe your self.

2 Answers   Amazon, Bechtel,

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Can we use Ccapacitive voltage transformer directly for metering purpose?

0 Answers  

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for a 132/33kv transformer secondary is star and is connected to NER. and from secondary a cable is running to 33kv swbd. since the cable is single core do i have to run neutral cable also to 33kv swbd.???

5 Answers   PowerTech,

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how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

0 Answers  

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what is the formula of starting current of 3phase and 1 phase motor???

0 Answers   L&T, WFP,

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HOW MUCH MAXIMUM CURRENT TAKEN BY NEAUTRAL IN 125 KVA DG SET

1 Answers   KOC,

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What is Co-generation in the context of electrical power systems?

1 Answers  

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what is an rmu?its circuit diagram.functions

14 Answers   CP Bangladesh, Emrill, NDPL,

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what is the diff between earth leakage relay and earth fault relay?

7 Answers  

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In a 132KV Grid Station where voltage level is 132KV, here,  why the rating of Surge arrests installed 120KV ? 

1 Answers  

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how the B-H loop obtain under the static condition

0 Answers  

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