Why a ballast and ignitor is required in MH and other lighting fixtures

2 Answers   Future Group,

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Why we use shunt coil in breaker??????????

7 Answers  

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anti pumping relay function

3 Answers   Hofincons,

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i want to know that what is the eligibility critaria for ongc exam?

0 Answers  

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how to find the ballast lost from the actual wattage? for example i am going to buy decorative type 2x36watts fluorescent light fitting for this lamp how to find the ballast lost? is there any formula?

2 Answers   MEIL,

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what will happen if 11KV is given to 1.5 square mm cable connected with constant load of 10A ?what will be the condition of cable after injecting the voltage?

1 Answers  

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phase association of 3PH L&T static CT meter is wrong. means 1PH & 1 CT connected properly and other 2 voltage and CT's inter changed. what would be the impact in the reading?

3 Answers   KSEB,

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if there is fire alarm,what is ur activity?

4 Answers  

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What is the measuring instrument of magnetic flux density?

2 Answers   CSEB,

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Bus-bar is made of which material & name of mostly used material in bas-bar design ?

7 Answers  

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WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv

4 Answers   BCET, NTPC,

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Why cables and busbar both needed in LT Panels?

0 Answers  

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