what is the preventing maintenance of transformer

1 Answers  

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what are RCBO ?

4 Answers   GE,

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While connecting the flood light plug on to the 415 V distribution panel,there was spark and the cable got burnt. Three ignitors of the flood light also burnt of. The lamps are of 400 W (total 6 lamps) connected through 1.5 mm2 cable. The plug was immediately removed from the circuit. There was a 30 mA RCD connected and a 250 A MCCB; however both did not trip. What could be the possible reasons for the circuit devices not to trip?Can someone assist please. Additional info if needed can be provided.

2 Answers  

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How will polarity test of Dy5 Transformer ?

0 Answers  

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what is the thumb rule for determination resistance of resistor?

0 Answers   Siemens,

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what does happen if generator frequency fall in running condition & what should require immediately

4 Answers  

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what is harmonics?

1 Answers   powercom,

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if we put a energy meter in 500 kvar capacitor bank ,then how much units show in energy meter per day.

2 Answers  

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How can i calculate knee point voltage of 800/5A Current transformer?please explain me with suitable calculation?

2 Answers  

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which bulb is greater iluminited, 60w and 100w are conected in series?

2 Answers  

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I have a transformer 3phase 11kv/410v and its name plate missing. now how can I judge its rated kva?

2 Answers   Coca Cola,

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How to calculate voltage drop loss in HT 11000 Volts XLPE Aluminium conductor cable. Any specific formula or Thumb rule

2 Answers  

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