why we use star connection on the primary side of a transformer?

5 Answers   DRDO, TCE,

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Rccb trip or not with out neutral connect in three phase welding machine

1 Answers  

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How many companies are manufacturing 33 KV HT Breaker

1 Answers  

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Two 11 kv lines are feeding to common bus in a substation,I have one set of CT & PT(3ct,2pt), How can I measure both lines power using single set.

6 Answers   L&T,

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it is difficult to interrupt a capacitive current because (a)it has a leading power factor (b)current magnitude is very small (c)the restriking voltage can be high (d)stored energy in the capacitor is high

2 Answers   DGVCL Dakshin Gujarat Vij Company, MGVCL, UGVCL Uttar Gujarat Vij Company Ltd,

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How can calculate HT side VCB? For example I have 1250 KVA load what will be HT side VCB Amp.range and what size XLPE cable I use for HT side.

2 Answers   NASSA, Orchid, SB Automation,

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In a parallel circuit dc circuit with two resistors, if you know the voltage, amperage, and one resistors ohms, what formula is used to find the second resistors ohms?

6 Answers  

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What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?

0 Answers   Bhad Engineers,

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what is meant by negative conductor?

2 Answers  

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what is neutral ground resistance relay? how it is helpful in protecting system?

5 Answers  

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What is an isolation transformer?Why do we need isolate circuits?Where do we use them?

2 Answers  

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how to calculate the size of the cable for a particular rating 3phase induction motor?

1 Answers   Godrej, Megatron Solutions,

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