Answer / nasser

for productions

what is the difference between synchoronous and alternator and induction motor and generator

2 Answers  

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tell 2 reasons for why only copper is used in domestic wires& only alluminium in transmission lines ?

10 Answers   ABB,

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WHAT IS THE SPECIFICATIONS CONSIDERED DURING DESIGN FOR THE OVER CURRENT RELAY?

3 Answers  

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What is static frequency control used in gas turbines

1 Answers  

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how to calculate knee point voltage of current transformer?

21 Answers   Bhel, Bhilai, Jackson,

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how we can know which is Lv side and HV side of transformer by just seeing it?

7 Answers  

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How does numerical relay work?

1 Answers  

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What is the range of the stator resistance of 3 phase induction motor?

1 Answers  

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How to calculate 33 kv panther conductor line losses.

1 Answers   Construction, Orange,

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what is maxemo work permit procedure

0 Answers  

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Just a silly question but just to make my curious mind bac to normal - Why was not 67 and 67N relays built into a single relay as i have noticed that the R,Y,B CT wiring end up into the 67 relay while the common of the R,Y,B CT wiring end up into the 67N relay. Then it was better if a single relay was manufactured just like the distance relay (21). Another question i would like to ask is - how do we know where the 67 and 67 N relay has to be placed.why is it not placed at the transformer bay? In the substaion that i am working -i have noticed that it is placed between a breaker and a common double bus bar and this line bay is connected to another substation at a remote place which is furthur connected to a load. B U S______CT for 67 & 67N ______Breaker _____ remot s/s. B A R

1 Answers  

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Is the theorem applicable to ac sources?

0 Answers  

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