Answer / power team

* Power Consumption is less in case of Three Phase Circuit
(P= sqrt of 3 * Vph * Iph * PF)where as in single phase
circuit,power consumption is more(P= Vp * Ip *PF)

* Efficiency is much better in 3Ph circuit than 1Ph circuit

* Cost of transmission is high in 3Ph circuit

* Voltage regulation is better in 1Ph

* 3Ph circuits are widely used by Industrial HT consumers

calculation of lad carryinc capacity of 6mm2 cross section wire in 415 voltage circuit. What will be the amps.

0 Answers   MAHINDRA,

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Can we use Ccapacitive voltage transformer directly for metering purpose?

0 Answers  

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List the materials required for Pipe Earthing.

2 Answers  

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why choke is provided in the centre of the tube light?

3 Answers  

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why we dont store the ac power in battery?

1 Answers   TCS,

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HOW MUCH KVA DG SET REQUIRED for charging 12v 4000 ah battery?

3 Answers  

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What is thef ormula to calculate the rating of a capacitor for a single phase motor

2 Answers  

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what is the response time of relays when a FAULT OCCURS IN A POWER SYSTEM?

2 Answers  

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Why we make earth connection with Transformer Body and What will be the minimum size of copper wire as per code with respect to KVA rating of Transformer?

0 Answers  

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what is the value of voltage & current lightning during rainy season.

0 Answers  

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Does the motor power displayed on the Motor name plate is the mechnical power motor delivers or it is consumed power from the system?

2 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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