Answer / guest

Resistivity is the property of a material to resist the
flow of current through it, whereas resistance is the
measurable quantity of that property.

Answer / konda.dady

both are constant for a particular material but
resistance opposes the flow of current through a wire..
(R=V/I)&(R=pL/A)

What is the minimum setting in REF relay because i am facing some problem whenever power resumes after power failure my transformer is tripping because of REF trip. I am using CSPC make numerical relay(DIP switches). Now setting is 15 percentage. What is the reason for this triping. I sm waiting for answer

2 Answers  

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In Siemens S7-300 PLC, what is funtion and funtion block ? What is the difference between them ? When to use function and when to use function block

2 Answers  

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Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

0 Answers  

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What is the % number of various buses in a typical power system?

2 Answers  

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How to get a multiplier in 11kv energy meter?

1 Answers  

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i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.

0 Answers  

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How to calculate Voltage regulation of 22 KV Over head Line.

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what is meant by transformer differential protection ?

3 Answers   BFL,

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whycircuit breaker is not connected at the generator end where the capacity of the generator is more say 60MW, 100MW etc.

2 Answers   Adani, Adani Power,

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what is direct dischage of power transformer

1 Answers  

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can you tell me/show me, how to manually synchronize 2 DG. preferred with video.

2 Answers   Cummins,

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if 1hp jet motar drop voltage when start from 220v to 120v give the reason and solution.

1 Answers  

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