What is Difference Between static & Dynamic Pressure of Fan & Blowers

2 Answers  

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Please let me know when replacing electromechanical Relays for protection of generators with sr489 multilin Relay, then there is no need to use 86 master trip relay Too. I am wondering this multilin relay has no contact to Stop breaker reclosing as 86 does

1 Answers   Neucel,

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what are the protection relays for trasformer

3 Answers  

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can we do the star delta connection of capacitor for 3- phase motor starter.

0 Answers  

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ACB & VCB how do work and saftes and how can maintenance in this and parts name show with picture

0 Answers   Mukand,

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what is the function of a Master trip relay? why is it used ?

5 Answers   ABB, Nissi Engineering Solution,

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what is the meaning of the HT LT transformer?

10 Answers   Sify,

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what is reactive power?

8 Answers  

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Sparking occur when a load is switched off because the circuit has high – a.) Inductance b.) Capacitance c.) Resistance d.) None

3 Answers   Ecil,

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what is stiffness factor

2 Answers   NTPC, Power Plant,

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why contactors are used ...? is contactors and relays are same ...?

5 Answers  

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How can we explain that what is the power factor?

5 Answers  

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