HOW DO I CALCULATE OVER LOAD RELAY & CONTACTOR IN DOL STARTER? & in dol why it is require circuit breaker?

6 Answers   DLF,

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How i can select current transformer and meters for the upgrading the panal..for 200kw to 600kw....i need to select monitoring and protection ct,s and apmpire meter ,kw meter too.

1 Answers  

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what is the Transformer Impedence?How can calculate?

0 Answers  

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Why 5kv megger used to megger 6.6kv motor or 33kv transformer why not 500v?

2 Answers  

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During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP

0 Answers  

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What is the difference between vector surge relay (78) and Pole slip relay (98G)

0 Answers  

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what is the frequency standard with tolerance level for India?

16 Answers  

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Why Hg means mecuiry used in vaccum mesuring unit?

2 Answers   Manhattan,

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concept of busbar and load dispatching..?

0 Answers  

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what is the diffrence between voltage and current?

11 Answers  

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what is quality factor in series resonance circuit and calculate the factor of voltage magnification? how it happens?

0 Answers   BARC,

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What is the resistance of human body from head to toe?

10 Answers   Bhel, Getco, Infosys,

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