Answer / sachin

Secondury open circuted,Ct,s Secundery winding is always
ahort ckt.If it opens Ct get satuarated and damage

Answer / t.gnanavel

if the secondary winding is in open there is no back emf to
the primary winding.so the current in the primary winding
increased to an infinit value and the coil gets burn out.

what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

0 Answers  

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what is the difference between starter and control panel..?

4 Answers  

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Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?

0 Answers  

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Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?

0 Answers  

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How can you calculate in detail the VA burden of current transformer used for Restricted earth fault protection? Please understand that the CT required here is Class PX or X. Also please show the calculations for knee point vtg, stabilizing resistor, magnetising current.

3 Answers  

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What is the different type of class in CTS and why it is required

2 Answers  

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Pl. brief about break-down maintenance of machine tool.

0 Answers  

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In CT,which terminal(s1,s2) need to be grounded?

2 Answers  

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What is differnce b/w tie breaker and bus coupler?

1 Answers  

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when we connect the capacitor banks in series with the circuit?

3 Answers   Cipla,

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what is a switchgear. what is its work & where it is used?

5 Answers  

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We have a bank capacitor rating of 60 KVAR for a overall load of 160 KVA and we have connected three loads of 50KVA each. We would like to auto matically correct PF using APFC. How do we design it?

2 Answers  

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