Answer / simon

Nothing

Answer / g.t.manikandan

it will trip

Answer / kuruva eresha

Thier is no change in power system

What value(high/low) of diversity factor is desired in power system and why? How such value is achieved?

1 Answers  

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what are doing the duall connetion in tree phase 10hp or etc motor with circuit diagram

1 Answers   Mukand,

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We have ONLINE UPS 15KvA (3PHASE 440V I/P,3PHASE O/P,440V) I want to step down from 440 to 220 V What to do. Pl. suggest with specification.

1 Answers   ARDE,

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What is PIR (pre inserting resistance) in 400kv EHV SF6 BREAKER? Why it use?

1 Answers   Adani,

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how a flip flop can be used as a latch?

0 Answers  

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if field winding of synchronous generator are shorted on each other will it start or burn or run for short time like induction motor

1 Answers  

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what happens if a carbon brush is touching the top end of the commutator

2 Answers  

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For high frequency application we use which transformer?

0 Answers  

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Why a transformer Noise during its running condition ?

8 Answers   NTPC,

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what is the reasons for blowing fuse

1 Answers  

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Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1.  H1-H2 = H2-H3 H3-H1 2.  H2-H3 = H3-H1 H1-H2 3.  H3-H1 = H1-H2 H2-H3 For the LV side also: 4.  X1-X0 = X2-X0 X3-X0 5.  X2-X0 = X3-X0 X1-X0 6.  X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0  H2-H0  H3-H0    X0-X1  X0-X2  X0-X3 128.0  119.9  7.2      29.2   13.3   15.8 70.7   128.4  59.2     23.4   22.0   3.6 7.2    120.1  128.1    13.4   29.3   15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?

0 Answers  

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What is Biased Generator Differential Relay?

2 Answers  

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