Answer / ganesh ajabe

Firstly to calculate total load in house
then calculate total current
if this current is 5A
else switch can be selected 6A

Answer / prasanna kumar

sfu is called as switch fuse unit.this will be used to
switch on/off a motor or vfd's etc.According to the current
rating of the motor i.e calulated by p=1.732 vi cos0 fuse
rating will be three times of that motor current and the
fuse rating will decide the sfu rating.if fuse is 64A in all
three phases then the sfu will be 64A.

What are the protections required in the main lt panel which is connected to the transformer.

1 Answers   Ispat,

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What is the difference between AC Drive and VFD?

10 Answers   ITC Infotech,

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why electron flow is opposite to current flow?

3 Answers  

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How to address the servo drive for motor

0 Answers  

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what is method of dc current measurement

5 Answers  

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In IDMT RELAY the term minimum (M) indicates what?

7 Answers  

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give 5 differences between relay and contactor

1 Answers   Texas,

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What are the two types of compensation?

0 Answers  

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what is transient enclosure vltage , very fast transients, very fast transient over voltages

0 Answers  

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On the secondary side of a distribution transformer, we use 1c x 630 sq mm cable. Why dont we use 4 core cables instead of 1 core cables on the secondary. Why we use aluminium cable glands on the outgoing instead of brass cable glands?

2 Answers   Siemens,

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What is the need of black rock stones under the transformer yard?

5 Answers   TNEB Tamil Nadu Electricity Board,

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why neutral and earth should not be connected on 3 phase 440v/50c/s supply at consumer side. where as on 25kv/ac/50c/s railway traction substation neutral and earth will be connected and track at substation. and track will act as neutral and earth. Reasons for this is needed urgently

4 Answers  

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