Answer / k.prakashchandra

Armoured cables are used to protect cables from
physical/mechanical injuries

Answer / arun

answer 2 is partially correct but i would like to add one more point i.e armour is not only used for mechanical strength and it is also used for earthing i.e if any leakage occurs than that leakage currect will be earthed through this armour

Answer / pillay

3 phase motor can be cabled by any method provided
it provides the necessary safety at site and meets the
requirements of the regulations.
armoured cable is more often used because it is a faster and
a cheaper method that meets the requirements to connect a motor.

What is difference between YNyn0 and YNyn ??

0 Answers  

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what are upstream faults and downstream faults in power system

2 Answers   Sreetech,

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Dear all, Can anybody tell me that how to choose CT for a specific load? I have a 200kw induction motor, which ratio CT should be installed? Is there a formula or calculation that determines the CT ratio for a load? Regards.

2 Answers  

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sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.

1 Answers  

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Under Ground Power cable earthing is required at both end or single end? and reason for the same

3 Answers  

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There is 3phase power cable from 1 point to the other point which is 100m away. Two point equipped with power meter and recorded 1st point is 205kW while the 2nd is 202kW and each phase average carry 400amps. To calculate the resistance of the 3phase power cable, is the formula using will be P=I2R?

3 Answers  

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why back up fuse used in vacuum magnetic contactor?

1 Answers   KNPC,

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I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.

0 Answers  

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What is the out put of a CT? How the ratio is decided ?

1 Answers  

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capacitor is load free component but why ampare meter shows the current when the capacitor bank breaker close?

4 Answers   OPS,

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what is difference between inductive and reactiveload?

5 Answers   ONGC,

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what is the Space heater? why using in Electrical motor?

3 Answers  

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