Answer Posted / nur.asidik

it depends on voltage rating, current rating, and application, for motor, it is better to use fuse, why?. because we can select arcing current and arcing time.MCCB does not have. MCCB suitable only for static load

if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

1868

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Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?

2328

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What do you mean by a current transformer?

1088

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CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS

1871

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explain PV modules in solar energy generation.

1920

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why are installed water leakage detection system data centers & server rooms

2379

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What is the theoretical reason for the size of a zig zag grounding transformer to be 1.732 times less than that of a wye-delta grounding transformer used for the same application?

2270

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what is meant by power and distribution transformer ?

1980

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Control cables in S's will carry 1000v which is AC R DC? Pls answer me 

2148

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How phase displacement change in the over current relay coils.

2420

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What is the dc grounding system and what is diff between AC/DC grounding system?

2112

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How to design the earth grid for lightning protection in an industry

4653

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1.4 What is meant by CT knee point voltage and how would you determine it

1680

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list the type of vfd? wich is sutable for heating kiln?

2052

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Why the efficiency of generator is more than motor in swinburne's test

2016

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