Answer / arun 7389944985

if any phase shorted to earth that time current flow div
into 2 way , CBCT senes half current only, but u earth at
only cbct end full current flow throw cbct ,then get
protection trip

-What is leakage current . how much leakage current is allowed.

3 Answers  

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What is oil temprature with A/T contacts in Transformer ?

1 Answers  

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How many companies are manufacturing 33 KV HT Breaker

1 Answers  

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For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

0 Answers   Ecil,

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iii) A shunt motor runs at 70 rad/sec from a 460V supply and takes in an armature current of 100A. Resistors of 2.52 ohms and 1.64 ohms are connected in series with the armature and in parallel with the armature respectively. The field excitation remains direct from the 460V supply but the generated torque is halved. Determine the new running speed. Neglect brush voltage drop. The armature resistance is 0.4 ohms. [15]

1 Answers  

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What is the Diff. btw Fire Alarm System & VESDA System??????

1 Answers   Emerson,

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If the circuit breaker will not close or it will trip, what will you do?

3 Answers  

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whenewher three phase supply is given to induction motors revolving/rotating field is created & rotor rotates.When the three phase supply is given to three phase transformer then revolving,/rotating field is created or not? if not why?

1 Answers  

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what is feed back and what are feed back amplifiers?

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How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

3 Answers  

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what are the condition that makes hooter blow?

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hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

0 Answers  

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