Answer / irfan khan

pt is the pottential transformer which uesd for measurement
of voltage as well as control supply also.the high voltage
can not be measure directily , e.g. incomer voltage is 132
kv so we put the bus pt of 132kv/1.732/110 volt /1.732 for
6.6 kv voltage measurement . the voltage of primarry and
seconderry may be vary acordingly.gernelly the seconderry
of pt voltage is 110 volt or 220 volt AC. so seconderry
voltage can be used measurement as well as protection.

Answer / ashish

bus pt is control transformer which are required for
circuit control.because we can't use the high voltage in
control circuit.

why the neutral point in connnection oscillates?

0 Answers   Avalon,

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Why primary batteries not rechargeable and secondary batteries are rechargeble??? If any one know please send me.

1 Answers  

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What Maximam Gap Taibaar & Bush

0 Answers   Bajaj,

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A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

0 Answers   L&T,

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i need to give section engineer (electrical engineer) for RRB. Please suggest some book

0 Answers  

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1 Answers  

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5 Answers   Jaypee, JOY,

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Why is voltage is required to be within permissible range for an electrical equipment?

0 Answers  

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Can any body tell me about INNER SHUNT COMPOUND MOTOR diagram?

0 Answers  

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what is pilot wire? what is the use of pilot wires?

9 Answers  

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what happen if power factor goss to above unity (one) ? of any electrical system or motor.

10 Answers   Air Liquide,

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a 25kvar capacitor bank connected to the secondary side of transformer.then why the capacitor draws more current then rated

3 Answers   TATA,

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