Answer / najamkccl

the vector group designation indicates the winding
configurations and the diffrence in phase angle betwen
them(HV,LV).

FOR EXAMPLE.

a wye HV windings and delta LV widing with the 30
degree lead is denoted as Yd11.

In an ideal transformer no load primary current I0 A lags behind V1 by 90 degree B is in the phase with V1 C leads V1 by 90 degree D lags V1 by 45 degree

1 Answers  

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show the physical connection and phasor diagrams of 1: DZO 2: Yd1 3: DZ6 4: Yd11 5: YZ11

0 Answers  

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how can i get an electrical c-certificate?

0 Answers   Wartsila,

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I need to calculate the Battery bank back up for below configuration:- UPS - 120 KVA Battery Bank - 200Ah Volt of each cell - 12 V Total No of cell - 34 No's Can you please help me to get the battery back up time for above configuration...? along with formula

1 Answers   Wipro,

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how to meas-our losses for L.T & H.T

0 Answers  

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What is Earth Fault and Over current Fault.

1 Answers  

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30 kVA and voltage 380/220VAC how to find out kA?

5 Answers  

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Application wise, where we should use AC motors and where we should DC motors?

1 Answers   Nespak,

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In brushless excitation system how generator field current is measure even if the slip rings are absent?

3 Answers   Adani,

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HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?

0 Answers  

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what is effect of unbalaced load -- say R 15A, Y 25A, B 10A

4 Answers   TransWorks,

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How to design harmonic filter at the project stage without nowing the harmonics levels

0 Answers  

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