what is the meaning of DY-11 Z-5%

1 Answers  

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i have 400/230v transformer and didnt done the neutral eatrhing. i connected one lamp to one phase and neutral to the earth. but the lamp is not glowing. again i connected neutral to earth and repeated the same. then the lamp is glowing. in the first condition i tested with a line tester also, at that time the tesrer is glowing what is happening i dont know can any one help me?

1 Answers  

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what is motor

6 Answers   HBL Power Systems,

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Why have to use copper cable for local isolator to motor ?

0 Answers  

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MCCB 400 Amps 50KA 430Volt AC What is mean by 50KA

16 Answers  

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1)What will happen when 240 VDC supply is connected to 240VAC supply(DC supply +ve is connected to phase of AC supply & DC supply is to neutral of AC supply). 2)Also what will happen when 240 VDC supply is connected to 240 VAC supply in reverse polarity as of Sr. No 1.

2 Answers  

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The Source internal resitanse Rs , When equal to Load resistance RL, the maximum transfered is of _____ % of input power?

2 Answers  

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what is mean by parallel operation of permanent magnet generators

0 Answers   PSD,

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Why induction motor is widely used in industry

0 Answers   BARC, Honda,

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EXPLAIN USE OF ROCKING ARRANGEMENT IN ELECTRIC HEATING?

0 Answers  

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why we short ckt the secondry vo5tage/ winding in transfr and motor?

2 Answers  

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why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)

0 Answers  

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