Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com

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why in a transformer frequency remains constant? if frequency is changing what will happen?

5 Answers  

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why the altrnator(AVR) not showing the any voltage after making the new winding and insulation?

1 Answers   Avon,

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what is inverter and converter

7 Answers   Shrishti Power Technologies,

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Explain why machinery used on a.c supply is usually rated in KVA instead of KW?

10 Answers   EEE, Mtandt,

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When Alarm report at LED,Alarm volatge is 11-13 Volt But LED is of 3 volt.then why not it burn?

0 Answers  

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ro plant grundfos bm30type pump.we start the pump using siemens 3rw 4423-1bc44, 30kw soft starter. bur its failier frequently. so we planed to change the dol starter. sp please tell me any budy its possible or not翿შ†

1 Answers  

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DERIVE AN EXPREION FOR MAXIMUM POER TRANSMISSION, WHAT ARE ITS APPLICATIONS.

0 Answers  

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How to find HT side and LT side(of a transformer),with the help of a voltmeter?

1 Answers   Odisha Power Generation Corporation OPGC,

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why motor run slow speed in star connection?explain how?

3 Answers  

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How can we checked Killo Watts of Motor & Alternator?

0 Answers  

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Latching current is slightly less than ?

2 Answers  

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