In VVVF drive voltage is varying in accordance with frequency.My question here is How much will be the voltage in the inverter side if the frquency is set for 10Hz ?

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what main difference betwenn invetter & ups & major difference

2 Answers   ABB,

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why effective resistance should be more than static resistance in transmission line?

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in 33/11kv stepdown transfomer, transformer will stepdown to 11kv & remaining 22kv where it will go..

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why transformer rating in always in KVA ?

4 Answers   Horizon Computers,

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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

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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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what is differentila pilot supervision in the incomer control panel in the power station?

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We have laid the single core Armoured cable 7 nos ( 2 each phase & 1 neutral ) to cater our electrical load . the issue is though we have Glanded the cable both the end also givan the earthing to the panel both the end we are facing a heavy sparking at the gland side. what could be the reason.

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Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??

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how we arrange the hv side with delta connection in case 33/11kv of transformer.

0 Answers   Jindal,

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what is mutual induction principle?

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