What is tan delta & PPM in transformer? and whats its IS value?

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The objective of connecting a resistance and capacitance across gate circuit is to protect the SCR against

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This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.

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During speed control of dc shunt motor with flux control methode,when armature voltage is constant, How can it possible to increasing the armature current?

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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,......?

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How LT megger works ?

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what is idmt relay

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can we use heat gun instead of gas torch in 11kv termination kit. I mean can both sources provide enough amount of heat to ensure the uniform shrinkage of sleeve.

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What is the difference between "Earthing" and "Neutral"?

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What is the Powar consumption of fan low speed to full speed? is it same ?

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what is the working of hydrent system.

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Differnce between Analog & Digital

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