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What is the effect on Power factor and capacitor when your company load is more than 70 % of welding transformer
1819How to protect a Dosing pumps/any sensitive equipment (single phase) from surge protection inside a food factory.
1747How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.
1809Multi-step core is used in transformer to: A) Increase the output B) Decrease the cost of core material C) Decrease the cost of copper D) Increase the efficiency
1 9192Does outdoor isolator loose connection cause short circuit current in that circuit? if yes then how ??
1700i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.
SCM,
1922I have a reading off 1.5ohms at my mem my main c/b is rated at 40/6 amps in a domestic house and i was told to change it to a b curve c/b is this ok
1670Post New Electrical Engineering Questions
How can we increase the capacity of Energy.?
Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?
Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV
What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current
what about electrical pannel.? What is meant by plc pannel.?
What is meant by impedance? difference between high & low impedance ?
How to design pavement quality concrete by using C.R.C.P Method
What are the necessary solutions needed to be carried out on a malfunctioned earthing mechanism of a VACUUM CIRCUIT BREAKER.(TAMCO)
what is meant by flywheel and its role in retardation test
How is the percentage impedence of a transformer fixed at design stage???
Define what is the function of anti-pumping in circuit breaker?
1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?
why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?
Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.
What is the two pole structure?
