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can we use ps class in combination with protection class in differential protection and over current protection.
1 2845What is the maximum current carrying capacity for both copper and aluminium cables for 1sqmm?
2 4752HOW TO CALICULATE THE LEAD ACID BATTERY AH AND HOW TO FIND THE 1.2KVA UPS BACKUP @ 1000WATTS LOAD?
2 4438WE HAVE THE DC RECTIFIER 1500A, INPUT VOLTAGE IS 3 PHASE. HOW TO CALICULATE THE LOAD? 3 PHASE SIDE EITHER dC SIDE. PLEASE SUGGEST ME
1883I HAVE 2 nO'S OF SYSTEMS, HOW MUCH UPS CAPACITY REQUIRED ALONG WITH 400WATTS ANOTHER LOAD? PLEASE GIVE THE FORMULA?
1 3713Post New Electrical Engineering Questions
what types of electrical & mechanical test conducted in switchyard?
What does the letter CTNM in negative phase sequence relay means?
How to calculate energy stored in an inductance?
Explain marx circuit.
how to calculate the formula of cable size if motor kw is given
A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.
What is gross error?
What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )
In how we connect watt meter for open & short circuit test of a single phase transformer.
What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?
Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.
How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?
how many synchronous motor are there in any power plant
If short circuit ratio is high is it bad or good for a machine then tell the reason...
why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.
