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What is the role of the 50 STUB protection at a GIS 400KV substation with SIEMENS protection relays?
2111In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.
1661We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?
1726Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?
1476CT Ratio of a energy meter connection is Red Phase : 100/5A, yello Phase : 50/5A & Blue phase : 100/5 A what is the overall Multiplication factor
1715I use 20 nos led tube 4feet, in pathway 100mtr approximate, so what size cable i use for lighting
1525What is the difference between security constraint unit commitment and security constraint optimal power flow?
1762Post New Electrical Engineering Questions
What do you mean by passive circuit elements and why these are called passive?
What is the selection process of breakers. Can any one please give a formulation on same?
Define conversion efficiency of a power amplifier. What is its value for class c power amplifier?
what is the transiant condition in alternator? and how it can be prevanted?
what is the difference between oil surge relay and buchholz relay.
What is meant by Low Resistance Cable and High Resistance Cable.
What current flows in the transformer primary when its secondary is open?
state basic meaning of 'INDUSTIAL AUTOMATION'?
What is the difference between AC and DC injection methods for rotor earth fault protection
how to test the turn ratio of 3 phase transformer using volt meter shoe the curcit diagram.
why we use single core 630mm2 cable for transformer secondary side
What about electrical Units. discrive in detail
what is the id1 & id2 setting in differential protection relay of CSPC?
What is the relationship between voltage,current & frequency?
The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?
