What is the role of the 50 STUB protection at a GIS 400KV substation with SIEMENS protection relays?
1470In 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.
1120We 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 ?
1083Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?
963CT 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
1192I use 20 nos led tube 4feet, in pathway 100mtr approximate, so what size cable i use for lighting
1029What is the difference between security constraint unit commitment and security constraint optimal power flow?
1205Post New Electrical Engineering Questions
why we use condenser in the thermal power plant, althrough the same vapour will be again heated
Dear sir, How to calculate 3.5 core pvc aluminium armoured cable meter wise carrying amps rating.Please give the solution with a good example.
how cables go in and come out for distribution from the feeder pillar box?
What is an alternator impedance value?
what reason of line current and phase current in star connection and line current and phase current not equal in delta connection?
difference between power surge and switching transient
why it is so called as xlpe(cross linked poly ethyline) cable?
What is the difference between type1 and type2 relay protection co-ordination for motor feeders
Define bibo stability.
Give atleast 20 alternating current apparatus and devices.
what is the significance of cabability curve of alternator
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why most of junction box vendors providing T5/T6 Temp class jb's for T3 area any special reason?
How many types of protection relays are there based on the characteristic?
in dc series motor if field wdg is shorted then
