What is the role of the 50 STUB protection at a GIS 400KV substation with SIEMENS protection relays?150
In 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.176
We 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 ?138
Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?133
what is the IPC ? & what the uses ?
How do we calculate over and under frequency tolerance from generator data?
CT 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 factor157
I use 20 nos led tube 4feet, in pathway 100mtr approximate, so what size cable i use for lighting156
What is the difference between security constraint unit commitment and security constraint optimal power flow?170
what is mean by restructuring power system?
Difference between RCCB, RCBO and ELMCB.
Y phase plates are used in transmission line??? what is there need???
1.dg on load alarm/stop alarm... 2.dg on load. piu alarm alarm kaise chek krte hai
what happen when we add mentos in cold drink?& why?
How colour picturetube works & how many year it will works.
What safety followup during kWh meter isolation
1.Z transform always lies around ? a) origin b) pole c) zero d) z=1. Multiples Mcqs which is bother me can’t find answers on internet. Some help required with little explanation . Note: this is not homework or related to any test. Thanks
how to select energy meter? have any calculation?
how to make an earthing certificate
How to Calculate KA Rating of Main LT Panel
No load tap changing transformer working
What are the protections for safe running of electric generator?
what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights
Difference between control junction box (cjb) and power junction box(pjb)?