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What is the role of the 50 STUB protection at a GIS 400KV substation with SIEMENS protection relays?
2039In 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.
1605We 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 ?
1643Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?
1414CT 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
1653I use 20 nos led tube 4feet, in pathway 100mtr approximate, so what size cable i use for lighting
1475What is the difference between security constraint unit commitment and security constraint optimal power flow?
1710Post New Electrical Engineering Questions
What is MSL designation of a motor and same may be provided in details.
What is mean by Sensitive Earth fault & what are the effects
what are the ''pitting rings''and how cn they be controlled in a series generator
how could we know the size of cable by physical view?
How to test REF relay testing for LV panel as per Kahramaa standard?
What are the protections for safe running of electric generator?
what is saturation kit?which use above 15 kw motors panel side.
Difference between On Line capacitor and Station Type capacitor.
At what speed 1 HP motor can run an electric car of weighing 400 kg?
what is mean by transition resistance of transformer?
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?
We have 90mX100m hangar with 16 no.of supporting pillar. It is required to provide power supply on all pillars. what is suggested earthing scheme for hangars.
What is meant by Low Resistance Cable and High Resistance Cable.
What is earth?
what the function breaker failure scheme, how is it operated
