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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.
1607We 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 ?
1645Two 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
1476What is the difference between security constraint unit commitment and security constraint optimal power flow?
1710Post New Electrical Engineering Questions
if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .
how we provide neutral earth on synchronising panel as per electrical standards?
Why the moulded plug comes with domestic appliances instead of assembled plug like anchor, Vinay 5/15 A.
In hydel power plants, L.A's, S.C's are placed inside the control panel boards. what is the purpose? [already the total body was earthed to ground.]
Write down the name of 2 lady Bir Pratin of Bangladesh
why dimmerstate always connected in star connection? what will happen if it connected in delta?
how could we know the size of cable by physical view?
RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV is ok ,but haw to calculate the KA rating?
2. Modify your design in question 1.a so that the circuit works according to the following function table X Y F 0 0 Clear 0 1 No Change 1 0 Parallel Loading 1 1 Count 3. Design a circuit that detects the pattern 010 in a serial input X considering: 3.a Overlapping 3.b No overlapping
How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?
Why using synchronising methed in DG's sets?
what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?
A 11KV, 1200 A breaker combination fixed in a cubicle for HT motor.Is normally for 11 KV motor fuse is using? if Yes, What range fuse is required?
why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?
ht side line to earth voltage
