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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 ?
1644Two 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 the use of the circle diagram
Name the component u would expect to find in a switchgear assembly?
how to calculate the change over time for star delta starter for different KW motor?
i applied for the ap transco please forward the freqventley asked QA
primery try cell?
Why neutral is not used in three phases dol starter
If breaker is undefined position, first step to do.
Can any body tell gulf interview question for experienced electrical engineer ?
Classify milling machines.
what is the setting of locked rotor in HT motor ? (answer expecting in percentage)
A double circuit with dog conductor 66KV Transmission line from wind farm evacuation to feeding substation having capacity of 25MW for transmission. Can same transmission network be considered for further expansion of Power & how much in MW. If we need to expand next 10-15 MW more will there any augmentation is required in transmission network? Kindly reply asap.
Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?
how to determine the cable size...pls explain me with the formula taking particular load....does the factors like impedance & short circuit rating influence the cable size, if so how....
why co incidence factor considered in transformer sizing?
WHAT IS SPEC OF CLEANROOM MOTOR AND LIGHT FITTINGS?
