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Why a dc generator gives result during two different condition,- 1)separately exited gen.- Eg=110 V, field current=0.25 A. 2) self exited gen.- Eg=30 V, field current=0.025 A.
1 3157During speed control of dc shunt motor with flux control methode,when armature voltage is constant, How can it possible to increasing the armature current?
1 3161Why we use two wattmeter during block rotor test and no load test of 3phase induction motor? And how can we understand the neat power requirement of from this test?
2 10746given data are load current & power factor cable core size? plz any one update the calculation formula
1893i installed 100kva ups. what KVA genset they should provid in input side? plz any update formula or ans with reason.
2341Hi,My name is ranms i want to know the machine vibration related problems.post me if any body knows. 1) Possible causes of machine horizontal vibration high? 2) Possible causes of machine vertical vibration high? 3) Possible causes of machine axial vibration high?
1 2969As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.
1849Post New Electrical Engineering Questions
1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india
What are unstable systems?
What is the formula for selecting the cabels according to load? How to calculate what sq.mm cabel to be used?
mention hazard experienced during installation
What are the main parts of central chiller plant? Explain the function of each stage.
what is the illumination level required for child play area?
Why are the cores of large transformers built up of circular transactions ?
Can anyone explain me about the RLC based Impulse high voltage generator and how to and operation of Series resonant High voltage reactor...?
What is mean by Sensitive Earth fault & what are the effects
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.
How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.
wht is embedded systems? what is new inthis field?
Is a d.c.compound motor is use as a booster? how?
Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.
What is use of starter and choke in tube light
