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In pakistan appliances work on 220v at 50hz and in us appliances work on 110v at 60hz what is basic theory to explain it
1 4025As per standard, transformer body earthing and other Equipment earthing (Equipment earthing) did not connect. but in LT side termination we are doing metal glanding in both side Transformer to PCC Panel through armoured cable, now X'mer body earthing and PCC Pane earthing (Equipment earthing) both are connect.is this safe for X'mer or other equipment?
1769Assuming that a dedicated neutral earthing transformer is provided for each GT generator, when the two generators are running in parallel, has consideration been given that the earth fault current from one generator stator winding be split between the two neutral earthing transformers? If so, what adverse impact will this have on the operation of the 59N and 27TN devices?
1658Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity
NCC,
1884Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??
3378Post New Electrical Engineering Questions
I want to know the 'Test voltage' for Tandelta testing of 3.3 / 6.6 / 11 KV Motors. Please explain
What are the no-load losses for the 11000/415V transformer with the following rated capacity? 1.1500 kVA 2. 2000 kVA 3. 2500 kVA 4. 3000 kVA
1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?
how circuit breaker work.. what is the operations taking place inside a circuit breaker when an overcurrent occurs... is it similar to fuse?
With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.
If any one's require of phoenix contact like( relay , termilnal block , surge protection device ) , product please contect me 09878206357 chetan verma
How much weight an electrical engine can pull??
What is the use for cable entry in control room?
wat is d diffr btw shunt coil and trip coil in VCB?
sir i want previous entrance exam papers for written test
Differentiate between induced emf and self inductance?
stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate
any idea abt REVERSE METERING concept.........?
What is Plank's Law?
1.What will be stored in online ups EPROM IC?
