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What is the advantage of trefoil formation of HV power cable?
trefoil arrangements of same phase mimimise stray loss
Can you convert a three-phase motor to a single-phase motor?
Use only one of the legs (L1-L3), and the neutral. Some three phase circuits don't have a neutral. If that is the case, then you cannot run single phase.CommentYou don't need a neutral, providing the voltage is appropriate, you can get a single-phase supply by connecting the load between any two lines.
What causes 3-phase motors to heat up?
It is not only 3 phase motor, but every electrical device heats up. The reason is the current flowing through the windings causes the I^2*R heat loss. Apart from that, in case of an induction motor, the alternate cycle of magnetization and demagnetization of core material causes the hysterisis loss and eddy current loss. Last but not the least, there are friction and windage losses for a rotating electrical machine. All of these losses are dissipated as heat energy and hence the machine heats up.
Why 3 phase is 440 volts why not 660?
Because 3 phase voltage is not algebraic sum it is the vectorial sum. Vijaye Raj A.I.E.M.D
Why is 3-phase important?
Because 3-phase is the way electric power is generated, transmitted and distributed. The 3-phase format is broken down into single-phase supplies only at the consumer level, so that you might be on red phase while your neighbour on one side is on yellow and the neighbour on the other side is on blue. 3-phase is used all over the world for all significant amounts of electric power because it can be distributed using less cable and therefore less power-loss. Three single-phase supplies need 6 wires, while a 3-phase supply takes advantage of the phasing to use only 3 wires for the same power. Each pair of live wires acts as the return wire for the other wire in a symmetrical and balanced system.
What is the losses of three phase induction motors?
Iron Loss Copper Loss Frictional loss
In which phase of cycle is bone loss the greatest?
Menopause
What is the loss in thermal energy causing a gas to phase directly into a solid?
ik
What is the acute phase of adult schizophrenia?
In the acute phase, the patient has an overt loss of contact with reality (psychotic episode) that requires intervention and treatment.
What is the voltage of other two phase of 3 phase system when One phase is open?
If you mean 'phases' and not 'lines', then the loss of a phase has no effect on the voltages provided. You will still obtain three voltages, displaced from each other by 120 degrees.
A single-phase transformer when supplied from 220v50hz has eddy current loss of 50wif the transformer is connected to a voltage of 330v50hzthe eddy current loss will be?
112.5
What is the south beach phase 1?
The South Beach Diet Plan Phase 1 is the beginning of the Diet. Phase 1 is the most limited time of this diet. This phase is constructed to get your blood sugar steady, remove cravings and amp up your efforts at weight loss. Phase 1 concludes after 2 weeks.
How do plants survive the loss of their leaves as a main photosynthesising organ?
They have special features like having a dormant phase, storage of carbohydrates etc. during loss of their leaves
In which phase of the life cycle is bone loss the greatest?
Bone loss is greatest during the postmenopausal phase of life, particularly in women. This is due to hormonal changes that occur during menopause, leading to a rapid decline in bone density. Regular weight-bearing exercise and adequate calcium and vitamin D intake can help reduce the risk of osteoporosis during this phase.
Shock Your Body into Weight Loss During Phase One of the South Beach Diet Plan?
The popular South Beach Diet advocates eliminating simple carbohydrates and "bad" fats from the diet, and replacing them with complex carbohydrates and "good" fats. Phase one of the diet serves to shock the body into weight loss by completely eliminating all sugar, processed carbohydrates and other high-glycemic index foods. The South Beach Diet phase one lasts two weeks and is the most strict of the three phases. Phase two continues for as long as you wish to lose weight, and phase three is the maintenance phase which you should follow for life after you have reached your weight loss goals.
What is the first phase of hemostasis in which vasoconstriction occurs?
The first phase of hemostasis is vasoconstriction, which is the narrowing of blood vessels to reduce blood flow to the injured area. This helps to limit blood loss and initiates the process of forming a blood clot.
What is the advantage of trefoil formation of HV power cable?
trefoil arrangements of same phase mimimise stray loss
