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A: A power supply when designed it will have some nominal criteria and also some maximum output power available which reflect to the peak load that it can stand without burning up
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What will happen if i connect a power supply of higher current rating to lower current load?
The supply won't have to work as hard. It is perfectly acceptable, for example, to use a 1A, 12v supply to supply a 12v, .5A load. The current rating indicates the ability of the supply to dissipate heat caused by the current flowing. If the load current is above the power supply current rating, the power supply will overheat.
What is theTransformer rating in a power supply?
a power supply must deliver xxx watts to a load the transformer must match the load capabilities plus its own loss
Why can a reactive power load drop the voltage more than the active power load in a transmission line?
A load with a poor power factor draws extra current from the power supply, meaning that there will be more of a voltage-drop in the supply. As an example, if the load is 6 kW on a 240 v supply, the current drawn is 25 amps if the load has a power factor of 1. The kVA is equal to the kW. But if the load has a power factor of 0.8 it needs to draw 7.5 kVA for a power of 6 kW, which is a current of 31.25 amps, so there is more of a demand on the power supply wiring etc. The transmission losses increase by 56% with the extra current. In both cases the customer is charged for power used, 6 kW. That is why the supply companies do not like loads with a poor power factor and sometimes charge commercial customers more for a poor power factor. That in turn makes it viable for the customers to correct the power factor of the load they place on the supply.
In a parallel circuit adding more bulbs will increase?
It will decrease the effective load resistance across the power supply terminals, increase the total current through the load, and increase the total power required to be supplied by the power supply.
What determines leading or lagging power factor?
underdampedAnswerA lagging power factor describes a situation in which the load current is lagging the supply voltage. This describes an inductive load, such as a motor, etc.
How do you calculate load factor when plant machinery is connected with two supply source ie one is from govt. electricity board supply and another is from diesel generator set supply?
LOAD FACTOR = AVERAGE LOAD ÷ PEAK LOAD AVERAGE LOAD = KW-HRS (ENERGY) ÷ NO. OF OPERATING HOURS IF THE LOCAL PUBLIC ELECTRIC COMPANY CANNOT SUPPLY A CERTAIN PLANT DURING PEAK HOURS -- THE SOLUTION IS TO USE A SECONDARY PRIME POWER FROM THE ENDUSER TO MEET DEMAND LOAD. IF THE ARRANGEMENT IS 12 HRS. FOR NORMAL POWER AND 12 HRS. FOR GENSET -- THE LOAD FACTOR IS THE SAME IF THE AVERAGE LOAD IS CLEARLY DEFINED.
A generating station is to supply six regions of load whose peak loads are 15000kw ,8000kw?
To determine how much power is needed to fulfill each region's requirement, we first need to know the total peak load of all six regions combined. Total peak load = 15000 kW + 8000 kW + (four more regions' peak loads) Assuming the peak loads of the other four regions are x1, x2, x3, and x4, we can write: Total peak load = 15000 + 8000 + x1 + x2 + x3 + x4 We do not have information about the other four regions, so let's assume they each have a peak load of 10,000 kW: Total peak load = 15000 + 8000 + 10000 + 10000 + 10000 + 10000 = 58000 kW Therefore, the generating station needs to be able to supply a peak power of 58,000 kW to meet the combined peak load of all six regions. To determine how much power is needed to fulfill each region's requirement, we need to divide the total peak load by the number of regions: Power needed per region = Total peak load / Number of regions = 58000 kW / 6 = 9666.67 kW Therefore, each region needs a peak power of approximately 9666.67 kW to fulfill its requirement.
What is the power of a power supply?
power supply is a device that supplies electric power to electrical load
What are the three requirement for a complete circuit?
-- a power supply -- a load -- low-resistance material to connect the load to the power supply
What is the use of a power supply?
power supply is a device that supplies electric power to electrical load
What should you do with a power supply if it is too hot to touch?
Find out what the VA capacity of the power supply is and then add up the connected load in VA (volts x amps). If the load totals are greater that the VA power supply capacity then this is where the heat is coming from. The power supply is overloaded. Remove some of the load or get a bigger capacity power supply.
What is the conversion for rms power to peak to peak power?
RMS power is Peak-To-Peak power divided by the square root of 2.This definition, however, only holds true for a non-reactive, or resistive, load, with a power source that is truly sinusoidal.
What is power supply at room temperature called?
peak rating
What pieces of information are needed before selecting a power supply?
The main piece of information needed is the load wattage or amperage that will be connected to the power supply. Once this is known the power supply of a greater size that the load should be chosen. Also with this information the size of the wires can be calculated from the power supply to the load. Too small a wire will create a voltage drop at the load end of the circuit. This will cause under performance of the load.
Why power factor can not be unity?
Power factor can be unity. If the load is purely resistive, then the load current and supply voltage are in phase, and the load will have unity power factor.
How do you calculate Peak load on the power supply given different appliances and their ratings?
The minimum and the maximum input DC power the powersupply can have. For exemple: Imput 100 - 125 V 6 A and 200 - 240 V 3A.
What has the author Michael K Berkowitz written?
Michael K. Berkowitz has written: 'A note on production inefficiency in the peak-load pricing model' -- subject(s): Economic aspects, Economic aspects of Peak load, Electric utilities, Labor productivity, Mathematical models, Mathemicatical models, Peak load, Rates 'Production inefficiency in the peak-load pricing model' -- subject(s): Economic aspects, Economic aspects of Peak load, Electric utilities, Mathematical models, Peak load, Rates 'Power grid economics in a peak load pricing framework' -- subject(s): Economic aspects, Economic aspects of Peak load, Electric utilities, Mathematical models, Peak load, Rates
