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Why is there a harmonics when there is no load?
Harmonics is electric current or voltages that are part of the power system as a result of nonlinear electric loads. If there is no load and a harmonic is present it can present because of a rectifier in the system.
Why power quality is needed?
power quality means to have harmonics free transfer of power in the system as harmonics causes fluctuations in voltage and current which are not good for the equipments at home.so in order to maintain a constant voltage profile we need a good power quality
What are the two major parts of a power system?
Power source & distribution system.
What is a system that links electricity produced in power stations to deliver it to where it is needed?
Power Systems or Transmission & Distribution
Is Power stored in distribution system?
No. It's transported through the distribution system to load centers.
What is radial distribution system?
There are 3 type of power distribution namely loop,network and radial.Radial distribution is the type of power distribution where the power is delivered from the main branch to sub-branches then it split out from the sub-branches again. it is the cheapest but least reliable network configuration.
Will the fifth harmonics will flow into neutral line in a 3phase balanced system?
for a balanced system ? no, cause 5th harmonics has purely negative sequence in balanced system, only zero sequences can flow. Unless the system is unbalanced, then only the 5th harmonics zero sequence component will flow in the neutral.
What are harmonics and how are they produced?
Harmonics are integral multiples of some fundamentalfrequency that, when added together, result in adistorted waveform.Harmonic currents and voltages are created by non-linearloads connected on the power distribution system.Harmonic distortion is a form of pollution in the electric plantthat can cause problems if the sum of the harmonic currentsincreases above certain limits.
Distribution transformer vs power transformer?
Power transformers are step-up or step-down transformers used in the electricity transmission system, whereas distribution transformers are step-down transformers used in the electricity distribution system.
What system of government is not defined by a geographical distribution of power?
Confederate
Which system of government is defined by a geographic distribution of power?
Unitary
Which system of government is not defined by geographic distribution of power?
Unitary
