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What is the Current carrying capacity of AAAC conductors?
270 amp
Why insulation is needed on current carrying conductors?
To prevent the wire from getting short circuited to ground or even to other wires.
What is charging current in transmission lines?
Any two conductors separated by an insulating medium constitutes a condenser or capacitor.In case of overhead transmission lines, two conductors form the two plates of the capacitor and the air between the conductors behaves as dielectric medium. Thus an overhead transmission line can be assumed to have capacitance between the conductors throughout the length of the line. The capacitance is uniformly distributed over the length of the line and may be considered as uniform series of condensers connected between the conductors.When an alternating voltage is applied across the transmission line it draws the leading current even when supplying no load. This leading current will be in quadrature with the applied voltage and is termed as charging current. It must be noted that charging current is due to the capacitive effect between the conductors of the line and does not depend on the load. The strength of the charging currents depends on the voltage of transmission, the capacitance of the line and frequency of the ac supply. It is given by the expressionSignificance of Charging currents:Capacitance effect (responsible for charging currents) of the short transmission lines are negligible. However they are significant in medium and long distance transmission lines.In long distance transmission lines, during light loaded conditions receiving end voltage will be higher than sending end voltage. This is because of the charging currents and capacitive effect of the line
How do you measure electrical current?
Electric current is measured using an instrument called an ammeter. The SI unit of measurement for current is the ampere, which is defined in terms of the force between parallel, current-carrying, conductors due to the interaction of their magnetic fields.
What is the difference between resistance and insulation?
Resistor is a current a insulator is a not conductive and conductors can conduct.
Does capacitance exist between two thin current-carrying conductors Explain?
The conductors of the transmission line act as a parallel plate of the capacitor and the air is just like the dielectric medium between them.A capacitor is a device used to store electrical charge and electrical energy.
Mega test value for 240 volt marine system?
There should be at least 2 meg-ohms between the current carrying conductors and between current carrying conductors and ground.
What is the difference between capacitive reactance and capacitance?
Capacitance is a physical characteristic of a pair of conductors, dependent upon the distance between them, the opposing cross-sectional areas of those conductors, and the nature of the dielectric between them, and is measured in farads.Capacitive reactance is the opposition to the flow of current of a circuit, determined by that circuit's capacitance and the frequency of the a.c. supply applied to that circuit, and is measured in ohms.
What is the relationship between current and capacitance in an electrical circuit?
The relationship between current and capacitance in an electrical circuit is that capacitance affects the flow of current in the circuit. Capacitance is a measure of how much charge a capacitor can store, and it influences the rate at which current can flow through the circuit. A higher capacitance can result in a slower flow of current, while a lower capacitance allows for a faster flow of current.
What is the Current carrying capacity of AAAC conductors?
270 amp
What is the relationship between capacitance and current in an electrical circuit?
The relationship between capacitance and current in an electrical circuit is that capacitance affects the flow of current in the circuit. A higher capacitance means the circuit can store more charge, which can impact the current flowing through the circuit. The current in a circuit with capacitance can change over time as the capacitor charges and discharges.
How do you know you have got an earth leakage?
there will be current that isn't carried by the current carrying conductors
What is the relation between amperage and capacitance?
The relationship between amperage and capacitance is indirect. Capacitance stores and releases electrical energy, affecting the flow of current in a circuit. Higher capacitance can lead to slower changes in current (i.e., lower frequency), while lower capacitance can result in faster changes in current.
What are 3 factors which affect the magnitude of magnetic force on current-carrying conductors?
Electric current, magnetic field intensity, length of the conductor, angle between the electric current and magnetic field
Why do two parallel conductors carrying current in the same direction attract each other while two parallel conductors carrying current in the opposite directions repel each other?
because of their magnetic field lines
What is a current in a circuit measured in?
ampsAnswerElectric current is measured by means of an ammeter. Electric current is expressed in amperes (symbol: A), which is defined in terms of the magnetic effect of an electric current -i.e. the force between two, parallel, current-carrying conductors.
What is phase and why it is used?
Phase is the mathematical relationship between one or more current carrying conductors from the same power source. It isn't "used" per se.
