What is ACCC wire?

1 Answer

Aluminum Conductor Composite Core
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Answer : Current runs from the transformer, through the protective device, through the load and back through the protective device (if on RCD).  If the protective device is only a CB the current passes ... the circuit will operate correctly but this is an unsafe practice and does not meet the standards.

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Description : The function of steel wire in ACSR conductors is (A) To take care of surges. (B) To reduce corona. (C) To reduce inductance. (D) To provide additional mechanical strength

Answer : The function of steel wire in ACSR conductors is To provide additional mechanical strength

Description : A fuse wire should have :  (A) Low specific resistance and high melting point (B) Low specific resistance and low melting point (C) High specific resistance and high melting point (D) High specific resistance and low melting point

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Description : For a round wire, the approximate value of fusing current is given by

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Description : Nichrome wire is an alloy of?

Answer : Nichrome wire is an alloy of nickel and chromium.

Description : If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes?

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Description : The resistance of a few meters of wire conductor in closed electrical circuit is?

Answer : The resistance of a few meters of wire conductor in closed electrical circuit is practically zero.

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Description : A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span?

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Description : How is electricity passed through a wire?

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Answer : Black but I think it depends with the place.

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Answer : Aluminum conductor steel rainforce

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Description : The ‘transportation delays’ occurring in distribution system are detrimental to stability because they produce (a) attenuation (b) phase lag (c) both (a) and (b) (d) transients 

Description : The X/R ratio for distribution lines is:

Answer : Inductance and resistance

Description : For a 66 kV line having span of 200 meters between towers the approximate sag will be 2 m. If the span is double the sag will be:  (A) 1 m (B) 2 m (C) 4m (D) 8m

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Answer : Series capacitors on transmission lines are of little use when the load VAR requirement is small.

Answer : The voltage regulation in magnetic amplifier type voltage regulator is effected by varying the reactance.

Answer : When a conductor carries more current on the surface as compared to core, it is due to skin effect.

Answer : Overhead system can be designed for operation up to 400 kV.

Answer : The underground system cannot be operated above 66 kV.

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Description : Is Aluminium a good conductor of electricity?

Answer : Yes aluminium is a conductor and it is a good conductor of electricity. But copper have better conductivity as compare to aluminium.

Description : Why ACSR conductor is used for overhead lines?

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Description : How electricity is transmitted and distributed?

Description : How electricity is distributed?

Description : About trnsformer

Answer : Acc to Ohms law V=IR but it is only applicable when our resistance R is constant, as in case of transformer we take impedence which is equivalent to resistance is not constant it varies with system parameters that why Ohms law not applicable in case of transformer

Description : The place where all cable of wire were join together is?

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Answer : Automatically the resistivity will increase as they are the factors affecting the resistivity 

Description : What is the resistance of a 160 m wire with a uniform diameter of 0.28 mm, if the specific resistance is 12.32 μΩ-cm? A) 3.2 Ω B) 3.2 μΩ C) 0.8 Ω D) None of these

Answer : What is the resistance of a 160 m wire with a uniform diameter of 0.28 mm, if the specific resistance is 12.32 μΩ-cm? A) 3.2 Ω B) 3.2 μΩ C) 0.8 Ω D) None of these

Description : What is the number of turns of wire needed to provide a potentiometer with a resolution of 0.05 percent ? (a) 200 turns (b) 2000 turns (c) 20 turns (d) 20000 turns

Answer : B) 2000 turns

Description : What is resistance wire made of?

Answer : Resistance wire is made up of Nichrome .

Description : The shape of a magnetic field around a long straight current carrying wire is: w) elliptical. x) square y) varies depending on the magnitude of the current z) circular

Answer : ANSWER: Z -- CIRCULAR

Description : Ten Coulombs of charge flowing through a wire per second is equal to: w) 100 Amperes x) 10 Ampere y) 1 Amperes z) 0.1 Amperes

Answer : ANSWER: X -- 10 AMPERES

Description : The magnetic field produced by a long straight wire carrying a current points: w) in the direction of the current x) toward the wire y) away from the wire z) circles around the wire

Answer : ANSWER: Z -- CIRCLES AROUND THE WIRE

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