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Define Cables - Generation and Absorption of Reactive Power?
It is well known that the shunt capacitance of the cable is very large as compared to that of an overhead line. This is because the phase conductor of a cable is very close to the outer earthed metallic sheath. Hence, cables are generators of reactive power. For example, a 275 kV, 240 MVA cable produces 10 to 12 MVAr per mile and a 33 kV cable produces 0.2 MVAr per mile. Consequently they are not used for long a.c. transmission.
Discuss electrical properties of insulating materials. Electrical properties of an insulating material are As Follows: Insulation resistance - It is the property, through
how back emf is produced in transformer?
Systems such as those encountered in mechanics, thermodynamics, and hydraulics can be represented by analogous electric networks, from the response of which the system characterist
CPI Compare Immediate Instruction The 8 bit data specified in the instruction is compared with the contents of the accumulator. The comparison is done by subtracting
Q. How does current flow through the channel of a JFET after pinch off? It is seen that above the pinch off voltage at a constant value of VDS (saturation drain current, ID inc
Q. (a) Consider the capacitor - input filter circuit of Figure and obtain the z-parameters for the circuit. (b) Determine the transfer function V 2 /V 1 when I 2 is zero.
Explain Commercial ADCs and DACs? Analog interface chips (AICs), like those in the Texas Instruments TLC32040 series, consist of all type of the analog components that explaine
what is tunneling effect ? With calculation.
Importance of Voltage Quality - KPI The voltage quality has a growing economic impact on the customer and the network operators. The costs related along with "lack of quality"
Connect the TTL output (square wave) of the "Audio Oscillator" to the "Scope Selector". Adjust the frequency of the square wave to 2 kHz. Observe and record the time domain pict
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