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15. What ocurs when an intermittent gap between conductors or a conductor and ground permits current...
Homework 6 - ECE 351 The stray capacitance between conductors 1 and 2 in the Fig. below is 50 pF. Each conductor has a capacitance to ground of 150 pF. Conductor 1 has a 10V ac signal at a frequency of 100 KHz on it. What is the noise voltage picked up by conductor 2 if it is terminated with: a) RT is open b) RT-1ΚΩ and c) RT-5062. Conductor 2 Conductor 1 50 pF 150 pF 150 pF Ground...
Homework 6 - ECE 351 The stray capacitance between conductors 1 and 2 in the Fig. below is 50 pF. Each conductor has a capacitance to ground of 150 pF. Conductor 1 has a 10V ac signal at a frequency of 100 KHz on it. What is the noise voltage picked up by conductor 2 if it is terminated with: a) RT is open b) RT-1ΚΩ and c) RT-5062. Conductor 2 Conductor 1 50 pF 150 pF 150 pF Ground...
2- The Electrical System Unit 14 14.5 Premises Ground-Fault Current Path 14.8 Conductor Power Los Metal parts of premises wiring must be bonded to a low medance path designed so that the circuit protection device will quickly open and clear a ground fault 12 Conductor poner losses are directly proporional tl le lengh of the conaco and the areofthe cnrt duce the line- aused by the current is doubled, the power loss will be increased by a) True -percent al...
get the solution 1. A coaxial transmission line has inner and outer conductor radii a and b. Between conductors (a < ρ < b) lies a conductive medium whose conductivity is σ(p)- /p, where σ0is a constant. The inner conductor is charged to potential V0, and the outer conductor is grounded. (a) Assuming de radial current I per unit length inz, determine the radial current density field J in A/m2. (b) Determine the electric field intensity E in terms of...
Transient overvoltages due to restriking or intermittent ground faults can and do develop substantial overvoltages on ungrounded electrical systems with respect to ground. There have been many documented cases within industry where multiple equipment failures (e.g.-motors) over an entire 480 V system have occurred while trying to find and locate a ground fault. Measured line-to-ground voltages of 1200 V or higher in these instances have been reported. In all instances, the cause has been traced to a low-level intermittent arcing...
Now consider two very long, parallel conductors separated by a distance 3b. Conductor #1 carries current / toward the top of the page, and Conductor #2 carries current 9/ toward the top of the page. (Let / = 6.00 A and b = 1.00 cm, as above.) (6.) (0.99 point) What is the magnitude of the magnetic force per unit length (in N/m) on Conductor #1? (7.) [0.36 point] What is the magnitude of the magnetic force per unit length...
Now consider two very long parallel conductors separated by a distance 3b. Conductor #1 carries current / toward the top of the page, and Conductor #2 carries current 91 toward the top of the page. (Let / = 6.00 A and b = 1.00 cm, as above.) (6.) (0.99 point) What is the magnitude of the magnetic force per unit length (in N/m) on Conductor #1? (7.) 10.36 point What is the magnitude of the magnetic force per unit length...
A 3-phase, 60 Hz, 6 pole alternator has an air gap flux that is sinusoidally distributed. The stator has 5 slots per pole per phase and each slot contains 4 conductors arranged in two layers. The coil pitch is 12 slots. With normal excitation and rated speed, the voltage induced per conductor is 25 volts. What is the open-circuit emf between the terminals when this machine is wye-connected and all the conductors per phase are connected in series?
A 3-phase, 60 Hz, 6 pole alternator has an air gap flux that is sinusoidally distributed. The stator has 5 slots per pole per phase and each slot contains 4 conductors arranged in two layers. The coil pitch is 12 slots. With normal excitation and rated speed, the voltage induced per conductor is 25 volts. What is the open-circuit emf between the terminals when this machine is wye-connected and all the conductors per phase are connected in series?
A coaxial cable consists of an inner cylindrical conductor of radius R1 -0.040 m on the axis of an outer hollow cylindrical conductor of inner radius R2 -0.080 m and outer radius R3 = 0.090 m. The inner conductor carries current 11 = 4,40 A in one direction, and the outer conductor carries current 12-4.40A in the opposite direction. What is the magnitude of the magnetic field at the following distances from the central axis of the cable? (0 =...