Tenders are invited for Development of standards for determining the value of the induced voltage
on the wires (cables) overhead line passing near the HV 6 kV and above or near the contact network of electrified railway AC, with different schemes and their grounding in the absence of grounding" for the needs of "IDGC of the South" Expiration date:03/20/2015 10:00
When switch 'S' is on, the primary winding of the transformer gets connected to the input At this time the diode 'D' connected in series with the secondary winding gets reverse biased due to the induced voltage
in the secondary.
This leads to a situation where using only the maximum induced voltage
is not sufficient to obtain the X factor.
Subsequent coverage includes ground resistance, general hazards, induced voltage
due to electric and magnetic fields, de-energized and live-line work, arc flash, and atmospheric discharge, among other topics.
The output of the detection coil is dominated by the direct induced voltage
from the excitation coil, and the voltage variation caused by the defect-induced eddy current change is buried in the large baseline signal at the same frequency.
To raise the electromotive force to a measurable value, 10 turns of winding was added to the given contour and the dimensions of the contour were chosen so that the induced voltage
could be measured with a millivoltmeter.
The peak value of the induced voltage
is proportional to the speed of the piston, the flux density of the pole and the air gap.
a] is armature inductance, E is induced voltage
The survey wire should be reconnected to the pipe wherever possible to minimize the length of wire along the ROW and reduce the induced voltage
F] is the excitation flux (referred to the induced), ud, uq, id, iq are the induced voltage
and currents components on the two axis, i'F is the excitation current, Mel is the electromagnetic torque and J is the axial inertia moment referred to the brake's axis.
He then looks at various protection methods, shunt capacitor bank maintenance, system impact issues such as harmonics and induced voltage
on the control cables, and economic analysis applicable to the power factor compensation.
120-degree rectangular wave motor control is realized by an input signal line that measures the induced voltage
4 of the motors and three-phase motor output.