Step Voltage

Step Voltage

 

a voltage that is caused by a current flowing in the ground or in a conducting floor and is equal to the potential difference between two points on the surface of the earth or of the floor that are separated by a distance of one pace. The magnitude of a step voltage depends on the current and on the resistivity of the ground or the floor.

Hazardous step voltages may be produced near the grounding conductors of electrical installations when a ground fault occurs. Therefore, permissible values of the resistance of grounding conductors and the resistivity of the ground are set by standards.

References in periodicals archive ?
Therefore, the step voltage of BFCL controller is high voltage signal to make the IGBT switch on.
10 shows an oscillogram of the output voltage of B[??]H--75 when a step voltage pulse is applied to its input.
The results of the simulation and calculated values of [P.sub.st] are shown in Table I, where a) N/A - not applicable--no flicker due to continuous open walve, b) The [P.sub.st] is not possible to assess in the simplified way, due to step voltage changes.
###Este###Tolerable step voltage for human with 70###Duration of fault current for sizing ground
Test routines include Surge Comparison, DC Hipot, Step Voltage, Insulation Resistance (Meg test), Dielectric Absorption (DAR), Polarization Index (PI), Low resistance (Ohms), Impedance (Z), Phase Angle, Inductance (L), and Capacitance (C).
The touch and step voltage produced in a fault condition have to be at safe values.
The DC dynamic pull-in step voltage for this case without considering damping coefficient and Casimir effect is 3.11 V.
As the load decreases from 400 mA to 1 mA, a step voltage 50mV of output voltage is detected units and voltage [V.sub.Q] of the SR latch transmits a low signal to turn off the large power MOS [M.sub.Pp2] and [M.sub.Np2].
The coulombs function of an electrometer can be used with a step voltage source to measure capacitance.
In this paper, a lattice diagram [14, 15] that is used to illustrate the process of the injected step voltage generated by TDR propagating in a nonuniform transmission line is studied.
The initial voltage distribution for a equal to 6, 12 and 18 for step voltage input at line terminal with neutral end of winding grounded is obtained using the equation [1]:
Key words: Grounding system, touch voltage, step voltage, computer modeling, grounding resistance.