earth fault meaning in Hindi

Examples

1. Wellington, a city of 400, 000 people, sits across several earth fault lines and regularly experiences earthquakes.
2. Almost any fault would instead be a single-phase earth fault which does not produce a large fault current.
3. The purpose of a zigzag transformer in this application is to provide a return path for earth faults on delta-connected systems.
4. More importantly, a flashover across arcing horns produces an earth fault resulting in a non-linear resistors known as varistors can replace arcing horns at critical locations.
5. The resistance path is the total resistance back through the supply transformer; to measure this an engineer will use an " earth fault loop impedance meter ".
6. A neutral current transformer is used as earth fault protection to measure any fault current flowing through the neutral line from the wye neutral point of a transformer.
7. Until the 1950s, isolated ground domestic mains supplies tended to have no ELCB, and too high a ground impedance to blow a fuse if a live-to-earth fault occurred.
8. IEC defines a SELV system as " an electrical system in which the voltage cannot exceed ELV under normal conditions, and under single-fault conditions, " including " earth faults in other circuits ".
9. IEC 61140 defines a PELV system as " an electrical system in which the voltage cannot exceed ELV under normal conditions, and under single-fault conditions, " except " earth faults in other circuits ".
10. If one or more phases fault to earth, the voltage applied to each phase of the transformer is no longer in balance; fluxes in the windings no longer oppose . ( Using symmetrical components, this is " I " a0 = " I " b0 = " I " c0 . ) Zero-sequence ( earth fault ) current exists between the transformer s neutral to the faulting phase.