ground current การใช้

• Primarily, residual or ground current detection is used to detect possible fault conditions.
• That forces the ground currents to divide between the input and output sides as planned.
• :Ideally ground current is zero.
• This configuration causes most ground currents to cancel, reducing shock hazards and interference with communication lines.
• The presence of high frequency ground currents can cause sparks, arcing and electrical shocks and can damage bearings.
• Because later references refer to earth connections, it appears that Stubblefield subsequently switched to using ground currents instead of induction.
• Because the signal is DC balanced the application can use AC coupling, which eliminates the ground current problem between data source and destination.
• ;Crosstalk : The introduction of noise ( from another signal channel ) caused by ground currents, stray inductance or capacitance between components or lines.
• The area of the counterpoise around the base of the antenna is often covered with copper screening, to shield the ground to reduce ground currents.
• Since the bulk of the transmission line has low resistance attachments to earth, excessive ground currents from shorts and geomagnetic storms are more rare than in conventional metallic-return systems.
• Amendments to VDE 0126-1-1 and IEC 6210 define the design and procedures needed for such systems : primarily, ground current measurement and DC to grid isolation tests.
• The first official SANFL night game was played at the oval on 21 April 2011 with the Panthers defeating Port Adelaide in front of the grounds current night attendance record of 2, 700.
• The grounds current capacity is 10, 000 well below the record attendance OF 23, 500 set on 22 May 1949 when it hosted the French rugby league championship final between AS Carcassonne and Marseille XIII
• Sometimes the ground braids are only connected to earth ground at one end of the line, to avoid ground current travelling over the braid and having a " ground loop . " talk ) 17 : 14, 5 August 2009 ( UTC)
• When a CME impacts the Earth's magnetosphere, it temporarily deforms the Earth's magnetic field, changing the direction of compass needles and inducing large electrical ground currents in Earth itself; this is called a geomagnetic storm and it is a global phenomenon.
• These statistics do not reflect the difference between direct strikes, where the victim was part of the lightning pathway; indirect effects of being close to the termination point, like ground currents; and resultant, where the casualty arose from subsequent events, such as fires or explosions.
• The lights have seen an increase of attendances at the ground with the first game under lights attracting the grounds current record night crowd of 6, 133 for the opening game of the season with West defeating North Adelaide 14.19 ( 103 ) to 4.7 ( 31 ).
• The main benefits of fiber are its exceptionally low loss ( allowing long distances between amplifiers / repeaters ), its absence of ground currents and other parasite signal and power issues common to long parallel electric conductor runs ( due to its reliance on light rather than electricity for transmission, and the dielectric nature of fiber optic ), and its inherently high data-carrying capacity.