primary voltage การใช้

• This voltage is in phase with the primary voltage.
• The primary voltage is applied across two of the terminals, and the secondary voltage taken from two terminals, almost always having one terminal in common with the primary voltage.
• The primary voltage is applied across two of the terminals, and the secondary voltage taken from two terminals, almost always having one terminal in common with the primary voltage.
• As in a two-winding transformer, the ratio of secondary to primary voltages is equal to the ratio of the number of turns of the winding they connect to.
• Vacuum tube coils typically operate with plate voltages between 1500 and 6000 volts, while most spark gap coils operate with primary voltages of 6, 000 to 25, 000 volts.
• The substations stepped down the 13, 800 primary voltage to 480 / 277 volt secondary service, and then further down to 208 / 120 volt general power and lighting service.
• It is not directly a power loss, but results in inferior voltage regulation, causing the secondary voltage not to be directly proportional to the primary voltage, particularly under heavy load.
• The substations lowered the 13, 800 primary voltage to 480 / 277 volts, and the voltage was then further lowered to 208 / 120 volts for general power and lighting services.
• So does that secondary current act backwards to create more primary voltage by induction or have i got it wrong ?-- talk ) 16 : 32, 24 February 2012 ( UTC)
• At HYPRES, the first company he founded 1983, many of the superconducting inventions became commercial products including the Picosecond Signal Processors, PSP 1000 and the PSP 750, the Primary Voltage Standard and many others.
• Working with closely with National Institute of Standards and Technology, HYPRES developed became the sole commercial supplier of both 1-volt and 10-volt primary voltage standard chips and systems, made with all refractory niobium ( Nb ) technology.
• For current to flow " out " of the switch-end of the primary, the primary voltage at the switch end must be " positive " relative to its other end that is at the supply voltage V b.
• But this represents a primary voltage " opposite " in polarity to what it was during the time when the switch was closed : during T closed, the switch-end of the primary was approximately zero and therefore negative relative to the supply end; now during T open it has become positive relative to V b.