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"main" purpose depends on who's wants it installed. There are several purposes for bus PTs - metering, relaying, indication to control centers, control (such as for a tap changer on a transformer), sync (typically breaker 1/2 and ring bus configurations). Line PT's can be used for all the above as well.
What else can I help you with?
Is a Potential Transformer a step down transformer?
PT's are typically used for metering and relaying purposes to sample the power system voltage and phase angles. The primary is at line voltage, and the secondary is typically between 66 - 120 volts (depending on primary connection, Line to Line or Line to Neutral). So yes, PT's are step down transformers.
Why pt coil is not present in three phase watt meter?
A three phase watt meter's potential transformer and current transformer are located remotely from the metering cabinet. On large size bus installations it would be impossible to take the bus bars to the meter so it is done the other way around. Leave the Ct's and Pt's on the bus bars and use smaller wire to feed the meter in a remote accessible location. The utility company requires a metering cabinet over certain voltages and amperage be accessible to the meter reader. In some installations the metering cabinet is installed remotely on the outside of the building away from the electrical room.
What is the pt transformer?
The abbreviation, 'PT', stands for 'potential transformer' (in Britain, the abbreviation is 'VT', and stands for 'voltage transformer'). This, together with a 'current transformer', falls into a category of transformer known as 'instrument transformers'. A 'PT' or 'VT' is used to reduce a high voltage to a level of voltage that can be safely read, remotely, by regular a.c. voltmeters or to provide inputs to high-voltage protection relays, while electrically- isolating the secondary circuit from the high-voltage primary circuit for the purpose of safety.
How do you align header for HTML?
ALIGN="LEFT" ALIGN="CENTER" ALIGN="RIGHT" Example: <HEADER ALIGN="CENTER">This is the header</HEADER> Extra: This can also be used in combination with <H#>Header Size?</H#> #= 1 24 pt font #= 2 18 pt font #= 3 14 pt font #= 4 12 pt font #= 5 10 pt font #= 6 8 pt font Example: <H4 ALIGN="CENTER">Header in 12 point font</H4>
Why can a CT be shorted and a Pt cannot?
A current transformer pushes a ratio of primary current in the secondary. A potential transformer pushes a ratio of primary voltage in the secondary. Shorting a CT allows the full current the CT wants to push to flow. Shorting a PT makes it very difficult for the PT to produce rated voltage. To keep the voltage at rated value, the PT would have to push ~infinite secondary current.
What is PT Bus Operator?
Part Time
What kind of lines are line PT and line SN?
They are undefined lines.
What was the basketball 3-pt line used for before it represented the 3-pt line?
Prior to the three point shot being implemented, there was no three point line on the court.
What is PT-CED..?
Pt means pretreatment line & ced means cathode electrode deposition line in paint shop. Pt ced line in mahindra & piagioo you can visit piagioo in dasehra free all of you thanks & regards ramakant kumbhar 9673001306
What does no bus mean on a Chrysler PT Cruiser?
The "bus" is the system that the computers on the car use to communicate with each other. "no bus" means that something has happened to cause a failure in the system.
Where is the 3 pt line measured from?
the center of the basket
What kind of lines are the line PT and SN?
Straight lines.
What is the default line spacing in Microsoft Word?
The default spacing in Microsoft Office Word 2007 - Spacing Before: 0 pt and After: 10 pt; Line Spacing: multiple at: 1.15.
When did the first Chrysler PT Cruiser roll off the assembly line?
The first Chrysler PT Cruiser rolled off the assembly line on February 14, 2000 from the Toluca Assembly Plant in Toluca, Mexico.
Can a soldier be discharged for failing a PT test after the Unit finds out that soldier was injured in the line of duty?
No because first he failed the PT while he was hurt so no
Where is the main motor mount on a pt cruiser?
There are mounts on all four sides.
What is the main job that occurs when a film is in post production?
Correct answer (1 pt) editing
