Whats the type of current and potential transformers?
Answers were Sorted based on User's Feedback
Answer / parth belani
current and potential transformers used in the industries
are mainly of two types. One, which are used for protection
purpose. sencond type is of those which are used for
measuring purpose. The difference between them is their
saturation limit of the transformer core. Those which are
used for protection purpose should have higher saturation
limits.
Is This Answer Correct ? | 11 Yes | 0 No |
Answer / c.hari balakrishnan
Instrument transformers (potential & Current)used for
protection and metering purpose...Current transformers
which is used for protection is normally 5P20 class,
for differential protection i.e, PX class cts & Metering
0.2FS5 class Cts whose saturation value is very less...
For Voltage transformers 0.2 & 3P class for
metering,Protection...
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / sidharth
current and potential x'mer are use for busbar protection.
In CT protection current is step down to lower value and
measured and gives signal to relay and same concept is use
for PT.
Is This Answer Correct ? | 4 Yes | 1 No |
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor frequency at maximum torque point is A 3.33% B 4.44% C 5.55% D 6.66%
An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another
why are u join ntpc
How much load can be taken for chiller from 1500 kva transformer
seromechanism
sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah
What is the main feature of v/f control?
WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?
HOW DOES THE FAN REGULATOR CONTROLS ITS SPEED
what do u understand from filter factor of reactor?
What is critical disruptive voltage?
How out of step protection relay works?