What happens when the polarity changes in CT? Explain
briefly?
Answer Posted / guna
CT - current transformer, other name is instrument transformers, which are used to measure high currents. By depending upon winding ratio (Ex,20:5) it gives the current value at the user end. if we change the polarity means (5:20) either it will show high current nor it can get short circuited due to abnormal current flow on the LT side.
Is This Answer Correct ? | 2 Yes | 15 No |
Post New Answer View All Answers
Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??
Is there a standard depth of gravel fill in Substation Switchyard? Please give a design/drawing. Thank you.
How to calculate capacitor bank size at a load 800kVA.
What is the formula to calculate the rating of power cable for three phase current.
what is the purpose that we use PLC system in power system
IN dc capacitive reactance is??
kindly send me 11KV MV motor differential protection procedure by primary injection method.
Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics
what is the IS foe lightning arrester?
why HT armoured cable does not glanding
1.What is the range of stator resistance of 3-phase induction motor? 2.Two electrically operated vibro motors are foxed in parallel direction in vibrating feeders. what is the direction of both vibro motors?
What does the a,b,c of 95a,95b,95c relays denotes?
Please elaborate th´evenin’s theorem?
What was your role in the silicon evaluation/product ramp? What tools did you use?
What are the application of filter?