where we use zero sequence current transformer or core
balancing ct.
Answers were Sorted based on User's Feedback
Answer / blake australia
To detect earth faults:
Zero sequence refers to the current flowing during an earth
fault. 2methods of decting earth fault.
-Measure the current on the earth return cable
-Measure the current imbalance on the 3x phase cables (do
this by putting all three through the same core balance CT.
Is This Answer Correct ? | 24 Yes | 5 No |
Answer / prabhakar
For 51G protection we normally use the CBCT(Core balance
current transformer)for to detect the unbalance current
caused due to earth fault
Is This Answer Correct ? | 8 Yes | 3 No |
what is back emf?
What is excitation in case of dc motor?
is dc shunt moter oprate on ac? if no why? if yes how?
8 Answers IOCL, JJJ, Power Grid,
what will happen if OLR CT in all phases are short circuted
how to get more than 1000 ohms between 2 earth pits ?
why inuctive drop is not consider in DC MOTOR
I HAVE 2 nO'S OF SYSTEMS, HOW MUCH UPS CAPACITY REQUIRED ALONG WITH 400WATTS ANOTHER LOAD? PLEASE GIVE THE FORMULA?
how many winding in the single phase transformer?
I have 3KVA Libert GTX2 UPS. I need to calculate the back up time with some load. How to calculate the Back time. I need the expert guide
THERMAL CAPACITANCE IS MEASURED IN..................................................
what is the step by step formula for calculating bus bar phase and neutral size of a panel board.suppose the incomer of panel board is 100A..???step by step answer please
Hi,Any one has idea regarding the KPTCL Recuirtments for AE'e & JE's for the year of 2009-10???Kindly help in regards..