Answer Posted / hsenid
well ct is current transformerit is connecter series to the line used to measurs the current and pt is potential transformer it is used to measure the voltage between two point and it is connected parallel to the line
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
What is the control action?
tan delta equation test on alternators
there are cam operated switches - why we call cam operated , What is cam ?
Why different Pressure switch used in marine boiler water circulation system
We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?
what are factors comes under relay setting (distance relay 7sa52) under OPEN DELTA VTs connection??
How to calculate per unit impedance of transformer?
How to calculate Ith (I thermal) for curent transformer
What is the function of capacitor in electrical circuits?
What is a dc motor?
what is earth pit , how we can measured it, what earth rods reference
what is the difference between the voltage of 5 volts capacitor and and 5volts battery?
Describe the test procedure to determine the vector group
is all the servo motors having brake?please specify which servo motors having brake for stop on position and which are not.
send me all basic electrical question and answers