Dear all,
I am trying to imperilment The IT - characteristic feature for motor protection device.There are 2C,5C,10C curve feature . can someone suggest me how it can be implemented in C code.
Is there any example code available.
https://www.l-3.com/private/ieee/Motor%20Protection%20Principles.pdf
Is there any equation for setting current and time . which i can easily used for implimentation.
Is there any update on above requiement. How it can be acheived time vs current in code
Dear all,
I am looking for sample code that can create above curve.I would like to adjust the value based on curve selection.
i have attached curve for reference.
The min_Set current range :0.8A
The Max_Set current range :30A
Trip time setting :1S-25S
Now based on 2C/5C/10C curve selection Trip time must be selected. Can someone give relationship between time Vs Current.
Am I correct to think you want to measure the current going to a DC motor and monitor the time when it exceeds some threshold so that you can switch off the motor if it is above the threshold for a too long time?
If so, what is the threshold current and what voltage does the motor operate at?
...R
Min current range settable: 0.8A
max current range settable is 30A
trip timing can be set from 1S -25S
motor operated at 240V AC
considering this example let me know calculation involved and formula to execute same
How are you measuring the current and voltage ?
I want to understand this curve . and implement same.
I have only one common measurement is current through each phase.
I wanted to know how its implemented in plotting curve and take action with various curve 2C/5C/10C shown in image
I am using external CT to measure the current 0.8A-30A.
under current , overload current , Short circuit current, locked rotor current are adjusted config. This was plan to complete this project. Its under development.
