Table of Contents
Advertisement
15.2
Time delayed overcurrent protection
(TOC)
3.
Switch off the fault current.
Observe the maximum permitted overloading of the current cir-
cuits in the terminal.
4.
Compare the measured operating current with the set value
IN>.
5.
Set the fault current to about 1.5 times the measured operat-
ing current.
6.
Switch on the fault current and measure the operating time of
the TOC protection. Use the TOC--TRN signal.
7.
Compare the measured time with the set value tN.
Completing the test
Continue to test another function or complete the test by setting the test mode to off.
Chapter 11
Verifying settings by secondary
injection
99
Advertisement
Table of Contents
