The test system is designed and customized to carry out 2.55*Intest as per Table 7 (test c) of IEC 60898 (also mentioned for routine testing of MCBs. The test is done at dc current to exactly analyze and correct the bimetallic properties of the MCB as far as thermal tripping is concerned. The unit comes with a pneumatically operated test fixture with in-built dc stepper motor that is controlled by a micro controller / PC to calibrate the breaker into a narrow tripping band programmed by the user.
I/p voltage : 230V AC +/-10 %
I/p frequency : 50Hz
O/p voltage : 10V for 10A, 5V for 20A, 2V for 100 & 200A
O/p current (programmable)
Line Regulation : 0.20%
Load Regulation : 0.50%
MCB Ratings covered for 2.55 test : 0.5, 1, 2, 4, 6, 10, 13, 16, 20, 25, 32, 40, 63, 80, 100 and 125 A (depending upon the range of the current source chosen)
Scalable up to : 12 stations
COMING SOON !
