To verify the Tripping Characteristic of MCBs as per clause 9.10.1 of IEC 60898 & IS 8828
Completely stand-alone unit after initial configuration of test parameters
Change of test current (from 1.13 In to 1.45 In) after set time (usually 1 hour) is automatic
Chart provided on the panel for using the right CT links and Voltage Taps for required test currents (1.13 In and 1.45 In)
Individual test time measurement for each station
Arrangement to connect lugs of various sizes inside the heating chamber
Instantaneous Bypass arrangement on each station in the event of MCB trip to maintain uninterrupted current
Graded inductors to maintain required OCV at the source output (Min 30 V as per standard) especially while testing less number of MCBs
MCB Range Selection: Through neatly labelled shorting links
User friendly digital interface to input test parameters
The user may simultaneously test MCBs of different brands and compare the test results (Ideal Application for Test Labs and Certification Agencies)
2.55 test on reduced number of stations by user setting
PC Based Option Available (Extra) for control and data keeping on a PC (SCADA) with customized software
Input Supply: 230 V +/ – 10%, 35 Amps AC, 50 / 60 Hz (o/p frequency same as i/p frequency)
Available test stations on the panel: 6 or 12 stations
Output Current: 0.5 A to 145 A
Ratings of MCBs covered: 0.5A, 1A, 1.6A, 2A, 3A, 4A, 6A, 8A, 10A, 13A, 16A, 20A, 25A, 32A, 40A, 45A, 50A, 63A, 80A, 100A (Max rating of MCB can be customized such as 32, 63, 100 A)
Mode of Operation: Manual Mode and Auto Mode
Heating chamber of size 1200 mm, 1000 mm, 300 mm (approximate: different for 6 stations) provided with bus bar to accommodate lugs of different sizes for each station with precise temperature controller (programmed from front panel) to maintain temperature +/- 2 º C (Range: 30 o C to 60 o C).
Twelve samples can be tested for No Trip /Trip Test simultaneously (6 samples on 6 station bench)
The SCR Elektroniks 12 station MCB Tripping Characteristics Test Bench is optimally designed to verify the Tripping Characteristic of MCBs as per clause 9.10.1 of IEC 60898 (Also mentioned in Indian Standards IS 8828). The bench essentially comprises of Servo Controlled mechanism to set and maintain desired current (against incoming mains fluctuation) and a Micro controller based master controller unit plus timer, which governs the entire sequence of operation making it a stand-alone system once the user connects the MCB and configures the test parameters.
The two typical tests in the test bench, each of one hour maximum, viz. 1.13 In and 1.45 In are carried out automatically one after another and the trip times are recorded and digitally displayed on the individual station timer. The test parameters such as no trip and trip test current, test time, chamber temperature and so on are programmed in a digital manner on the front panel. A pass / fail display on individual station by individual LED lamps along with trip time on digital displays ensure a quick reading of all the MCBs making the bench easy to configure parameters and to read test results.