T&R 200A-3PH mk2, Руководство по эксплуатации и техническому обслуживанию

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1.5 Overload Protection
The 200A-3PH mk2 is fitted with a range of over protection devices, listed in the table below.
Location Protection
Mains supply T5A fuses on each phase
Auxiliary ac output T315mA fuse
Contact circuits Auto-resetting semiconductor fuses
Main output Electronic over-current trip
Electronic duty cycle trip
Thermal protection
Auxiliary metering
current input F10A fuse
1.5.1 Storage of results
The 200A-3PH mk2 can store all displayed values to a CSV spreadsheet file whenever the
timer stops or the output is switched off. This is useful for recording all results, plotting relay
curves and plotting transformer magnetisation curves.
Files are stored on the USB key in the folder \TRTEST. A folder is then created in this using
the day’s date, and results files are named with the time of the test.
A comment can be entered to be stored with the results using a USB keyboard.
The following values are stored:
•
Time
•
Date
•
Main output current for each phase
•
Timer result
•
Auxiliary current/voltage input value
•
Auxiliary metering phase & frequency
•
Comment
Macros are provided with the unit to format results and plot graphs for IDMT overcurrent
relays.