TAP901/TAP902 current expansion unit
Introduction：
TAP901/TAP902 current expansion unit on the TAP900 series is filled when the unit provides the current auxiliary criterion, but also equipped with a small arc probe and an output interface, can also be run separately in simple without display system. The main functions of TAP901/TAP902 are as follows:
1. ABC and zero sequence current overcurrent detection
2.4 way arc detection function
3.4 way in
4. special data connection interface
5. ABC and zero sequence current acquisition
6. fault and state LED indication
7.4 way out
8. protection current can be set up to support MODBUS and IRIG-B (two selected one)
9. Guideway installation in cabinet
10. the function of the parent joint detection (TAP902)
11.100 event records
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