rn, and by manipulating a device for correctness. Polarity of the TA to correct, especially in special units, such as TA polarity of wiring according to the protection requirements, both current differential circuit grounding to be fully implemented in accordance with the statutes and the countermeasures required. For high voltage to ground cable, both ends of the cable shield grounding by code requirements. Relative to the ic type bus differential protection, at run time, run on microprocessor-based Busbar differential protection of personnel actions significantly less, but the switch position changes, staff necessary for the operation of protection devices reflect the switch location check, so that in case of exceptions can be found ina timely manner, to deal with anomalies much earlier.
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