Phase failure Phase Sequence Voltage Protection Relay Tense DGK04F in Pakistan
Description
A three-phase fault usually develops first as a phase-earth fault, and it may be unbalanced. Even when a circuit-breaker closes on to a three-phase fault, one phase may momentarily be faulted before the other two, a matter of importance in high speed protection.
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zain ahmad –
Nice product. Packing very good. Long lasting