phase protection relay / voltage / panel-mount / differential
1/3 x 19 in | 7SD84
Vnation JSC
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Measured/monitored value:
phase, voltage
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Other characteristics:
panel-mount, differential
Line protection for all voltage levels with 3-pole tripping Phase-selective protection of overhead lines and cables with single multi-ended infeeds of all lengths with up to 6 line ends, it is also used in switch gear with breaker-and-a-half schemes. Transformers and compensating coils in the protection zone. Suitable for radial, ring or any type of meshed systems of any voltage level with grounded, compensated or isolated neutral point. Protection of lines with capacities series compensation. Main protection function is differential protection with adaptive algorithm for maximum sensitivity and stability even at different CT errors, CT saturation and capacities charging currents.