Product Profile of Numerical Motor Over-Current Protection Relay

Numerical Motor Over-Current Protection Relay requires internal reconstruction phase-phase voltage and open delta voltage for direction detection. The Over-Current Protection Relay enables internal calculation of zero seq. EF current [3Io] and Zero sequence voltage [3Vo] for directional detection for Earth fault. Ashida Eletronics Pvt. Ltd., an ISO 9001:2008 certified company manufactures Numerical Motor Over-Current Protection Relay.

Ashida Eletronics Pvt. Ltd. Offers a wide range of electrical power protection relays, auxiliary protection relay and SCADA systems. The Numerical Motor Over-Current Protection Relay is designed with the facility of 3 Phase voltage check and On site CT Secondary selection of 1A or 5A.

Salient features of the Numerical Motor Over-Current Protection Relay:

• Over-Current Protection including doubling feature

• Negative phase sequence element [46] includes Phase reversal.

• Selection of Curve: Five selectable IEC curve, Normal Inverse, Very inverse, Extremely inverse, Long time inverse [C5]] and Define Time [C6]

• Five C7 to C11 selectable IEEE/ANSI Curve another C1 to C11 RI/RXIDG curve with Drop-off time delay.

• Thermal Overload Protection.

• Start Number Protection.

• Stall Protection.

• Breaker Failure detection

• In-built CB Trip Circuit Supervision function during pre closing and post closing of CB.

• Under current Protection

• On site CT Secondary selection 1A or 5A.

• Under/Over voltage Protection.

• Under/Over Power Protection.

• Internal reconstruction phase-phase voltage and open delta voltage required for direction detection

• Nternal calculation of zero seq. EF current [3Io] and Zero sequence voltage [3Vo] for directional detection for Earth fault

• Residual O/V [NDV] Protection
.

• 3 Phase voltage check.