РС83-АВЗ with arc protection — Microprocessor relay protection and automation (РЗА) device for 6-35 kV feeders (КСЗ and АУВ)

Microprocessor relay protection and automation (РЗА) device for 6-35 kV feeders (stepped protection set (КСЗ) and circuit-breaker control automation (АУВ)), functions: 5 stages of directional overcurrent protection (МТЗ) with inverse-time characteristics, blocking on voltage circuit failure, 4 stages of earth-fault protection, 2 stages of earth-fault protection with inverse-time characteristics based on the sum of higher harmonics of 3I0 for compensated networks, 2 stages of negative-sequence current protection (I2, I2⁄I1), 4 stages of voltage protection (undervoltage (ЗМН) Uф, ЗМН Uл, overvoltage (ЗПН) Uл, ЗПН 3U0, ЗМН U1, ЗПН U2), voltage circuit supervision (БНН), 2 stages of underfrequency load shedding (АЧР) by frequency, 2 stages of frequency-actuated auto-reclosing (ЧАПВ) by frequency, АЧР/ЧАПВ via digital inputs, 2 stages of two-shot auto-reclosing (АПВ), breaker failure protection (УРОВ), voltage-controlled blocking (ВМБ), harmonic-level blocking, flexible logic, oscillograph, fault log, event log, fault location (ОМП), current-powered supply and de-shunting (optional), up to 26 DI, up to 15 KL; communication interfaces and protocols: USB (Modbus-RTU), 2 RS-485 ports (Modbus-RTU, IEC 60870-5-103), 3-channel optical arc protection complete with 3 point-type arc sensors up to 3m long each

Shipped from the Almaty warehouse on the day of your request. Across Kazakhstan we ship by freight carriers; the manager will calculate the cost.

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