Frequency protection relay Reyrolle 7SR158
voltagephase sequencepanel-mount

frequency protection relay
frequency protection relay
frequency protection relay
frequency protection relay
Add to favorites
Compare this product
 

Characteristics

Measured/monitored value
voltage, phase sequence, frequency
Mounting
panel-mount
Communication
RS485
Norms
IEC
Other characteristics
digital, programmable, configurable, multifunction
Trigger voltage

Min.: 64 V

Max.: 300 V

Description

The Reyrolle 7SR158 Argus voltage and frequency relays are numerical, multifunctional devices, with functionality designed for connection to voltage transformers. The voltage and frequency functionality is supplemented by data storage, instrumentation, user configurable logic and data communication features. A menu based user-friendly interface provides local access to relay settings, instruments and operational data. The fascia also benefits from 9 user configurable, tri-coloured LEDs and a USB port for PC access. The key functions provided include 27/59 -under and overvoltage, 81 -under and over frequency, 78 -Voltage vector shift and 81R -Rate of change of frequency. Relays have three voltage inputs, six binary inputs and eight binary outputs and are housed in a size E4 case. Programmable logic is provided to allow the optimal configuration of relay functionality. A rear electrical RS485 port is provided for SCADA connection using either IEC60870-5-103, DNP3.0 or MODBUS RTU protocol. Functions Protection functions •Under/over voltage •Under/over frequency •Rate of change of frequency •Negative phase sequence voltage •Neutral voltage displacement •Voltage vector shift Supervision functions •Trip and close circuit supervision •Lockout Monitoring functions •Primary/secondary line and phase voltages •Historical demand record •Positive phase sequence (PPS) voltage •Negative phase sequence (NPS) voltage •Zero phase sequence (ZPS) voltage Further functions •Four settings groups •2 levels password protection •Self monitoring •Circuit breaker trip and maintenance counters •Fault, event and waveform records •Programmable user logic •User alarms
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.