Protection Relays

REYROLLE is a brand of Siemens protection relays (Siemens Protection Devices - SPD). Manufactured in the UK, the REYROLLE brand of numeric and auxiliary protection relays offers simple and versatile functionality. The range has support for DNP3, IEC 60870-5-103 and MODBUS RTU.

Function	Model
Overcurrent Directional overcurrent	Argus-C
Distance protection	Ohmega
Line differential	Solkor (Pilot wire protection)
Transformer protection	DUOBAIS
Capacitor bank protection	MSCDN
Bus bar protection	DAD
Auto reclose & synch check	RECLOSER-M Tau
Auxiliaries, trip relays and timers	AR, XR, MR, DDB
Intertripping	BD, GF, TEC
Test blocks	2RMLG

Argus-C

After extensive development, Reyrolle SPD have released a new overcurrent protection relay, perfect for NZ feeder protection applications. The ARGUS-C features:

Overcurrent and earth fault protection (single and four pole), with optional directional elements
Compact size (E4 case – 177 mm high (4U), 104 mm wide)
3 or 6 BI, 5 or 8 BO, 10 tri-colour annunciator LEDs
DNP 3.0 Serial output (2 wire RS-485). 103 and Modbus RTU also supported
USB front interface
24-80 Vdc or 80-250 Vdc auxiliary supply
Free setting software (Reydisp Evolution 32)
All the normal monitoring functions plus positive, negative and zero sequence values
Fault record storage for 10 events
Optional Auto reclose

Protection functions include undervoltage, undercurrent, broken conductor, negative phase sequence, thermal overload, earth fault and sensitive earth fault, CB failure, overvoltage, neutral displacement, high impedance earth fault, directional elements, cold load, CT and VT supervision, trip circuit supervision and lockout.

More info on ARGUS-C
Go to ARGUS-C website

Solkor

The Solkor R/Rf is a very traditional and reliable approach to differential line protection operating over copper pilot wires. Solkor relays are well known and proven for their simple yet practical protection. Installation is simplified with no need for auxiliary supply circuits. Intertripping and pilot wire supervision products also available. For more complex protection requirements, we recommend the Siemens SIPROTEC 7SD600/610 series.

More info on Solkor R/Rf

Test blocks

The range of 2RMLG test blocks, housed within an Epsilon enclosure, offers facilities for monitoring and secondary injection testing of power system protection schemes in conjunction with the MMLB 01 multi-fingered test plug.

More info on 2RMLG test blocks

Go to Siemens page
Go to SIPROTEC page
Go to REYROLLE website