schneider-electric
Schneider Sepam 80 Series Multi-Function Bay Protection Relay
Model: S80
4-hour response · Pricing in SAR · Delivery across all KSA regions
S80 — Schneider Sepam 80 Series Multi-Function Bay Protection Relay
The Schneider Electric Sepam 80 series is a comprehensive multi-function protection relay designed for complete bay protection in medium-voltage power systems, combining feeder, transformer, motor, busbar, and generator protection functions in a single programmable IED that replaces complete relay panels with multiple discrete relay assemblies. The Sepam 80 integrates up to 60 protection functions — overcurrent (50/51), directional overcurrent (67), earth fault (50N/51N), differential protection (87), restricted earth fault (64), distance protection (21), voltage protection (27/59), frequency protection (81), and generator protection functions (40, 46, 51V, 78) — plus advanced automation logic through the SFT2841 SETR logic editor, enabling complex bus transfer, interlocking, and automatic switching schemes to be programmed within the relay without a separate PLC.
The Sepam 80's high-speed protection operates with a trip delay below 20 ms for instantaneous elements — comparable to dedicated high-speed protection relays — while the advanced disturbance recorder captures 64 cycles of waveform data across 8 current and 4 voltage channels with 128 samples per cycle, providing the highest quality fault analysis data available from a single relay IED. IEC 61850 Edition 2 native communication with GOOSE messaging enables fast inter-relay tripping schemes for busbar protection and transfer tripping, eliminating fibre-optic pilot cables on adjacent bay tripping applications. The relay is fully type tested per IEC 60255 and IEEE C37.90 to the extreme temperature, humidity, and EMI requirements applicable to Saudi Arabia's exposed outdoor and tropical switchgear environments.
In Saudi Arabia, Sepam 80 relays are deployed at 115 kV/33 kV primary substations under SEC's network modernisation programme, at ARAMCO's 115 kV/33 kV transmission and distribution substations, and at Ma'aden mining operation primary substations in northern Saudi Arabia where the high fault levels of the mining electrical system require the comprehensive protection functions of the Sepam 80. Generator protection applications at SEC's open-cycle gas turbine peaking plants and at ARAMCO's cogeneration facilities at the Saudi Aramco Ras Tanura Refinery are another key market for the Sepam 80 series.
Razz Middle East supplies Sepam 80 relays with full factory testing, IEC 61850 GOOSE configuration, disturbance recorder setup, and site commissioning services. Our protection engineers provide relay co-ordination studies, protection philosophy review, and SETR logic programming for complete bay protection projects at SEC, ARAMCO, and industrial customer substations throughout Saudi Arabia.
Technical Specifications
Full specifications for the S80
- Protection Functions
- Up to 60 ANSI functions
- Trip Time
- <20 ms (instantaneous)
- Disturbance Recorder
- 64 cycles, 128 samples/cycle
- Communication
- IEC 61850 Ed.2 (native), Modbus, IEC 60870-5-103
- Logic
- SETR programmable automation
- Auxiliary Supply
- 24–250 V DC
- Ambient
- -25 to +70°C
- Standard
- IEC 60255, IEEE C37.90
Key Features & Benefits
- Up to 60 integrated ANSI protection functions — including differential (87), distance (21), and generator protection (40, 46, 78) — replace complete relay panels, dramatically reducing substation panel space and wiring.
- Sub-20 ms instantaneous trip time for current-operated elements matches dedicated high-speed protection relay performance while providing the full range of integrated functions in a single IED.
- 64-cycle waveform disturbance recorder with 128 samples per cycle across 8 current and 4 voltage channels provides the highest quality fault analysis data available from a protection relay IED.
- IEC 61850 Edition 2 native communication with GOOSE inter-relay tripping enables fast busbar protection and transfer tripping without fibre-optic pilot cables or hard-wired trip contacts.
- SETR integrated automation logic editor programs complex bus transfer, interlocking, and automatic re-closing schemes within the relay, eliminating separate substation automation PLCs.
- IEC 60255 and IEEE C37.90 type-tested for extreme temperature, humidity, and EMI environments, meeting the qualification requirements of Saudi Arabia's coastal and desert substation installations.
- Single Sepam 80 IED providing complete bay protection documentation, COMTRADE fault records, and IEC 61850 data model satisfies the single-source relay documentation requirement of SEC and ARAMCO protection engineering standards.
Industrial Applications in Saudi Arabia
- SEC 115 kV/33 kV primary substation bay protection under the network modernisation programme, where Sepam 80 provides complete feeder, transformer, and bus protection with IEC 61850 SCADA integration.
- ARAMCO 115 kV/33 kV transmission substation differential and distance protection at Eastern Province network hubs, where Sepam 80 GOOSE transfer tripping eliminates pilot cable infrastructure costs.
- Ma'aden mining primary substation protection at Wa'ad Al-Shamal, where Sepam 80's generator and busbar protection functions address the complex protection requirements of the mine's 132 kV cogeneration plant.
- SEC gas turbine peaking plant generator protection at Riyadh and Jeddah, where Sepam 80's generator protection function suite (40, 46, 51V, 78) replaces five or more discrete generator protection relays.
- SABIC cogeneration plant generator and transformer protection at Jubail and Yanbu industrial complexes, where Sepam 80 integrates generation protection, SCADA communication, and disturbance recording in a single IED.
- NEOM's utility network primary substation protection infrastructure, where Sepam 80 IEC 61850 Edition 2 communication integrates into the city-scale digital substation architecture planned for the smart city network.
- University campus central substation bay protection at KFUPM and KAUST, where the comprehensive protection function library of Sepam 80 provides technically complete bay protection documentation for academic engineering programmes.
Industrial Supplier in Saudi Arabia
Get a Quote for the Schneider Sepam 80 Series Multi-Function Bay Protection Relay
We respond within 4 business hours. Send model S80 for competitive pricing in SAR with delivery across Saudi Arabia and the GCC.
Frequently Asked Questions — S80
Common questions from buyers in Saudi Arabia and the GCC