Feeder Protection & Distribution Automation Solution — GE SR760 760-P1-G1-S1-HI-A20-R | SR Series
Where This Product Is Used
The GE SR760 Feeder Management Relay is purpose-built for medium-voltage feeder protection and control in demanding industrial and utility environments. Engineers specify this relay across a wide range of critical applications:
- Utility Distribution Networks: Primary and backup feeder protection for 4.16 kV–34.5 kV distribution feeders, including radial and looped network topologies.
- Industrial Power Distribution: Motor control centers (MCCs), switchgear lineups, and plant distribution boards in oil & gas, petrochemical, mining, and heavy manufacturing facilities.
- Renewable Energy Plants: Feeder and collector circuit protection in wind farms and solar PV substations where fast, selective tripping is critical.
- Water & Wastewater Treatment: Protection of pump station feeders and process-critical distribution circuits requiring high availability.
- Data Center & Critical Infrastructure: Backup feeder protection in medium-voltage switchgear serving mission-critical loads.
- Transit & Rail Traction Power: Substation feeder protection where arc-flash mitigation and fast fault clearance are mandatory.
Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | SR760 760-P1-G1-S1-HI-A20-R |
| Manufacturer | GE Grid Solutions (formerly GE Multilin) |
| Series | SR760 Feeder Management Relay |
| Rated Current Input | 1 A / 5 A (selectable) |
| Rated Voltage Input | 100–120 V AC (phase-to-phase) |
| Auxiliary Supply Voltage | 20–60 V DC / 20–48 V AC (HI option) |
| Protection Functions | 50/51, 50N/51N, 67/67N, 27, 59, 81O/U, 46, 50BF, 79, 25 |
| Communications | RS-485 Modbus RTU (S1 option) |
| Inputs / Outputs | 8 Digital Inputs / 7 Output Relays (P1 option) |
| Metering | 3-phase V, I, P, Q, PF, frequency, energy (G1 option) |
| Oscillography | 16 cycles, 8 records |
| Mounting | 19″ rack / panel flush mount |
| Operating Temperature | -40°C to +60°C |
| Weight | 950 g (approx.) |
| Standards Compliance | IEC 60255, ANSI/IEEE C37.90, UL, CE |
Why Engineers Specify This Model
- Comprehensive Protection Suite: Integrates overcurrent, directional, voltage, frequency, negative-sequence, and breaker failure protection in a single 4U chassis — eliminating the need for multiple discrete relays.
- Directional Overcurrent (67/67N): Essential for looped networks and parallel feeders where fault direction discrimination is required to maintain selectivity.
- Auto-Reclose (79) with Sync-Check (25): Reduces outage duration on overhead feeders by automatically restoring supply after transient faults.
- High-Impedance Fault Detection: The HI option enhances sensitivity for downed-conductor and high-impedance fault scenarios common in distribution networks.
- Integrated Metering & Power Quality: G1 metering option delivers revenue-grade measurements, reducing the need for separate power meters.
- Modbus RTU Communications: S1 serial port enables seamless integration with SCADA, DCS, and energy management systems via standard protocol.
- Proven Field Reliability: The SR760 platform has decades of deployment history in utility and industrial applications globally, with a well-established spare-parts ecosystem.
Complete System Bill of Materials
For a complete feeder protection panel using the SR760, engineers typically specify the following complementary components:
- GE SR760 760-P1-G1-S1-HI-A20-R — Feeder Management Relay (this unit)
- Current Transformers (CTs) — 5 A or 1 A secondary, class 5P20 or better
- Voltage Transformers (VTs) — 100 V secondary, class 0.5 or 3P
- Test Blocks — Omicron, Megger, or equivalent for secondary injection testing
- RS-485 to Ethernet Converter — for Modbus TCP/IP SCADA integration
- 24 V DC or 48 V DC Panel Power Supply — to match HI auxiliary voltage option
- Trip Circuit Supervision Relay — for breaker coil monitoring
- GE EnerVista SR760 Setup Software — for configuration and event retrieval
Compliance & Industry Standards
- IEC 60255 — Measuring relays and protection equipment
- ANSI/IEEE C37.90 — Relays and relay systems associated with electric power apparatus
- ANSI/IEEE C37.90.1 — Surge withstand capability (SWC)
- IEC 61000-4 Series — EMC immunity requirements
- UL Listed — Recognized component for North American markets
- CE Marked — Conformity with EU directives for industrial equipment
- IEC 60068 — Environmental testing (temperature, humidity, vibration)
Quality Assurance & Sourcing
At Konmask, every GE SR760 unit is subject to a rigorous incoming inspection process before dispatch:
- Authenticity Verification: Serial number and firmware version cross-referenced against GE Grid Solutions records.
- Physical Inspection: Housing, terminal blocks, display, and front-panel controls inspected for transit damage or wear.
- Functional Power-On Test: Unit powered and self-diagnostic routines confirmed to pass before shipment.
- Traceability Documentation: Full chain-of-custody records maintained; test reports and calibration certificates available on request.
- Packaging: Anti-static foam-lined carton with desiccant; double-boxed for international shipments.
We source exclusively from authorized distributors, OEM surplus channels, and verified industrial decommissioning projects. We do not deal in counterfeit or grey-market goods.
How to Source This Part
- In-Stock Orders: Add to cart and complete checkout — most orders ship within 1–3 business days from our warehouse.
- Bulk / Project Quantities: Contact us at support@konmask.com for volume pricing and lead-time commitments.
- Urgent / Emergency Procurement: Call or WhatsApp +0086 19859288691 for same-day response on critical plant shutdowns.
- Technical Pre-Sales Support: Our engineers can review your protection coordination study and confirm this model meets your application requirements before purchase.
- Export & International Shipping: We ship worldwide with full export documentation (commercial invoice, packing list, COO). DDP and DAP Incoterms available.
Application-Specific FAQ
Q: Can the SR760 760-P1-G1-S1-HI-A20-R be used on a 5 A CT secondary circuit?
A: Yes. The P1 I/O option supports both 1 A and 5 A CT secondary inputs, selectable via the front-panel setup menu or EnerVista software.
Q: What does the “HI” suffix indicate?
A: The HI designation specifies the auxiliary power supply range of 20–60 V DC / 20–48 V AC, making this unit suitable for battery-backed substation DC systems operating at 24 V or 48 V nominal.
Q: Is the A20 option related to auto-reclose?
A: The A20 designation refers to the specific hardware assembly/order code variant. Auto-reclose (ANSI 79) is a standard function of the SR760 platform and is included regardless of this suffix.
Q: Can this relay communicate with a Modbus TCP/IP SCADA system?
A: The S1 option provides RS-485 Modbus RTU. For Modbus TCP/IP, an external RS-485-to-Ethernet gateway (e.g., Moxa NPort series) is required. GE also offers the SR760 with optional Ethernet ports in other order codes.
Q: Is EnerVista SR760 setup software included?
A: The relay ships without software media. EnerVista SR760 is available as a free download from GE Grid Solutions. We can provide the download link and configuration guidance upon request.
Q: Do you provide a warranty?
A: Yes. All units sold by Konmask carry a 12-month warranty against defects in materials and workmanship from the date of shipment. See our warranty policy for full terms.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
