Description
Technical Specifications
| Specification | Details |
|---|---|
| Brand | GE / GE Multilin |
| Model / Order Code | 760-P5-G5-S5-HI-A20-R-E |
| Product Type | Feeder Management Relay |
| Series | Multilin 750/760 |
| Base Unit | 760 — feeder management relay with autoreclose |
| Phase Current Inputs | P5 — 5 A phase-current inputs |
| Zero-Sequence Current Input | G5 — 5 A zero-sequence current input |
| Sensitive Ground Current Input | S5 — 5 A sensitive ground-current input |
| Control Power | HI — 88–300 VDC or 70–265 VAC, 48–62 Hz |
| Analog Outputs | A20 — 8 × 4–20 mA analog outputs |
| Breaker-Closed Indicator | R — red LED |
| Display | E — enhanced display with larger LCD |
| Autoreclose | Included by the 760 model |
| Communications | RS232/RS485 standard; optional Ethernet configuration depends on the additional order-code option |
| Typical Application | Feeder protection, monitoring, control, and automatic reclosing |
| Mounting | Panel-mounted feeder relay |
| Lifecycle | Legacy GE Multilin platform |
| Firmware | Version-dependent; verify the installed relay revision |
| Weight / Dimensions | Verify against the actual relay and packaging |
GE’s order-code documentation defines P5, G5, S5, HI, A20, R, and E exactly as shown above.
Configuration Breakdown
760 — GE Multilin 760 Feeder Management Relay, including automatic reclose functionality.
P5 — 5 A phase-current inputs.
G5 — 5 A zero-sequence current input.
S5 — 5 A sensitive ground-current input.
HI — high-range control power: 88–300 VDC or 70–265 VAC, 48–62 Hz.
A20 — eight 4–20 mA analog outputs.
R — red breaker-closed LED.
E — enhanced display with larger LCD. GE documentation specifically contrasts this with the B basic-display option.
GE 760-P5-G5-S5-HI-A20-R-E
Protection and Feeder Management
The 760 platform is designed for feeder protection and management, combining protective functions with measurement, control, communications, event recording, and automatic reclosing. The relay can monitor phase and ground current conditions and provide control outputs for feeder equipment.
The 5 A P5/G5/S5 configuration is particularly important for replacement procurement. A 760 relay with 1 A CT inputs is not automatically interchangeable with this 5 A version even though the overall relay family is the same.
Analog Output Configuration
The A20 suffix provides eight 4–20 mA analog outputs. These outputs can be used to transmit selected measured or calculated parameters to external instrumentation or a plant control system. GE’s ordering guide distinguishes A20 from A1, A5, and A10 configurations.
For an existing installation, verify the channel assignments before replacement because the physical output capability does not by itself establish which parameter each output is programmed to transmit.
Display and Communications
The E suffix specifies the enhanced display, which uses the larger LCD configuration.
The standard 750/760 platform provides serial communications, including front RS232 and rear RS485 interfaces. Optional communications configurations are available within the product family. The exact communication hardware installed in a particular relay should therefore be checked against the complete nameplate/order code.
Replacement Considerations
For an installed 760-P5-G5-S5-HI-A20-R-E, the following should be matched before replacement:
| Check | Importance |
|---|---|
| Complete order code | Confirms the hardware configuration |
| P5 phase CT input | Must match the installed CT secondary |
| G5 zero-sequence input | Must match the existing ground-current circuit |
| S5 sensitive ground input | Important for sensitive ground-fault protection |
| HI control power | Confirms the available AC/DC supply |
| A20 analog outputs | Preserves the eight 4–20 mA outputs |
| R breaker LED | Confirms the indicator configuration |
| E enhanced display | Prevents basic/enhanced display mismatch |
| Firmware revision | Can affect functionality and configuration compatibility |
| Communication hardware | Verify Ethernet or other optional interface requirements |
GE’s documentation shows that different 750/760 order-code combinations can have substantially different current inputs, analog outputs, displays, and communications configurations.
Lifecycle Considerations
The 750/760 family is a legacy GE Multilin protection platform. GE continues to provide historical technical documentation, including firmware-release documentation, but a replacement purchase should be based on the exact installed configuration rather than the generic 760 designation.
For critical feeder applications, preserving the original relay settings and communication mapping before replacement is important because the replacement relay may require restoration of site-specific protection parameters.
FAQ
What is GE 760-P5-G5-S5-HI-A20-R-E?
It is a GE Multilin 760 Feeder Management Relay with autoreclose, configured with 5 A phase, zero-sequence, and sensitive-ground current inputs, high-range control power, eight 4–20 mA analog outputs, a red breaker-closed indicator, and an enhanced display.
What does P5 mean?
P5 specifies 5 A phase-current inputs.
What does G5 mean?
G5 specifies a 5 A zero-sequence current input.
What does S5 mean?
S5 specifies a 5 A sensitive ground-current input.
What does A20 mean?
A20 specifies eight 4–20 mA analog outputs.
What does the E suffix mean?
E identifies the enhanced display with the larger LCD.
What control power does the HI version accept?
GE specifies 88–300 VDC or 70–265 VAC at 48–62 Hz.
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