750-P5-G5-S5-HI-A20-G-E GE Multilin 750, Feeder Protection Relay

Description:

The 750-P5-G5-S5-HI-A20-G-E is a high-performance Feeder Distribution Management Relay produced by General Electric Multilin, part of the 750 series. This relay is designed to control and protect feeder distribution systems of medium to large size. Here is a product description based on the information gathered from the official sources and manuals:

Product Description:
The 750-P5-G5-S5-HI-A20-G-E is a digital protection relay that offers a range of advanced features for managing and protecting distribution feeders in various industrial applications. It is built on the GE Multilin P5 platform, which is known for its high reliability and advanced protection functions.

Key Features:
1. Programmable Setpoint Menu Navigation: The relay offers programmable setpoint menu navigation, allowing for easy configuration and access to various settings through an on-site keypad. This provides direct access to metering, status, maintenance, trip counter, arcing current, and other critical settings.
2. Security Features: It includes both hardware and passcode security features to prevent unauthorized changes, ensuring the safety and integrity of the relay settings.
3. Protection and Monitoring Functions: The relay can define protection elements, gather system data, define output contact energizing, define breaker closure, and monitor breaker status. It also performs monitoring functions such as time delays, breaker timings, alarm and trip values, and minimum and maximum values.
4. Input and Output Channels: The 750-P5-G5-S5-HI-A20-G-E is equipped with 5 A phase current inputs, 5 A zero-sequence current inputs, and 5 A sensitive ground current inputs. It also features eight 4-20 mA analog outputs for versatile connectivity.
5. Power Supply Ratings: The unit is rated for 88 to 300 VDC control power or 70 to 265 VAC @ 48 to 62 Hz, making it suitable for a wide range of power systems.
6. Environmental Resilience: The relay is designed to withstand harsh chemical environments and is equipped with automatic bus transfer and sync check functions, reverse power protection, and restricted ground fault protection.
7. Networking Interfaces: It includes multiple network interfaces such as Ethernet, RS232, RS485, and RS422 ports for easy integration with other system components.
8. Event Recording: The relay has an event recording feature that can capture the last 512 events in the system, including date, time, cause, and system parameters at the time of the event. It also has a filtering system to exclude regular events for a clearer understanding of the system's needs.

Frequently Asked Questions:

1. What types of current inputs does the GE Multilin 750-P5-G5-S5-HI-A20-G-E support?
The GE Multilin 750-P5-G5-S5-HI-A20-G-E supports 5 A phase current inputs, 5 A zero-sequence current inputs, and 5 A sensitive ground current inputs.

2. What is the control power supply voltage range for the GE Multilin 750-P5-G5-S5-HI-A20-G-E?

The control power supply voltage range for the GE Multilin 750-P5-G5-S5-HI-A20-G-E is 88 to 300 VDC or 70 to 265 VAC @ 48 to 62 Hz.

Datasheet Link:

750-P5-G5-S5-HI-A20-G-E GE Multilin 750, Feeder Protection Relay PDF Datasheet