GE 489-P5-HI-A20-E Generator Management Relay

Product Description:

The 489-P5-HI-A20-E is a generator management relay that is manufactured by GE as part of the 489 Generator Management Series.  This relay has 5A phase CT secondaries and a HI control power of 90-300 VDC and 70265 VAC at 48-62 Hz. The analog outputs on this relay are 4 to 20 mA. This 489-P5-HI-A20-E relay has an enhanced display with a larger LCD than the basic display generally serves as an upgrade from the 489-P5-HI-A20 basic display version. The 489-P5-HI-A20-E is the most installed relay in the 489 Generator Protection Series and as a result is a high demand relay.

Frequently Asked Questions (FAQ):
1.What does the E stand for in the part number 489-P5-HI-A20-E for GE generator management relays?

The E in the part number 489-P5-HI-A20-E GE Generator Management Relay stands for an enhanced display with a larger LCD than the basic display.

2.How is the generation of power displayed on the 489-P5-HI-A20-E GE generator management relay?
On the generator management relay for the part number of 489-P5-HI-A20-E, the power is generated as positive watts. An induction generator normally needs reactive power by convention, form the system for excitation.

3.What does the 489-P5-HI-A20-E generator management relay do?
The 489 GE Generator Management Relay manages synchronous and induction of the generator, it is a microprocessor-based relay that is designed to protect and manage the generator.

4.Why can't I see a price for this 489-P5-HI-A20-E?
YIn addition to "new original" " units.
we also specialize in the selling "discontinued" and hard to find industrial automation parts which tend to have a fluctuating market value. These fluctuations may make it difficult for us to provide accurate daily prices for parts on our website. Therefore, in an effort to ensure that we always provide you with the best and most accurate price available, our team will source and price your part on an enquiry-by-enquiry basis.

5.How do I get the price of 489-P5-HI-A20-E?
Please contact our sales director Ms. Sandy for a discount exclusive quote, Email plcinfo@mooreplc.com Mob/Whatsapp: +86-18020776786.

Application:

Thermal power plants and public utilities: Core protection devices of power generation units.
Petroleum and natural gas plants: Protective coatings in chemical plants.
Heavy industry manufacturing: Large manufacturing plants with their own power plants (such as steel mills, paper mills).
Critical infrastructure: Data centers, large hospitals, etc. - places that require management of backup generators.

Core Function:
This relay mainly provides the following key protections for the generator:
Electrical Protection: Generator differential (87G), overcurrent (50/51), negative sequence overcurrent (46), loss of excitation (40), etc.
Monitoring Function: Real-time monitoring of voltage, current, power factor, frequency, and bearing/winding temperature (requires RTD input).
Communication: Generally supports Modbus RTU/TCP protocol, facilitating integration into SCADA systems.