489-P5-LO-A20-E-H generator management relay

Description

489-P5-LO-A20-E-H generator management relay

Product Description

I. Product overview

The 489-P5-LO-A20-E-H is a generator management relay manufactured by GE Multilin as part of the Multilin 489 series. The relay is designed for generator protection and can be used in induction or synchronous generators to ensure stable operation and increase power generation efficiency.

Second, product characteristics

Electrical parameters:
Frequency: can operate at 25, 50 or 60 Hz.
Frequency parameter range: 0.00 to 90.00 Hz.
Neutral line voltage (3rd) Parameter range: 0 to 25000 V.
Power factor parameters range: 0.01 to 1.00 Lead/lag.
Reactive power (Mvar) parameter range: -2.00 to 2.00 times rated voltage.
Relay parameters:
Phase CT secondary: 5A.
LO control power: 20-60 VDC, 48-62 VAC at 20-48 Hz.
Analog output: 4 to 20 mA.
Displays and panels:
Features a 40-character display that allows users to view value messages, diagnostics, and setting points.
The front panel includes multiple status leds, input buttons, numeric keypads, input ports, and an LCD screen for reading device position information.
Communication and interface:
The rear panel includes twelve RTD inputs, six output relays, two RS485 communication ports, and four VT inputs.
The communication port supports ModbusRTU or DNP 3.0 protocols (or both) up to 19200 bps.
Also included are four isolated 4-20 mA analog inputs and outputs and seven assignable digital inputs.
Design and installation:
Compact structure, small size, easy to install and maintain.
The shipping weight is 10 kg (approximate) and the dimensions are 21.6 cm (L) x 22.4 cm (W) x 25.2 cm (H).
Protection function:
It has high reliability, long life and perfect protection function (such as overload protection, short circuit protection, undervoltage protection, overvoltage protection, etc.).
It can automatically adjust according to the actual situation of the generator to maintain the stable operation of the generator.

SR489-P5-HI-A20-E-H

Product parameter

Application field

489-P5-LO-A20-E-H generator management relay has a wide range of applications, which can mainly be summarized in the following aspects:

Electric power plants:
In electric power plants, 489-P5-LO-A20-E-H can be used to monitor the operating status of generators and protect them from overcurrent, overvoltage, loss of power and other failures. Its powerful electrical parameters and perfect protection function ensure the stable operation of the generator.
Industrial power generation:
In the industrial sector, the relay may be used in generator sets to ensure the stability and reliability of the power supply to factories or industrial equipment. Its compact structure and ease of installation make it more convenient to use in industrial environments.
Marine and Marine Engineering:
In Marine and offshore engineering, generator management relays can be used to monitor generator systems on ships or offshore platforms to ensure the safety and reliability of the power system. Its resistance to extreme temperatures and chemicals allows stable operation in Marine environments.
Power distribution system:
The product can also be used in power distribution systems to ensure stable operation of generators supplying power to the grid and timely protection in case of failure. Its communication and interface capabilities make it easy to integrate and monitor in power distribution systems.
Construction and commercial sectors:
In buildings and commercial buildings, generator management relays may be used in backup power systems to ensure reliable power supply in the event of a primary power failure. Its ease of installation and maintenance makes it more popular in commercial applications.
Mining and Oil and Gas:
In mining and oil and gas production, generator management relays may be used to protect generator systems and ensure continuous operation of equipment and processes. Its high reliability and long life make it particularly important for applications in the mining and oil and gas industries.
Medical facilities:
In medical facilities, generator management relays can be used in backup power systems to ensure the normal operation of medical equipment in the event of a power outage. Its ability to respond quickly and provide accurate protection is critical for medical facilities.
In summary, the 489-P5-LO-A20-E-H generator management relay, with its strong electrical parameters, complete protection function, easy installation and maintenance characteristics, as well as communication and interface functions, It is widely used in electric power plants, industrial power generation, Marine and offshore engineering, power distribution systems, construction and commercial fields, mining and oil and gas industries, and medical facilities.

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