Description
The SR489-P1-LO-A20-E relay module is the basic unit of a generator management relay manufactured by GE Multilin
1、 Basic Information
Model: SR489-P1-LO-A20-E
Manufacturer: GE Multilin
2、 Technical specifications
Control power supply:
Direct current (DC): 20~60V
Communication (AC): 20~48V
Frequency: 48~62Hz
This means that the relay can operate stably under a wide range of power conditions.
Analog output: 4 to 20mA, this standardized current output can be easily integrated with other devices or systems.
Basic display: This relay is equipped with a basic display unit that can display key information such as current status, fault information, etc.
3、 Functional Features
Trip protection function:
Electrical lockout analog inputs 1 to 4
Thermal overload
RTD (stator, bearings, environment, others)
Low forward power
Reverse power of anti motor
Demagnetization reactive power (kvar)
Distance components (2 protected areas)
Demagnetization (2 impedance coils)
Neutral point undervoltage (3rd harmonic)
Neutral point overvoltage (fundamental wave)
Overfrequency (two-step)
Underfrequency (two-step)
High – Set phase overcurrent
Grounding direction
Percentage phase difference
Grounding overcurrent
Negative sequence overcurrent
Phase overcurrent with voltage limitation
Unexpected power on
Offline overcurrent protection during startup
Seven assignable numerical inputs
Alarm protection function:
IRIG-B malfunction
Service (self check fault)
Analog inputs 1 to 4
Generator operating time
Demand (current MW, Mvar, MVA)
VT fuse failure
Trip counter
Thermal overload
Open circuit RTD
Short circuit/low RTD
RTD (stator, bearings, environment, others)
Low forward power
Reverse power
Reactive power (kvar)
Neutral point undervoltage (third harmonic)
Neutral point overvoltage (fundamental wave)
Overfrequency
Undervoltage frequency
Volt/Hertz
Overvoltage
Undervoltage
Grounding direction
Grounding overcurrent
negative sequence
overload
Seven assignable digital inputs (universal input and tachometer)
4、 Physical characteristics
Appearance: Usually black in color, with a compact structural design.
Size: may vary slightly depending on the manufacturer and specific model, but is usually suitable for standard rail installation.
Weight: Moderate, easy to install and maintain.
5、 Application environment
This relay module does not have a protective conformal coating to prevent chemical environments, so extra caution is required when using it in environments with corrosive or harmful chemicals.
It is commonly used in industrial automation and control systems to monitor and protect power equipment such as generators from potential faults and overloads.
6、 Precautions
When installing and using the SR489-P1-LO-A20-E relay module, please be sure to follow the product manual and safety specifications.
Regularly maintain and inspect the relay module to ensure its long-term stable operation.
If you encounter any malfunctions or problems, please contact the manufacturer or professional maintenance personnel in a timely manner for handling.
Partial stock in stock, please contact me for more information:
MTL 8115-DO-DC
MTL 8724-CA-PS
MTL 8220-DI-IS
MTL 8215-DO-IS
MTL 8521-RT-DE
BENTLY 288055-01
ABB ICS008R1
ABB 07KR31
GE DS200UCPBG6AFB
MTL 8507-BI-DP
LAM 839-019090-611
LAM 810-068158-014
LAM 660-072825-200
LAM 660-072826-200
REXROTH CSH01.3C-PB-ENS-MEM-CCD-S2-S-NNFW
YOKOGAWA SAI143-H53
Honeywell TC-IDD321
Honeywell TC-ODD321
GE IC800SSI228RD2
kollmorgen 6SM 57M-3.000
ABB PFTL301E 0.1KN 3BSE019050R100
MKS AX8407
Reviews
There are no reviews yet.