Specifications - GE 489 Instruction Manual
Generator management relay
Hide thumbs
Also See for 489:
- Instruction manual (314 pages) ,
- Communications manual (78 pages) ,
- Instruction manual (38 pages)
Table of Contents
1.2 SPECIFICATIONS
1.2 SPECIFICATIONS
1
POWER SUPPLY
Options:
LO Range:
HI Range:
Power:
Proper operation time without supply voltage: 30 ms
AC ANALOG INPUTS FREQUENCY TRACKING
Frequency Tracking:
OUTPUT AND NEUTRAL END CURRENT INPUTS
CT Primary:
CT Secondary:
Conversion Range:
Accuracy:
Burden:
CT Withstand:
GROUND CURRENT INPUT
CT Primary:
CT Secondary:
Conversion Range:
50:0.025 CT Accuracy:
1 A / 5 A CT Accuracy:
GROUND CT BURDEN
GROUND
INPUT
CT
1 A / 5 A
1 A
5 A
20 A
50:0.025
0.025 A
HGF
0.1 A
0.5 A
GROUND CT CURRENT WITHSTAND (
GROUND CT
1 SEC.
80 × CT
1 A / 5 A
50:0.025 HGF
N/A
1-4
LO / HI
(must be specified when ordering)
DC: 20 to 60 V DC
AC: 20 to 48 V AC at 48 to 62 Hz
DC: 90 to 300 V DC
AC: 70 to 265 V AC at 48 to 62 Hz
45 VA (max), 25 VA typical
Va for wye, Vab for open delta
6 V minimum, 10 Hz/sec.
10 to 50000 A
1 A or 5 A (must be specified with order)
0.02 to 20 × CT
at < 2 × CT: ±0.5% of 2 × CT
at ≥ 2 × CT: ±1% of 20 × CT
Less than 0.2 VA at rated load
1 second at 80 times rated current
2 seconds at 40 times rated current
continuous at 3 times rated current
10 to 10000 A (1 A / 5 A CTs)
1 A / 5 A or 50:0.025 (HGF CTs)
0.02 to 20 × CT for 1 A / 5 A CTs
0.0 to 100 A pri. for 50:0.025 CTs (HGF)
± 0.1 A at < 10 A
± 1.0 A at ≥ 10 to 100 A
at < 2 × CT: ±0.5% of 2 × CT
≥
2 × CT: ±1% of 20 × CT
at
BURDEN
Ω
VA
0.024
0.024
0.605
0.024
9.809
0.024
0.057
90.7
0.634
90.7
18.9
75.6
SECONDARY
WITHSTAND TIME
2 SEC.
CONTINUOUS
40 × CT
3 × CT
N/A
150 mA
489 Generator Management Relay
PHASE VOLTAGE INPUTS
VT Ratio:
VT Secondary:
Conversion Range:
Accuracy:
Max. Continuous:
Burden:
NEUTRAL VOLTAGE INPUT
VT Ratio:
VT Secondary:
Conversion Range:
Accuracy:
Max. Continuous:
DIGITAL INPUTS
Inputs:
External Switch:
489 Sensor Supply:
RTD INPUTS
RTDs (3 wire type):
RTD Sensing Current:
Isolation:
Range:
Accuracy:
Lead Resistance:
No Sensor:
Short/Low Alarm:
TRIP COIL SUPERVISION
Applicable Voltage:
Trickle Current:
ANALOG CURRENT INPUTS
Current Inputs:
Input Impedance:
Conversion Range:
)
Accuracy:
Type:
Analog Input Supply:
Sampling Interval:
COMMUNICATIONS PORTS
RS232 Port:
RS485 Ports:
RS485 Baud Rates:
R S 232 B aud R ate:
Parity:
Protocol:
1 INTRODUCTION
1.2.1 SPECIFICATIONS
1.00 to 240.00:1 in steps of 0.01
200 V AC (full-scale)
0.02 to 1.00 × Full Scale
±0.5% of Full Scale
280 V AC
> 500 KΩ
1.00 to 240.00:1 in steps of 0.01
100 V AC (full-scale)
0.005 to 1.00 × Full Scale
±0.5% of Full Scale
280 V AC
9 opto-isolated inputs
dry contact < 400 Ω, or open collector
NPN transistor from sensor
6 mA sinking from internal 4K pullup at
24 V DC with Vce < 4 V DC
24 V DC at 20 mA max.
100 Ω Platinum (DIN.43760)
100 Ω Nickel, 120 Ω Nickel,
10 Ω Copper
5 mA
36 Vpk
(isolated with analog inputs and outputs)
–50 to +250°C
±2°C for Platinum and Nickel
±5°C for Copper
25 Ω Max per lead
>1 kΩ
< –50°C
20 to 300 V DC/AC
2 to 5 mA
0 to 1 mA, 0 to 20 mA, 4 to 20mA
(setpoint)
226 Ω ±10%
0 to 2 mA
±1% of full scale
Passive
+24 V DC at 100 mA max.
50 ms
1, Front Panel, non-isolated
2, Isolated together at 36 Vpk
300, 1200, 2400, 4800, 9600, 19200
9600
None, Odd, Even
®
Modbus
RTU / half duplex, DNP 3.0
GE Power Management
Table of Contents
