GE Multilin 745 User Manual

Overview
http://www.GEindustrial.com/multilin
2–7
GE Multilin
Specifications
745
Transformer Management Relay
TRIP RELAYS 2 TO 5
Configuration: Form A (breaker trip rated)
Contact material: silver alloy
Max. ratings: 300 V AC, 250 V DC, 15 A,
1500 VA
Make/carry: 20 A continuous;
40 A for 0.2 s (DC voltage)
80 A for 0.2 s (AC voltage)
AUXILIARY 6 TO 8 RELAYS, SELF-
TEST RELAY 9
Configuration: Form C
Contact material: silver alloy
Max. ratings: 300 V AC, 250 V DC, 15 A,
1500 VA
Make/carry: 10 A continuous
30 A for 0.2 s
Miscellaneous COMMUNICATIONS
All ports: 300 to 19200 baud,
programmable parity, Modbus
RTU protocol, DNP
CLOCK
Resolution: 1 ms
Accuracy ±1 ms with IRIG-B
±1 minute/month without
IRIG-B
Backup battery life: 10 years continuous use
HARMONICS
Range: 0.00 to 99.9%
Accuracy: ±1% of full-scale at 0.5 × CT
THD
Range: 0.00 to 99.9%
Accuracy: ±1% of full-scale at 0.5 × CT
OPERATING ENVIRONMENT
Operating temperature: –40°C to +60°C
Storage temperature: –40°C to +80°C
ambient
Humidity: up to 90% non-condensing
Altitude: 2000 m
Pollution degree: II
CASE
Drawout: Fully drawout unit (automatic
CT shorts)
Seal: Seal provision
Door: Dust tight door
Panel: Panel or 19" rack mount
Weight (case and relay): 18 lbs., 6 oz.
IP class: X0
PRODUCTION TESTS
Thermal: Operational test at ambient
then increasing to 60°C
Dielectric Strength: per IEC 255-5 and ANSI/
IEEE C37.90 on CT inputs, VT
inputs, Control Power inputs,
Switch inputs, and Relay
outputs (2 kV for 1 second)
Voltage Break Max
Load
DC
Resistive
30 V DC 10 A 300 W
125 V DC 0.8 A 300 W
250 V DC 0.4 A 300 W
DC
Inductive
L/R = 40 ms
30 V DC 5 A 150 W
125 V DC 0.3 A 150 W
250 V DC 0.2 A 150 W
AC
Resistive
120 V AC 20 A 5000 VA
240 V AC 20 A 5000 VA
AC Inductive
PF = 0.4
120 V AC 8 A 5000 VA
240 V AC 7 A 5000 VA
Voltage Break Max
Load
DC
Resistive
30 V DC 10 A 300 W
125 V DC 0.5 A 62.5 W
250 V DC 0.3 A 75 W
DC
Inductive
L/R = 40 ms
30 V DC 5 A 150 W
125 V DC 0.25 A 31.3 W
250 V DC 0.15 A 37.5 W
AC
Resistive
120 V AC 10 A 2770 VA
240 V AC 10 A 2770 VA
AC Inductive
PF = 0.4
120 V AC 4 A 480 VA
240 V AC 3 A 750 VA

GE Multilin 745 Specifications

General

Brand	GE
Model	Multilin 745
Category	Relays
Language	English