Dielectric Strength - GE L90 Instruction Manual
Line differential relay
ur series
Hide thumbs
Also See for L90:
- Instruction manual (900 pages) ,
- Communications manual (532 pages) ,
- Communications manual (526 pages)
Table of Contents
3 HARDWARE
The dielectric strength of the UR-series module hardware is shown in the following table:
Table 3–1: DIELECTRIC STRENGTH OF UR-SERIES MODULE HARDWARE
MODULE
MODULE FUNCTION
TYPE
1
Power Supply
1
Power Supply
1
Power Supply
2
Reserved
3
Reserved
4
Reserved
5
Analog Inputs/Outputs
6
Digital Inputs/Outputs
G.703
7
RS422
8
CT/VT
9
CPU
Filter networks and transient protection clamps are used in module hardware to prevent damage caused by high peak volt-
age transients, radio frequency interference (RFI) and electromagnetic interference (EMI). These protective components
can be damaged by application of the ANSI/IEEE C37.90 specified test voltage for a period longer than the specified one
minute.
GE Multilin
TERMINALS
FROM
High (+); Low (+); (–)
48 V DC (+) and (–)
Relay Terminals
N/A
N/A
N/A
All except 8b
All (See Precaution 2)
All except 2b, 3a, 7b, 8a
All except 6a, 7b, 8a
All
All
L90 Line Differential Relay
3.2.2 DIELECTRIC STRENGTH
DIELECTRIC STRENGTH
(AC)
TO
Chassis
2000 V AC for 1 minute
Chassis
2000 V AC for 1 minute
Chassis
2000 V AC for 1 minute
N/A
N/A
N/A
N/A
N/A
N/A
Chassis
< 50 V DC
Chassis
2000 V AC for 1 minute
Chassis
2000 V AC for 1 minute
Chassis
< 50 V DC
Chassis
2000 V AC for 1 minute
Chassis
2000 V AC for 1 minute
3.2 WIRING
3
3-7
Table of Contents
