GE Multilin 850 User Manual

850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL I
Table of Contents
1.INTRODUCTION Overview .............................................................................................................................................. 1 - 1
Description of the 850 Feeder Protection System............................................................ 1 - 2
Security Overview............................................................................................................................ 1 - 7
850 Order Codes............................................................................................................................... 1 - 8
Specifications...................................................................................................................................1 - 11
Device .......................................................................................................................................................... 1 - 11
Protection................................................................................................................................................... 1 - 11
Control......................................................................................................................................................... 1 - 21
Monitoring.................................................................................................................................................. 1 - 23
Recording................................................................................................................................................... 1 - 24
User-Programmable Elements ........................................................................................................ 1 - 25
Metering...................................................................................................................................................... 1 - 26
Inputs ...........................................................................................................................................................1 - 28
Outputs........................................................................................................................................................ 1 - 29
Power Supply ........................................................................................................................................... 1 - 31
Communications .................................................................................................................................... 1 - 31
Testing & Certification.......................................................................................................................... 1 - 32
Physical....................................................................................................................................................... 1 - 33
Environmental.......................................................................................................................................... 1 - 33
Cautions and Warnings ..............................................................................................................1 - 34
Safety words and definitions............................................................................................................ 1 - 34
General Cautions and Warnings.....................................................................................................1 - 34
Must-read Information................................................................................................................1 - 37
Storage........................................................................................................................................................ 1 - 38
For Further Assistance.................................................................................................................1 - 38
Repairs......................................................................................................................................................... 1 - 38
2.INSTALLATION Mechanical Installation................................................................................................................. 2 - 1
Product Identification..............................................................................................................................2 - 1
Dimensions...................................................................................................................................................2 - 2
Mounting .......................................................................................................................................................2 - 3
Standard Panel Mount.............................................................................................................................2 - 4
Depth Reducing Collar.............................................................................................................................2 - 5
Draw-out Unit Withdrawal and Insertion ......................................................................................2 - 7
Removable Power Supply .....................................................................................................................2 - 8
Removable Magnetic Module..............................................................................................................2 - 9
Arc Flash Sensor ..................................................................................................................................... 2 - 10
Sensor Fiber Handling & Storage....................................................................................................2 - 10
Sensor Installation..................................................................................................................................2 - 10
Electrical Installation ....................................................................................................................2 - 11
Typical Wiring Diagram....................................................................................................................... 2 - 11
Terminal Identification......................................................................................................................... 2 - 13
Wire Size......................................................................................................................................................2 - 17
Phase Sequence and Transformer Polarity............................................................................... 2 - 18
Ground CT Inputs.................................................................................................................................... 2 - 18
Voltage Inputs.......................................................................................................................................... 2 - 20
Restricted Earth Fault Inputs ............................................................................................................2 - 20
Zero-Sequence CT Installation......................................................................................................... 2 - 21
Control Power........................................................................................................................................... 2 - 22
Contact Inputs ......................................................................................................................................... 2 - 22
Output Relays .......................................................................................................................................... 2 - 23

GE Multilin 850 Specifications

General

Brand	GE
Model	Multilin 850
Category	Protection Device
Language	English