Sel SEL-487E-4 Protection Relay Manuals

Manuals and User Guides for Sel SEL-487E-4 Protection Relay. We have 1 Sel SEL-487E-4 Protection Relay manual available for free PDF download: Manual

Sel SEL-487E-4 Manual

Sel SEL-487E-4 Manual (37 pages)

Transformer Protection Relay

Brand: Sel | Category: Relays | Size: 2.97 MB

Table of Contents

Functional Overview
4
Protection Features
4
Differential Element
4
Distance Elements
5
Out-Of-Step Detection
6
Synchronism Check
7
Current Unbalance Elements
7
Distance Protection
8
Additional Features
9
Front Panel Display
9
Bay Control
9
Alarm Points
11
Communications Features
12
Ethernet Card
12
SNTP Time Synchronization
13
Metering and Monitoring
16
Event Summary
17
Through-Fault Event Monitor
19
Models and Options
23
Specifications
25
Type Tests
27
Reporting Functions
28
Processing Specifications
29
Relay Element Pickup Ranges and Accuracies
29
Metering Accuracy
32
Technical Support
33

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