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MGFR-20-AB
I-Gard MGFR-20-AB Manuals
Manuals and User Guides for I-Gard MGFR-20-AB. We have
1
I-Gard MGFR-20-AB manual available for free PDF download: Instruction Manual
I-Gard MGFR-20-AB Instruction Manual (24 pages)
GROUND FAULT RELAY
Brand:
I-Gard
| Category:
Relays
| Size: 1.72 MB
Table of Contents
Table of Contents
3
1 Introduction
4
2 Description
5
Catalogue Numbers
5
Pick-Up Settings
5
Time-Current Characteristics
5
Display
6
Trip Indicator
7
Reset Control
7
Button Functions
8
Power-On LED
10
Pre Trip Alarm
10
Zsip
10
3 Current Sensors
10
4 Operation
11
5 Specifications
12
Scope
12
Control Power
12
Temperature Range
12
Dielectric Strength
12
Display
12
Accuracy
12
Reset
13
Trip Indicator
13
Short Circuit Withstand Capacity
13
Transient Immunity
13
Relay Contacts
13
Dropout to Pick-Up Ratio
13
Frequency Range
13
Standards (Except -AB Types)
13
6 Installation
14
Site Requirements
14
Mounting
14
7 Maintenance
14
General
14
Troubleshooting
15
TABLE of FIGURES Figure 1: Block Diagram of MGFR Relays
17
Figure 2: Time - Current Characteristics
18
Figure 3: Time - Current Characteristics
19
Figure 4: 3-Level TCP and ZSIP Connection
20
Figure 5: Connection Diagram for MGFR Relays
21
Figure 6: Connection Diagram for MGFR-SE-ZB Relays
22
Figure 7 Outline & Mounting Dimensions for MGFR Relays
23
Figure 8 Recommended Diode Protection to Reduce Switching Spikes
23
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I-Gard Categories
Protection Device
Relays
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