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BE1-50/51B-101
Instruction manual
Basler BE1-50/51B-101 Instruction Manual
Be1-50/51b series overcurrent relay
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Contents
Table of Contents
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Table of Contents
Table of Contents
Section 1 • General Information
Figure 1-1. BE1-50/51B, S1 Case
Model Numbers
Table 1-1. BE1-50/51B Overcurrent Relays, One Ampere CT Secondary, 50/60 Hz
Table 1-2. BE1-50/51B Overcurrent Relays, Five Ampere CT Secondary, 50/60 Hz
Specifications
Current Sensing Input
Time Overcurrent (51) Element
Table 1-3. Time Characteristic Curve Constants with SW3-3 Open (Off) (Series 100 Relays or Series 200 Relays)
Table 1-4. Time Characteristic Curve Constants with SW3-3 Closed (On) (Series 200 Relays)
Instantaneous Overcurrent (50) Element
Figure 1-2. Integrating Reset Characteristic Curve
Figure 1-3. Instantaneous Characteristic Curves
Burden
Frequency Response
Transient Response
Harmonic Response
Figure 1-4. Burden Characteristics
Target Indicators
Output Contacts
AUX Output Contact
Type Tests
Figure 1-5. Harmonic Rejection
Environment
Agency Recognition
Section 2 • Controls and Indicators
Section 3 • Functional Description
Section 4 • Installation
Section 4 • Installation
General
Mounting
Connections
Maintenance
Storage
Section 5 • Testing
Dielectric Test
General
Operational Test Procedure
Test Equipment Required
Test Procedure for Five Ampere Units
Test Procedure for One Ampere Units
Section 5 • Testing
Periodic Tests
General
Periodic Test
Setting the Relay
Section 6 • Relay Differences
Appendix A • Time Characteristic Curves
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1
Section 1 • General Information
2
Figure 1-1. Be1-50/51B, S1 Case
3
Table 1-2. Be1-50/51B Overcurrent Relays, Five Ampere Ct Secondary, 50/60 Hz
4
Time Overcurrent (51) Element
5
Table 1-3. Time Characteristic Curve Constants with Sw3-3 Open (Off) (Series 100 Relays or Series 200 Relays)
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INSTRUCTION MANUAL
FOR
OVERCURRENT RELAY
BE1-50/51B
Publication: 9252000991
Revision: N
03/08
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Section 4 • Installation
31
Section 5 • Testing
41
Table of Contents
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This manual is also suitable for:
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