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Eaton DT3000 - User Manual

Eaton DT3000
92 pages
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I.B. 17555C
Effective November 1999 Supersedes I.B. 17555A dated March 1999
Instructions for Installation, Operation and Maintenance
of the Cutler-Hammer Digitrip 3000 and Digitrip 3030
Protective Relay

Table of Contents

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Eaton DT3000 Specifications

General IconGeneral
Amperage Rating30 A
Coil Voltage120 Vac
Contact ConfigurationSPDT
TypeDefinite Purpose Contactor
Voltage Rating600 Vac
Current Rating30 A
Frequency Range50/60 Hz
Protection FunctionsOverload
Enclosure RatingOpen

Summary

SECTION 1: INTRODUCTION

1-1 Preliminary Comments and Safety Precautions

Provides preliminary remarks, safety guidelines, and warranty information for the Digitrip 3000 relay.

1-3 Functions;Features;Options

Details the primary function of overcurrent protection and highlights key relay features and options.

SECTION 2: FUNCTIONAL DESCRIPTION

2-1 Protection, Testing and Communication Capabilities

Describes the relay's protective functions, testing features, and communication abilities via INCOM.

2-3 DT3000 and DT3030 Specifications and Test Summary

Provides a comprehensive summary of technical specifications, compliance testing, and test parameters.

SECTION 3: OPERATION

3-3 Panel Operations

Covers front panel operations including pushbuttons, LEDs, display windows, characteristic curves, programming, and testing modes.

SECTION 4: APPLICATION CONSIDERATIONS

4-1 Zone Interlocking Capabilities

Explains how zone selective interlocking minimizes damage and speeds fault clearing for improved system protection.

SECTION 5: INSTALLATION, STARTUP AND TESTING

5-5 Initial Startup

Guides on applying control power, verifying wiring, and checking initial relay operation status.

SECTION 6: MAINTENANCE AND STORAGE

6-2 Troubleshooting Guide (Table 6.1)

Offers a comprehensive guide to identify and resolve probable causes for relay operational issues.

Appendix B

6.0 Application Considerations

Discusses application considerations for DSPS, including CT ratios, sensitivity, and tripping on energization.

7.0 Testing the Dual-Source Power Supply

Details in-service and lab bench test procedures to confirm the proper operation of the Dual-Source Power Supply.

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