Related Manuals for Eaton CUTLER-HAMMER MD-3000 series
Summary of Contents for Eaton CUTLER-HAMMER MD-3000 series
- Page 1 IB02602001E INSTRUCTIONS FOR INSTALLATION, OPERATION AND MAINTENANCE OF THE CUTLER-HAMMER MD-3000 SERIES OF PROTECTIVE RELAYS Effective March 2006 Initial Release per IQ-10256...
- Page 2 Effective March 2006 Initial Release per IQ-10256...
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Page 3: Table Of Contents
MD-3000 Instruction Leaflet IB02602001E Effective: Date 03/2006 Page TABLE OF CONTENTS SECTION 1: INTRODUCTION 1-1 PRELIMINARY COMMENTS AND SAFETY PRECAUTIONS 1-1.1 WARRANTY AND LIABILITY INFORMATION 1-1.2 SAFETY PRECAUTIONS 1-2 GENERAL INFORMATION 1-3 FUNCTIONS/FEATURES/OPTIONS 1-4 STANDARDS SECTION 2: FUNCTIONAL DESCRIPTION 2-1 PROTECTION, , AND TESTING SETTINGS 2-1.1 RMS SENSING... -
Page 4: Section 1: Introduction
NOTE: THE TERM “MD-3000”, AS USED IN THIS This technical document describes installation, application, INSTRUCTION BOOK IB02602001E, APPLIES TO ALL operation, and maintenance of the Eaton Cutler-Hammer MD-3000 FAMILY PRODUCT STYLES LISTED IN MD-3000 Family of Protective Relays. TABLES 1.1 AND 1.2 This document is provided as a guide for authorized and Table 1.1 shows all of the MD-3000 Family products that... -
Page 5: 1-1.1 Warranty And Liability Information
DESCRIPTIONS CONTAINED HEREIN. THE LOSS OF CONTROL VOLTAGE WILL CAUSE THE MD-3000 TO BE INOPERABLE. IF AC In no event will Eaton Cutler-Hammer be responsible to CONTROL VOLTAGE IS USED AN APPROPRIATE the purchaser or user in contract, in tort (including... -
Page 6: Standards
on the front of the relay, via the two display windows. This conductors and equipment. The root-mean-square (rms) is considered “ON DEVICE” information. value is determined by a microprocessor calculation of discrete sampled points of the current waveform. This rms In addition to being able to provide a circuit breaker value is used for the protection response and metering “OPEN”... - Page 7 Instruction Leaflet MD-3000 IB02602001E Effective: Date 03/2006 For the purpose of familiarization, the panel is divided into three sub-sections: Test Pushbutton (Yellow) The selected test operation is initiated by pressing and Pushbuttons releasing the Test pushbutton. LED’s Display Windows Select Settings Pushbutton (Blue) In the program mode, the Select Settings pushbutton is Pushbuttons: The front operations panel supports eleven used to step to the next set point.
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Page 8: 2-2.2 Rear Access Panel
differential overcurrent pickup set point is being viewed in connections to the MD-3000 Protective Relay are made at the unit’s normal operating mode. The LED will blink red the chassis’ rear. For the sake of uniform identification, the whenever the load current exceeds the differential frame of reference used when discussing the rear access overcurrent pickup set point. - Page 9 Instruction Leaflet MD-3000 IB02602001E Effective: Date 03/2006 ranges outlined in “UL Testing and Specification Summary.” 2-3 MD-3000 SPECIFICATIONS AND TEST SUMMARY COMPLIANCE TESTING: OUTPUT TRIP CONTACTS: Certifications: (Differential Trip) • • CUL/UL Recognized, File # E154862 Momentary: • Make 30A ac/dc for 0.25 sec CAN/CSA C22.2 No.
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Page 10: Section 3: Operation
To enter the Program Mode, open the protective access cover and press and release the Program Mode On/Off SECTION 3: OPERATION pushbutton. The Program LED will blink green, indicating 3-1 INTRODUCTION that the Program Mode has been entered. The present This section specifically describes the operation and value of the first set point to be programmed (Differential functional use of the MD-3000 Protective Relay. -
Page 11: Test Mode
Instruction Leaflet MD-3000 IB02602001E Effective: Date 03/2006 3-4 TEST MODE 4-2.1 CUTOUT The Test Mode is not intended for live primary current Since the MD-3000 Protective Relay is typically mounted interruption, but periodic tests that verify the functional on a cabinet door, it is necessary to prepare a cutout in performance of the relay. - Page 12 Fig. 4-1 Cutout Dimensions (Inches) For more information visit: www.EatonElectrical.com Initial Release...
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Page 13: Wiring
Fig. 4-2 MD-3001 Protective Dimensions (Inches) 4-3 WIRING The wiring of the MD-3000 Protective Relay must follow a suitable “wiring plan drawing.” The term wiring plan, as used here, refers to the drawings made for the specific application. It describes all electrical connections between the MD-3000 and external equipment. - Page 14 Instruction Leaflet MD-3000 IB02602001E Effective: Date 03/2006 Fig. 4-3 MD-3000 Typical Wiring Diagram (With fault condition shown on phase C) Note: The above diagram shows a common wiring scheme when the relay is used in conjunction with a breaker. The Differential Trip or the Trip Alarm contact could alternatively be wired to a discrete input of the MP-3000 or MP-4000 to trip the motor.
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Page 15: 4-5.1 Before Power Application
5-1.1 STORAGE The MD-3000 Protective Relay should be stored in an 4-5 INITIAL STARTUP environment that does not exceed the specified storage Use this information when first applying control power to temperature range of -40°C to +70°C. The environment the MD-3000 Protective Relay. should also be free of excess humidity. - Page 16 Instruction Leaflet MD-3000 IB02602001E Effective: Date 03/2006 rear of the relay. Carefully lay the screws aside for later use. Step 8: Replace each wire at the correct terminal. Be sure that each is firmly tightened. Remove temporary shorts on incoming current transformers. Step 9: Restore control power.
- Page 17 TABLE 5.1 TROUBLESHOOTING GUIDE Symptom Probable Cause Possible Solution(s) Reference • • • Operational LED is Protective Relay’s Control Verify that Control Power is Connected Paragraph 2-3 Power is Deficient or Between TB1 -5 and B1 -6 and that it is Absent within Specifications •...
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Page 18: A1.0 Introduction
Dimensions. If a standard IQ cutout exists, no additional panel setup is required; the Drawout will mount in the APPENDIX A existing hole cutouts. A1.0 INTRODUCTION Appendix A describes the Drawout Case option for the A3.2 MD-3001 DRAWOUT RELAY PARTS LIST MD-3000 Protective Relay. - Page 19 Fig. A-2 MD-3001 Panel Mounting Unused Unused Unused Unused Unused Unused Unused Power Supply Input Unused Current Input Unused Unused Unused Unused For more information visit: www.EatonElectrical.com Initial Release...
- Page 20 Instruction Leaflet MD-3000 IB02602001E Effective: Date 03/2006 MD 3001 Motor Differential Drawout Case Power Supply Input. . Term. 17/19 AC 120-240 Vac, 50/60 Hz DC 48-250 Vdc Caution - Refer to Instruction Leaflet Fig. A-3 Rear View of MD-3001 Drawout Enclosure For more information visit: www.EatonElectrical.com Initial Release...
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Page 21: A5.0 Drawout Operation
Fig. A-4 MD 3001 Typical Wiring Diagram A5.0 DRAWOUT OPERATION THE MD-3001 INNER CHASSIS MUST BE FULLY INSERTED AND FULLY LATCHED IN TO ITS A5.1 INSERTING THE RELAY DRAWOUT ENCLOSURE FOR PROPER Before the MD-3001 is inserted into the Drawout OPERATION OF THE DEVICE. - Page 22 Instruction Leaflet MD-3000 IB02602001E Effective: Date 03/2006 ELECTRIC SHOCK IS PRESENT. ALWAYS DISCONNECT ANY CONTROL OR SOURCE POWER BEFORE TOUCHING ANYTHING ON THE INTERNAL OR EXTERNAL PARTS OF THE DRAWOUT OUTER CASE. When removing the Inner Chassis from the Drawout Outer Case, first remove any locking ring that has been installed.
- Page 23 MERCHANTABILITY, OR WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE, ARE MADE REGARDING THE INFORMATION, RECOMMENDATIONS AND DESCRIPTIONS CONTAINED HEREIN. Eaton Corporation Cutler-Hammer business unit 1000 Cherrington Parkway Moon Township, PA 15108-4312 IB02602001E / Style # 66A2279H01 for technical support: www.EatonElectrical.com...