Already a subscriber? 
MADCAD.com Free Trial
Sign up for a 3 day free trial to explore the MADCAD.com interface, PLUS access the
2009 International Building Code to see how it all works.
If you like to setup a quick demo, let us know at support@madcad.com
or +1 800.798.9296 and we will be happy to schedule a webinar for you.
Security check
Please login to your personal account to use this feature.
Please login to your authorized staff account to use this feature.
Are you sure you want to empty the cart?
IEEE Recommended Practice for Motor Protection in Industrial and Commercial Power Systems, 2016
- IEEE Std 3004.8™-2016 Front cover
- Title page
- Important Notices and Disclaimers Concerning IEEE Standards Documents
- Participants
- Introduction
- Contents
- List of Figures
- List of Tables
- 1. Scope
- 2. Normative references
- 3. Definitions, abbreviations, and acronyms [Go to Page]
- 3.1 Definitions
- 3.2 Acronyms and abbreviations
- 4. General discussion [Go to Page]
- 4.1 Introduction
- 4.2 Low-voltage systems
- 4.3 Medium-voltage systems
- 5. Factors to consider in protection of motors [Go to Page]
- 5.1 Motor characteristics
- 5.2 Motor-starting conditions
- 5.3 Ambient conditions
- 5.4 Driven equipment
- 5.5 Power system quality
- 5.6 Motor importance
- 5.7 Load side faults for motor controllers
- 5.8 Ground faults
- 5.9 Maintenance capability and schedule
- 5.10 Service factor
- 5.11 Application considerations
- 5.12 Motor and conductor protection
- 5.13 Fixed capacitor applications
- 6. Types of protection [Go to Page]
- 6.1 Purpose of motor protection
- 6.2 Abnormal power supply conditions
- 6.3 Phase unbalance protection (Device 46, current) (Device 47, voltage) (Device 60)
- 6.4 Overcurrent protection (Device 51, inverse time) (Device 50, instantaneous)
- 6.5 Ground fault relay
- 6.6 Underexcitation (loss of field) protection (Device 40)
- 6.7 Overexcitation (volts/hertz) protection (Device 24)
- 6.8 Bearing protection relay (Device 38)
- 6.9 Mechanical condition protection relay (Device 39)
- 6.10 Thermal and electronic overload protection (Device 49)
- 6.11 Motor bus automatic transfer or reclosing
- 6.12 Multifunction relay (Device 11)
- 7. Low-voltage (LV) motor protection [Go to Page]
- 7.1 Introduction
- 7.2 Low-voltage motor overcurrent protection
- 7.3 Low-voltage motor ground fault protection
- 7.4 Low-voltage motor stator winding overtemperature (Device 49S)
- 7.5 Low-voltage motor undervoltage protection
- 8. MV motor protection [Go to Page]
- 8.1 Introduction
- 8.2 MV motor thermal overload protection (Device 49)
- 8.3 MV motor overcurrent protection
- 8.4 Fault protection
- 8.5 Monitors
- 8.6 Synchronous motor protection
- 8.7 Starting protection
- 8.8 Rotor winding protection
- 8.9 Lightning and surge protection
- 8.10 Protection against overexcitation from shunt capacitance
- 8.11 Protection against failure to rotate
- 9. Protection for ac ASD applications [Go to Page]
- 9.1 ASD general information
- 9.2 Low voltage ac ASD motor protection
- 9.3 MV ac ASD motor protection
- 10. LV dc motor protection [Go to Page]
- 10.1 General
- 10.2 Potential failure conditions
- 10.3 LV dc motor protection methods
- 10.4 Safety interlocks
- 10.5 Ambient environmental protection
- 11. Motor protection for hazardous (Classified) locations [Go to Page]
- 11.1 General
- 11.2 Motor protection for Class I, Division 2, and Class I, Zone 2 areas
- 11.3 Motor protection for Class II areas
- Annex A (informative) Bibliography
- Annex B (informative) IEEE device designations [Go to Page]
- B.1 Typical motor protection device function numbers
- B.2 Main device letters
- B.3 Other suffix letters
- B.4 Auxiliary devices
- B.5 Auxiliary contact position definitions
- Annex C (informative) Motor condition monitors, online [Go to Page]
- C.1 On-line partial discharge (OLPD) monitoring
- C.2 MV monitoring motor insulation online
- Annex D (informative) Motor protection examples [Go to Page]
- D.1 Typical medium-voltage (MV) motor protection settings
- D.2 MV breaker start example
- Annex E (informative) Motor open circuit time constant
- Back cover [Go to Page]
