Facilities Engineering Electrical Interior Facilities

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Facilities Engineering Electrical Interior Facilities

Facilities Engineering Electrical Interior Facilities
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Table of Contents
Table of Contents -Cont.
List of Figures
List of Tables
Chapter 1 Introduction
Priority and scheduling
Hazards
Chapter 2 Switch Gear Assemblies 600V or Less
Bus bar and terminal connections
Table 2-1. U.S. Standard Bolt Torques for Bus Connections Heat Treated Steel
Figure 2-1. Typical busway installation
Figure 2-2. Drawout circuit breaker positions
Figure 2-3. Power circuit breaker main and arcing contacts
Figure 2-4. Arcing contact gap and wipe
Operating mechanism
Figure 2-6. Main contact wipe
Network protectors
Figure 2-7. Electromechanical trip Device Time Current Curve
Auxiliary switchgear equipment
Figure 29. Network protector removable unit
Battery supplies
Figure 2-11. Large cell for a stationary battery
Switchgear trouble-shooting
Table 2-2. Trouble-shooting procedures for switchgear equipment
Table 2-2. Trouble-shooting procedures for switchgear equipment - continued
Table 2-2. Trouble-shooting procedures for switchgear equipment - continued.
Chapter 3 Transformers
Figure 31. Dry-type transformers
Chapter 4 Electric Motors
Table 4-1. Motor application guide
Table 4-1. Motor application guide--continued
Table 4-1. Motor application guide - continued
Table 4-1. Motor application guide - continued
Table 4-1. Motor application guide - continued
Table 4-1. Motor application guide - continued
Stator and rotor windings
Cleaning motor windings
Figure 4-4. Primary parts of an AC induction motor
Inspecting motor windings
Figure 4-6. Bearing installation precautions
Direct current (DC) motors
Figure 4-7. Construction of ball and roller bearings
Compound motors
Figure 410. Cutaway views of a typical DC motor
Components of DC machines
Figure 4-13. Inspecting and installing brushes on a large DC motor
Figure 4-14. Cutaway section of a commutator
Motor operating considerations
Figure 4-16. Poor Commutator Conditions: a) "Threading", b) "Streaking"
Figure 4-19. Dial gauge to measure commutator concentricity
Figure 4-20. Common undercutting mistakes
Motor insulation testing
Figure 4-21. Connections for Testing Motor Insulation Resistance: a) (Top) connections for a DC motor b) (Bottom) connections for an AC motor
Table 4-3. AC induction motor trouble-shooting
Table 4-3. AC induction motor trouble-shooting-continued
Table 4-3. AC induction motor trouble-shooting-continued
Table 4-3. AC induction motor trouble-shooting-continued
Table 4-3. AC induction motor trouble-shooting-continued
Table 4-3. AC induction motor trouble-shooting-continued
Table 4-3. AC induction motor trouble-shooting-continued
Table 4-4. AC synchronous motor trouble-shooting
Table 4-4. AC synchronous motor trouble-shooting-continued
Table 4-4. AC synchronous motor trouble-shooting-continued
Table 4-4. AC synchronous motor trouble-shooting-continued
Chapter 5 Motor Controls
Fused breaker-protected starters
Table 15-3. Interior wiring and lighting system
Resistance starters
Wye-delta starters
Components and maintenance of motor controls
Electrical connections
Routine field testing
Verification field testing
Figure 510. Cutaway view of typical molded case circuit breaker
Figure 5-11. Molded case circuit breaker time-current curve
Figure 5-12. Fuse maintenance practices
Thermal overloads
Copper contacts
Figure 5-15. Typical heater selection table for thermal overload device
Figure 5-16. A NEMA size 6 magnetic contactor (Courtesy of Siemens-Allis)
Table 5-1. Motor control preventive maintenance guide
Table 5-1. Motor control preventive maintenance guide- continued
Table 5-2. Motor control troubleshooting chart
Table 5-2. Motor control trouble-shooting chart-continued
Table 5-2. Motor control trouble-shooting chart-continued
Table 5-2. Motor control trouble-shooting chart-continued
Chapter 6 Power Cables
Overpotential testing
Figure 6-1. (Continued) c) Use of the "guard" terminal to eliminate measure of surface leakage across exposed insulation
Figure 6-1. (Continued) c) Use of the "guard" terminal to eliminate measure of surface leakage across exposed insulation -Cont.
Cable trouble-shooting
Cable trouble-shooting -Cont.
Table 6-2. Cable maintenance--overheating problems
Table 6-2. Cable maintenance--overheating problems--continued
Table 6-2. Cable maintenance--overheating problems--continued
Chapter 7 Solid State Electronic Equipment
Inspection for oil leaks
Figure 7-1. Typical Capacitor Types: a) Oil-filled AC, snubber capacity b) Electrolytic, ceramics and plastic film types for DC Applications
Semiconductor-controlled rectifier (SCR)
Figure 7-2. Diodes and SCR's: a) Various package styles, b) symbols and polarity, c) Testing a Diode, d) Testing an SCR
Figure 7-4 Testing Zener Voltage
Electrical disturbances (power quality)
Voltage surge suppression
Table 7-1. Power quality problems summary
Table 7-1. Power quality problems summary -Cont.
Table 7-1. Power quality problems summary -Cont.
Table 7-1. Power quality problems summary -Cont.
Table 7-1. Power quality problems summary -Cont.
Table 7-1. Power quality problems summary -Cont.
Table 7-1. Power quality problems summary -Cont.
Voltage regulators
Uninterruptible power supplies (UPS)
Types of grounding systems
Solidly grounded system
Figure 8-1. Typical Equipment Ground
Resistance grounded system
Figure 8-3. Methods of System Grounding
Figure 8-5. Methods of Resistance Grounding the Neutral of Three-Phase Systems
High resistance grounding
Power system grounding
Ground fault interrupting methods
Figure 8-6. Grounding for Electronic and ADP Systems: a) Establish a central grounding point, b) Principal features of an isolated grounding system
Figure 8-6. Grounding for Electronic and ADP Systems: a) Establish a central grounding point, b) Principal features of an isolated grounding system -Cont.
Receptable type
Figure 8-7. Ground fault circuit interrupter operation
Chapter 9. Illumination
High intensity discharge lighting (HID)
Low pressure sodium (LPS) lamps
Relamping
Lamp trouble-shooting
Table 9-1. Lamp Trouble-Shooting Guide
Table 9-1. Lamp Trouble-Shooting Guide -Cont.
Table 9-1. Lamp Trouble-Shooting --continued
Table 9-1. Lamp Trouble-Shooting --continued
Chapter10. Back-up,Security, and Protection Systems
Fire detection system
Smoke detectors
Table 10-1. Comparison of Fire Detectors
Monitoring systems
Monitoring systems -Cont.
Chapter 11. Hazardous Substances
Table 11-1. Common trade names for PCBs by manufacturers
Flammable liquids and gases
Chapter 12 Electrical Safety
Figure 12-1. Padlock and multiple lock adapter
Switchgear
Rotating equipment
Danger warning and fire
Figure 12-5. Eye and eye protection selection guide
Chapter 13. Test Equipment
Table 13-1. Tools and equipment for effective electrical maintenance
Table 13-1. Tools and equipment for effective electrical maintenance--continued
Clamp-on volt-ammeter
Figure 13-2. Set-up for measuring resistance
Megohmmeter
Figure 13-5. Diagram of megohmmeter connections
Harmonic measurements
Maintenance equipment guide
Chapter 14. Test Methods
Figure 14-2. Curves showing components of measured current during insulation testing
Protective relay testing
Table 14-2. Condition of insulation indicated by dielectric absorption ratios
Equipment ground resistance testing
Figure 14-7. Soil resistance vs. depth of electrode
Battery specific gravity test
Figure 14-10. Sampling the cell electrolyte
Figure 14-11. Reading the hydrometer flint
Chapter 15. Maintenance Schedules
Table 15-2. Equipment failure rate multipliers versus maintenance quality
Table 15-3. Interior wiring and lighting system
Table 15-3. Interior wiring and lighting system-continued
Table 15-4. Electric motors and controls
Table 15-4. Electric motors and controls-continued
Appendix A References
Appendix A References
Distribution

Facilities Engineering Electrical Interior Facilities