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Computer electronics lightning static protection 1CD
Computer n Electronics - Surge Static Lightning Protection
Computer n Electronics - Surge Static Lightning Protection on CD
Protect your expensive electronic equipment!
The purpose of this manual is to familiarize qualified personnel with problem areas of supplying electrical power to automated data processing (ADP) systems. Special emphasis is placed on areas most often overlooked or misunderstood by experienced designers and personnel responsible for maintaining an outflow of quality data from an ADP installation. ADP systems are highly reliable, but will on occasion malfunction and because of their complexity will require the services of highly skilled personnel to correct and maintain the systems.
This manual covers many inter-related aspects of an ADP installation in regard to the electrical and life-safety systems. This manual will review the systems found in the typical data center, and is not intended to provide the detailed level of understanding where arithmetic and other more advanced mathematics are required to describe or explain a given function.
Works with Windows, Mac, Unix, Linux and others.
Computer n Electronics - Surge Static Lightning Protection
Purpose 1-1 1-1 Scope 1-2 1-1 References 1-3 1-1
CHAPTER 2. FACILITY POWER SYSTEM
Dependable power system requirements 2-1 2-1 Commercial (utility) power 2-2 2-3 Power line phenomena 2-3 2-4 Power quality requirements 2-4 2-6 Power quality parameters 2-5 2-7 Detection of power line anomalies 2-6 2-8
Automated data processing power requirements 3-1 3-1 Power line disturbances 3-2 3-2 Acceptable limits for ac power 3-3 3-4 ADP protective equipment 3-4 3-5 Power distribution systems 3-5 3-15
Purpose of grounding 4-1 4-1 National electrical code (NEC) requirements for grounding 4-2 4-1 System configurations 4-3 4-4 Ground configurations 4-4 4-9 Grounding for fault protection 4-5 4-10 ADP grounding 4-6 4-16
Introduction 6-1 6-1 Codes and standards 6-2 6-3 Off-line/on-line ADP systems standby power requirements 6-3 6-3 Diesel generator standby systems 6-4 6-5 Battery standby systems 6-5 6-8 Transfer switches for standby systems 6-6 6-20 Grounding standby power systems 6-7 6-30
Lightning effects on power systems 7-1 7-1 Principals of protection 7-2 7-4 Lightning protection systems 7-3 7-5
Objective 9-1 9-1 Maintenance program 9-2 9-2 Maintenance data file 9-3 9-4 Personnel qualif ications 9-4 9-5 Dedicated maintenance equipment 9-5 9-6 Renewal parts 9-6 9-7 Continuous inspection program 9-7 9-8 Maintenance schedule 9-8 9-8 Maintenance tests 9-9 9-9 Safety 9-10 9-10 Electrical equipment fires 9-11 9-12 Equipment diagrams 9-12 9-12 Test forms 9-13 9-13
Figure 4-1 Minimum grounding requirements for ac powered isolated system 4-5 Figure 4-2 Minimum grounding requirements for battery powered isolation system 4-6 Figure 4-3 Clustered system 4-6 Figure 4-4 Basic grounding of a clustered system 4-7 Figure 4-5 Central-with-extensions system 4-9 Figure 4-6 Single phase 115/230 Vac power system ground connections 4-13 Figure 4-7 Three phase 120/208 Vac power system ground connections 4-13 Figure 4-8 Properly wired ac distribution circuits for minimum ground noise 4-14 Figure 4-9 Noise problems resulting from improper wiring 4-15 Figure 5-1 Series RLC circuit 5-10 Figure 5-2 Poles and zeros on the s-plane 5-11 Figure 5-3 Surface view of H(s) for all complex frequency in s-plane 5-12 Figure 5-4 Response vs frequency for steady state input 5-12 Figure 5-5 Phase angle and power factor vs frequency 5-13 Figure 5-6 Impedance vs frequency 5-13 Figure 5-7 Tuned passive filter 5-14 Figure 5-8 Impedance poles and zeros of tuned passive filter 5-15 Figure 5-9 Tuned passive filter with static Var control 5-15 Figure 5-10 Active load current compensation 5-1
Table Title Page Table 4-1 Summary of the effects of shock 4-11 Table 5-1 Voltage distortion limits for medium and high voltage power systems 5-2 Table 6-1 Typical range of input power quality and load parameters of major 6-2 computer manufacturers Table 6-2 Comparison of cells required for NICAD and lead acid batteries 6-19
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