Introduction

翻译出版说明

National　Energy　Administration　Announcement

Foreword

1　General　Provisions

2　Terms

3　Auxiliary　Power　System　Wiring

• 3.1　Load　Classification

• 3.2　Auxiliary　Power　System　Voltage　Class

• 3.3　Electrical　Energy　Quality

• 3.4　Earthing　Methods　of　Neutral　Point　of　Auxiliary　Power　System

• 3.5　Wiring　Modes　of　Auxiliary　Power　Busbars

• 3.6　Auxiliary　Operating　Power　Supply

• 3.7　Auxiliary　Standby　and　Startup/Standby　Power　Supply

• 3.8　AC　Emergency　Power　Supply

• 3.9　Uninterruptible　Power　Supply

• 3.10　Wiring　and　Supply　Mode　of　Auxiliary　Loads

• 3.11　LV　Maintenance　Power　Supply　Network

4　Selection　of　Auxiliary　Transformer/Reactor　and　Check　of　Motor　Voltage　during　Startup

• 4.1　Load　Capacity　Calculation

• 4.2　Transformer/Reactor　Sizing

• 4.3　Voltage　Regulation　and　Regulating　Modes

• 4.4　Short-circuit　Impedance　Selection

• 4.5　Check　of　Voltage　of　Auxiliary　Buses　and　Motors　during　Normal　Starting

• 4.6　Check　of　Voltage　of　Auxiliary　Busbars　during　Grouped　Motors　Self-starting

• 4.7　Harmonics　Restraining

5　Motors

• 5.1　Type　Selection

• 5.2　Rating　of　Voltage　and　Check　of　Capacity

6　Short-circuit　Current　Calculation　and　Electrical　Equipment　and　Conductor　Selection

• 6.1　Short-circuit　Current　Calculation　in　MV　Auxiliary　Power　System

• 6.2　MV　Electrical　Equipment　Selection

• 6.3　Short-circuit　Current　Calculation　in　LV　Auxiliary　Power　System

• 6.4　LV　Electrical　Equipment　Selection

• 6.5　LV　Electrical　Equipment　Coordination

7　Arrangement　of　Auxiliary　Electrical　Equipment

• 7.1　Auxiliary　Transformer

• 7.2　Auxiliary　Switchgear

• 7.3　Requirements　on　Buildings　and　Ventilation

8　Relay　Protection　Devices　of　Auxiliary　Power　Systems

• 8.1　General　Requirements

• 8.2　Single-phase　Earthing　Fault　Protection　in　Auxiliary　Power　System

• 8.3　Protection　for　Working　and　Backup　Reactor

• 8.4　Protection　for　Unit　Auxiliary　Transformer

• 8.5　Protection　for　LV　Auxiliary　Transformer

• 8.6　Protection　for　MV　Auxiliary　Motor

• 8.7　Protection　for　LV　Auxiliary　Motors

• 8.8　Protection　for　Auxiliary　Feeder-line

• 8.9　Protection　for　Diesel　Generator

9　Control，Signaling，Instrumentation　and　Automatic　Devices　of　Auxiliary　Power　System

• 9.1　Control　and　Signaling　of　Auxiliary　Power　System

• 9.2　Instrumentation　of　Auxiliary　Electrical　Equipment

• 9.3　Automatic　Devices　of　Auxiliary　Power　System

• 9.4　Control，Signaling，Instrumentation　and　Automatic　Devices　of　Diesel　Generator

Appendix　A　Design　Auxiliary　Power　Consumption　Rate　Estimation

Appendix　B　Load　Characteristic　for　Reference

Appendix　C　Selection　of　Neutral　Point　Earthing　Device　in　MV　Auxiliary　Power　System

Appendix　D　Selection　of　Diesel　Generator　Set

Appendix　E　Location　and　Quantity　of　Maintenance　Power　Distribution　Boxes

Appendix　F　Load　Capacity　Calculation

Appendix　G　Voltage-regulation　calculation

Appendix　H　Voltage　Calculation　during　Normal　Starting　of　Motor

Appendix　J　Voltage　Calculation　during　Self-starting　of　Grouped　Motors

Appendix　K　Temperature-rise　Calculation　of　Motor　during　Starting

Appendix　L　Practical　Calculation　of　Short-circuit　Current　in　MV　Auxiliary　Power　System

Appendix　M　Practical　Calculation　of　Short-circuit　Current　in　380V　Power　Centers

Appendix　N　Calculation　Curve　of　Short-circuit　Currentin　380V　Power　System

• N.1　Appended　Figures

• N.2　Notes　for　Using　the　Appended　Figures

Appendix　P　LV　Fuse　and　Circuit　Breaker　Selection

Appendix　Q　380V　LV　Electrical　Equipment　Combination　Form

Appendix　R　Calculation　of　Continuous　Operating　Current　in　380V　Circuit

Appendix　S　Instruments　of　Auxiliary　Electrical　Equipment

Explanation　of　Wording　in　this　Code

List　of　Quoted　Standards