Live Tank Circuit Breakers Application Guide

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Table of contents8. Standards and tests 1098.1 Standards 1098.1.1 IEC 1098.1.1.1 Time definitions according to IEC 1108.1.2 ANSI/IEEE 1118.2 Circuit breaker testing 1118.3 Type tests 1128.3.1 Dielectric tests 1128.3.2 Radio Interference Voltage (RIV) tests 1138.3.3 Temperature rise tests 1138.3.4 Measurement of the resistance of the main circuit 1138.3.5 Short-time withstand current and peak withstand current tests 1138.3.6. Mechanical and environmental tests 1148.3.6.1 Mechanical operation test at ambient temperature 1148.3.6.2 Low and high temperatures tests/tightness tests 1158.3.6.3 High temperature test 1168.3.6.4 Humidity tests 1178.3.6.5 Ice tests 1178.3.6.6 Static terminal load test 1178.3.7 Making and breaking tests 1188.3.7.1 Preparation for tests 1188.3.7.2 Single-phase/three-phase testing 1188.3.7.3 Unit test/full pole test 1198.3.7.4 Direct tests 1198.3.7.5 Synthetic testing 1208.3.7.6 Summary of test duties 1218.3.7.7 Terminal fault 1218.3.7.8 Short-line fault 1218.3.7.9 Out-of-phase making and breaking tests 1228.3.7.10 Capacitive current switching 1228.3.7.11 Shunt reactor current switching tests 1238.4 Routine tests 1238.5 Test reports 1238.5.1 Type test reports 1248.5.2 Type test reports of independent laboratories 1248.5.3 STL organization 1248.5.4 SATS organization 1259. Reliability, maintenance and life cycle costs 1269.1 Failure statistics 1269.2 Electrical and mechanical life 1269.3 Maintenance 1289.4 Condition monitoring 1289.5 Life cycle costs 1299.6 Environmental aspects 12910. Selection of circuit breakers 1316 Application Guide | ABB Circuit Breakers
ScopeThis document gives background information for selection of the bestpossible circuit breaker solution for each particular application.The guide addresses utility, consultant and project engineers who specify andapply high-voltage circuit breakers.The guide addresses live tank circuit breakers in general for voltages up to 800 kV.The most usual requirements on a circuit breaker are mentioned, such as thecapabilities to handle network stresses, insulation levels, mechanical forcesand ambient conditions.The construction of circuit breaker poles and operating mechanisms will bementioned only briefly since these parts are described in ABB Buyer’s Guidefor Live Tank Circuit Breakers.ABB Circuit Breakers | Application Guide 7
Page 1 and 2: Live Tank Circuit BreakersApplicati
Page 4 and 5: Table of contents3.6.2 Recovery vol
Page 8 and 9: 1. Introduction1.1 What is a circui
Page 10 and 11: 1. IntroductionThe different types
Page 12 and 13: 2. Live tank circuit breaker design
Page 34 and 35: 3. Current switching and network st
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3. Current switching and network st
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Figure 3.28 Reignition overvoltages
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The rated static terminal loads, F
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Example:For a 245 kV circuit breake
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Example:Forces at three-phase short
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4.1.3.1 Measures to increase seismi
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connected anti-condensation heater.
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4.5 Sound effects of circuit breake
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This is higher than the highest all
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Combining these two equations gives
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This compensation is generally unne
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The shape of the lightning impulse
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Figure 6.3 Full switching impulseT
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For most of the rated voltages, IEC
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ONABA Power frequency voltage appli
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6.5 Atmospheric correction factorTh
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Example:A 170 kV circuit breaker is
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In nature, the change from one clas
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6.9 Insulating materialPorcelain is
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across the contact gap. If multiple
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As the number of faults per km tran
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7.2.3 SynchronizationIn power stati
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If a fault (short-circuit) occurs o
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properties in combination with the
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In many cases however, the existing
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In addition, the high amount of har
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8. Standards and tests8.1 Standards
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8.1.2 ANSI/IEEEThe standardization
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8.3.2 Radio Interference Voltage (R
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The resistance of the main current
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Figure 8.4 Test sequence for high t
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8.3.7.3 Unit test/full pole testOwi
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In order for the synthetic test to
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8.3.7.11 Shunt reactor current swit
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This organization is named STL, whi
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For each circuit breaker type, the
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9.5 Life Cycle CostsFor a user, a c
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Selection of circuit breakersTo get
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ABB Circuit Breakers | Application
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ABB Circuit Breakers | Application
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