IEEE DRAFT C37.083 : 1998

1 Introduction
1.1 General
1.2 Scope and Purpose
2 Definitions
3 References
4 Capacitive Current Switching Process
4.1 Closing Phenomena
4.2 Opening Phenomena
5 Basic Principles of Synthetic Capacitive Current Switching Testing
6 Requirements for Synthetic Capacitive Switching
6.1 General Conditions
6.2 Test Circuit Requirements
6.3 Test Voltage
7 Examples of Synthetic Capacitance Current Switching Test Circuits
7.1 Test Circuit w/AC Sources & Capacitive Branches
7.2 Test Circuit w/AC Sources and an Inductive Branch
7.3 Test Circuit w/One AC Source and a Tuned Circuit
       Current Branch
7.4 Test Circuit w/Tuned Circuit Voltage Branch
7.5 Test Circuit Not Utilizing AC Sources
8 Parameters, Test Procedures and Tolerances
8.1 High Current Interval
8.2 Recovery Voltage Interval
9 Voltage Regulation and Transients
9.1 High Impedance Source
9.2 Forced Current Zero
10 Closing (Making) Tests
10.1 Making without Current Interruption
10.2 Making with Current Interruption
11 Circuit Breakers Equipped with Opening Resistors
11.1 Direct Test Circuits
11.2 Two Part Synthetic Test Circuit
12 Test Duties
12.1 Test Duties 1A and 1B
12.2 Other Test Duties
13 Test Records
13.1 General
13.2 Recording of Test Results
13.3 Data Reporting Modifications
Figures
Figure 1 General Synthetic Test Circuit
Figure 2 Test Circuit with Two Capacitive Branches
Figure 3 Test Circuit with Inductive Current Branch
Figure 4 Test Circuit with Tuned Circuit Current Branch
Figure 5 Test Circuit with Tuned Circuit Voltage Branch
              (with Two Auxiliary Breakers)
Figure 6 Test Circuit with Tuned Circuit Voltage Branch
Figure 7 Test Circuit Not Utilizing AC Sources
Figure 8 Voltage Regulation at Interruption
Figure 9 Forced Current Zero Examples
Figure 10 Direct Test Circuit for Circuit Breakers with Opening
              Resistors
Figure 11 Circuit for Testing Main Contacts of Breaker with
              Opening Resistors
Figure 12 Circuit for Testing Resistor Interrupter
Figure 13 Circuit for Testing Resistor Interrupter

Provides basis for synthetic capacitive current switching tests and to setup guidelines for testing to demonstrate the capacitive switching rating of circuit breakers on a single phase basis.