New Version Available
This study guide is out of date, click here to see the latest release.
This study guide is out of date, click here to see the latest release.
- Use, application, and testing - Identify and record type, construction, characteristics and ratings. Perform insulation, inductance, capacitance, and conductance tests. Confirm correct capacitor discharge rate in accordance with National Electrical Code requirements.
- Important IEEE Standards
- IEEE C57.16 Standard Requirements, Terminology, and Test Code for Dry-Type Air-Core Series-Connected Reactors
- IEEE C62.33 Standard Test Specifications for Varistor Surge-Protective Devices
- Capacitors
- Capacitors in Parallel The voltage ( Vc ) connected across all the capacitors that are connected in parallel is THE SAME. Then, Capacitors in Parallel have a "common voltage" supply across them.
- Capacitors in Series Capacitors are said to be connected together "in series" when they are effectively "daisy chained" together in a single line. The charging current ( iC ) flowing through the capacitors is THE SAME for all capacitors as it only has one path to follow.
- Capacitive reactance calculator XC Capacitive reactance (symbol XC) is a measure of a capacitor's opposition to AC (alternating current). Like resistance it is measured in ohms, but reactance is more complex than resistance because its value depends on the frequency (f) of the electrical signal passing through the capacitor as well as on the capacitance, C.
- Checking Capacitor Banks for Failed Capacitors [PDF] This technical note provides background information on capacitance testing of medium voltage double bushing capacitors commonly used in capacitor banks and harmonic filter banks with rated line voltages greater than 2.4kV.
- Reactors
- Current limiting reactor basics Current limiting reactors can reduce short-circuit currents, which result from plant expansions and power source additions, to levels that can be adequately handled by existing distribution equipment.
- How to measure inductance of a three phase reactor [PDF] The test setup consists of a variable high current 3 phase 60 hertz supply with meters for voltage and current connected as shown.
- Surge Protection
- Surge Arresters: Selection, Application and Testing Overview A comprehensive guide to surge arrester selection, application, maintenance and testing.
- Power factor testing of surge (lighting) arresters The purpose of a surge (lighting) arrester is to limit the over voltages that may occur across transformers and other electrical apparatus due either to lightning or switching surges. This guide explains the power factor test procedure of these surge arresters.
- Important IEEE Standards
�Getting Started