IEEE Std C37.100.2:2018 pdf download.IEEE Standard for Common Requirements for Testing of AC Capacitive Current Switching Devices over 1000 V.
This standard provides common requirements for testing of ac capacitive current switching devices over
1000 V.
1.2 Usage of terms
Each of’ the various U.S. and international standards use different terminology for operating a switch. For this standard, the following terminology is used. “Making” applies to closing the contacts with voltage applied and “breaking” applies to operations that interrupt current. The term “switching” refers to the act of making then breaking. The terms “opening’1 and “closing” refer to the mechanical action (i.e., without current in the main current path or voltage present). Many existing standards and definitions use opening and closing to describe actions both with and without current how and rely upon the context of the usage to inform the reader whether or not current is made or interrupted. When referring to other documents and definitions the contextual nature of these works should be understood; it is not the purpose of this document to change the meaning of these other documents. For example, the IEEE Standards Dictionari’ Online uses the word “opening” rather than “breaking” in the definitions of reignition and restrike. The context, in particular the words “resumption of current” indicates to the reader that “breaking,” as used in this document, is the activity under discussion.
2. Normative references
The following referenced documents are indispensable for the application of this document (i.e., they must be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies.
3. Definitions, acronyms, and abbreviations
3.1 Definitions
For the purposes of this document, the following terms and definitions apply. The IEEE Standards Dictionary Online should be consulted for terms not defined in this clause.3 These definitions are not intended to embrace all possible meanings of the terms. They are intended solely to establish the meanings of terms used in power switchgear. IEEE Std C37.20.1OTM [B 10], IEEE Std C37.100.5Th1, and IEEE Std C37.04aTM2003 [B4] should be referenced for terms not defined in this clause.
capacitive current switching device: A switching device capable of making and breaking capacitive currents.
capacitive switching current: The rms symmetrical value of the capacitive load current that a capacitive current switching device is required to make and break as part of its designated operation duty cycle.
transient inrush current: The high-frequency component of current that flows during a making operation of a switching device.
transient inrush frequency: The frequency of the transient inrush current.
3.2 Acronyms and abbreviations
BC capacitor bank breaking current
C20 tests at 10% to 25% of the capacitive current switching rating
C50 tests at 45% to 55% of the capacitive current switching rating
Cl00 tests at 100% of the capacitive current switching rating
CC cable-charging breaking current.IEEE Std C37.100.2 pdf download.