IEEE 18:1992 pdf download.IEEE Standard for Shunt Power Capacitors.
IEEE 18 applies to capacitors rated 216 V or higher, 2.5 kvar or more, and designed for shunt connection to alternating current transmission and distribution systems operating at a nominal frequency of 50 or 60 Hz.
2. References
This standard shall be used in conjunction with (he following publications:
ANSI Z55.l-1967 (withdrawn 1987), Gray Finishes for Industrial Apparatus and Equipment.’
ANSI/NFPA 70-1990. National Electrical Code.2
IEEE Std 21-1976, General Requirements and Test Procedures for Outdoor Apparatus Bushings.3
IEEE Std 100-1992. The New IEEE Standard Dictionary of Electrical and Electronics Terms.
IEEE Std 1036-1992, IEEE Guide for Application of Shunt Power Capacitors.
IEEE C37.99- 1990, IEEE Standard Guide for Protection of Shunt Capacitor Banks (ANSI).
NEMA 107-1987, Methods of Measurement of Radio Influence Voltage (RIV) of High-Voltage Apparatus.4
NEMA CP1-1988, Shunt Capacitors.
3. Definitions
3.1 ambient temperature: The temperature of the medium, such as air, water, or earth, into which the heal of the equipment is dissipated.
NOTES
1—For self-ventilated equipment. the ambient temperature is the average temperature of the air in the immediate neighborhood of the equipment.
2—For air- or gas-cooled equipment with forced ventilation or secondary water cooling, the ambient temperawre is taken as that of the ingoing air or cooling gas.
3—For self-ventilated enclosed (including oil-immersed) equipment considered as a complete unit, the ambient temperature is the average temperature of the air outside of the enclosure in the immediate neighborhood of the equipment. See 5.7 and table 2.
3.2 capacitor bank: An assembly at one location of capacitors and all necessary accessories, such as switching equipment. protective equipment, controls, etc., required for a complete operating installation. It may he a collection of components assembled at the operating site or may include one or more piece(s) of factory-assembled equipment.
3.3 capacitor equipment: An assembly of capacitors with associated accessories, such as fuses, switches, etc., all mounted on a common frame for handling, transportation, and operation as a single unit.
3.4 discharge device: An internal or external device intentionally connected in shunt with the terminals of a capacitor for the purpose of reducing the residual voltage after the capacitor is disconnected from an energized line.
3.5 enclosed capacitor: A capacitor having enclosed terminals. The enclosure is provided with means for connection to a rigid or flexible conduit.
3.6 fused capacitor: A capacitor having fuses mounted on its terminals, or inside a terminal enclosure, or inside the capacitor case, for the purpose of interrupting a failed capacitor.
3.7 indoor (prelix): Not suitable for exposure to the weather.
NOTE—For example, an indoor capacitor unit is designed for indoor service or for use in a weatherproof housing. (See also: outdoor.)
3.8 kilovar (1000 vars): The practical unit of reactive power, equal to the product of the rms voltage in kilovolts (kV), the mis current in amperes (A), and the sine of the angle between them.IEEE 18 pdf download.