Name: IEEE DRAFT C37.30 : D8 DEC 96
Brand: IEEE

IEEE DRAFT C37.30 : D8 DEC 96

Superseded

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STANDARD REQUIREMENTS FOR HIGH VOLTAGE SWITCHES

Superseded date

03-05-1998

Published date

01-12-2013

Publisher

Institute of Electrical & Electronics Engineers

1.0 OVERVIEW
2.0 REFERENCES
3.0 DEFINITIONS
4.0 SERVICE CONDITIONS
      4.1 Usual Service Conditions
      4.2 Unusual Service Conditions
5.0 RATINGS
      5.1 Rated Maximum Voltage
      5.2 Rated Dielectric Withstand Voltages
      5.3 Rated Power Frequency
      5.4 Rated Continuous Current
            5.4.1 Allowable Continuous Current
            5.4.2 Loadability
            5.4.3 Switch Part Class Designation
            5.4.4 Allowable Continuous Current Class
                    (ACCC) Designation
            5.4.5 Observable Temperance Rise
            5.4.6 Limits of Observable Temperature
      5.5 Rated Peak Withstand and Short-Time (Symmetrical)
            Withstand Current
            5.5.1 Rated Peak Withstand Current
            5.5.2 Rated Short-Time (Symmetrical)
                    Withstand Current
      5.6 Rated Making Current
            5.6.1 Rated Load Making Current
            5.6.2 Rated Fault Making Current
      5.7 Limit of Corona and Radio Influence Voltage
      5.8 Rated Closing Time (for power operated
            switches)
      5.9 Rated Ice-Breaking Ability
      5.10 Rated Mechanical Operations
      5.11 Rated Mechanical Terminal
      5.12 Rated Load Interrupting
      5.13 Ratings for Switching Shunt Capacitance
            5.13.1 Rated Interrupting Current Single
                    Capacitance
            5.13.2 Rated Switching Current, Parallel
                    Connected Capacitance
            5.13.3 Rated Differential Capacitance
                    Voltage (Maximum)
            5.13.4 Rated Differential Capacitance
                    Voltage (Minimum)
            5.13.5 Rated Capacitance Switching Transient
                    Overvoltage Ratio
      5.14 Rated Unloaded Transformer Interrupting
            Current
      5.15 Expected Switching Endurance
            5.15.1 Load-Interrupter Switch
            5.15.2 Fault-Initiating Switch
6.0 TEST PROCEDURE
7.0 NAMEPLATE MARKINGS
      7.1 General
      7.2 Interrupter Switches
      7.3 Fault-Initiating Switches
TABLES
1 Altitude Correction Factors
2 Switch Ratings
3 Temperature Limitations for Switches

Applies to all high-voltage enclosed indoor or outdoor, and nonenclosed indoor or outdoor air switches rated in excess of 1000 V. Includes such switch types as disconnecting, selector, horn-gap, grounding, etc., for manual or power operation, except the following: distribution enclosed single-pole air switches and distribution cutouts fitted with disconnecting blades.

DocumentType	Draft
PublisherName	Institute of Electrical & Electronics Engineers
Status	Superseded
SupersededBy	IEEE C37.30-1997

IEEE C37.32-2002	American National Standard for High Voltage Switches, Bus Supports, and Accessories Schedules of Preferred Ratings, Construction Guidelines, and Specifications
IEEE C37.37-1996	IEEE Loading Guide for AC High-Voltage Air Switches (in Excess of 1000 V)
IEEE C37.34-1994	IEEE Standard Test Code for High-Voltage Air Switches
IEEE C37.36b-1990	IEEE Guide to Current Interruption with Horn-Gap Air Switches

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IEEE DRAFT C37.30 : D8 DEC 96

Superseded

Table of Contents

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