IEEE C37.38-1989
$85.58
IEEE Standard for Gas Insulated, Metal-Enclosed Disconnecting, Interrupter, and Grounding Switches
| Published By | Publication Date | Number of Pages |
| IEEE | 1989 |
New IEEE Standard – Inactive-Withdrawn. Requirements for switches rated 72.5 kV and above, intended for use in metal-enclosed, gas-insulated substations, are presented. These switches are characterized by grounded, leak-tight metal enclosures that are filled with a gas (most commonly sulfur hexafluoride, SF6) at some pressure above atmospheric. Live parts are contained within the housing and insulated thereefrom by the gas and by suitable solid insulation that supports the live parts in their proper position. Gas-insulated switches are normally electrically connected to and structurally joined to other gas-insulated components, such as buses, gas-to-air bushings, circuit breakers, instrument transformers, cable terminations, etc. Switches may be manually or power operated. Service conditions, ratings, supporting structures, and nameplates are covered. Testing of disconnecting and grounding switches is covered.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | Title Page |
| 3 | Introduction Participants |
| 6 | CONTENTS |
| 7 | 1. Scope and References 1.1 Scope 1.2 References |
| 8 | 2. Definitions |
| 9 | 3. Service Conditions 3.1 Usual Service Conditions 3.2 Other Conditions That May Affect Design and Application 3.3 Unusual Service Conditions |
| 10 | 4. Equipment Ratings 4.1 Voltage Ratings 4.2 Rated Continuous Current (amperes rms) |
| 12 | 4.3 Temperature Limitations 4.4 Load Current-Carrying Capability Based on Actual Ambient Temperature Conditions 4.5 Short-Time Load Current Capability 4.6 Rated Momentary Current 4.7 Rated Short-Time Current |
| 13 | 4.8 Voltage Rise of Metallic Enclosure 4.9 Gas 4.10 Control Voltage 5. Disconnecting Switches 5.1 Construction |
| 15 | 5.2 Testing of Disconnecting Switches |
| 19 | 5.3 Switch Position Indication |
| 20 | 5.4 Operating Mechanisms 5.5 Interlocking 6. Interrupter Switches 6.1 Requirements 6.2 Interrupting Ratings 7. Grounding Switches 7.1 Types of Grounding Switches and Devices |
| 21 | 7.2 Testing of Grounding Switches |
| 23 | 7.3 Switch Position Indication 7.4 Operating Mechanisms 7.5 Interlocking 8. Supporting Structures |
| 24 | 9. Nameplates 9.1 Disconnecting Switches 9.2 Interrupter Switches 9.3 Maintenance Grounding Switches 9.4 Fault-Closing Maintenance Grounding Switches |
| 25 | 9.5 Fault-initiating Switches |
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