PD IEC/TR 62271-305:2009
Current
The latest, up-to-date edition.
High-voltage switchgear and controlgear Capacitive current switching capability of air-insulated disconnectors for rated voltages above 52 kV
Hardcopy , PDF
English
25-11-2009
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FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Background and purpose
5 Switching tests
Annex A (informative) - Analysis
Annex B (informative) - Capacitive charging currents
Annex C (informative) - Test circuits
Pertains to high-voltage air-insulated disconnectors for rated voltages above 52 kV.
| Committee |
PEL/17
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This technical report applies to high-voltage air-insulated disconnectors for rated voltages above 52 kV. The report describes the capacitive current switching duty and provides guidance on laboratory testing to demonstrate the switching capability. Air-insulated disconnectors equipped with auxiliary interrupting devices are included under this scope.
NOTE For manually operated disconnectors, the in-service safety of the operator should be considered and it should be recognized that the results of the switching tests described herein (performed using motor-operated disconnectors) are not necessarily representative of the performance of such disconnectors in actual service. Due diligence should be exercised if the switching tests indicate that prolonged arc durations are probable.
| Standards | Relationship |
| IEC TR 62271-305:2009 | Identical |
| IEC 62271-1:2017 | High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear |
| IEC 62271-102:2001+AMD1:2011+AMD2:2013 CSV | High-voltage switchgear and controlgear - Part 102: Alternatingcurrent disconnectors and earthing switches |
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