This standard specifies the terms and definitions, product models and classifications, usage conditions, technical requirements, test classifications and items, test requirements and methods, marking, packaging, transportation, storage, and factory documents of discharge coils for high-voltage parallel capacitors. This standard applies to single-phase discharge coils (hereinafter referred to as discharge coils) for high-voltage parallel capacitors in power systems with a rated frequency of 50Hz and voltage levels of 6 kV to 66 kV, which are connected in parallel with high-voltage parallel capacitor banks and used to discharge residual charges on the capacitor banks in a short period of time. When the discharge coil has a secondary winding, it can also be used for voltage measurement and provide voltage signals for relay protection devices. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB 1094.2 Power Transformers Part 2: Temperature Rise of Liquid Immersed Transformers GB 1094.3 Power Transformers Part 3: Insulation Levels, Insulation Tests, and External Insulation Air Clearances GB 1094.11 Power Transformers Part 11: Dry type Transformers GB/T 2900.15 Electrotechnical Terminology Transformers, Transformers Voltage Regulators and Reactors GB/T 2900.16 Electrotechnical Terminology Power Capacitors GB/T 7252 Guidelines for Analysis and Determination of Dissolved Gases in Transformer Oil GB/T 7354 Partial Discharge Measurement GB/T 7595 Quality of Transformer Oil in Operation GB/T 11023 High Voltage Switchgear Sulfur Hexafluoride Gas Sealing Test Method GB/T 16927.1 High Voltage Testing Technology Part 1: General Definitions and Test Requirements GB/T 22071.2 Transformer Testing Guidelines Part 2: Electromagnetic Voltage Transformers JB/T 501 Electrical Guide for testing power transformers
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