JB/T 8970-2014 (English Version) PDF

Scope: This standard specifies the terms and definitions of discharge coils for high-voltage parallel capacitors, product models and product classifications, conditions of use, technical requirements, test classifications and test items, test requirements and test methods, marking, packaging, transportation, storage and factory documents. This standard is applicable to high-voltage shunt capacitors connected in parallel with high-voltage shunt capacitor banks in power systems with a rated frequency of 50 Hz and voltage levels of 6 kV to 66 kV and used to discharge the residual charge on the capacitor bank in a short period of time. Single-phase discharge coil (hereinafter referred to as discharge coil). When the discharge coil has a secondary winding, it can double as a voltage measurement and provide voltage signals for relay protection devices.

JB/T 8970-2014 Referenced Document

GB 1094.11 Power transformers- Part 11: Dry-type transformers
GB 1094.2 Power transformers.Part 2:Temperature rise for liquid-immersed transformers
GB 1094.3 Power transformers Part 3: Insulation levels,dielectric tests and external clearances in air
GB/T 11023 Test method of SF6 gas tightness for high—voltage switchgear*， 2018-12-28 Update
GB/T 16927.1 High-voltage test techniques.Part 1:General definitions and test requirements
GB/T 22071.2 Test guide for instrument transformers—Part 2: Inductive voltage transformers*， 2017-12-29 Update
GB/T 2900.15 Electrotechnical terminology. Transformer, instrument transformer, voltage regulator and reactor
GB/T 2900.16 Electrotechnical terminology. Power capacitors
GB/T 7252 Guide to the analysis and the diagnosis of gases dissolved in transformer oil
GB/T 7354 High-voltage test techniques—Partial discharge measurements*， 2018-09-17 Update
GB/T 7595 Quality of transformer oils in service*， 2017-05-12 Update
JB/T 501 Power Transformer Test Guidelines*， 2021-05-17 Update