GB/T 17702-2021 Capacitors for power electronics

Scope

This document applies to capacitors used in power electronics applications. The systems using these capacitors typically operate at frequencies below 15 kHz, while the pulse frequency may reach 5 to 10 times the operating frequency. This document classifies capacitors installed in housings as AC capacitors and DC capacitors. It covers a wide range of capacitor technologies and their various applications, such as overvoltage protection, DC and filtering, switching circuits, energy storage, and auxiliary converters. This document does not apply to: -- Capacitors for induction heating devices operating at frequencies below 50 kHz (see IEC 601101 and IEC 601102); -- Capacitors for motors and similar applications (see IEC 602521 and IEC 602522); -- Capacitors used in circuits to block one or more harmonics in the power grid; -- Small AC capacitors for fluorescent lamps and discharge lamps (see IEC 61048 and IEC 61049); -- Capacitors for suppressing radio interference (see IEC 6038414); -- Parallel capacitors for AC power systems with a nominal voltage above 1,000 V (see IEC 608711 and IEC TS 608712); -- Self-healing parallel capacitors for AC power systems with a nominal voltage of 1,000 V or less (see IEC 608311 and IEC 608312); -- Non-self-healing parallel capacitors for AC power systems with a nominal voltage of 1,000 V or less (see IEC 609311 and IEC 609312); -- Electronic capacitors not used in power circuits; -- Series capacitors for power systems (see IEC 60143); -- Coupling capacitors and capacitive dividers (see IEC 603581); -- Microwave oven capacitors (see IEC 612701); -- Capacitors for rail transportation. Application examples are provided in Section 9.1.

Development Information

Replace the following standards

Referenced Standards

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